| 1 | 21st Century Software | | United Kingdom | |
| 2 | 221B Software Development | | United Kingdom | |
| 3 | 4-Sight Computing | | United Kingdom | |
| 4 | 48K | | United Kingdom | |
| 5 | 4Mation Educational Resources Ltd | | United Kingdom | |
| 6 | 50/50 Club Software | | United Kingdom | |
| 7 | 5D Software | | United Kingdom | |
| 8 | 5th Dimension | | United Kingdom | |
| 9 | 8th Day Software | | United Kingdom | |
| 10 | A&N Projects | | United Kingdom | |
| 11 | A-Soft | | United Kingdom | |
| 12 | A.D. Software | | United Kingdom | |
| 13 | A.J. Robinson Software | | United Kingdom | |
| 14 | A.P. Berry | | United Kingdom | |
| 15 | A.V.S. | | United Kingdom | |
| 16 | Aardvark Software | | United Kingdom | |
| 17 | Aardvark Software of Hartlepool | | United Kingdom | |
| 18 | Aasvoguelle Productions | | United Kingdom | |
| 19 | Abacus Programs | | United Kingdom | |
| 20 | Abacus Software | | United Kingdom | |
| 21 | Abacus Software | | United Kingdom | |
| 22 | Abbex Electronics Ltd | | United Kingdom | |
| 23 | Abbeydale Designers Ltd | | United Kingdom | |
| 24 | Abersoft | | United Kingdom | |
| 25 | Abrasco | | United Kingdom | |
| 26 | Accord Data International Ltd | | United Kingdom | |
| 27 | ACD Computer Services | | United Kingdom | |
| 28 | ACD Software | | United Kingdom | |
| 29 | ACE Services | | United Kingdom | |
| 30 | Ace Software | | United Kingdom | |
| 31 | ACME Software Ltd | | United Kingdom | |
| 32 | ACS Software | | United Kingdom | |
| 33 | Active Minds | | United Kingdom | |
| 34 | Activision Inc | | United Kingdom | |
| 35 | Adam Enterprises | | United Kingdom | |
| 36 | Adams Software | | United Kingdom | |
| 37 | Add-On Electronics Ltd | | United Kingdom | |
| 38 | Adsoft | | United Kingdom | |
| 39 | Advance Software Promotions Ltd | | United Kingdom | |
| 40 | Advanced Memory Systems Ltd | | United Kingdom | |
| 41 | Adventure International | | United Kingdom | |
| 42 | Adventure Software | | United Kingdom | |
| 43 | Adventurers Anonymous | | United Kingdom | |
| 44 | Adventuresoft UK Ltd | | United Kingdom | |
| 45 | AFI Software | | United Kingdom | |
| 46 | AFM | | United Kingdom | |
| 47 | AGF Hardware | | United Kingdom | |
| 48 | AH Software | | United Kingdom | |
| 49 | Airline Software | | United Kingdom | |
| 50 | Airsoft Software Development | | United Kingdom | |
| 51 | Akadimias Software | | United Kingdom | |
| 52 | Akaido Arcade Systems | | United Kingdom | |
| 53 | Akom Ltd | | United Kingdom | |
| 54 | Alan's Software | | United Kingdom | |
| 55 | Alchemist Research | | United Kingdom | |
| 56 | Alchemist Software | | United Kingdom | |
| 57 | Alchemy Software | | United Kingdom | |
| 58 | Alex Cornhill | | United Kingdom | |
| 59 | Alexander Computing Systems | | United Kingdom | |
| 60 | Alfo Software | | United Kingdom | |
| 61 | Algray Software | | United Kingdom | |
| 62 | Alien - The New Dimension | | United Kingdom | |
| 63 | Alisoft | | United Kingdom | |
| 64 | Allanson Computing | | United Kingdom | |
| 65 | Alpha Computer Products | | United Kingdom | |
| 66 | Alpha Software | | United Kingdom | |
| 67 | Alpha Systems | | United Kingdom | |
| 68 | AlphaPlus Educational Software | | United Kingdom | |
| 69 | Alphasoft | | United Kingdom | |
| 70 | Altair Software | | United Kingdom | |
| 71 | Alternative Software Ltd | | United Kingdom | |
| 72 | Alto-Tech Software | | United Kingdom | |
| 73 | AM Electronics | | United Kingdom | |
| 74 | Amazing Games | | United Kingdom | |
| 75 | Amazing Games | | United Kingdom | |
| 76 | Amazon Systems | | United Kingdom | |
| 77 | Amba Software | | United Kingdom | |
| 78 | AME Software | | United Kingdom | |
| 79 | Amfas Computer Software Ltd | | United Kingdom | |
| 80 | AMIS | | United Kingdom | |
| 81 | Amoeba Software | | United Kingdom | |
| 82 | Ampalsoft | | United Kingdom | |
| 83 | Amplicon Micro System Ltd | | United Kingdom | |
| 84 | Anco Software | | United Kingdom | |
| 85 | Anco Software Ltd | | United Kingdom | |
| 86 | Andic Software | | United Kingdom | |
| 87 | Andromeda Software | | United Kingdom | |
| 88 | Andromeda Software Ltd | | United Kingdom | |
| 89 | Anik Microsystems | | United Kingdom | |
| 90 | Anima Scientific Computing | | United Kingdom | |
| 91 | Annvic Racing Advisory Services Ltd | | United Kingdom | |
| 92 | Antisoft | | United Kingdom | |
| 93 | Anubis Software | | United Kingdom | |
| 94 | Anvil Computing | | United Kingdom | |
| 95 | APA | | United Kingdom | |
| 96 | Apocalypse Software | | United Kingdom | |
| 97 | Apogee Games | | United Kingdom | |
| 98 | Appleby Structured Systems | | United Kingdom | |
| 99 | Appledean Systems | | United Kingdom | |
| 100 | Applications Software Specialities | | United Kingdom | |
| 101 | Applied Systems Knowledge Ltd | | United Kingdom | |
| 102 | Aquarius Software | | United Kingdom | |
| 103 | Arc Developments | | United Kingdom | |
| 104 | Arcade Age | | United Kingdom | |
| 105 | Arcade Software | | United Kingdom | |
| 106 | Arcanum Software Developments | | United Kingdom | |
| 107 | Arena Software | | United Kingdom | |
| 108 | Argus Press PLC | | United Kingdom | |
| 109 | Ariolasoft UK Ltd | | United Kingdom | |
| 110 | Armadillo Soft | | United Kingdom | |
| 111 | ARP Software | | United Kingdom | |
| 112 | Arrow Books Ltd | | United Kingdom | |
| 113 | Arrowsoft | | United Kingdom | |
| 114 | Artic Computing Ltd | | United Kingdom | |
| 115 | Artronic Products Ltd | | United Kingdom | |
| 116 | Ashby Computers & Graphics Ltd | | United Kingdom | |
| 117 | Ashleysoft | | United Kingdom | |
| 118 | Ashminster Computing Ltd | | United Kingdom | |
| 119 | Asirus Software | | United Kingdom | |
| 120 | ASK Software | | United Kingdom | |
| 121 | Assassin Software | | United Kingdom | |
| 122 | Astonishing Animations | | United Kingdom | |
| 123 | Astra Software | | United Kingdom | |
| 124 | Astral Software | | United Kingdom | |
| 125 | Astral Software Ltd | | United Kingdom | |
| 126 | Astro Programmes | | United Kingdom | |
| 127 | Astro Software | | United Kingdom | |
| 128 | Astrobyte Computer Games | | United Kingdom | |
| 129 | Astrocalc | | United Kingdom | |
| 130 | Astros Productions | | United Kingdom | |
| 131 | Astrosoft Games | | United Kingdom | |
| 132 | Atari Inc | | United Kingdom | |
| 133 | Ate Bit | | United Kingdom | |
| 134 | Atlantis Software Ltd | | United Kingdom | |
| 135 | Atlas Adventure Software | | United Kingdom | |
| 136 | Audio Visual Magic | | United Kingdom | |
| 137 | Audio-Visual | | United Kingdom | |
| 138 | Audiogenic Software Ltd | | United Kingdom | |
| 139 | Automata UK Ltd | | United Kingdom | |
| 140 | Avalon Computing | | United Kingdom | |
| 141 | Avalon Software Ltd | | United Kingdom | |
| 142 | AVB Software | | United Kingdom | |
| 143 | AVC Software | | United Kingdom | |
| 144 | Aviation Computer Services | | United Kingdom | |
| 145 | Avonsoft | | United Kingdom | |
| 146 | AVP Computing | | United Kingdom | |
| 147 | AW Software | | United Kingdom | |
| 148 | AWA Software | | United Kingdom | |
| 149 | Axis Software | | United Kingdom | |
| 150 | Axxent Software | | United Kingdom | |
| 151 | Azed Software | | United Kingdom | |
| 152 | Aztec Software | | United Kingdom | |
| 153 | B.E. Software | | United Kingdom | |
| 154 | B.G. Services | | United Kingdom | |
| 155 | B.O.S. Software | | United Kingdom | |
| 156 | B.Sides Software | | United Kingdom | |
| 157 | Badge Electronics | | United Kingdom | |
| 158 | BAJ Services | | United Kingdom | |
| 159 | Balsoft Designs | | United Kingdom | |
| 160 | Bamby Software | | United Kingdom | |
| 161 | Bandit Video Games | | United Kingdom | |
| 162 | Barn Software | | United Kingdom | |
| 163 | Barry Jones | | United Kingdom | |
| 164 | Bartle Electronics | | United Kingdom | |
| 165 | Base Two Software | | United Kingdom | |
| 166 | Basic Software | | United Kingdom | |
| 167 | Basic Software Services | | United Kingdom | |
| 168 | Bass-On | | United Kingdom | |
| 169 | Bastec Software | | United Kingdom | |
| 170 | Bax Studio | | United Kingdom | |
| 171 | Beacon Software | | United Kingdom | |
| 172 | Beau-Jolly Ltd | | United Kingdom | |
| 173 | Bec Sports | | United Kingdom | |
| 174 | Beechnut | | United Kingdom | |
| 175 | Bel Tech | | United Kingdom | |
| 176 | Bellesoft | | United Kingdom | |
| 177 | Bellflower Software | | United Kingdom | |
| 178 | Benn Computer Consultants | | United Kingdom | |
| 179 | Bernard Babani Publishing Ltd | | United Kingdom | |
| 180 | Betasoft | | United Kingdom | |
| 181 | Betterbytes Software | | United Kingdom | |
| 182 | Bettertech | | United Kingdom | |
| 183 | Big Ben Software | | United Kingdom | |
| 184 | Bignose Software | | United Kingdom | |
| 185 | Bill & Marion Clews | | United Kingdom | |
| 186 | Bill Percy | | United Kingdom | |
| 187 | Binary Design Ltd | | United Kingdom | |
| 188 | Binary Dynamics | | United Kingdom | |
| 189 | Binary Innovations | | United Kingdom | |
| 190 | Binary Star Technology | | United Kingdom | |
| 191 | Binary Vision | | United Kingdom | |
| 192 | Birdbrain Software | | United Kingdom | |
| 193 | Birdseed Software | | United Kingdom | |
| 194 | Birdwing Software | | United Kingdom | |
| 195 | Bitchin' Software | | United Kingdom | |
| 196 | BitmapSoft | | United Kingdom | |
| 197 | Bizarre Computer Productions | | United Kingdom | |
| 198 | Bizarre Developments | | United Kingdom | |
| 199 | BJ Enterprises | | United Kingdom | |
| 200 | Black Cat Software | | United Kingdom | |
| 201 | Black Jet | | United Kingdom | |
| 202 | Black Knight Computers Ltd | | United Kingdom | |
| 203 | Black Mountain Software | | United Kingdom | |
| 204 | Black Run Software | | United Kingdom | |
| 205 | Blakelow Software | | United Kingdom | |
| 206 | Blandford Press Ltd | | United Kingdom | |
| 207 | Blindmouse Ltd | | United Kingdom | |
| 208 | Blitter Animations | | United Kingdom | |
| 209 | Block-Byte Computing | | United Kingdom | |
| 210 | Blue Text | | United Kingdom | |
| 211 | Blue Turtle | | United Kingdom | |
| 212 | Bob's Stuff | | United Kingdom | |
| 213 | Bobosoft | | United Kingdom | |
| 214 | Bodgesoft | | United Kingdom | |
| 215 | Bodkin Software | | United Kingdom | |
| 216 | Bond Systems | | United Kingdom | |
| 217 | Boniosoft | | United Kingdom | |
| 218 | Book Club Associates | | United Kingdom | |
| 219 | Boomer Software | | United Kingdom | |
| 220 | Boots | | United Kingdom | |
| 221 | Bosoft | | United Kingdom | |
| 222 | Bourne Educational Software Ltd | | United Kingdom | |
| 223 | Boxoft | | United Kingdom | |
| 224 | Bradway Software | | United Kingdom | |
| 225 | Brane Software | | United Kingdom | |
| 226 | Braveline Ltd | | United Kingdom | |
| 227 | Breadhill Software | | United Kingdom | |
| 228 | Bridge Software | | United Kingdom | |
| 229 | Bridgebrook Intek | | United Kingdom | |
| 230 | Brimardon Computer Racing Service | | United Kingdom | |
| 231 | Britannia Software Ltd | | United Kingdom | |
| 232 | British Micro | | United Kingdom | |
| 233 | British Sporting Services | | United Kingdom | |
| 234 | Broadcast Services | | United Kingdom | |
| 235 | Broadsoft | | United Kingdom | |
| 236 | Bruce Publishing | | United Kingdom | |
| 237 | Bubble Bus Software | | United Kingdom | |
| 238 | Bucsoft | | United Kingdom | |
| 239 | Buffer Micro Ltd | | United Kingdom | |
| 240 | Bugbear Games | | United Kingdom | |
| 241 | Bulldog Software [2] | | United Kingdom | |
| 242 | Bulldog Software [3] | | United Kingdom | |
| 243 | Buntasoft | | United Kingdom | |
| 244 | Bureau of Information Science | | United Kingdom | |
| 245 | Busy Bee Software | | United Kingdom | |
| 246 | Buttercraft Software | | United Kingdom | |
| 247 | Butterfly Software | | United Kingdom | |
| 248 | Buzzsoft | | United Kingdom | |
| 249 | Byron Software | | United Kingdom | |
| 250 | Byte Back | | United Kingdom | |
| 251 | Bytewell | | United Kingdom | |
| 252 | C&S | | United Kingdom | |
| 253 | C-Tech | | United Kingdom | |
| 254 | C.S.D. Co Ltd | | United Kingdom | |
| 255 | Cable Software | | United Kingdom | |
| 256 | Cactus | | United Kingdom | |
| 257 | Cadsoft | | United Kingdom | |
| 258 | Calpac Computer Software | | United Kingdom | |
| 259 | Cambic Software | | United Kingdom | |
| 260 | Cambridge Computing Research Ltd | | United Kingdom | |
| 261 | Cambridge Micro Software | | United Kingdom | |
| 262 | Cambridge Microcomputer Centre | | United Kingdom | |
| 263 | Cambridge Microelectronics | | United Kingdom | |
| 264 | Camden Council | | United Kingdom | |
| 265 | Camel Micros | | United Kingdom | |
| 266 | Camel Software | | United Kingdom | |
| 267 | Campbell Systems | | United Kingdom | |
| 268 | Canvas | | United Kingdom | |
| 269 | Cardex | | United Kingdom | |
| 270 | Caris Software | | United Kingdom | |
| 271 | Carnell Software Ltd | | United Kingdom | |
| 272 | Carol & Paul Bradbury | | United Kingdom | |
| 273 | Carrium Software | | United Kingdom | |
| 274 | Carter Follis Software Associates | | United Kingdom | |
| 275 | Casey Bee Games | | United Kingdom | |
| 276 | Castle Software | | United Kingdom | |
| 277 | Casventures Ltd | | United Kingdom | |
| 278 | Catalyst Coders | | United Kingdom | |
| 279 | Cathedral Software | | United Kingdom | |
| 280 | Catra Software | | United Kingdom | |
| 281 | Cavern Software | | United Kingdom | |
| 282 | CCP Software | | United Kingdom | |
| 283 | CDT Productions | | United Kingdom | |
| 284 | Celerysoft | | United Kingdom | |
| 285 | Celina Ltd | | United Kingdom | |
| 286 | Celtic Revision Software | | United Kingdom | |
| 287 | Celtic Software | | United Kingdom | |
| 288 | Celyn Jones Software | | United Kingdom | |
| 289 | Centaurisoft | | United Kingdom | |
| 290 | Central Solutions | | United Kingdom | |
| 291 | CentreSoft | | United Kingdom | |
| 292 | Century City Software Ltd | | United Kingdom | |
| 293 | Ceran Software | | United Kingdom | |
| 294 | Chad Software | | United Kingdom | |
| 295 | Chalksoft Ltd | | United Kingdom | |
| 296 | Challenge Software | | United Kingdom | |
| 297 | Chameleon Computer Games | | United Kingdom | |
| 298 | Chameleon Computers Ltd | | United Kingdom | |
| 299 | Channel 4 Television | | United Kingdom | |
| 300 | Channel 8 Software | | United Kingdom | |
| 301 | Chapman and Beckingham Software | | United Kingdom | |
| 302 | Charles Letts & Co | | United Kingdom | |
| 303 | Charlton Tutorials | | United Kingdom | |
| 304 | Charly Records | | United Kingdom | |
| 305 | Cheep Games | | United Kingdom | |
| 306 | Cheese Freak Software | | United Kingdom | |
| 307 | Cheshire Micro Design | | United Kingdom | |
| 308 | Chewsoft | | United Kingdom | |
| 309 | Chibur | | United Kingdom | |
| 310 | Childsplay Software | | United Kingdom | |
| 311 | Choice Software Ltd | | United Kingdom | |
| 312 | Christopher James Software Ltd | | United Kingdom | |
| 313 | Chromasoft | | United Kingdom | |
| 314 | Church of Scotland Education Software | | United Kingdom | |
| 315 | Church of the Latter Day Speccy | | United Kingdom | |
| 316 | Citizen Software | | United Kingdom | |
| 317 | Clarity Software Ltd | | United Kingdom | |
| 318 | Class Games | | United Kingdom | |
| 319 | Classic Computing | | United Kingdom | |
| 320 | Classic Software | | United Kingdom | |
| 321 | Cleva Computerware | | United Kingdom | |
| 322 | Clever Music | | United Kingdom | |
| 323 | Clockwize | | United Kingdom | |
| 324 | Cloud 10 Software | | United Kingdom | |
| 325 | Cloud 9 Software | | United Kingdom | |
| 326 | Clover Services | | United Kingdom | |
| 327 | Club Software | | United Kingdom | |
| 328 | Clwyd Adventure Software | | United Kingdom | |
| 329 | Cobra Computer Software | | United Kingdom | |
| 330 | Collins Educational Ltd | | United Kingdom | |
| 331 | Colne Robotics Co Ltd | | United Kingdom | |
| 332 | Colonel Charisma Team | | United Kingdom | |
| 333 | Coma Software | | United Kingdom | |
| 334 | Comet Software | | United Kingdom | |
| 335 | Companion Software | | United Kingdom | |
| 336 | Compuden Software | | United Kingdom | |
| 337 | Compusound | | United Kingdom | |
| 338 | Computascope for Fun | | United Kingdom | |
| 339 | Computasolve | | United Kingdom | |
| 340 | Computer & Software Centre | | United Kingdom | |
| 341 | Computer Choice | | United Kingdom | |
| 342 | Computer Magic | | United Kingdom | |
| 343 | Computer Publications | | United Kingdom | |
| 344 | Computer Rating Methods | | United Kingdom | |
| 345 | Computer Records | | United Kingdom | |
| 346 | Computer Services | | United Kingdom | |
| 347 | Computer Wares | | United Kingdom | |
| 348 | Computer Wargame Corporation | | United Kingdom | |
| 349 | Computerhouse [UK] Ltd | | United Kingdom | |
| 350 | Computeristic | | United Kingdom | |
| 351 | Computerlock | | United Kingdom | |
| 352 | Computers for Education | | United Kingdom | |
| 353 | Computerworld | | United Kingdom | |
| 354 | ComTec | | United Kingdom | |
| 355 | Concept Animations | | United Kingdom | |
| 356 | Concept Software Ltd | | United Kingdom | |
| 357 | Consolidated Software Marketing Ltd | | United Kingdom | |
| 358 | Consult Software Ltd | | United Kingdom | |
| 359 | Consumers' Association | | United Kingdom | |
| 360 | Continental Software | | United Kingdom | |
| 361 | Contrast Software | | United Kingdom | |
| 362 | Convention | | United Kingdom | Yeovil |
| 363 | Coolguys Ltd | | United Kingdom | |
| 364 | CORE Design Ltd | | United Kingdom | |
| 365 | Cornhill Services | | United Kingdom | |
| 366 | Corwen Computer Systems | | United Kingdom | |
| 367 | Cosine Systems | | United Kingdom | |
| 368 | Cosmic Cockerel | | United Kingdom | |
| 369 | Cosmic Software | | United Kingdom | |
| 370 | Cottage Computing | | United Kingdom | |
| 371 | Court Software | | United Kingdom | |
| 372 | Cowl Systems | | United Kingdom | |
| 373 | CP Software | | United Kingdom | |
| 374 | CPL Computing | | United Kingdom | |
| 375 | Cracking Software | | United Kingdom | |
| 376 | Craig Communications Ltd | | United Kingdom | |
| 377 | Craigmount Computer Centre | | United Kingdom | |
| 378 | CRC Software | | United Kingdom | |
| 379 | Cream Computers | | United Kingdom | |
| 380 | Creative Edge | | United Kingdom | |
| 381 | Creative Juices | | United Kingdom | |
| 382 | Creative Materials Ltd | | United Kingdom | |
| 383 | Creative Micro Stimulation | | United Kingdom | |
| 384 | Creative Reality | | United Kingdom | |
| 385 | Creative Technology Group Ltd | | United Kingdom | |
| 386 | Creative.Radical.Alternative.Production Games | | United Kingdom | |
| 387 | Cronosoft | | United Kingdom | |
| 388 | Cropthorne Software | | United Kingdom | |
| 389 | Cross Software | | United Kingdom | |
| 390 | Crusader Computing | | United Kingdom | |
| 391 | CSL Microdata | | United Kingdom | |
| 392 | CSP Systems | | United Kingdom | |
| 393 | Currys | | United Kingdom | |
| 394 | Curtis Jacobs Software Design Ltd | | United Kingdom | |
| 395 | Custom Software | | United Kingdom | |
| 396 | CustomData Ltd | | United Kingdom | |
| 397 | Cybadyne | | United Kingdom | |
| 398 | Cybercon Enterprises | | United Kingdom | |
| 399 | Cybernetic Applications Ltd | | United Kingdom | |
| 400 | Cyclone | | United Kingdom | |
| 401 | Cygnus Software | | United Kingdom | |
| 402 | D&H Games | | United Kingdom | |
| 403 | D-B Software | | United Kingdom | |
| 404 | D.A.C.C. Ltd | | United Kingdom | |
| 405 | D.C. Software | | United Kingdom | |
| 406 | D.G.R. Computer Products | | United Kingdom | |
| 407 | D.N.D. Software | | United Kingdom | |
| 408 | D.S.M.C. | | United Kingdom | |
| 409 | D3M Software | | United Kingdom | |
| 410 | Dagenham Design Cell | | United Kingdom | |
| 411 | Daggersoft | | United Kingdom | |
| 412 | Dalali Software Ltd | | United Kingdom | |
| 413 | Danik Educational | | United Kingdom | |
| 414 | Dark Green Enterprises | | United Kingdom | |
| 415 | Data Computing Systems | | United Kingdom | |
| 416 | Database Systems | | United Kingdom | |
| 417 | Databyte | | United Kingdom | |
| 418 | Datalink Systems | | United Kingdom | |
| 419 | Datasoft | | United Kingdom | |
| 420 | Daton Software | | United Kingdom | |
| 421 | Davic Games | | United Kingdom | |
| 422 | David M. Haggarty | | United Kingdom | |
| 423 | David Martin Associates Ltd | | United Kingdom | |
| 424 | David Todd Software | | United Kingdom | |
| 425 | DAZ Computer Software | | United Kingdom | |
| 426 | De Barron Software Ltd | | United Kingdom | |
| 427 | Dead Donkey Designs | | United Kingdom | |
| 428 | Dealer Deals Ltd | | United Kingdom | |
| 429 | Dean Software | | United Kingdom | |
| 430 | Deanysoft | | United Kingdom | |
| 431 | Dee-Kay Systems | | United Kingdom | |
| 432 | Deep Thought Software | | United Kingdom | |
| 433 | Deep Thought Software | | United Kingdom | |
| 434 | Delbert the Hamster Software | | United Kingdom | |
| 435 | Delos Software | | United Kingdom | |
| 436 | Delta 3 Software | | United Kingdom | |
| 437 | Delta 4 Software | | United Kingdom | |
| 438 | Delta 7 Software | | United Kingdom | |
| 439 | Delta Research Ltd | | United Kingdom | |
| 440 | Delta Software | | United Kingdom | |
| 441 | Deltarho Software | | United Kingdom | |
| 442 | Deltasoft | | United Kingdom | |
| 443 | Deltoid Developments | | United Kingdom | |
| 444 | Dementia | | United Kingdom | |
| 445 | Dennis Publishing | | United Kingdom | |
| 446 | Dented Designs | | United Kingdom | |
| 447 | Dentron Computers | | United Kingdom | |
| 448 | Design Design Software | | United Kingdom | |
| 449 | Desire | | United Kingdom | |
| 450 | Destiny Software | | United Kingdom | |
| 451 | DEV Software | | United Kingdom | |
| 452 | Deva Educational Software | | United Kingdom | |
| 453 | Devonshire House | | United Kingdom | |
| 454 | DGF Software | | United Kingdom | |
| 455 | Dialog Software | | United Kingdom | |
| 456 | Diamond Games | | United Kingdom | |
| 457 | Digisoft | | United Kingdom | |
| 458 | Digital Fantasia | | United Kingdom | |
| 459 | Digital Image | | United Kingdom | |
| 460 | Digital Magic Software | | United Kingdom | |
| 461 | Digital Reality | | United Kingdom | |
| 462 | Digital Star | | United Kingdom | |
| 463 | DigiTape | | United Kingdom | |
| 464 | Digitronics | | United Kingdom | |
| 465 | Dimasoft | | United Kingdom | |
| 466 | Dimensions 41 | | United Kingdom | |
| 467 | Dinky Productions | | United Kingdom | |
| 468 | Dinosoft | | United Kingdom | |
| 469 | Dipak Software | | United Kingdom | |
| 470 | Discount Software | | United Kingdom | |
| 471 | Discus Software | | United Kingdom | |
| 472 | Divide by Zero | | United Kingdom | |
| 473 | Dixie Software | | United Kingdom | |
| 474 | DJH Software | | United Kingdom | |
| 475 | DJL Software Ltd | | United Kingdom | |
| 476 | DJP Software | | United Kingdom | |
| 477 | DK'Tronics Ltd | | United Kingdom | |
| 478 | DLT Games | | United Kingdom | |
| 479 | Docimodus | | United Kingdom | |
| 480 | Dollarsoft | | United Kingdom | |
| 481 | Domara Computer Consultants | | United Kingdom | |
| 482 | Dominic Wood | | United Kingdom | |
| 483 | Donisoft | | United Kingdom | |
| 484 | Dorcas Software | | United Kingdom | |
| 485 | Doreen Bardon | | United Kingdom | |
| 486 | Double H Software | | United Kingdom | |
| 487 | Double-Jay Software | | United Kingdom | |
| 488 | Double-Pig-Soft | | United Kingdom | |
| 489 | DPM Software | | United Kingdom | |
| 490 | Dr. Gonza Software | | United Kingdom | |
| 491 | Draysoft | | United Kingdom | |
| 492 | Dream Software Ltd | | United Kingdom | |
| 493 | Dream World Adventures | | United Kingdom | |
| 494 | DTS Software | | United Kingdom | |
| 495 | Dual Dimension Software | | United Kingdom | |
| 496 | Duncan Bowen School | | United Kingdom | |
| 497 | Duncan Games | | United Kingdom | |
| 498 | Dunitz Software | | United Kingdom | |
| 499 | Durome Software | | United Kingdom | |
| 500 | Dymond Software | | United Kingdom | |
| 501 | Dynamic Software | | United Kingdom | |
| 502 | Dynamite Designs | | United Kingdom | |
| 503 | E&MT Services | | United Kingdom | |
| 504 | Eaglesoft | | United Kingdom | |
| 505 | Earlgate Computers | | United Kingdom | |
| 506 | Early Learning Opportunities | | United Kingdom | |
| 507 | East Midlands Software | | United Kingdom | |
| 508 | Eastmead Computer Systems | | United Kingdom | |
| 509 | Eastway Systems | | United Kingdom | |
| 510 | Easyuse Software | | United Kingdom | |
| 511 | Ebury Software | | United Kingdom | |
| 512 | Echosoft | | United Kingdom | |
| 513 | Eclipse Software | | United Kingdom | |
| 514 | Ed.SOFT Educational Software | | United Kingdom | |
| 515 | EDOS | | United Kingdom | |
| 516 | Educat Software | | United Kingdom | |
| 517 | Educational Software | | United Kingdom | |
| 518 | Educational Software for Microcomputers | | United Kingdom | |
| 519 | EEC Ltd | | United Kingdom | |
| 520 | EI Systems | | United Kingdom | |
| 521 | Eidersoft | | United Kingdom | |
| 522 | Eidos PLC | | United Kingdom | |
| 523 | Eigen Software | | United Kingdom | |
| 524 | Einstein Software | | United Kingdom | |
| 525 | EJ Software | | United Kingdom | |
| 526 | Eldritch the Cat | | United Kingdom | |
| 527 | Electra Software | | United Kingdom | |
| 528 | Electric Abacus | | United Kingdom | |
| 529 | Electric Pencil Company | | United Kingdom | |
| 530 | Electric Software | | United Kingdom | |
| 531 | Electric Storm Productions | | United Kingdom | |
| 532 | Electro Music Research | | United Kingdom | |
| 533 | Electronic Pencil Company Ltd | | United Kingdom | |
| 534 | Electronic Zoo | | United Kingdom | |
| 535 | Elektra Personal Computer Software | | United Kingdom | |
| 536 | Elephant Software | | United Kingdom | |
| 537 | Elephant Software [2] | | United Kingdom | |
| 538 | Elite Systems Ltd | | United Kingdom | |
| 539 | Ellis Horwood Ltd | | United Kingdom | |
| 540 | Elm Computers | | United Kingdom | |
| 541 | Elsewhere Publishing | | United Kingdom | |
| 542 | Elven Adventurers | | United Kingdom | |
| 543 | EMAP Business & Computer Publications Ltd | | United Kingdom | |
| 544 | Emily Software | | United Kingdom | |
| 545 | Emsoft | | United Kingdom | |
| 546 | En Zed Soft | | United Kingdom | |
| 547 | Encief Routines | | United Kingdom | |
| 548 | Englefield Software | | United Kingdom | |
| 549 | English Software | | United Kingdom | |
| 550 | Enigma Incorporated Software | | United Kingdom | |
| 551 | Enigma Software Developments | | United Kingdom | |
| 552 | Enigma Variations Ltd | | United Kingdom | |
| 553 | Enterprise Software | | United Kingdom | |
| 554 | Entropy | | United Kingdom | |
| 555 | Epsilon Software | | United Kingdom | |
| 556 | ERC Computer Services | | United Kingdom | |
| 557 | Eric Bean Adventures | | United Kingdom | |
| 558 | Eric Deeson | | United Kingdom | |
| 559 | Erlanger Engineering | | United Kingdom | |
| 560 | ESDA Software | | United Kingdom | |
| 561 | Esem Software | | United Kingdom | |
| 562 | ESP | | United Kingdom | |
| 563 | ESP Software | | United Kingdom | |
| 564 | Essential Consultants Ltd | | United Kingdom | |
| 565 | Essex Logic Services | | United Kingdom | |
| 566 | Essex Software | | United Kingdom | |
| 567 | Esteem More Than Equal | | United Kingdom | |
| 568 | Estuary Software Products | | United Kingdom | |
| 569 | ET Computer Software | | United Kingdom | |
| 570 | ETST Software | | United Kingdom | |
| 571 | Euro-Byte Ltd | | United Kingdom | |
| 572 | Euroelectronics | | United Kingdom | |
| 573 | Eurogamer | | United Kingdom | |
| 574 | Eurogold | | United Kingdom | |
| 575 | Evesham Micro Centre | | United Kingdom | |
| 576 | Excalibur Software | | United Kingdom | |
| 577 | Excalibur Software | | United Kingdom | |
| 578 | Exclusive Software | | United Kingdom | |
| 579 | Expandor Systems | | United Kingdom | |
| 580 | Experimental Phase Software | | United Kingdom | |
| 581 | Express Marketing Ltd | | United Kingdom | |
| 582 | Express Programmes Company | | United Kingdom | |
| 583 | Express Software | | United Kingdom | |
| 584 | Express Software Ltd | | United Kingdom | |
| 585 | Extacy-3 | | United Kingdom | Bristol |
| 586 | F & F Software | | United Kingdom | |
| 587 | F.E. Electronics | | United Kingdom | |
| 588 | Fair Software | | United Kingdom | |
| 589 | Fairsoft | | United Kingdom | |
| 590 | Falcon Computing | | United Kingdom | |
| 591 | Fantasy Adventure Research | | United Kingdom | |
| 592 | Fantasy Software | | United Kingdom | |
| 593 | Fantasy Software | | United Kingdom | |
| 594 | Fashionsoft | | United Kingdom | |
| 595 | Fast-As-You-Like | | United Kingdom | |
| 596 | Fatcat Software | | United Kingdom | |
| 597 | Fearless Software | | United Kingdom | |
| 598 | Felix Software | | United Kingdom | |
| 599 | Fernleaf Educational Software | | United Kingdom | |
| 600 | Fiction Software | | United Kingdom | |
| 601 | Fidcal | | United Kingdom | |
| 602 | Fighting Fantasy | | United Kingdom | |
| 603 | Filsoft | | United Kingdom | |
| 604 | Finsbury Software | | United Kingdom | |
| 605 | Firecracker Software | | United Kingdom | |
| 606 | Fisher Software | | United Kingdom | |
| 607 | Fisher-Marriott Software | | United Kingdom | |
| 608 | Fisions PLC | | United Kingdom | |
| 609 | Flame Software | | United Kingdom | |
| 610 | Flamingo Systems | | United Kingdom | |
| 611 | Flare Technology Ltd | | United Kingdom | |
| 612 | Flashing Swords Adventures | | United Kingdom | |
| 613 | Flashsoft | | United Kingdom | |
| 614 | Flatduck Records | | United Kingdom | |
| 615 | Flet-Elec Computer Programs | | United Kingdom | |
| 616 | Flexibase Software | | United Kingdom | |
| 617 | Flowchart Ltd | | United Kingdom | |
| 618 | Focus Creative Enterprises Ltd | | United Kingdom | |
| 619 | Fogsoft | | United Kingdom | |
| 620 | Foilkade Ltd | | United Kingdom | |
| 621 | Fontana Publishing | | United Kingdom | |
| 622 | Football Enterprises | | United Kingdom | |
| 623 | Foraits Software | | United Kingdom | |
| 624 | Forest Software | | United Kingdom | |
| 625 | Forward Software | | United Kingdom | |
| 626 | Fossage Software | | United Kingdom | |
| 627 | Foundation Applied Computing | | United Kingdom | |
| 628 | Fountain Drinks | | United Kingdom | |
| 629 | Fountain PD | | United Kingdom | |
| 630 | Foursfield | | United Kingdom | |
| 631 | Fowler Software | | United Kingdom | |
| 632 | Franklin Software | | United Kingdom | |
| 633 | Freaky Fruitbat Software | | United Kingdom | |
| 634 | FRED Publishing | | United Kingdom | |
| 635 | Freddy A. Vachha | | United Kingdom | |
| 636 | Freddy Soft | | United Kingdom | |
| 637 | Fridaysoft | | United Kingdom | |
| 638 | Frogsoft | | United Kingdom | |
| 639 | Front Room Team | | United Kingdom | |
| 640 | Front Runner | | United Kingdom | |
| 641 | FSF Adventures | | United Kingdom | |
| 642 | Fulwood Software | | United Kingdom | |
| 643 | Fun Time Games | | United Kingdom | |
| 644 | Funasoft | | United Kingdom | |
| 645 | Funfair Software | | United Kingdom | |
| 646 | Fusion Retro Books | | United Kingdom | |
| 647 | Future Concepts | | United Kingdom | |
| 648 | Future Publishing | | United Kingdom | |
| 649 | Futuresoft | | United Kingdom | |
| 650 | G K Houghton Software | | United Kingdom | |
| 651 | G. Chapman Ltd | | United Kingdom | |
| 652 | G. Parkes | | United Kingdom | |
| 653 | G.I. Games | | United Kingdom | |
| 654 | G.W. Components UK Ltd | | United Kingdom | |
| 655 | G4HLX | | United Kingdom | |
| 656 | G4IDE Micro Systems | | United Kingdom | |
| 657 | G4RWT Amateur Radio Software | | United Kingdom | |
| 658 | Galaxy Software | | United Kingdom | |
| 659 | Gambrinus Software | | United Kingdom | |
| 660 | Games Computing | | United Kingdom | |
| 661 | Games Machine Ltd | | United Kingdom | |
| 662 | Games of Skill Ltd | | United Kingdom | |
| 663 | Games Workshop | | United Kingdom | |
| 664 | GamesMan Software | | United Kingdom | |
| 665 | Gamma Software | | United Kingdom | |
| 666 | Gang of Five | | United Kingdom | |
| 667 | Gannon Designs | | United Kingdom | |
| 668 | Gap Software | | United Kingdom | |
| 669 | Gardensoft | | United Kingdom | |
| 670 | Gargoyle Games | | United Kingdom | |
| 671 | Garland Computing | | United Kingdom | |
| 672 | Garland Software | | United Kingdom | |
| 673 | Garner Designs Software | | United Kingdom | |
| 674 | Gary Power | | United Kingdom | |
| 675 | GCE Tutoring | | United Kingdom | |
| 676 | GDP Software | | United Kingdom | |
| 677 | Gem Software | | United Kingdom | |
| 678 | Gemini Marketing Ltd | | United Kingdom | |
| 679 | Gemini Software | | United Kingdom | |
| 680 | Generation 4 | | United Kingdom | |
| 681 | Genesis Productions Ltd | | United Kingdom | |
| 682 | Genias | | United Kingdom | |
| 683 | Gensoft | | United Kingdom | |
| 684 | Geoffrey Hans Larsen | | United Kingdom | |
| 685 | Gerrard Gourley | | United Kingdom | |
| 686 | GF Software | | United Kingdom | |
| 687 | Giant Byte | | United Kingdom | |
| 688 | Giga Games | | United Kingdom | |
| 689 | Giga Soft | | United Kingdom | |
| 690 | Giltrole Ltd | | United Kingdom | |
| 691 | GJS Software | | United Kingdom | |
| 692 | GL Software | | United Kingdom | |
| 693 | Glendale Software | | United Kingdom | |
| 694 | Glennik Software | | United Kingdom | |
| 695 | Glensoft | | United Kingdom | |
| 696 | Glentop Publishers Ltd | | United Kingdom | |
| 697 | Global Games | | United Kingdom | |
| 698 | Global Games | | United Kingdom | |
| 699 | Global Software | | United Kingdom | |
| 700 | Gloster Software | | United Kingdom | |
| 701 | GM Software | | United Kingdom | |
| 702 | Go Faster Stripe | | United Kingdom | |
| 703 | Go-It-Alone Software | | United Kingdom | |
| 704 | Gogosoft | | United Kingdom | |
| 705 | Golden Cloud Ltd | | United Kingdom | |
| 706 | Goldstar | | United Kingdom | |
| 707 | Goliath Games | | United Kingdom | |
| 708 | Goltek Publications | | United Kingdom | |
| 709 | Gordon Cooper | | United Kingdom | |
| 710 | GP Software | | United Kingdom | |
| 711 | Graeme Coleman | | United Kingdom | |
| 712 | Grafix Wizards | | United Kingdom | |
| 713 | Granada Publishing | | United Kingdom | |
| 714 | Grand Slam | | United Kingdom | |
| 715 | Graphics Software | | United Kingdom | |
| 716 | Graphtext 128 | | United Kingdom | |
| 717 | Green Bank Software | | United Kingdom | |
| 718 | Green Fish Software Enterprise | | United Kingdom | |
| 719 | Grimoire Adventures | | United Kingdom | |
| 720 | Grok Developments Ltd | | United Kingdom | |
| 721 | GSN Educational Software | | United Kingdom | |
| 722 | GT Software | | United Kingdom | |
| 723 | GTI Software | | United Kingdom | |
| 724 | H & D Services | | United Kingdom | |
| 725 | H-2-O Ltd | | United Kingdom | |
| 726 | H.B. Software | | United Kingdom | |
| 727 | H.S. Software | | United Kingdom | |
| 728 | Hajasoft | | United Kingdom | |
| 729 | Hall Video Products | | United Kingdom | |
| 730 | Halsoft | | United Kingdom | |
| 731 | Hanna Software | | United Kingdom | |
| 732 | Harbour Soft | | United Kingdom | |
| 733 | HARD Software | | United Kingdom | |
| 734 | Hardcore-soft | | United Kingdom | |
| 735 | Haresoft Ltd | | United Kingdom | |
| 736 | Harlequin Software | | United Kingdom | |
| 737 | Harold Gale Associates Ltd | | United Kingdom | |
| 738 | Harris Software | | United Kingdom | |
| 739 | Hartland Software | | United Kingdom | |
| 740 | Hartsoft | | United Kingdom | |
| 741 | Harvey Lodder | | United Kingdom | |
| 742 | Havensoft | | United Kingdom | |
| 743 | Heath Computing | | United Kingdom | |
| 744 | Heinemann | | United Kingdom | |
| 745 | Hektic Software | | United Kingdom | |
| 746 | Herron Software | | United Kingdom | |
| 747 | Hessel Software | | United Kingdom | |
| 748 | Hexadecimal Press | | United Kingdom | |
| 749 | HGF Software | | United Kingdom | |
| 750 | Hi-Tech Microsoft | | United Kingdom | |
| 751 | Hi-Tech Software | | United Kingdom | |
| 752 | Hi-Yin Music | | United Kingdom | |
| 753 | High Fashion | | United Kingdom | |
| 754 | High Voltage | | United Kingdom | |
| 755 | Highlight Software | | United Kingdom | |
| 756 | Hilderbay Ltd | | United Kingdom | |
| 757 | Hill MacGibbon | | United Kingdom | |
| 758 | Hillrise Software | | United Kingdom | |
| 759 | Hillview School | | United Kingdom | |
| 760 | Hilton Computer Services Ltd | | United Kingdom | |
| 761 | Hindleppe Software | | United Kingdom | |
| 762 | Hippo Enterprises | | United Kingdom | |
| 763 | Hippo Software | | United Kingdom | |
| 764 | Hitech Games Plus | | United Kingdom | |
| 765 | HL Software | | United Kingdom | |
| 766 | HO Programs | | United Kingdom | |
| 767 | Hobby Software | | United Kingdom | |
| 768 | Hodder & Stoughton Ltd | | United Kingdom | |
| 769 | Holburn Software | | United Kingdom | |
| 770 | Holiday Brothers Ltd | | United Kingdom | |
| 771 | Holly Products | | United Kingdom | |
| 772 | Holmes McDougall Ltd | | United Kingdom | |
| 773 | Home Micro Software | | United Kingdom | |
| 774 | Homesoft | | United Kingdom | |
| 775 | Homestudy Ltd | | United Kingdom | |
| 776 | Honeyfold Software Ltd | | United Kingdom | |
| 777 | HoopSnake Design | | United Kingdom | |
| 778 | Hornby Software | | United Kingdom | |
| 779 | Hot-Shot Entertainments Ltd | | United Kingdom | |
| 780 | Howard Marketing | | United Kingdom | |
| 781 | Howard Partnership | | United Kingdom | |
| 782 | Howard Software | | United Kingdom | |
| 783 | Human Waste Company | | United Kingdom | |
| 784 | Humphrey Software | | United Kingdom | |
| 785 | Hypa Hypa Designs | | United Kingdom | |
| 786 | Hyperion Software | | United Kingdom | |
| 787 | I.E.C. Software | | United Kingdom | |
| 788 | I.W.S. | | United Kingdom | |
| 789 | Ian Carroll | | United Kingdom | |
| 790 | IC Software | | United Kingdom | |
| 791 | Ice Cool Coders | | United Kingdom | |
| 792 | ICE Software | | United Kingdom | |
| 793 | ICL | | United Kingdom | |
| 794 | Icon Design Ltd | | United Kingdom | |
| 795 | Icon Designs | | United Kingdom | |
| 796 | Icon Software Ltd | | United Kingdom | |
| 797 | IDL | | United Kingdom | |
| 798 | IE Applications Ltd | | United Kingdom | |
| 799 | IG Programs | | United Kingdom | |
| 800 | Igneous 1 Software | | United Kingdom | |
| 801 | IJK Software Ltd | | United Kingdom | |
| 802 | Illusion Software Ltd | | United Kingdom | |
| 803 | Image Design | | United Kingdom | |
| 804 | Image Software Ltd | | United Kingdom | |
| 805 | Image Systems | | United Kingdom | |
| 806 | Images Software Ltd | | United Kingdom | |
| 807 | Imagesoft | | United Kingdom | |
| 808 | Impact Software | | United Kingdom | |
| 809 | Impact Software | | United Kingdom | |
| 810 | Impact Software | | United Kingdom | |
| 811 | Impact Software | | United Kingdom | |
| 812 | Imperial Software | | United Kingdom | |
| 813 | Impulse Software | | United Kingdom | |
| 814 | IMS Software | | United Kingdom | |
| 815 | Incantation | | United Kingdom | |
| 816 | Incognito Games | | United Kingdom | |
| 817 | Incognito Software | | United Kingdom | |
| 818 | Independent Software | | United Kingdom | |
| 819 | INDUG | | United Kingdom | |
| 820 | Infected Software | | United Kingdom | |
| 821 | Infernal Designs | | United Kingdom | |
| 822 | Infinite Imaginations | | United Kingdom | |
| 823 | Infinite Software | | United Kingdom | |
| 824 | Inform Software | | United Kingdom | |
| 825 | Innosoft | | United Kingdom | |
| 826 | Insight | | United Kingdom | |
| 827 | Insight Software | | United Kingdom | |
| 828 | Instant Products | | United Kingdom | |
| 829 | Integer Research | | United Kingdom | |
| 830 | Intelligent Design Ltd | | United Kingdom | |
| 831 | Intelligent Software Ltd | | United Kingdom | |
| 832 | Interactive Technology | | United Kingdom | |
| 833 | Interceptor Group | | United Kingdom | |
| 834 | Interface Publications Ltd | | United Kingdom | |
| 835 | Intergalactic Robots Ltd | | United Kingdom | |
| 836 | Intersoft Software | | United Kingdom | |
| 837 | Interstella Software | | United Kingdom | |
| 838 | Intraset Ltd | | United Kingdom | |
| 839 | Io Software | | United Kingdom | |
| 840 | Ionian Games | | United Kingdom | |
| 841 | IPC Magazines Ltd | | United Kingdom | |
| 842 | IQ Services | | United Kingdom | |
| 843 | ISC Ltd | | United Kingdom | |
| 844 | Isolated House | | United Kingdom | |
| 845 | Ivan Berg Software Ltd | | United Kingdom | |
| 846 | Ivysoft | | United Kingdom | |
| 847 | IZ Software | | United Kingdom | |
| 848 | J K Gosden Software | | United Kingdom | |
| 849 | J&L Randall Ltd | | United Kingdom | |
| 850 | J. Aron Software Ltd | | United Kingdom | |
| 851 | J. Timms | | United Kingdom | |
| 852 | J.C. Smith | | United Kingdom | |
| 853 | J.K. Greye Enterprises Ltd | | United Kingdom | |
| 854 | J.K. Greye Software Ltd | | United Kingdom | |
| 855 | J.W.V. Software | | United Kingdom | |
| 856 | JA Software | | United Kingdom | |
| 857 | Jabberwocky Software | | United Kingdom | |
| 858 | Jacqueline Wright | | United Kingdom | |
| 859 | Jade Software | | United Kingdom | |
| 860 | James Software Ltd | | United Kingdom | |
| 861 | Jape Software | | United Kingdom | |
| 862 | JAR Electronics | | United Kingdom | |
| 863 | Jason Board | | United Kingdom | |
| 864 | Javlin Software | | United Kingdom | |
| 865 | Jaxsoft Software | | United Kingdom | |
| 866 | Jaysoft | | United Kingdom | |
| 867 | JCS Software | | United Kingdom | |
| 868 | JCS ZX Software | | United Kingdom | |
| 869 | Jega Software | | United Kingdom | |
| 870 | Jemel Soft | | United Kingdom | |
| 871 | JEP Electronics Ltd | | United Kingdom | |
| 872 | Jer White | | United Kingdom | |
| 873 | Jester Interactive | | United Kingdom | |
| 874 | Jimjams Software | | United Kingdom | |
| 875 | Jive Software | | United Kingdom | |
| 876 | JN Software | | United Kingdom | |
| 877 | Jodan Software | | United Kingdom | |
| 878 | John Henry Enterprises | | United Kingdom | |
| 879 | John Lydon | | United Kingdom | |
| 880 | John Lyons Computer Software | | United Kingdom | |
| 881 | John Prince Software | | United Kingdom | |
| 882 | Jolyon Vincent Myers | | United Kingdom | |
| 883 | Jon R. Lemmon | | United Kingdom | |
| 884 | Jov & Zon Ltd | | United Kingdom | |
| 885 | Joyce Hakansson Associates Inc | | United Kingdom | |
| 886 | JPJ Software | | United Kingdom | |
| 887 | JRS Software Ltd | | United Kingdom | |
| 888 | JT Software | | United Kingdom | |
| 889 | Judesoft | | United Kingdom | |
| 890 | Jupiter Software | | United Kingdom | |
| 891 | K'Soft Ltd | | United Kingdom | |
| 892 | K-Soft | | United Kingdom | |
| 893 | K.M. Cooksey | | United Kingdom | |
| 894 | Kanebo Software | | United Kingdom | |
| 895 | Kaos | | United Kingdom | |
| 896 | Kate and Sam Programs | | United Kingdom | |
| 897 | Kayde Software Ltd | | United Kingdom | |
| 898 | KD Software | | United Kingdom | |
| 899 | Keebolg | | United Kingdom | |
| 900 | Keep Publishing Ltd | | United Kingdom | |
| 901 | Kelsoft | | United Kingdom | |
| 902 | Kemp Ltd | | United Kingdom | |
| 903 | Kempston Micro Electronics Ltd | | United Kingdom | |
| 904 | Kemsoft | | United Kingdom | |
| 905 | Ken Wright | | United Kingdom | |
| 906 | Kerian UK Ltd | | United Kingdom | |
| 907 | Key Software | | United Kingdom | |
| 908 | Key Software | | United Kingdom | |
| 909 | Keysoft | | United Kingdom | |
| 910 | Keyword Software | | United Kingdom | |
| 911 | KH Software | | United Kingdom | |
| 912 | Kiddisoft | | United Kingdom | |
| 913 | Kidsplay | | United Kingdom | |
| 914 | Kilsoft | | United Kingdom | |
| 915 | Kindersoft UK Ltd | | United Kingdom | |
| 916 | Kinetic Designs | | United Kingdom | |
| 917 | King Software | | United Kingdom | |
| 918 | KM Systems | | United Kingdom | |
| 919 | Knightsoft | | United Kingdom | |
| 920 | Kobrahsoft | | United Kingdom | |
| 921 | Kompsoft | | United Kingdom | |
| 922 | Konix Computer Products | | United Kingdom | |
| 923 | Konkrete Software | | United Kingdom | |
| 924 | Kosmos Software Ltd | | United Kingdom | |
| 925 | KPH Software | | United Kingdom | |
| 926 | Krausco Software | | United Kingdom | |
| 927 | Kricon Ltd | | United Kingdom | |
| 928 | Krisalis Software Ltd | | United Kingdom | |
| 929 | Kuma Computers Ltd | | United Kingdom | |
| 930 | KW Computing | | United Kingdom | |
| 931 | KW Software | | United Kingdom | |
| 932 | Kwerty Software | | United Kingdom | |
| 933 | L'Ensouleiado Software | | United Kingdom | |
| 934 | L.A. Software | | United Kingdom | |
| 935 | L.T. Software | | United Kingdom | |
| 936 | L.W. Tomlin | | United Kingdom | |
| 937 | Lambourne Games | | United Kingdom | |
| 938 | Lancashire Micros | | United Kingdom | |
| 939 | Lancing Technical Services Ltd | | United Kingdom | |
| 940 | Lasasoft Ltd | | United Kingdom | |
| 941 | Lasersoft | | United Kingdom | |
| 942 | Lasersound Ltd | | United Kingdom | |
| 943 | Last Chance Conversions | | United Kingdom | |
| 944 | Le Lu/Lu's | | United Kingdom | |
| 945 | Learning and Training Systems | | United Kingdom | |
| 946 | Ledgen Business Software | | United Kingdom | |
| 947 | Legend | | United Kingdom | |
| 948 | Leisure Electronic Designs Ltd | | United Kingdom | |
| 949 | Leroysoft | | United Kingdom | |
| 950 | Leslie Wilson | | United Kingdom | |
| 951 | Lez Peranto Ltd | | United Kingdom | |
| 952 | Life on Mars | | United Kingdom | |
| 953 | Lightning Software | | United Kingdom | |
| 954 | Limelight Software | | United Kingdom | |
| 955 | Linda Wright | | United Kingdom | |
| 956 | Link Enterprises | | United Kingdom | |
| 957 | Lion Software | | United Kingdom | |
| 958 | Little Shop of Pixels | | United Kingdom | |
| 959 | Little Softie Ltd | | United Kingdom | |
| 960 | LiveWire Software | | United Kingdom | |
| 961 | LJK Computing | | United Kingdom | |
| 962 | Llainlan Software | | United Kingdom | |
| 963 | Llamasoft | | United Kingdom | |
| 964 | Loach Software | | United Kingdom | |
| 965 | Lobos Software | | United Kingdom | |
| 966 | Locator | | United Kingdom | |
| 967 | LocoSoft | | United Kingdom | |
| 968 | LOG | | United Kingdom | |
| 969 | Logic 3 | | United Kingdom | |
| 970 | Logic Programming Associates Ltd | | United Kingdom | |
| 971 | Logic Sales | | United Kingdom | |
| 972 | Logic Systems | | United Kingdom | |
| 973 | Logic-Art-Ware | | United Kingdom | |
| 974 | London Circus Cats | | United Kingdom | |
| 975 | Loophole Software | | United Kingdom | |
| 976 | Lorenz Twins | | United Kingdom | |
| 977 | Lotus-Soft | | United Kingdom | |
| 978 | Lucky Red Fish | | United Kingdom | |
| 979 | Lunar Software | | United Kingdom | |
| 980 | Lunn Accounting Services | | United Kingdom | |
| 981 | Lutterworth Software | | United Kingdom | |
| 982 | Lyndenhurst Ltd | | United Kingdom | |
| 983 | Lynsoft | | United Kingdom | |
| 984 | Lynway Computing | | United Kingdom | |
| 985 | Lyversoft | | United Kingdom | |
| 986 | M&H Software | | United Kingdom | |
| 987 | M&J Regan Software | | United Kingdom | |
| 988 | M&J Software | | United Kingdom | |
| 989 | M.42 Software | | United Kingdom | |
| 990 | M.A. Bourne | | United Kingdom | |
| 991 | M.A. Lovell | | United Kingdom | |
| 992 | M.A. Lovell Software | | United Kingdom | |
| 993 | M.B. Software | | United Kingdom | |
| 994 | M.I. Turner and Son | | United Kingdom | |
| 995 | M.K. Circuits | | United Kingdom | |
| 996 | Macbride | | United Kingdom | |
| 997 | Macdonald & Co (Publishers) Ltd | | United Kingdom | |
| 998 | Machinecraft Ltd | | United Kingdom | |
| 999 | Macmillan Education Ltd | | United Kingdom | |
| 1000 | Macronics Systems Ltd | | United Kingdom | |
| 1001 | Macsen Software | | United Kingdom | |
| 1002 | Macsoft | | United Kingdom | |
| 1003 | Maelstrom Games Ltd | | United Kingdom | |
| 1004 | Magenta Electronics Ltd | | United Kingdom | |
| 1005 | Magic Post Box | | United Kingdom | |
| 1006 | Magic Realm Games | | United Kingdom | |
| 1007 | Magic Software | | United Kingdom | |
| 1008 | Magicsoft | | United Kingdom | |
| 1009 | Magination Software | | United Kingdom | |
| 1010 | Magnetic Fields | | United Kingdom | |
| 1011 | Magnetic Scrolls Ltd | | United Kingdom | |
| 1012 | Magnificent 7 Software | | United Kingdom | |
| 1013 | Magnum Computing | | United Kingdom | |
| 1014 | Magnum Electronics | | United Kingdom | |
| 1015 | Major Developments | | United Kingdom | |
| 1016 | MAK Computer Graphics | | United Kingdom | |
| 1017 | Malan Associates | | United Kingdom | |
| 1018 | Maldon Archaeological Group | | United Kingdom | |
| 1019 | Malva Ltd | | United Kingdom | |
| 1020 | Mandarin Adventures | | United Kingdom | |
| 1021 | Manor Software | | United Kingdom | |
| 1022 | Mansfield Computers & Electronics | | United Kingdom | |
| 1023 | Mark Time Ltd | | United Kingdom | |
| 1024 | Marks & Spencer | | United Kingdom | |
| 1025 | Marksman Software | | United Kingdom | |
| 1026 | Marmalade Software | | United Kingdom | |
| 1027 | Marolli-Soft | | United Kingdom | |
| 1028 | Martin Dunitz Ltd | | United Kingdom | |
| 1029 | Martinsoft | | United Kingdom | |
| 1030 | Matand Software | | United Kingdom | |
| 1031 | Matrix Software | | United Kingdom | |
| 1032 | Maxwell Technology Ltd | | United Kingdom | |
| 1033 | Mayday Software | | United Kingdom | |
| 1034 | Mayfield Products | | United Kingdom | |
| 1035 | McGraw-Hill Book Company UK Ltd | | United Kingdom | |
| 1036 | McLoughlin & Co | | United Kingdom | |
| 1037 | MCN Software | | United Kingdom | |
| 1038 | McNeil Software | | United Kingdom | |
| 1039 | MCP Co | | United Kingdom | |
| 1040 | MDA Modon Associates Ltd | | United Kingdom | |
| 1041 | MDR | | United Kingdom | |
| 1042 | Meadowmarsh Software | | United Kingdom | |
| 1043 | Meastrosoft | | United Kingdom | |
| 1044 | Mediandroid | | United Kingdom | |
| 1045 | Medsoft | | United Kingdom | |
| 1046 | Mega-Soft | | United Kingdom | |
| 1047 | Megadodo Software | | United Kingdom | |
| 1048 | Megapoints Corner | | United Kingdom | |
| 1049 | Megasoft | | United Kingdom | |
| 1050 | Memoco Electron | | United Kingdom | |
| 1051 | Mental Images | | United Kingdom | |
| 1052 | Mentor Software | | United Kingdom | |
| 1053 | Meow Micros | | United Kingdom | |
| 1054 | Mercurian Pulp Products | | United Kingdom | |
| 1055 | Mercury Software | | United Kingdom | |
| 1056 | Merlin Software | | United Kingdom | |
| 1057 | Mesoft | | United Kingdom | |
| 1058 | MFM Data Services Ltd | | United Kingdom | |
| 1059 | MI-Soft | | United Kingdom | |
| 1060 | Michael Slatford Software | | United Kingdom | |
| 1061 | Micro Accessories | | United Kingdom | |
| 1062 | Micro Gold | | United Kingdom | |
| 1063 | Micro Investor Software | | United Kingdom | |
| 1064 | Micro Kid | | United Kingdom | |
| 1065 | Micro Master | | United Kingdom | |
| 1066 | Micro Power Ltd | | United Kingdom | |
| 1067 | Micro Press | | United Kingdom | |
| 1068 | Micro Zeighty | | United Kingdom | |
| 1069 | Micro-De-Bug Consultancy | | United Kingdom | |
| 1070 | Micro-Kraft | | United Kingdom | |
| 1071 | Micro-Mart Software | | United Kingdom | |
| 1072 | Microbyte | | United Kingdom | |
| 1073 | Microdeal | | United Kingdom | |
| 1074 | Microdot Software | | United Kingdom | |
| 1075 | Microfayre | | United Kingdom | |
| 1076 | Microgame Simulations | | United Kingdom | |
| 1077 | Microholics Anonymous | | United Kingdom | |
| 1078 | MiCROL | | United Kingdom | |
| 1079 | Micromania | | United Kingdom | |
| 1080 | Micromega | | United Kingdom | |
| 1081 | Micronet 800 Telesoftware | | United Kingdom | |
| 1082 | Microtax Ltd | | United Kingdom | |
| 1083 | Microtech Systems | | United Kingdom | |
| 1084 | Microtrust Software | | United Kingdom | |
| 1085 | Microworkshops Ltd | | United Kingdom | |
| 1086 | Midisoft | | United Kingdom | |
| 1087 | Midnight Brew | | United Kingdom | |
| 1088 | Mike Hampson | | United Kingdom | |
| 1089 | Mike Marchant Graphics | | United Kingdom | |
| 1090 | Mikro-Gen Ltd | | United Kingdom | |
| 1091 | Miles Gordon Technology | | United Kingdom | |
| 1092 | Millenium Software | | United Kingdom | |
| 1093 | Millside Software | | United Kingdom | |
| 1094 | Millsoft | | United Kingdom | |
| 1095 | Minatron Computing | | United Kingdom | |
| 1096 | Mind's Eye Software | | United Kingdom | |
| 1097 | Mindscape International Inc | | United Kingdom | |
| 1098 | Minicom Soft | | United Kingdom | |
| 1099 | Minimal Systems | | United Kingdom | |
| 1100 | Minimicro Software | | United Kingdom | |
| 1101 | Mira Software | | United Kingdom | |
| 1102 | Miracle Games | | United Kingdom | |
| 1103 | Miracle Technology UK Ltd | | United Kingdom | |
| 1104 | Mirage Software | | United Kingdom | |
| 1105 | Miratec Systems | | United Kingdom | |
| 1106 | Mirrorsoft Ltd | | United Kingdom | |
| 1107 | Misoft | | United Kingdom | |
| 1108 | Mission Software | | United Kingdom | |
| 1109 | Mistral Software | | United Kingdom | |
| 1110 | Mitchell Software Ltd | | United Kingdom | |
| 1111 | Mizar Computing | | United Kingdom | |
| 1112 | Mme Sosostris Astro Computing | | United Kingdom | |
| 1113 | MNEMOtech | | United Kingdom | |
| 1114 | MNL Software | | United Kingdom | |
| 1115 | Modem House | | United Kingdom | |
| 1116 | Modular Resources Ltd | | United Kingdom | |
| 1117 | Mogul Communications Ltd | | United Kingdom | |
| 1118 | Mole Software | | United Kingdom | |
| 1119 | Monflair Ltd | | United Kingdom | |
| 1120 | Monster's Legs Productions | | United Kingdom | |
| 1121 | Monsterbytes | | United Kingdom | |
| 1122 | Monument Microgames | | United Kingdom | |
| 1123 | Moonchild Software | | United Kingdom | |
| 1124 | Moonstone | | United Kingdom | |
| 1125 | Moonstone Computing | | United Kingdom | |
| 1126 | Morgan Whale Associates | | United Kingdom | |
| 1127 | Morley Davies Associates | | United Kingdom | |
| 1128 | Morpheus Games | | United Kingdom | |
| 1129 | Morsoft | | United Kingdom | |
| 1130 | Mosaic Publishing Ltd | | United Kingdom | |
| 1131 | Motivation Software | | United Kingdom | |
| 1132 | MRP-SBS Software | | United Kingdom | |
| 1133 | Msoft | | United Kingdom | |
| 1134 | MST Consultants | | United Kingdom | |
| 1135 | Multi-Soft Games | | United Kingdom | |
| 1136 | Multi-Soft Games | | United Kingdom | |
| 1137 | Mungus Software | | United Kingdom | |
| 1138 | Munning Games | | United Kingdom | |
| 1139 | Mushroomsoft | | United Kingdom | |
| 1140 | MW Gamesworld | | United Kingdom | |
| 1141 | MW Software | | United Kingdom | |
| 1142 | Myrmidon Software | | United Kingdom | |
| 1143 | Mystery Software | | United Kingdom | |
| 1144 | Mystic Software | | United Kingdom | |
| 1145 | Mythos Games Ltd | | United Kingdom | |
| 1146 | Mythsoft | | United Kingdom | |
| 1147 | Nab Software | | United Kingdom | |
| 1148 | Naffsoft | | United Kingdom | |
| 1149 | Naigram Software | | United Kingdom | |
| 1150 | National Extension College Trust Ltd | | United Kingdom | |
| 1151 | National Software Library | | United Kingdom | |
| 1152 | Nationsoft | | United Kingdom | |
| 1153 | Natsoft Programs | | United Kingdom | |
| 1154 | NCH Software | | United Kingdom | |
| 1155 | NE-AD Software | | United Kingdom | |
| 1156 | Nebula Designs Software | | United Kingdom | |
| 1157 | Nemesis Productions | | United Kingdom | |
| 1158 | Nemesis Software | | United Kingdom | |
| 1159 | Neptune Computing | | United Kingdom | |
| 1160 | Ness Micro Systems | | United Kingdom | |
| 1161 | Network Adventure Games | | United Kingdom | |
| 1162 | Network Computer Systems Ltd | | United Kingdom | |
| 1163 | Nev Young | | United Kingdom | |
| 1164 | Nevis Records Ltd | | United Kingdom | |
| 1165 | New Breed Developments | | United Kingdom | |
| 1166 | New Concepts Ltd | | United Kingdom | |
| 1167 | New Concepts Software | | United Kingdom | |
| 1168 | New Dimension | | United Kingdom | |
| 1169 | New Hairs Software Ltd | | United Kingdom | |
| 1170 | Newdata Software | | United Kingdom | |
| 1171 | Newman College | | United Kingdom | |
| 1172 | Newsfield Publications Ltd | | United Kingdom | |
| 1173 | Newsoft Products | | United Kingdom | |
| 1174 | Newtech Publishing Ltd | | United Kingdom | |
| 1175 | Nexus Productions Ltd | | United Kingdom | |
| 1176 | Nibble & Byte Computer Services | | United Kingdom | |
| 1177 | Nigel Lea | | United Kingdom | |
| 1178 | Nightingale Software | | United Kingdom | |
| 1179 | Nimrod Software | | United Kingdom | |
| 1180 | Noble House Software | | United Kingdom | |
| 1181 | Nocturnal Software | | United Kingdom | |
| 1182 | Noesis Software | | United Kingdom | |
| 1183 | Nordic Keyboards UK | | United Kingdom | |
| 1184 | Norfolk Educational Psychologist | | United Kingdom | |
| 1185 | Norman Robinson | | United Kingdom | |
| 1186 | Northern Games | | United Kingdom | |
| 1187 | NorthSim Publications | | United Kingdom | |
| 1188 | Norvac Engineering | | United Kingdom | |
| 1189 | Nottinghamshire Constabulary | | United Kingdom | |
| 1190 | Nova Software | | United Kingdom | |
| 1191 | Nova Software | | United Kingdom | |
| 1192 | Novagen Software Ltd | | United Kingdom | |
| 1193 | Ntd Software | | United Kingdom | |
| 1194 | Number One Systems | | United Kingdom | |
| 1195 | Nursoft | | United Kingdom | |
| 1196 | Nutty Software | | United Kingdom | |
| 1197 | O.E. Ltd | | United Kingdom | |
| 1198 | O.I.C. Ltd | | United Kingdom | |
| 1199 | O.Sheen Software | | United Kingdom | |
| 1200 | Oasis Software | | United Kingdom | |
| 1201 | Octopus Software | | United Kingdom | |
| 1202 | Odin Computer Graphics Ltd | | United Kingdom | |
| 1203 | Odyssey Computing | | United Kingdom | |
| 1204 | Old English Software | | United Kingdom | |
| 1205 | Olympic Software | | United Kingdom | |
| 1206 | Omega Games | | United Kingdom | |
| 1207 | Omega Software | | United Kingdom | |
| 1208 | Omega-Soft | | United Kingdom | |
| 1209 | Omni Software | | United Kingdom | |
| 1210 | Omnisoft | | United Kingdom | |
| 1211 | ON6LJ Software | | United Kingdom | |
| 1212 | One Week Productions | | United Kingdom | |
| 1213 | Oni Records | | United Kingdom | |
| 1214 | Online PLC | | United Kingdom | |
| 1215 | Onspec Software | | United Kingdom | |
| 1216 | OpalSoft | | United Kingdom | |
| 1217 | Optical Illusions | | United Kingdom | |
| 1218 | Optimus Software | | United Kingdom | |
| 1219 | Options International | | United Kingdom | |
| 1220 | Orange Enterprizes | | United Kingdom | |
| 1221 | Orange Software | | United Kingdom | |
| 1222 | Orbis Publishing Ltd | | United Kingdom | |
| 1223 | Orbit Data | | United Kingdom | |
| 1224 | Orion Data Ltd | | United Kingdom | |
| 1225 | Orion Software | | United Kingdom | |
| 1226 | Orpheus Ltd | | United Kingdom | |
| 1227 | Orwin Software | | United Kingdom | |
| 1228 | Oscar Systems | | United Kingdom | |
| 1229 | OSSoft | | United Kingdom | |
| 1230 | Outlet | | United Kingdom | |
| 1231 | Oxbridge Technology Ltd | | United Kingdom | |
| 1232 | Oxford Computer Publications Ltd | | United Kingdom | |
| 1233 | Oxford Computer Systems | | United Kingdom | |
| 1234 | Oxford Software Group | | United Kingdom | |
| 1235 | Oxford Technologies | | United Kingdom | |
| 1236 | Oxygen Software | | United Kingdom | |
| 1237 | Oz Software | | United Kingdom | |
| 1238 | P&M Designs | | United Kingdom | |
| 1239 | P&M Software | | United Kingdom | |
| 1240 | P. Boulton Software | | United Kingdom | |
| 1241 | P.A.W. Software | | United Kingdom | |
| 1242 | P.B. Software | | United Kingdom | |
| 1243 | P.C.G. Computer Software | | United Kingdom | |
| 1244 | P.D. Visual Marketing | | United Kingdom | |
| 1245 | P.D.A. Systems | | United Kingdom | |
| 1246 | P.R. Software | | United Kingdom | |
| 1247 | Pace Software | | United Kingdom | |
| 1248 | Pacific Software | | United Kingdom | |
| 1249 | Paddy Coleman | | United Kingdom | |
| 1250 | Pagesoft | | United Kingdom | |
| 1251 | PAL Software | | United Kingdom | |
| 1252 | Palace Video Group | | United Kingdom | |
| 1253 | Palantir Programs | | United Kingdom | |
| 1254 | Panda Software | | United Kingdom | |
| 1255 | Pantheon Software | | United Kingdom | |
| 1256 | Papillon Software | | United Kingdom | |
| 1257 | Paradise Games | | United Kingdom | |
| 1258 | Paradise Software | | United Kingdom | |
| 1259 | Paradise Software | | United Kingdom | |
| 1260 | Paranoid Software | | United Kingdom | |
| 1261 | Parkgate Publishers | | United Kingdom | |
| 1262 | Partyline Ltd | | United Kingdom | |
| 1263 | PASE Group | | United Kingdom | |
| 1264 | Paul Coyle Software | | United Kingdom | |
| 1265 | PB Systems | | United Kingdom | |
| 1266 | PCG Software | | United Kingdom | |
| 1267 | PDQ Software | | United Kingdom | |
| 1268 | Peacock Software | | United Kingdom | |
| 1269 | Peak Mathematics | | United Kingdom | |
| 1270 | Peak Services | | United Kingdom | |
| 1271 | Peaksoft | | United Kingdom | |
| 1272 | Pearl Software | | United Kingdom | |
| 1273 | Pearsons Computing | | United Kingdom | |
| 1274 | PeaSea Software | | United Kingdom | |
| 1275 | Peekay Software | | United Kingdom | |
| 1276 | Peeny Pad Software PLC | | United Kingdom | |
| 1277 | Pegasus Software | | United Kingdom | |
| 1278 | Peker Computers Ltd | | United Kingdom | |
| 1279 | Penna Productions | | United Kingdom | |
| 1280 | Pennsoft | | United Kingdom | |
| 1281 | Pensoft | | United Kingdom | |
| 1282 | Pentagram Software | | United Kingdom | |
| 1283 | Perfection Software | | United Kingdom | |
| 1284 | Perrian Limited | | United Kingdom | |
| 1285 | Persona Software | | United Kingdom | |
| 1286 | Peter Lovett Ltd | | United Kingdom | |
| 1287 | Peters & Zabransky | | United Kingdom | |
| 1288 | Phil Hard Productions | | United Kingdom | |
| 1289 | Phipps Associates | | United Kingdom | |
| 1290 | Phoenix Publishing Associates | | United Kingdom | |
| 1291 | Phoenix Software Ltd | | United Kingdom | |
| 1292 | Phoenix Ware | | United Kingdom | |
| 1293 | Pi Software | | United Kingdom | |
| 1294 | Picosoft | | United Kingdom | |
| 1295 | Picturesque | | United Kingdom | |
| 1296 | Pikadee Software | | United Kingdom | |
| 1297 | Pinehurst Data Studios | | United Kingdom | |
| 1298 | Pinewood Programming | | United Kingdom | |
| 1299 | Pinksoft | | United Kingdom | |
| 1300 | Pirate Computing | | United Kingdom | |
| 1301 | Placet Software | | United Kingdom | |
| 1302 | Platinum Productions | | United Kingdom | |
| 1303 | Playability By Design | | United Kingdom | |
| 1304 | Playground Software | | United Kingdom | |
| 1305 | Plazastar Software | | United Kingdom | |
| 1306 | Plus-One Software | | United Kingdom | |
| 1307 | Polarsoft | | United Kingdom | |
| 1308 | Poppy Programs | | United Kingdom | |
| 1309 | Poppy Soft | | United Kingdom | |
| 1310 | Possum Records | | United Kingdom | |
| 1311 | Postern Ltd | | United Kingdom | |
| 1312 | Powerhouse Software | | United Kingdom | |
| 1313 | PowerSoftware | | United Kingdom | |
| 1314 | Powertran Cybernetics | | United Kingdom | |
| 1315 | PR Software | | United Kingdom | |
| 1316 | Practical Software | | United Kingdom | |
| 1317 | Precision Games | | United Kingdom | |
| 1318 | Precision Software Engineering | | United Kingdom | |
| 1319 | Premier Software | | United Kingdom | |
| 1320 | Prestel Tapezine | | United Kingdom | |
| 1321 | Pricing Building Works | | United Kingdom | |
| 1322 | Pride Utilities | | United Kingdom | |
| 1323 | Prime Software | | United Kingdom | |
| 1324 | PrImer Educational Software | | United Kingdom | |
| 1325 | Print'n'Plotter Productions | | United Kingdom | |
| 1326 | Print'n'Plotter Products Ltd | | United Kingdom | |
| 1327 | Prism Leisure Corporation PLC | | United Kingdom | |
| 1328 | Prisma Software | | United Kingdom | |
| 1329 | Probe Software Ltd | | United Kingdom | |
| 1330 | Procom Software | | United Kingdom | |
| 1331 | Productive Playtime | | United Kingdom | |
| 1332 | Professional Software | | United Kingdom | |
| 1333 | Program Direct | | United Kingdom | |
| 1334 | Program Factory | | United Kingdom | |
| 1335 | Program Power | | United Kingdom | |
| 1336 | Program Techniques | | United Kingdom | |
| 1337 | Progress Software | | United Kingdom | |
| 1338 | Prolog Home Software | | United Kingdom | |
| 1339 | Prospero Software | | United Kingdom | |
| 1340 | Protek Computing Ltd | | United Kingdom | |
| 1341 | Proteus Developments | | United Kingdom | |
| 1342 | Prune Software | | United Kingdom | |
| 1343 | Pryac Software | | United Kingdom | |
| 1344 | Psion PLC | | United Kingdom | |
| 1345 | Psy-Sci | | United Kingdom | |
| 1346 | Psychaedelic Hedgehog Software | | United Kingdom | |
| 1347 | Psychic Software | | United Kingdom | |
| 1348 | Psychosoft | | United Kingdom | |
| 1349 | Purple Unicorn Software | | United Kingdom | |
| 1350 | PW Marketing | | United Kingdom | |
| 1351 | Pyramid Software | | United Kingdom | |
| 1352 | QED Systems | | United Kingdom | |
| 1353 | Qualsoft | | United Kingdom | |
| 1354 | Qualtech Software | | United Kingdom | |
| 1355 | Quantum Productions | | United Kingdom | |
| 1356 | Quantum Soft | | United Kingdom | |
| 1357 | Quasar Software | | United Kingdom | |
| 1358 | Questsoft | | United Kingdom | |
| 1359 | Quickbeam Software | | United Kingdom | |
| 1360 | Quixel | | United Kingdom | |
| 1361 | R'n'H Microtec | | United Kingdom | |
| 1362 | R&B Marketing Ltd | | United Kingdom | |
| 1363 | R&R Software Ltd | | United Kingdom | |
| 1364 | R. Bingle | | United Kingdom | |
| 1365 | R.C. Laight | | United Kingdom | |
| 1366 | R.C.L. Software | | United Kingdom | |
| 1367 | R.D. Foord Software | | United Kingdom | |
| 1368 | R.E.D. Sunshine | | United Kingdom | |
| 1369 | R.L. Software | | United Kingdom | |
| 1370 | R.R. Software | | United Kingdom | |
| 1371 | Rabbit Software Ltd | | United Kingdom | |
| 1372 | RAD Systems | | United Kingdom | |
| 1373 | Radar Games | | United Kingdom | |
| 1374 | Radical Alternative Software | | United Kingdom | |
| 1375 | Radiohead | | United Kingdom | |
| 1376 | Rai Software | | United Kingdom | |
| 1377 | Rainbird | | United Kingdom | |
| 1378 | Rainbow Arts | | United Kingdom | |
| 1379 | Rainbow Research | | United Kingdom | |
| 1380 | Ram Electronics Ltd | | United Kingdom | |
| 1381 | Ram Scan Design | | United Kingdom | |
| 1382 | Ramp Software | | United Kingdom | |
| 1383 | Ramtop Software | | United Kingdom | |
| 1384 | Ramtrix Software | | United Kingdom | |
| 1385 | Random Access | | United Kingdom | |
| 1386 | Random Records | | United Kingdom | |
| 1387 | Rankshigh Ltd | | United Kingdom | |
| 1388 | Rarari Software | | United Kingdom | |
| 1389 | Rasputin PD Software | | United Kingdom | |
| 1390 | Raven Computer Services | | United Kingdom | |
| 1391 | RD Laboratories | | United Kingdom | |
| 1392 | RDS Software | | United Kingdom | |
| 1393 | Real Time Software | | United Kingdom | |
| 1394 | Realtime Games Software Ltd | | United Kingdom | |
| 1395 | Rebellion Developments Ltd | | United Kingdom | |
| 1396 | Red Rat Software | | United Kingdom | |
| 1397 | Red Shift Ltd | | United Kingdom | |
| 1398 | Red-Baron Software | | United Kingdom | |
| 1399 | Redwhite Software | | United Kingdom | |
| 1400 | Reelax Games | | United Kingdom | |
| 1401 | Reflective Designs | | United Kingdom | |
| 1402 | Reflex Arc | | United Kingdom | |
| 1403 | Reflex Software Developments | | United Kingdom | |
| 1404 | Reform Software | | United Kingdom | |
| 1405 | Relion Software | | United Kingdom | |
| 1406 | Remote Programming | | United Kingdom | |
| 1407 | Remsoft | | United Kingdom | |
| 1408 | Remsoft Arcade Designs Ltd | | United Kingdom | |
| 1409 | Replay Software | | United Kingdom | |
| 1410 | Reptile Industries Ltd | | United Kingdom | |
| 1411 | Res-Illusions | | United Kingdom | |
| 1412 | Retro Fusion | | United Kingdom | |
| 1413 | Retro Gamer | | United Kingdom | |
| 1414 | RFB Software | | United Kingdom | |
| 1415 | Richard Forsythe Ltd | | United Kingdom | |
| 1416 | Richard Shepherd Software Ltd | | United Kingdom | |
| 1417 | Richardson Institute | | United Kingdom | |
| 1418 | Rikta Software | | United Kingdom | |
| 1419 | River Software | | United Kingdom | |
| 1420 | RM Software | | United Kingdom | |
| 1421 | Roannae Software | | United Kingdom | |
| 1422 | Robinsons Enterprises | | United Kingdom | |
| 1423 | Robtek | | United Kingdom | |
| 1424 | Rockford Products | | United Kingdom | |
| 1425 | Rockford Products | | United Kingdom | |
| 1426 | Rocky Crackingservice | | United Kingdom | |
| 1427 | Romantic Robot UK Ltd | | United Kingdom | |
| 1428 | Rombest | | United Kingdom | |
| 1429 | Rombo Productions | | United Kingdom | |
| 1430 | Romik Software | | United Kingdom | |
| 1431 | Rose Software | | United Kingdom | |
| 1432 | Rosetta Software | | United Kingdom | |
| 1433 | Rosetti Software | | United Kingdom | |
| 1434 | Rotronics | | United Kingdom | |
| 1435 | Roybot | | United Kingdom | |
| 1436 | Roygbiv Software | | United Kingdom | |
| 1437 | RPH Software | | United Kingdom | |
| 1438 | Runesoft | | United Kingdom | |
| 1439 | Runsoft | | United Kingdom | |
| 1440 | Russed Software | | United Kingdom | |
| 1441 | Russell Software | | United Kingdom | |
| 1442 | Rutlemore Games | | United Kingdom | |
| 1443 | S&B Software | | United Kingdom | |
| 1444 | S.D.J. | | United Kingdom | |
| 1445 | Sabresoft | | United Kingdom | |
| 1446 | Sacred Scroll Software | | United Kingdom | |
| 1447 | Saga Software | | United Kingdom | |
| 1448 | Saga Software House | | United Kingdom | |
| 1449 | Saga Systems Ltd | | United Kingdom | |
| 1450 | Sagesoft | | United Kingdom | |
| 1451 | Sagittarian Software Ltd | | United Kingdom | |
| 1452 | Salamander Software | | United Kingdom | |
| 1453 | Salmon Electronics Ltd | | United Kingdom | |
| 1454 | Samurai Software | | United Kingdom | |
| 1455 | Sapphire Software | | United Kingdom | |
| 1456 | Sar Investment Properties | | United Kingdom | |
| 1457 | SARUG Radio Amateur Group | | United Kingdom | |
| 1458 | Satyr Software | | United Kingdom | |
| 1459 | Saxon Computing | | United Kingdom | |
| 1460 | Scarab Systems | | United Kingdom | |
| 1461 | Sceiron | | United Kingdom | |
| 1462 | SciCAL Software Ltd | | United Kingdom | |
| 1463 | Scientific Software | | United Kingdom | |
| 1464 | Scimitar Software | | United Kingdom | |
| 1465 | Scisoft | | United Kingdom | |
| 1466 | Scorby Soft | | United Kingdom | |
| 1467 | Scorpio Gamesworld Ltd | | United Kingdom | |
| 1468 | Scorpion Software | | United Kingdom | |
| 1469 | Scotsoft | | United Kingdom | |
| 1470 | SCR Adventures | | United Kingdom | |
| 1471 | Screen Soft | | United Kingdom | |
| 1472 | Screengraphics | | United Kingdom | |
| 1473 | SD Micro Systems | | United Kingdom | |
| 1474 | SDL Adventures | | United Kingdom | |
| 1475 | Season Soft | | United Kingdom | |
| 1476 | See Bee Software | | United Kingdom | |
| 1477 | Sega | | United Kingdom | |
| 1478 | Selec Software | | United Kingdom | |
| 1479 | Sensoft | | United Kingdom | |
| 1480 | Sentient Software Ltd | | United Kingdom | |
| 1481 | Serin Software | | United Kingdom | |
| 1482 | Serious Applications Software | | United Kingdom | |
| 1483 | Serious Software | | United Kingdom | |
| 1484 | Seven Stars Publishing | | United Kingdom | |
| 1485 | Seymour Systems | | United Kingdom | |
| 1486 | Shadow Software | | United Kingdom | |
| 1487 | Sharma Software | | United Kingdom | |
| 1488 | Shaun Bebbington | | United Kingdom | |
| 1489 | Sheol Software | | United Kingdom | |
| 1490 | Sherston Software | | United Kingdom | |
| 1491 | Sherwood Software | | United Kingdom | |
| 1492 | Shirekilo Ltd | | United Kingdom | |
| 1493 | Shiva Publishing Ltd | | United Kingdom | |
| 1494 | Shodan Software | | United Kingdom | |
| 1495 | Shorten Suite Software | | United Kingdom | |
| 1496 | Shulwater Ltd | | United Kingdom | |
| 1497 | Sidewinder Micro-Systems | | United Kingdom | |
| 1498 | Siel UK Ltd | | United Kingdom | |
| 1499 | Sigma Soft | | United Kingdom | |
| 1500 | Sigma Technical Press | | United Kingdom | |
| 1501 | Sigmasoft | | United Kingdom | |
| 1502 | Silas Software | | United Kingdom | |
| 1503 | Silhouette Software | | United Kingdom | |
| 1504 | Silicon Kid | | United Kingdom | |
| 1505 | Silicon Software | | United Kingdom | |
| 1506 | Silver Fox Communications Ltd | | United Kingdom | |
| 1507 | Silverlind Ltd | | United Kingdom | |
| 1508 | Simba Software | | United Kingdom | |
| 1509 | Simmer Software | | United Kingdom | |
| 1510 | Simmons Electronics | | United Kingdom | |
| 1511 | Simon Allan Software | | United Kingdom | |
| 1512 | Simon Micro-Soft | | United Kingdom | |
| 1513 | Simon Software | | United Kingdom | |
| 1514 | Simply Software | | United Kingdom | |
| 1515 | Sinclair Research Ltd | | United Kingdom | |
| 1516 | Sinclair Research Ltd [PT] | | United Kingdom | |
| 1517 | Sinclair User | | United Kingdom | |
| 1518 | Sirius Software | | United Kingdom | |
| 1519 | Sitting Bull Software | | United Kingdom | |
| 1520 | SJS Software | | United Kingdom | |
| 1521 | skrumpy | | United Kingdom | |
| 1522 | SKS Software | | United Kingdom | |
| 1523 | Skyslip Software | | United Kingdom | |
| 1524 | Skysoft | | United Kingdom | |
| 1525 | Slogger Software | | United Kingdom | |
| 1526 | SLUG | | United Kingdom | |
| 1527 | Small School Software | | United Kingdom | |
| 1528 | Smart Egg Software | | United Kingdom | |
| 1529 | SMB Software | | United Kingdom | |
| 1530 | SMC Goldseal Software | | United Kingdom | |
| 1531 | Smiling Assassin | | United Kingdom | |
| 1532 | Sneesby Software | | United Kingdom | |
| 1533 | Soccer Enterprises | | United Kingdom | |
| 1534 | Sockmonsters Ltd | | United Kingdom | |
| 1535 | Socratic Software | | United Kingdom | |
| 1536 | Soft Centre | | United Kingdom | |
| 1537 | Soft Concern Ltd | | United Kingdom | |
| 1538 | Soft Corn | | United Kingdom | |
| 1539 | Soft Design | | United Kingdom | |
| 1540 | Soft Joe's Software | | United Kingdom | |
| 1541 | Soft Machine | | United Kingdom | |
| 1542 | Soft Option Ltd | | United Kingdom | |
| 1543 | Soft Sell Computer Software | | United Kingdom | |
| 1544 | Softeam | | United Kingdom | |
| 1545 | Softel | | United Kingdom | |
| 1546 | Softlee Systems | | United Kingdom | |
| 1547 | Softlink | | United Kingdom | |
| 1548 | Softricks | | United Kingdom | |
| 1549 | SoftShop International | | United Kingdom | |
| 1550 | Softstone Ltd | | United Kingdom | |
| 1551 | Softstorm Developments | | United Kingdom | |
| 1552 | Software Artists | | United Kingdom | |
| 1553 | Software Communications Ltd | | United Kingdom | |
| 1554 | Software Conversions Ltd | | United Kingdom | |
| 1555 | Software Cottage | | United Kingdom | |
| 1556 | Software Creations | | United Kingdom | Manchester |
| 1557 | Software Farm | | United Kingdom | |
| 1558 | Software for All | | United Kingdom | |
| 1559 | Software Foundation | | United Kingdom | |
| 1560 | Software Images | | United Kingdom | |
| 1561 | Software Liason | | United Kingdom | |
| 1562 | Software Projects Ltd | | United Kingdom | |
| 1563 | Software Publishing Associates | | United Kingdom | |
| 1564 | Software Solutions | | United Kingdom | |
| 1565 | Software Sorcery | | United Kingdom | |
| 1566 | Software Studios | | United Kingdom | |
| 1567 | Softwood Programs | | United Kingdom | |
| 1568 | Softwork | | United Kingdom | |
| 1569 | Softzone Ltd | | United Kingdom | |
| 1570 | Solar Publishing | | United Kingdom | |
| 1571 | Sole Solution Software | | United Kingdom | |
| 1572 | Solid Image Ltd | | United Kingdom | |
| 1573 | Solsoft | | United Kingdom | |
| 1574 | Solway Software | | United Kingdom | |
| 1575 | Sonic Projects | | United Kingdom | |
| 1576 | Sonic Soft | | United Kingdom | |
| 1577 | Sonic Software | | United Kingdom | |
| 1578 | Sospan Soft | | United Kingdom | |
| 1579 | Sound Images | | United Kingdom | |
| 1580 | Source Software Ltd | | United Kingdom | |
| 1581 | South Coast | | United Kingdom | |
| 1582 | Southern Educational Software | | United Kingdom | |
| 1583 | Southern Software | | United Kingdom | |
| 1584 | Southway Software | | United Kingdom | |
| 1585 | Sovereign Software | | United Kingdom | |
| 1586 | SP Enterprises | | United Kingdom | |
| 1587 | SP Software | | United Kingdom | |
| 1588 | Space Age Software | | United Kingdom | |
| 1589 | Spaceman Ltd | | United Kingdom | |
| 1590 | Spartan Software | | United Kingdom | |
| 1591 | Spartans Sports Association | | United Kingdom | |
| 1592 | Speccysoft | | United Kingdom | |
| 1593 | Specialist Programs | | United Kingdom | |
| 1594 | Specsoft | | United Kingdom | |
| 1595 | Spectra Soft | | United Kingdom | |
| 1596 | Spectrasoft | | United Kingdom | |
| 1597 | Spectraxx Tape Magazine | | United Kingdom | |
| 1598 | Spectresoft Ltd | | United Kingdom | |
| 1599 | Spectrum Adventure Exchange Club | | United Kingdom | |
| 1600 | Spectrum Club | | United Kingdom | |
| 1601 | Spectrum Discovery Club | | United Kingdom | |
| 1602 | Spectrum Electronics | | United Kingdom | |
| 1603 | Spectrum Holdings | | United Kingdom | |
| 1604 | Spectrum Microbase | | United Kingdom | |
| 1605 | Spectrum Pricing | | United Kingdom | |
| 1606 | Spectrum Software | | United Kingdom | |
| 1607 | Spectrum Unemployed Users Group | | United Kingdom | |
| 1608 | Spectrum User | | United Kingdom | |
| 1609 | Speculator Software | | United Kingdom | |
| 1610 | Speedwell Software | | United Kingdom | |
| 1611 | Spencer Software | | United Kingdom | |
| 1612 | Sphere Software | | United Kingdom | |
| 1613 | Spheresoft | | United Kingdom | |
| 1614 | Spi-Soft | | United Kingdom | |
| 1615 | Spider Games | | United Kingdom | |
| 1616 | Spidersoft | | United Kingdom | |
| 1617 | Spidersoft | | United Kingdom | |
| 1618 | Spidersoft | | United Kingdom | |
| 1619 | Spindrift Software | | United Kingdom | |
| 1620 | Spiral Software | | United Kingdom | |
| 1621 | Spirit Software | | United Kingdom | |
| 1622 | Spoof Software | | United Kingdom | |
| 1623 | Sport & Racing Software | | United Kingdom | |
| 1624 | Sportsoft | | United Kingdom | |
| 1625 | Sprytes Ltd | | United Kingdom | |
| 1626 | SPS Designs | | United Kingdom | |
| 1627 | Stack Computer Services Ltd | | United Kingdom | |
| 1628 | Star Dreams | | United Kingdom | |
| 1629 | Starbex Systems | | United Kingdom | |
| 1630 | Starcrash Software Systems | | United Kingdom | |
| 1631 | Stardust Software | | United Kingdom | |
| 1632 | Starlite Software | | United Kingdom | |
| 1633 | Stars Software | | United Kingdom | |
| 1634 | Starsoft | | United Kingdom | |
| 1635 | Starsoft Educational | | United Kingdom | |
| 1636 | StarterSoft | | United Kingdom | |
| 1637 | Starzone Software | | United Kingdom | |
| 1638 | State Soft Ltd | | United Kingdom | |
| 1639 | Status Software | | United Kingdom | |
| 1640 | STD Software | | United Kingdom | |
| 1641 | Steam Railway Simulations | | United Kingdom | |
| 1642 | Stell Software | | United Kingdom | |
| 1643 | Stellar Services | | United Kingdom | |
| 1644 | Stellar Software | | United Kingdom | |
| 1645 | Stephen Hartley Software | | United Kingdom | |
| 1646 | Sterling Endeavours | | United Kingdom | |
| 1647 | Steve Forde | | United Kingdom | |
| 1648 | Stocksoft | | United Kingdom | |
| 1649 | Stonechat Productions | | United Kingdom | |
| 1650 | Storm and Tempest | | United Kingdom | |
| 1651 | Storm Software | | United Kingdom | |
| 1652 | Stormbringer Software | | United Kingdom | |
| 1653 | Strange Software | | United Kingdom | |
| 1654 | Stratic Software | | United Kingdom | |
| 1655 | Style Soft | | United Kingdom | |
| 1656 | Subway Software | | United Kingdom | |
| 1657 | Sugar Loaf Software | | United Kingdom | |
| 1658 | Sulis Software Ltd | | United Kingdom | |
| 1659 | Summit Software | | United Kingdom | |
| 1660 | Sunshine Books Ltd | | United Kingdom | |
| 1661 | Supa Nova Ltd | | United Kingdom | |
| 1662 | Supavision LTD | | United Kingdom | |
| 1663 | Superior Software | | United Kingdom | |
| 1664 | Superscape Ltd | | United Kingdom | |
| 1665 | Supersoft | | United Kingdom | |
| 1666 | Supersonic Software Ltd | | United Kingdom | |
| 1667 | Supplement Software | | United Kingdom | |
| 1668 | Sussex Software | | United Kingdom | |
| 1669 | Swannsoft | | United Kingdom | |
| 1670 | Swashbuckling Disappointment | | United Kingdom | |
| 1671 | Sword Software | | United Kingdom | |
| 1672 | Synacroop Software | | United Kingdom | |
| 1673 | Synergy | | United Kingdom | |
| 1674 | Syntax Software | | United Kingdom | |
| 1675 | Syrox | | United Kingdom | |
| 1676 | Syrtis Software | | United Kingdom | |
| 1677 | Sysoft | | United Kingdom | |
| 1678 | System 3 Software Ltd | | United Kingdom | |
| 1679 | System Applied Technology | | United Kingdom | |
| 1680 | System Software | | United Kingdom | |
| 1681 | System-Soft | | United Kingdom | |
| 1682 | T$ Ripoff Institute | | United Kingdom | |
| 1683 | T.S. Software | | United Kingdom | |
| 1684 | TAG Computer Games | | United Kingdom | |
| 1685 | Talent Computer Systems | | United Kingdom | |
| 1686 | Tamsoft | | United Kingdom | |
| 1687 | Tanglewood Software | | United Kingdom | |
| 1688 | Tardis Computing | | United Kingdom | |
| 1689 | Tartan Software | | United Kingdom | |
| 1690 | Taskmaster Software | | United Kingdom | |
| 1691 | Taskset Ltd | | United Kingdom | |
| 1692 | Tasteless Games | | United Kingdom | |
| 1693 | Taurus Computer Design | | United Kingdom | |
| 1694 | Taurus Software | | United Kingdom | |
| 1695 | Tawny Software | | United Kingdom | |
| 1696 | Taylorsoft | | United Kingdom | |
| 1697 | Teachers Pet Software | | United Kingdom | |
| 1698 | Technical Software | | United Kingdom | |
| 1699 | Technium 220 | | United Kingdom | Wokingham |
| 1700 | Technol Computing | | United Kingdom | |
| 1701 | Technology Research Ltd | | United Kingdom | |
| 1702 | Technoshed Software | | United Kingdom | |
| 1703 | Tecmedia | | United Kingdom | |
| 1704 | Tectonic Software | | United Kingdom | |
| 1705 | Tectrics | | United Kingdom | |
| 1706 | Telecomsoft | | United Kingdom | |
| 1707 | Temptation Software Ltd | | United Kingdom | |
| 1708 | Terminal Software | | United Kingdom | |
| 1709 | Texgate Computers Ltd | | United Kingdom | |
| 1710 | Thargon Computations | | United Kingdom | |
| 1711 | The Adventure Club | | United Kingdom | |
| 1712 | The Adventure Workshop | | United Kingdom | |
| 1713 | The Balrog | | United Kingdom | |
| 1714 | The Bog Brothers | | United Kingdom | |
| 1715 | The Boo Software | | United Kingdom | |
| 1716 | The Butronics Company | | United Kingdom | |
| 1717 | The Champ and Jason | | United Kingdom | |
| 1718 | The Chip Shop | | United Kingdom | |
| 1719 | The Code Monkeys | | United Kingdom | |
| 1720 | The Computer Partnership Ltd | | United Kingdom | |
| 1721 | The Design Studio | | United Kingdom | |
| 1722 | The Dreaming Djinn | | United Kingdom | |
| 1723 | The Edge | | United Kingdom | |
| 1724 | The Eighteam | | United Kingdom | |
| 1725 | The Essential Myth | | United Kingdom | |
| 1726 | The Final Solution | | United Kingdom | |
| 1727 | The Firm | | United Kingdom | |
| 1728 | The Future Was 8 Bit | | United Kingdom | |
| 1729 | The Guild | | United Kingdom | |
| 1730 | The Hicks Consortium | | United Kingdom | |
| 1731 | The Home Computer Club | | United Kingdom | |
| 1732 | The Knights | | United Kingdom | |
| 1733 | The Knuckle Girls | | United Kingdom | |
| 1734 | The Kremlin | | United Kingdom | |
| 1735 | The Methodist Church | | United Kingdom | |
| 1736 | The National Museum of Computing | | United Kingdom | |
| 1737 | The Northern Underground | | United Kingdom | |
| 1738 | The Oliver Twins | | United Kingdom | |
| 1739 | The Programming Partnership | | United Kingdom | |
| 1740 | The Radical Tubes | | United Kingdom | |
| 1741 | The RamJam Corporation | | United Kingdom | |
| 1742 | The Scripture Union | | United Kingdom | |
| 1743 | The Shaw Brothers | | United Kingdom | |
| 1744 | The Silent Corner | | United Kingdom | |
| 1745 | The Software Business | | United Kingdom | |
| 1746 | The Stock Exchange | | United Kingdom | |
| 1747 | The Sun Newspaper | | United Kingdom | |
| 1748 | The Tape Gallery | | United Kingdom | |
| 1749 | The Yolpa Brothers | | United Kingdom | Bristol |
| 1750 | The Zen Room | | United Kingdom | |
| 1751 | Thetford Crime Prevention Panel | | United Kingdom | |
| 1752 | Thies Language Software | | United Kingdom | |
| 1753 | Think Tank Educational Software | | United Kingdom | |
| 1754 | Thomas Nelson Ltd | | United Kingdom | |
| 1755 | Thor Computer Software | | United Kingdom | |
| 1756 | Thorn EMI Video Ltd | | United Kingdom | |
| 1757 | Thurnall Electronics Ltd | | United Kingdom | |
| 1758 | Tiger Developments Entertainments Ltd | | United Kingdom | |
| 1759 | Tigress Marketing Ltd | | United Kingdom | |
| 1760 | Tilt Software | | United Kingdom | |
| 1761 | Tim Gilberts | | United Kingdom | |
| 1762 | Tim Pickford-Jones | | United Kingdom | |
| 1763 | Tim Williams | | United Kingdom | |
| 1764 | Time Travels Inc | | United Kingdom | |
| 1765 | Timedata Ltd | | United Kingdom | |
| 1766 | Timescape Software | | United Kingdom | |
| 1767 | Tinbin Garbage Production Ltd | | United Kingdom | |
| 1768 | Titan Programs Ltd | | United Kingdom | |
| 1769 | Tk Computerware | | United Kingdom | |
| 1770 | TNT Software | | United Kingdom | |
| 1771 | TNYsoft | | United Kingdom | |
| 1772 | Toad Educational Computing | | United Kingdom | |
| 1773 | Toastyfox | | United Kingdom | |
| 1774 | Toftwood Software | | United Kingdom | |
| 1775 | Tom D. Frost | | United Kingdom | |
| 1776 | Tom Shipman Supplies | | United Kingdom | |
| 1777 | Tomato Girl Services | | United Kingdom | |
| 1778 | Tomorrow Software | | United Kingdom | |
| 1779 | Tomorrow's Dream Software | | United Kingdom | |
| 1780 | Tony J. Byrne | | United Kingdom | |
| 1781 | Tony Rainbird | | United Kingdom | |
| 1782 | Top Shots | | United Kingdom | |
| 1783 | Top Spec | | United Kingdom | |
| 1784 | TopGraph Software | | United Kingdom | |
| 1785 | Topologika | | United Kingdom | |
| 1786 | Torchraven Ltd | | United Kingdom | |
| 1787 | Torg Software | | United Kingdom | |
| 1788 | Tortured Brain Productions | | United Kingdom | |
| 1789 | Torus | | United Kingdom | |
| 1790 | Total Eclipse | | United Kingdom | |
| 1791 | Touchmaster Ltd | | United Kingdom | |
| 1792 | Tower Software | | United Kingdom | |
| 1793 | Towers Associates | | United Kingdom | |
| 1794 | TPA Computer Services | | United Kingdom | |
| 1795 | Training Research International Ltd | | United Kingdom | |
| 1796 | Travellers | | United Kingdom | |
| 1797 | Tressel Publications | | United Kingdom | |
| 1798 | Tri-Soft | | United Kingdom | |
| 1799 | Triad Developments | | United Kingdom | |
| 1800 | Tribune Software | | United Kingdom | |
| 1801 | Tricoder Cambridge | | United Kingdom | |
| 1802 | Tricuspid Systems | | United Kingdom | |
| 1803 | Trident Software | | United Kingdom | |
| 1804 | Triffid Software Research | | United Kingdom | |
| 1805 | Trinity Software | | United Kingdom | |
| 1806 | Triple R Education | | United Kingdom | |
| 1807 | Triptych Publishing Ltd | | United Kingdom | |
| 1808 | Trius Software | | United Kingdom | |
| 1809 | Troggerz Inc | | United Kingdom | |
| 1810 | Trojan Products | | United Kingdom | |
| 1811 | TSF's Workshop PLC | | United Kingdom | |
| 1812 | Tuckersoft | | United Kingdom | |
| 1813 | Turtle Software | | United Kingdom | |
| 1814 | Tutorial Software | | United Kingdom | |
| 1815 | TV Soft | | United Kingdom | |
| 1816 | Twig Systems Software | | United Kingdom | |
| 1817 | Twilight | | United Kingdom | |
| 1818 | TX Software | | United Kingdom | |
| 1819 | Tynesoft | | United Kingdom | |
| 1820 | U-Microcomputers Ltd | | United Kingdom | |
| 1821 | Ubik Software | | United Kingdom | |
| 1822 | Uburrg Software | | United Kingdom | |
| 1823 | UK Home Computing | | United Kingdom | |
| 1824 | UKScene Allstars | | United Kingdom | |
| 1825 | Ulterior Motives | | United Kingdom | |
| 1826 | Underhill Baptist Church | | United Kingdom | |
| 1827 | Understanding Ltd | | United Kingdom | |
| 1828 | Unicorn Research | | United Kingdom | |
| 1829 | Unicorn Software | | United Kingdom | |
| 1830 | Unit 2 Software | | United Kingdom | |
| 1831 | Universal Computer Research | | United Kingdom | |
| 1832 | University Software | | United Kingdom | |
| 1833 | Uranium Soft | | United Kingdom | |
| 1834 | Usborne Publishing Ltd | | United Kingdom | |
| 1835 | USC Software Team | | United Kingdom | |
| 1836 | Utopia Software | | United Kingdom | |
| 1837 | V&H Computer Services | | United Kingdom | |
| 1838 | Valuesoft | | United Kingdom | |
| 1839 | Vaughan Hallam | | United Kingdom | |
| 1840 | Vectis Software | | United Kingdom | |
| 1841 | Vectorsoft | | United Kingdom | |
| 1842 | Vega Graphics | | United Kingdom | |
| 1843 | Vega Space Systems Ltd | | United Kingdom | |
| 1844 | Vektor Grafix | | United Kingdom | |
| 1845 | Venn Software | | United Kingdom | |
| 1846 | Venny Software | | United Kingdom | |
| 1847 | Venom Games | | United Kingdom | |
| 1848 | Venturesoft | | United Kingdom | |
| 1849 | Victagraphics | | United Kingdom | |
| 1850 | Video Force | | United Kingdom | |
| 1851 | Video Productions | | United Kingdom | |
| 1852 | Video Software Ltd | | United Kingdom | |
| 1853 | Video Vault Ltd | | United Kingdom | |
| 1854 | View Software | | United Kingdom | |
| 1855 | VII Soft Computer Services | | United Kingdom | |
| 1856 | Vincent Vity | | United Kingdom | |
| 1857 | Vinsoft | | United Kingdom | |
| 1858 | Viper Software | | United Kingdom | |
| 1859 | Virgin Books | | United Kingdom | |
| 1860 | Visiogame | | United Kingdom | |
| 1861 | Visions Software | | United Kingdom | |
| 1862 | Visions Software Factory Ltd | | United Kingdom | |
| 1863 | Visual Concepts | | United Kingdom | |
| 1864 | Visual Dimensions | | United Kingdom | |
| 1865 | Visual Impact | | United Kingdom | |
| 1866 | Vivid Image | | United Kingdom | |
| 1867 | VJ Soft | | United Kingdom | |
| 1868 | Vonsoft | | United Kingdom | |
| 1869 | Vortex Software | | United Kingdom | |
| 1870 | Voyager Software | | United Kingdom | |
| 1871 | VT Services | | United Kingdom | |
| 1872 | W.A.S.P. (We Are Spectrum Programmers) | | United Kingdom | |
| 1873 | Walking Circles | | United Kingdom | |
| 1874 | Wallace Software | | United Kingdom | |
| 1875 | Wallsoft | | United Kingdom | |
| 1876 | Walltone Software | | United Kingdom | |
| 1877 | Walrus Computing | | United Kingdom | |
| 1878 | WASP Software | | United Kingdom | |
| 1879 | Watson Software Services Ltd | | United Kingdom | |
| 1880 | Waveney software | | United Kingdom | |
| 1881 | Wayne Easson | | United Kingdom | |
| 1882 | WB Software | | United Kingdom | |
| 1883 | WD Software | | United Kingdom | |
| 1884 | WE M.U.S.I.C. | | United Kingdom | |
| 1885 | Weaversoft | | United Kingdom | |
| 1886 | Websters Software | | United Kingdom | |
| 1887 | Weetabix Ltd | | United Kingdom | |
| 1888 | Wessexsoft | | United Kingdom | |
| 1889 | West Midlands County Council | | United Kingdom | |
| 1890 | Westbourne Business Systems Ltd | | United Kingdom | |
| 1891 | Westex Electronics | | United Kingdom | |
| 1892 | Westy Productions | | United Kingdom | |
| 1893 | WH Smith | | United Kingdom | |
| 1894 | White Panter Software | | United Kingdom | |
| 1895 | Whitethorn Software | | United Kingdom | |
| 1896 | Whiz Bang Software | | United Kingdom | |
| 1897 | Whizkid Software | | United Kingdom | |
| 1898 | Wicked Software | | United Kingdom | |
| 1899 | Wildest Dreams | | United Kingdom | |
| 1900 | Willden Computer Programs | | United Kingdom | |
| 1901 | William Stuart Systems Ltd | | United Kingdom | |
| 1902 | Williams Technology | | United Kingdom | |
| 1903 | Willowbank Computing | | United Kingdom | |
| 1904 | Willysoft UK | | United Kingdom | |
| 1905 | Wimsoft | | United Kingdom | |
| 1906 | Windosoft | | United Kingdom | |
| 1907 | Winters Ltd | | United Kingdom | |
| 1908 | Wintersoft | | United Kingdom | |
| 1909 | Wise Owl Software | | United Kingdom | |
| 1910 | Wiskisoft | | United Kingdom | |
| 1911 | Wizard Software | | United Kingdom | |
| 1912 | Wizard Supersoft | | United Kingdom | |
| 1913 | Wizbit Games | | United Kingdom | |
| 1914 | Womack Computer Systems | | United Kingdom | |
| 1915 | Wompa Software | | United Kingdom | |
| 1916 | Woodwynd Software | | United Kingdom | |
| 1917 | Wordsworth Software Ltd | | United Kingdom | |
| 1918 | Work Force | | United Kingdom | |
| 1919 | Wrightchoice Software | | United Kingdom | |
| 1920 | Wye Valley Software | | United Kingdom | |
| 1921 | Wyplan Software | | United Kingdom | |
| 1922 | Wyvern Software | | United Kingdom | |
| 1923 | X-Rated Software | | United Kingdom | |
| 1924 | Xcel | | United Kingdom | |
| 1925 | Xenon Software | | United Kingdom | |
| 1926 | XFAWORLD Software | | United Kingdom | |
| 1927 | Xiphias Soft | | United Kingdom | |
| 1928 | XORsoft | | United Kingdom | |
| 1929 | Xplosive Software | | United Kingdom | |
| 1930 | XRI Systems | | United Kingdom | |
| 1931 | Y-Not Software | | United Kingdom | |
| 1932 | Yale Software | | United Kingdom | |
| 1933 | Yes! Software | | United Kingdom | |
| 1934 | Younger Software | | United Kingdom | |
| 1935 | Z80 Pros | | United Kingdom | |
| 1936 | Zaeon Computronics | | United Kingdom | |
| 1937 | ZedXtra Software | | United Kingdom | |
| 1938 | Zeit Corporation | | United Kingdom | |
| 1939 | Zen Software | | United Kingdom | |
| 1940 | Zenobi Software | | United Kingdom | |
| 1941 | Zircon Software | | United Kingdom | |
| 1942 | Zodiac Software | | United Kingdom | |
| 1943 | ZX Incorporated | | United Kingdom | |
| 1944 | ZX Machine Code Users Club | | United Kingdom | |
| 1945 | ZX SAS (Serious Application Software) | | United Kingdom | |
| 1946 | ZX-Guaranteed | | United Kingdom | |
| 1947 | ZXF | | United Kingdom | |
| 1948 | ZXIF | | United Kingdom | |
