| 1 | C&VG | EMAP Business & Computer Publications Ltd | United Kingdom | |
| 2 | C&VG | EMAP Business & Computer Publications Ltd | United Kingdom | |
| 3 | C&VG (Gamebook) | | | |
| 4 | C&VG (Gamebook) | | | |
| 5 | C-Tech | United Kingdom | | |
| 6 | C.P.S. Games | Chameleon Computer Games | United Kingdom | |
| 7 | C.S.D. Co Ltd | United Kingdom | | |
| 8 | C.Servis Games | | | |
| 9 | C64CD Studios | | | |
| 10 | Cable Software | United Kingdom | | |
| 11 | Cabsoft | Computer Cabin | | |
| 12 | Cadsoft | United Kingdom | | |
| 13 | Calisto | Calisto Software Ltd | | |
| 14 | Calisto Software Ltd | | | |
| 15 | calodox | | | |
| 16 | Calpac Computer Software | United Kingdom | | |
| 17 | Cambic Software | United Kingdom | | |
| 18 | Cambridge Computing Research Ltd | United Kingdom | | |
| 19 | Cambridge Micro Software | United Kingdom | | |
| 20 | Cambridge Microcomputer Centre | United Kingdom | | |
| 21 | Cambridge Microelectronics | United Kingdom | | |
| 22 | Cambridge Research | | | |
| 23 | Camden Council | United Kingdom | | |
| 24 | Camel Micros | United Kingdom | | |
| 25 | Camel Products | Cambridge Microelectronics | United Kingdom | |
| 26 | Camel Software | United Kingdom | | |
| 27 | Campbell Systems | United Kingdom | | |
| 28 | Campion Software | Denmark | | |
| 29 | Canaan Software | United States | | |
| 30 | Cande Software | Spain | | |
| 31 | Candy Says | | | |
| 32 | Cannonball | Russia | | |
| 33 | Canvas | United Kingdom | | |
| 34 | Capcom | | | |
| 35 | Capsoft | ThunderWare Research Center | Netherlands | |
| 36 | Cardex | United Kingdom | | |
| 37 | Caris Software | United Kingdom | | |
| 38 | Carl Clayton | United Kingdom | | |
| 39 | Carl K. Bozicek | United Kingdom | | |
| 40 | Carlos Monroe Roig | Spain | | |
| 41 | Carnell Software Ltd | United Kingdom | | |
| 42 | Carol & Paul Bradbury | United Kingdom | | |
| 43 | Carol & Paul Bradbury | United Kingdom | | |
| 44 | Carrium Software | United Kingdom | | |
| 45 | Carter Follis Software Associates | United Kingdom | | |
| 46 | Cartoon Time | missing | | |
| 47 | Cascade Games Ltd | | | |
| 48 | Cascade Games Ltd | Artronic Products Ltd | United Kingdom | |
| 49 | Cases Computer Simulations Ltd | | | |
| 50 | Casey Bee Games | United Kingdom | | |
| 51 | Cassell Ltd | Holt Saunders Ltd | | |
| 52 | cassiopeia | | | |
| 53 | Cassiopeia | Slovakia | | |
| 54 | Castle Software | United Kingdom | | |
| 55 | Castor Cracking Group | Sweden | Stockholm | |
| 56 | Castor Cracking Group | Sweden | | |
| 57 | Casventures Ltd | Lee Tonks | United Kingdom | |
| 58 | Cat-Man | | | |
| 59 | Catalyst Coders | United Kingdom | | |
| 60 | Cathedral Software | United Kingdom | | |
| 61 | Cav Inc | Russia | Rybinsk | |
| 62 | Cavern Software | United Kingdom | | |
| 63 | CBM | | | |
| 64 | CCP Software | United Kingdom | | |
| 65 | CCS | Cases Computer Simulations Ltd | | |
| 66 | CDS Microsystems | Guildhall Leisure | | |
| 67 | CDT Productions | United Kingdom | | |
| 68 | Celerysoft | United Kingdom | | |
| 69 | Celina Ltd | United Kingdom | | |
| 70 | Celtic Revision Software | United Kingdom | | |
| 71 | Celtic Software | United Kingdom | | |
| 72 | Celyn Jones Software | United Kingdom | | |
| 73 | Centas | Spain | | |
| 74 | Centaurisoft | United Kingdom | | |
| 75 | Central Solutions | United Kingdom | | |
| 76 | Centre Divulgador de la Informatica | Generalitat de Catalunya | | |
| 77 | CentreSoft | | | |
| 78 | Centronics | Russia | Moscow | |
| 79 | Centronics Group | | | |
| 80 | Century | | | |
| 81 | Century City Software Ltd | United Kingdom | | |
| 82 | Century Communications | | | |
| 83 | Century Communications Ltd | Century Publishing Co. Ltd | | |
| 84 | Century Publishing Co. Ltd | | | |
| 85 | Century Software [1] | missing | | |
| 86 | Century Software [2] | Power Software S.A. | Spain | |
| 87 | Ceran Software | United Kingdom | | |
| 88 | Cerikopic | Belarus | Brest | |
| 89 | Cerikopik Software Inc. | | | |
| 90 | Cesar Hernandez Bano | Spain | | |
| 91 | Cesar Nicolas Gonzalez | Spain | | |
| 92 | CEZ | | | |
| 93 | Cez Gs Spectrum | | | |
| 94 | CEZGS | | | |
| 95 | Chad Software | United Kingdom | | |
| 96 | Chainik Hackers | | | |
| 97 | Chainik Hackers Group | Russia | | |
| 98 | Chainik Hackers Group | Russia | | |
| 99 | Chalksoft Ltd | United Kingdom | | |
| 100 | Challenge Software | United Kingdom | | |
| 101 | Chameleon Computer Games | United Kingdom | | |
| 102 | Chameleon Computers Ltd | United Kingdom | | |
| 103 | Chance Soft | | | |
| 104 | Channel 8 Software | United Kingdom | | |
| 105 | Chaos Energy Group | Russia | Yoshkar-Ola | |
| 106 | Chaotic Soft | Czech Republic | | |
| 107 | Chaotic Soft | Czech Republic | | |
| 108 | Chapman and Beckingham Software | United Kingdom | | |
| 109 | Charles A. Sharp | United Kingdom | | |
| 110 | Charles Letts & Co | United Kingdom | | |
| 111 | Charles Letts & Co | United Kingdom | | |
| 112 | Charlton Tutorials | United Kingdom | | |
| 113 | Charly Computers Ltd | Germany | | |
| 114 | Charly Records | United Kingdom | | |
| 115 | Checkpoint | France | Orléans | |
| 116 | Cheep Games | United Kingdom | | |
| 117 | Cheep Games | United Kingdom | | |
| 118 | Cheese Freak Software | missing | | |
| 119 | Cheetah | | | |
| 120 | Cheetah International Ltd | | | |
| 121 | Cheetah Marketing Ltd | Cheetah International Ltd | | |
| 122 | Cheetahsoft Ltd | | | |
| 123 | CheetahSoft Ltd | missing | | |
| 124 | Chemist | | | |
| 125 | Chemist Soft | Russia | Krasnoyarsk | |
| 126 | Chemist Soft | Russia | | |
| 127 | Chemnesoft | Russia | Ufa | |
| 128 | Chemnesoft Group | | | |
| 129 | ChemneSoft Plus | Russia | Ufa | |
| 130 | Cheshire Micro Design | United Kingdom | | |
| 131 | Cheveron Group | | | |
| 132 | Chewsoft | Richard Hollins | United Kingdom | |
| 133 | Chezron Software | Fidcal | | |
| 134 | Chezron Software | United Kingdom | | |
| 135 | Chibur | United Kingdom | | |
| 136 | Childrens Infatuated Computers | Russia | | |
| 137 | Childsplay Software | United Kingdom | | |
| 138 | ChildWare Corporation | United States | | |
| 139 | Chips Software | Spain | | |
| 140 | Choice Software Ltd | United Kingdom | | |
| 141 | Chris Born | Netherlands | | |
| 142 | Chris Munns | United Kingdom | | |
| 143 | Chris Pile | United Kingdom | | |
| 144 | Chris Young | | | |
| 145 | Christopher James Software Ltd | United Kingdom | | |
| 146 | Chromasoft | United Kingdom | | |
| 147 | Church Army | | | |
| 148 | Church Army Resource Centre | Church Army | | |
| 149 | Church of the Latter Day Speccy | missing | | |
| 150 | CHURROSOFT | | | |
| 151 | CI5 The Amaters | Czech Republic | | |
| 152 | Cibercomp S.A. | Spain | | |
| 153 | Ciberne Software | Brazil | | |
| 154 | Cibernesis | Spain | | |
| 155 | Cibertron Software | Brazil | | |
| 156 | CIDsoft | MS-CID | Czech Republic | |
| 157 | CIR | missing | | |
| 158 | Circulo de Soft | Microamigo S.A. | | |
| 159 | Citizen Software | United Kingdom | | |
| 160 | Ciudadela Software | Spain | | |
| 161 | Clasic Software | Czech Republic | | |
| 162 | Class Games | United Kingdom | | |
| 163 | Classic Conflicts | missing | | |
| 164 | Classic Software | United Kingdom | | |
| 165 | Claus Jahn | Germany | | |
| 166 | CLAW | Poland | | |
| 167 | Cleva Computerware | United Kingdom | | |
| 168 | Clever Music | United Kingdom | | |
| 169 | Clevers Group | Russia | Chelyabinsk | |
| 170 | Clive Brooker | United Kingdom | | |
| 171 | CLJ Industries | France | | |
| 172 | Clockwize | United Kingdom | | |
| 173 | Cloud 10 Software | United Kingdom | | |
| 174 | Cloud 9 Software | United Kingdom | | |
| 175 | Cloud Soft | Belarus | | |
| 176 | Clover Services | United Kingdom | | |
| 177 | Club Software | United Kingdom | | |
| 178 | Clwyd Adventure Software | United Kingdom | | |
| 179 | CNGSoft | missing | | |
| 180 | cngsoft | | | |
| 181 | Cobra Computer Software | United Kingdom | | |
| 182 | Cobra Soft [1] | missing | | |
| 183 | Cobra Soft [2] | Ukraine | | |
| 184 | Cobra Software | Ukraine | | |
| 185 | Cocasoft | Spain | | |
| 186 | Cochique&Chichari Soft | missing | | |
| 187 | Cochique&Chichari Soft | missing | | |
| 188 | Code Bastards Hackers Group | Ukraine | Kharkiv | |
| 189 | Code Blaster Group | | | |
| 190 | Code Blasters | | | |
| 191 | Code Busters | Russia | Kharkiv | |
| 192 | Code Gangsters | | | |
| 193 | Code Gangsters Group | Russia | Nizhny Tagil | |
| 194 | Code Masters Gold | missing | | |
| 195 | Code Masters Gold | | | |
| 196 | Code Masters Ltd | | | |
| 197 | Code Masters Ltd | Codemasters Ltd | | |
| 198 | Code Masters Plus | missing | | |
| 199 | Code Masters Plus | | | |
| 200 | Code Masters-91 | | | |
| 201 | Code Masters-92 | | | |
| 202 | Code Monkeys | | | |
| 203 | Code Monsters | Russia | Omsk | |
| 204 | Code Rapers Group | Russia | Saransk | |
| 205 | Code Reingers | | | |
| 206 | Code Reingers Group | Ukraine | Kharkiv | |
| 207 | Codebusters | Code Busters | Russia | Kharkiv |
| 208 | Codefuckers | Russia | Moscow | |
| 209 | Codemasters Ltd | | | |
| 210 | Codemonsters | Ukraine | Lviv | |
| 211 | Codemonsters Hackers Group | | | |
| 212 | Codemonsters HG | Russia | | |
| 213 | Codemonsters HG | Russia | | |
| 214 | CodeRaizers | Russia | Chelyabinsk | |
| 215 | Coders' Academy | Russia | | |
| 216 | Coders' Academy | Russia | | |
| 217 | Coders' Academy Interactive Group | Russia | Taganrog | |
| 218 | Codex Group | Russia | Ryazan | |
| 219 | Codex Software | Russia | | |
| 220 | Codigo Software | | | |
| 221 | Coding Kings Software | Russia | | |
| 222 | Cogitare Computing | | | |
| 223 | Cognito Software | missing | | |
| 224 | Colin Woodcock | United Kingdom | | |
| 225 | Collins Computing | | | |
| 226 | Collins Educational Ltd | United Kingdom | | |
| 227 | Collins Soft | Collins Educational Ltd | United Kingdom | |
| 228 | Colne Robotics Co Ltd | United Kingdom | | |
| 229 | Colonel Charisma Team | United Kingdom | | |
| 230 | Colossoft Research | missing | | |
| 231 | Colour of Magic | Russia | Vladivostok | |
| 232 | Colourmatic Computing | | | |
| 233 | Coma Software | United Kingdom | | |
| 234 | CoMAD Soft | Argentina | | |
| 235 | Comet Software | United Kingdom | | |
| 236 | Comix | | | |
| 237 | Command Software | missing | | |
| 238 | Commodore Plus | Spain | | |
| 239 | Companion Software | missing | | |
| 240 | Compass Software | Philip M. Reynolds | United Kingdom | |
| 241 | Compiler Software | Spain | | |
| 242 | Compiuter Soft | missing | | |
| 243 | Compu-Studio Ltd | Russia | | |
| 244 | Compuden Software | United Kingdom | | |
| 245 | Compulogical S.A. | Spain | | |
| 246 | Compumania | Spain | | |
| 247 | Compusound | United Kingdom | | |
| 248 | Computascope for Fun | United Kingdom | | |
| 249 | Computasolve | United Kingdom | | |
| 250 | Computer | Russia | | |
| 251 | Computer & Software Centre | United Kingdom | | |
| 252 | Computer & Software Centre | United Kingdom | | |
| 253 | Computer Adventure Studio | Poland | | |
| 254 | Computer Cabin | | | |
| 255 | Computer Choice | United Kingdom | | |
| 256 | Computer Emuzone | Spain | | |
| 257 | Computer Emuzone Games Studio | | | |
| 258 | Computer Gamer | missing | | |
| 259 | Computer Games | Finland | | |
| 260 | Computer Kontakt | Ratz-Eberle Verlag | | |
| 261 | Computer Magic | United Kingdom | | |
| 262 | Computer Novels | Sweden | | |
| 263 | Computer Publications | United Kingdom | | |
| 264 | Computer Rating Methods | United Kingdom | | |
| 265 | Computer Rats Group | Russia | Kurgan | |
| 266 | Computer Records | United Kingdom | | |
| 267 | Computer Services | United Kingdom | | |
| 268 | Computer Tutor | missing | | |
| 269 | Computer Wares | United Kingdom | | |
| 270 | Computer Work Company | Russia | | |
| 271 | Computerhouse [UK] Ltd | United Kingdom | | |
| 272 | Computeristic | United Kingdom | | |
| 273 | Computerlock | United Kingdom | | |
| 274 | Computermania | Uruguay | | |
| 275 | Computerposter | Germany | | |
| 276 | Computers for Education | United Kingdom | | |
| 277 | Computerworld | United Kingdom | | |
| 278 | Computing Today | missing | | |
| 279 | Computronic | Germany | | |
| 280 | ComTec | United Kingdom | | |
| 281 | Concept Animations | United Kingdom | | |
| 282 | Concept Software Ltd | United Kingdom | | |
| 283 | Concrete Digital Designs | missing | | |
| 284 | Conradorre Soft | Poland | | |
| 285 | Conscience | | | |
| 286 | Consciousness | Ukraine | | |
| 287 | Consolidated Software Marketing Ltd | United Kingdom | | |
| 288 | Constellation | | | |
| 289 | Constellation International Association | Russia | Kirovsk | |
| 290 | Consult Computer Systems | Consult Software Ltd | United Kingdom | |
| 291 | Consult Software Ltd | United Kingdom | | |
| 292 | Consumers' Association | United Kingdom | | |
| 293 | Consumers' Association | United Kingdom | | |
| 294 | Continental Software | United Kingdom | | |
| 295 | Contrast Software | United Kingdom | | |
| 296 | Control Software | Ireland | | |
| 297 | Convention | United Kingdom | Yeovil | |
| 298 | Coo Coo Soft | Czech Republic | | |
| 299 | Cool Guyz Company | Russia | Chelyabinsk | |
| 300 | Coolguys Ltd | United Kingdom | | |
| 301 | Copper Feet | missing | | |
| 302 | Copy Masters | Russia | Kaluga | |
| 303 | Copyright Control | missing | | |
| 304 | Coral Software | Poland | | |
| 305 | CORE Design Ltd | United Kingdom | | |
| 306 | Cornhill Services | United Kingdom | | |
| 307 | Cornsoft | Cornsoft Group Inc | | |
| 308 | Cornsoft Group Inc | | | |
| 309 | Corporation AS/DS | | | |
| 310 | Corwen Computer Systems | United Kingdom | | |
| 311 | Cosine | Germany | Leipzig | |
| 312 | Cosine Systems | United Kingdom | | |
| 313 | Cosmic | | | |
| 314 | Cosmic Software | United Kingdom | | |
| 315 | Cosmix | Russia | Moscow | |
| 316 | COSMOS designers | | | |
| 317 | Cottage Computing | United Kingdom | | |
| 318 | Courbois Software | Netherlands | | |
| 319 | Court Software | United Kingdom | | |
| 320 | Cowl Systems | United Kingdom | | |
| 321 | Coxsoft | Ian Cox | United Kingdom | |
| 322 | CP Software | United Kingdom | | |
| 323 | CPL Computer Plus Soft GmbH | Germany | | |
| 324 | CPL Computing | United Kingdom | | |
| 325 | CPS Hackers Group | Russia | Moscow | |
| 326 | Craccer Software Team | Denmark | | |
| 327 | Cracking Software | United Kingdom | | |
| 328 | Craft Ware | Russia | Yegoryevsk | |
| 329 | Craig Communications Ltd | United Kingdom | | |
| 330 | Craig Richard Davies | United Kingdom | | |
| 331 | Craigmount Computer Centre | United Kingdom | | |
| 332 | Cramsoft | missing | | |
| 333 | Crapsoft | Erik vh | Belgium | |
| 334 | CrapTeam | | | |
| 335 | Crash | Newsfield Publications Ltd | United Kingdom | |
| 336 | Crash Nicker | | | |
| 337 | Crazy Soft | missing | | |
| 338 | Crazy Studio | Russia | | |
| 339 | Crazytronic | Czech Republic | Znojmo | |
| 340 | CRC Software | Carl Clayton | United Kingdom | |
| 341 | Create Soft | Russia | | |
| 342 | Creative Computing | Germany | | |
| 343 | Creative Computing Press | United States | | |
| 344 | Creative Corporation Zhuki | Ukraine | Kharkiv | |
| 345 | Creative Edge | United Kingdom | | |
| 346 | Creative Juices | missing | | |
| 347 | Creative Materials Ltd | United Kingdom | | |
| 348 | Creative Micro Stimulation | United Kingdom | | |
| 349 | Creative Reality | United Kingdom | | |
| 350 | Creative Sparks | Thorn EMI Video Ltd | United Kingdom | |
| 351 | Creative Technology Group Ltd | United Kingdom | | |
| 352 | Creative.Radical.Alternative.Production Games | United Kingdom | | |
| 353 | Creativos Editoriales S.A. | Spain | | |
| 354 | Creators [ZX] | | | |
| 355 | Creepsoft | Spain | | |
| 356 | Crescent | Turkey | Istanbul | |
| 357 | Crest | Germany | | |
| 358 | CRG | | | |
| 359 | Crisis (zx) | | | |
| 360 | CrisiSofT | missing | | |
| 361 | Critical Mass | Russia | Rostov-on-Don | |
| 362 | CRL | | | |
| 363 | CRL Group PLC | Online PLC | | |
| 364 | CRL Group PLC | United Kingdom | | |
| 365 | CRL Group PLC-88 | | | |
| 366 | CRL-88 | | | |
| 367 | Crom Software | Spain | | |
| 368 | Cronosoft | | | |
| 369 | Cronosoft [1] | Spain | | |
| 370 | Cronosoft [1] | Spain | | |
| 371 | Cronosoft [2] | United Kingdom | | |
| 372 | Cronosoft [2] | United Kingdom | | |
| 373 | Cropthorne Software | United Kingdom | | |
| 374 | Cross Software | United Kingdom | | |
| 375 | Cross Technics | Sweden | | |
| 376 | Cross-Road | Russia | Vsevolozhsk | |
| 377 | Crossword | | | |
| 378 | Crowd Company | Russia | Krasnodar | |
| 379 | Crusader Computing | United Kingdom | | |
| 380 | Crusader Computing | United Kingdom | | |
| 381 | Crush Group | Russia | | |
| 382 | Crush Group | Russia | | |
| 383 | CryptoGraphics | Ukraine | | |
| 384 | CryptoGraphics | Ukraine | | |
| 385 | Crystal Computing | Design Design Software | United Kingdom | |
| 386 | Crystal Corp | Russia | Moscow | |
| 387 | Crystal Dream | Ukraine | Lugansk | |
| 388 | Crystal Dream | CryptoGraphics | Ukraine | |
| 389 | Crysys | Software Publishing Associates | United Kingdom | |
| 390 | CSL Microdata | United Kingdom | | |
| 391 | CSP Systems | United Kingdom | | |
| 392 | Csucstechnika | Hungary | | |
| 393 | Cult Games | D&H Games | United Kingdom | |
| 394 | CulturaChip | | | |
| 395 | Currah Computer Components Ltd | DK'Tronics Ltd | United Kingdom | |
| 396 | Currys | United Kingdom | | |
| 397 | Curtis Jacobs Software Design Ltd | United Kingdom | | |
| 398 | Custom Cables International Ltd | Add-On Electronics Ltd | United Kingdom | |
| 399 | Custom Software | United Kingdom | | |
| 400 | CustomData Ltd | United Kingdom | | |
| 401 | CV Software | Vaclav Cinert | Czech Republic | |
| 402 | Cybadyne | United Kingdom | | |
| 403 | Cyber Dreams Software | Russia | Ivanovo | |
| 404 | Cyber Team | Russia | Iskitim | |
| 405 | Cybercon Enterprises | United Kingdom | | |
| 406 | Cybernetic Applications Ltd | United Kingdom | | |
| 407 | Cyberprog New Media | | | |
| 408 | CyberPunks Unity | Russia | Cherepovets | |
| 409 | CyberPunks Unity | Russia | | |
| 410 | Cybertronic Soft | Russia | Moscow | |
| 411 | Cybexlab | | | |
| 412 | Cybexlab Software | missing | | |
| 413 | Cybexlab Software | | | |
| 414 | Cyclone | United Kingdom | | |
| 415 | Cygnus Software | United Kingdom | | |
| 416 | Czerweny Electronica S.A.I.C. | Argentina | | |
