| 1 | S And S Software | Russia | Moscow | |
| 2 | S de Soft | España | | |
| 3 | S&B Software | Reino Unido | | |
| 4 | S&B Software | Reino Unido | | |
| 5 | S&G Software [1] | Germany | | |
| 6 | S&G Software [1] | Germany | | |
| 7 | S&S Software | Italy | | |
| 8 | S&S Software | Italy | | |
| 9 | S&S Software | | | |
| 10 | S. Okoloku | Estados Unidos | | |
| 11 | S. System | Russia | | |
| 12 | S.C.E.N.E. [2] | Russia | | |
| 13 | S.D. Software | Nev Young | Reino Unido | |
| 14 | Sabresoft | Reino Unido | | |
| 15 | Sacred Scroll Software | Reino Unido | | |
| 16 | Saga Software | Reino Unido | | |
| 17 | Saga Software House | Reino Unido | | |
| 18 | Saga Systems Ltd | Reino Unido | | |
| 19 | Sage Group | Russia | Samara | |
| 20 | Sagesoft | Reino Unido | | |
| 21 | Sagittarian Software Ltd | Reino Unido | | |
| 22 | Saint Software | Russia | | |
| 23 | Saisoft | República Checa | | |
| 24 | Salamander Software | Reino Unido | | |
| 25 | Sales Curve | | | |
| 26 | Sales Curve Ltd | Square Enix | | |
| 27 | Sales Curve Ltd | | | |
| 28 | Salmon Electronics Ltd | Reino Unido | | |
| 29 | Salpicao Soft | | | |
| 30 | Sam Style | Russia | | |
| 31 | Samurai Software | Reino Unido | | |
| 32 | Samusoft | Andres Roberto Samudio Monro | España | |
| 33 | SaNchez | | | |
| 34 | Sanchez Crew | Russia | | |
| 35 | Sanctum Games | | | |
| 36 | Saposoftware | missing | | |
| 37 | Sapphire Software | Reino Unido | | |
| 38 | Sar Investment Properties | Reino Unido | | |
| 39 | Sarov Spectrum Club | Russia | Sarov | |
| 40 | SARUG Radio Amateur Group | Reino Unido | | |
| 41 | SARUG Radio Amateur Group | Reino Unido | | |
| 42 | Satansoft | Slovenia | | |
| 43 | Satellite Software Ltd | Palantir Programs | Reino Unido | |
| 44 | Satin Shiva Productions | | | |
| 45 | Satsoft | Russia | | |
| 46 | Saturn Developments Ltd | | | |
| 47 | Saturnsoft | Saturn Developments Ltd | | |
| 48 | Satyr Software | Reino Unido | | |
| 49 | Saursoft | Lubomir Salanci | República Checa | Bratislava |
| 50 | savers | | | |
| 51 | Savers Alliance | Russia | Grodno | |
| 52 | Saxon Computing | Reino Unido | | |
| 53 | SBFAQ | | | |
| 54 | SC Studio GCG | Russia | | |
| 55 | SCAINET SOFT | | | |
| 56 | scalesmann | | | |
| 57 | Scandinavian Software Crackers | Denmark | | |
| 58 | Scanner Hackers Group | Russia | Krasnoyarsk | |
| 59 | Scanner Software | España | | |
| 60 | Scarab Systems | Reino Unido | | |
| 61 | Scathing Soft | missing | | |
| 62 | Sceiron | missing | | |
| 63 | Scele & Ufo Software | Germany | | |
| 64 | Scele & Ufo Software | Germany | | |
| 65 | Scene | | | |
| 66 | SCENE | | | |
| 67 | Scenergy | | | |
| 68 | Scenergy Team | Russia | Moscow | |
| 69 | SCG | Russia | | |
| 70 | schafft | | | |
| 71 | SciCAL Software Ltd | Reino Unido | | |
| 72 | Scientific Software | Reino Unido | | |
| 73 | Scimitar Software | Reino Unido | | |
| 74 | Scisoft | Reino Unido | | |
| 75 | Scoopex | | | |
| 76 | Scope Designs | The Shaw Brothers | Reino Unido | |
| 77 | Scorby Soft | Reino Unido | | |
| 78 | Scorp Software | Russia | Moscow | |
| 79 | Scorpio Gamesworld Ltd | Reino Unido | | |
| 80 | Scorpio Software | Scorpio Gamesworld Ltd | Reino Unido | |
| 81 | Scorpion | República Checa | | |
| 82 | Scorpion & K' Hackers Group | Russia | St.Petersburg | |
| 83 | Scorpion Club | Russia | Moscow | |
| 84 | Scorpion Firm | República Checa | | |
| 85 | Scorpion Hackers Group | | | |
| 86 | Scorpion Software [1] | Reino Unido | | |
| 87 | Scorpion Software [2] | Russia | | |
| 88 | Scorpions Software Inc | | | |
| 89 | Scot Press Ltd | | | |
| 90 | Scotsoft | Reino Unido | | |
| 91 | Scott Adams | Estados Unidos | | |
| 92 | Scott P. Denyer | Reino Unido | | |
| 93 | SCP Hackers | Sociedad de Cazadores Pekineses | España | |
| 94 | SCP'86 | Software Computer Projects | | |
| 95 | SCP'86 | Software Computer Projects | | |
| 96 | SCR Adventures | Reino Unido | | |
| 97 | SCR Adventures | Reino Unido | | |
| 98 | screamer | | | |
| 99 | Screen 7 | | | |
| 100 | Screen 7 Ltd | | | |
| 101 | Screen 7 Ltd | Software Communications Ltd | Reino Unido | |
| 102 | Screen Soft | Reino Unido | | |
| 103 | Screengraphics | Reino Unido | | |
| 104 | Screengraphics | Reino Unido | | |
| 105 | Screws Creative Group | Russia | Kursk | |
| 106 | Scsibrany Software | Germany | | |
| 107 | Scumari | missing | | |
| 108 | SD Group | | | |
| 109 | SD Micro Systems | Reino Unido | | |
| 110 | SD-Group | | | |
| 111 | SDL Adventures | Reino Unido | | |
| 112 | SDL Adventures | Reino Unido | | |
| 113 | SDV LTD | | | |
| 114 | Se | | | |
| 115 | SEA Group | Russia | Izhevsk | |
| 116 | Seaconsoft | Italy | | |
| 117 | Seamans | Russia | Moscow | |
| 118 | Seamans Beer Users Hackers Group | Russia | Moscow | |
| 119 | Seamans Beer Users Hackers Group | Russia | | |
| 120 | Seamen | | | |
| 121 | Sean Adams | | | |
| 122 | Season Soft | missing | | |
| 123 | Sector Software | Dimensions 41 | Reino Unido | |
| 124 | See Bee Software | Reino Unido | | |
| 125 | Sega | Reino Unido | | |
| 126 | Sega and Co | | | |
| 127 | Selec Software | Reino Unido | | |
| 128 | Selected Realms | Russia | Perm | |
| 129 | Semilanceata | | | |
| 130 | Sendest | Russia | Krasnodar | |
| 131 | Sendy | missing | | |
| 132 | Sensible | | | |
| 133 | Sensible Software | Codemasters Ltd | | |
| 134 | Sensible Software | | | |
| 135 | Sensoft | Reino Unido | | |
| 136 | Sentient Software Ltd | Reino Unido | | |
| 137 | Serge Oursoft | Russia | | |
| 138 | Sergey Bulba | | | |
| 139 | Sergey Entertainment | Russia | | |
| 140 | Sergio G.M. | España | | |
| 141 | Sergio Vaquer Montes | España | | |
| 142 | Serin Software | Reino Unido | | |
| 143 | Serious Applications Software | Reino Unido | | |
| 144 | Serious Makers Group | Russia | Kaliningrad | |
| 145 | serious ravers | | | |
| 146 | Serious Software | Reino Unido | | |
| 147 | Serious Speccy Group | Russia | Kaliningrad | |
| 148 | Serma Software | Serma Software Espana | | |
| 149 | Serma Software Espana | | | |
| 150 | Seroco Soft | España | | |
| 151 | Serzhsoft | Russia | Shadrinsk | |
| 152 | Seurasoft | Poland | | |
| 153 | Seven Stars Publishing | Reino Unido | | |
| 154 | Severn | | | |
| 155 | Severn Software | | | |
| 156 | Severn Software | Interceptor Group | | |
| 157 | Seymour Systems | Reino Unido | | |
| 158 | SF Group | Russia | Tihvin | |
| 159 | SF Software | Russia | Moscow | |
| 160 | SF Studio | | | |
| 161 | Sfera Soft Ltd | | | |
| 162 | SG Comp | missing | | |
| 163 | SG Software [2] | Russia | | |
| 164 | SG Team | Russia | Cherkassy | |
| 165 | SG-Team | | | |
| 166 | Shabash Soft Group | Russia | Ulyanovsk | |
| 167 | Shades | missing | | |
| 168 | Shadez | | | |
| 169 | Shadow Group | | | |
| 170 | Shadow Group | Russia | Kovrov | |
| 171 | Shadow Maker | | | |
| 172 | Shadow Soft | Russia | Novosibirsk | |
| 173 | Shadow Software | Reino Unido | | |
| 174 | ShaMAN | Belarus | | |
| 175 | Shamsoft | Russia | | |
| 176 | Shaos | | | |
| 177 | Shards Software Ltd | Kesherweb | | |
| 178 | Sharma Software | Reino Unido | | |
| 179 | Sharps Inc | Estados Unidos | | |
| 180 | Shattered Dreams | Denmark | | |
| 181 | Shaun Bebbington | Reino Unido | | |
| 182 | Sheol Software | Reino Unido | | |
| 183 | Sherston Software | Reino Unido | | |
| 184 | Shirekilo Ltd | missing | | |
| 185 | Shiru | Russia | | |
| 186 | Shisoft | Russia | Moscow | |
| 187 | Shiva Publishing Ltd | Reino Unido | | |
| 188 | Shock Brigade | Russia | Kaliningrad | |
| 189 | Shock Software | Russia | | |
| 190 | ShockSoftWare | Russia | Kirov | |
| 191 | Shodan Software | Reino Unido | | |
| 192 | Shoemakers of Filipp | Russia | | |
| 193 | Shop For Games | Slovakia | | |
| 194 | Shorten Suite Software | missing | | |
| 195 | Shrap Software | Slovakia | | |
| 196 | Shrsoft | Russia | Rybinsk | |
| 197 | Shulwater Ltd | Reino Unido | | |
| 198 | Shumice Software Company | República Checa | Šumice | |
| 199 | Shura Code Corporation | Russia | | |
| 200 | shuran33 | | | |
| 201 | Shuric Program | Russia | | |
| 202 | Sibcrew | Russia | | |
| 203 | Siberian Group | Russia | Krasnoyarsk | |
| 204 | sibKrew | | | |
| 205 | Sidewinder Micro-Systems | Reino Unido | | |
| 206 | Siel UK Ltd | Reino Unido | | |
| 207 | Sierra On-Line | Estados Unidos | | |
| 208 | Sift S.A. | España | | |
| 209 | Siglo XX | España | | |
| 210 | Sigma Soft [1] | Reino Unido | | |
| 211 | Sigma Technical Press | Reino Unido | | |
| 212 | Sigmasoft [2] | Reino Unido | | |
| 213 | Silas Software | Reino Unido | | |
| 214 | Silence Crionix Electronics Entertainment (Scene) | Ukraine | | |
| 215 | Silhouette Software | Reino Unido | | |
| 216 | Silicon Brains | Ukraine | Nikolaev | |
| 217 | Silicon Games | España | | |
| 218 | Silicon Joy | missing | | |
| 219 | Silicon Kid | Reino Unido | | |
| 220 | Silicon Software | Reino Unido | | |
| 221 | Silva Soft | Russia | | |
| 222 | Silver Fox Communications Ltd | Reino Unido | | |
| 223 | Silver Star Group | Russia | | |
| 224 | Silverbird Software Ltd | Telecomsoft | Reino Unido | |
| 225 | Silverlind Ltd | Reino Unido | | |
| 226 | Silversoft Ltd | Online PLC | Reino Unido | |
| 227 | Sim & BonySoft | Russia | | |
| 228 | Sim & BonySoft | Russia | | |
| 229 | Simba Software | Reino Unido | | |
| 230 | simbols | Russia | Grodno | |
| 231 | Simmer Software | Reino Unido | | |
| 232 | Simmons Electronics | Reino Unido | | |
| 233 | Simon Allan Software | Simon D. Allan | Reino Unido | |
| 234 | Simon D. Allan | Reino Unido | | |
| 235 | Simon Micro-Soft | missing | | |
| 236 | Simon Software | Reino Unido | | |
| 237 | Simon W. Hessel | Reino Unido | | |
| 238 | Simon Wood | Reino Unido | | |
| 239 | SimonSoft | | | |
| 240 | Simple Company | Russia | | |
| 241 | Simple Soft | | | |
| 242 | Simply Software | Reino Unido | | |
| 243 | Simsoft | Russia | Donetsk | |
| 244 | Sinc Masters Creative Group | Russia | Nizhniy Novgorod | |
| 245 | Sinclair Club | Russia | Neftekamsk | |
| 246 | Sinclair Gebruiker | Micropress [2] | Netherlands | |
| 247 | Sinclair Learning Lab | | | |
| 248 | Sinclair Programs | ECC Publications Ltd | | |
| 249 | Sinclair Research Ltd | missing | | |
| 250 | Sinclair Research Ltd [PT] | missing | | |
| 251 | Sinclair Society | | | |
| 252 | Sinclair User | ECC Publications Ltd | | |
| 253 | Sinclair User Club | Netherlands | | |
| 254 | Sinclairland | Russia | | |
| 255 | Sindicato del Software | missing | | |
| 256 | Singular Crew | Hungary | | |
| 257 | Sintax S.A. | España | | |
| 258 | Sir David | | | |
| 259 | Sirius Group | Russia | Kazan | |
| 260 | Sirius Software | Reino Unido | | |
| 261 | SirotaSoft | Ukraine | | |
| 262 | Sistemas de Informatica e Som Ltda | | | |
| 263 | Sitting Bull Software | Reino Unido | | |
| 264 | Sivis | Sistemas de Informatica e Som Ltda | | |
| 265 | Sizzlers | missing | | |
| 266 | SJS Software | Reino Unido | | |
| 267 | SKAL Studio | Russia | Perm | |
| 268 | Skorpyo | España | | |
| 269 | Skrju | Russia | | |
| 270 | SKS Software | Reino Unido | | |
| 271 | SKUAT Soft | España | | |
| 272 | Skusoft | República Checa | | |
| 273 | Sky | Russia | Saransk | |
| 274 | Skyslip Software | Reino Unido | | |
| 275 | Skysoft | Reino Unido | | |
| 276 | SLA Corp Ltd | Poland | | |
| 277 | Slabihoud Software | Stephan Slabihoud | Germany | |
| 278 | SlavJack Software | Russia | Cheboksary | |
| 279 | Slavomir Labsky | Slovakia | | |
| 280 | Slawomir Gebka | | | |
| 281 | Sleepwalkers | Russia | | |
| 282 | Slipstream | | | |
| 283 | Slogger Software | Reino Unido | | |
| 284 | Slow Death Company | | | |
| 285 | Slowglass | España | | |
| 286 | SLUG | Reino Unido | | |
| 287 | SM Indipendant Software | Italy | | |
| 288 | SM Software | Italy | | |
| 289 | Small School Software | Reino Unido | | |
| 290 | Smart Egg Software | Reino Unido | | |
| 291 | Smash H.B. | | | |
| 292 | Smash Hackers Band | Ukraine | Nova Vodolaha | |
| 293 | Smash Soft Inc | Russia | Nizhniy Novgorod | |
| 294 | SMB Software | Reino Unido | | |
| 295 | SMC Goldseal Software | M.A. Smith | Reino Unido | |
| 296 | SmileGames | | | |
| 297 | Smiling Assassin | Reino Unido | | |
| 298 | Smokers | Russia | Minsk | |
| 299 | Sneesby Software | missing | | |
| 300 | SNK | | | |
| 301 | SNK-Graphics | Russia | | |
| 302 | Snoopysoft | Germany | | |
| 303 | Soccer Enterprises | Reino Unido | | |
| 304 | Sociedad de Cazadores Pekineses | España | | |
| 305 | Sociedade por Accions | España | | |
| 306 | Sockmonsters Ltd | Reino Unido | | |
| 307 | Socratic Software | Reino Unido | | |
| 308 | Sodom & Gommorah Software | | | |
| 309 | Sodom & Gommorah Software | | | |
| 310 | Soft Centre | Reino Unido | | |
| 311 | Soft Concern Ltd | Reino Unido | | |
| 312 | Soft Corn | Reino Unido | | |
| 313 | Soft Design | Reino Unido | | |
| 314 | Soft Hits | EMAP Business & Computer Publications Ltd | Reino Unido | |
| 315 | Soft Joe's Software | Reino Unido | | |
| 316 | Soft Joe's Software | Reino Unido | | |
| 317 | Soft Juliet | Juliet Software | España | |
| 318 | Soft Machine | Reino Unido | | |
| 319 | Soft Option Ltd | Reino Unido | | |
| 320 | Soft Sell Computer Software | Reino Unido | | |
| 321 | Soft-Music | Germany | | |
| 322 | Softaxel | | | |
| 323 | Softeam | Reino Unido | | |
| 324 | SOFTEC | Florin Giurcan | Romania | |
| 325 | Softechnics | | | |
| 326 | Softek | | | |
| 327 | Softek | missing | | |
| 328 | Softek International Ltd | Edge Games Inc | | |
| 329 | Softel | Reino Unido | | |
| 330 | Softenterprise | Russia | St.Petersburg | |
| 331 | Softhouse Ltd | missing | | |
| 332 | Softland Studio | Russia | St.Petersburg | |
| 333 | Softlee Systems | Reino Unido | | |
| 334 | Softlight | | | |
| 335 | Softlink | Reino Unido | | |
| 336 | Softricks | Reino Unido | | |
| 337 | SoftShop International | Reino Unido | | |
| 338 | Softstar | Russia | Moscow | |
| 339 | Softstone Ltd | Reino Unido | | |
| 340 | Softstorm Developments | Reino Unido | | |
| 341 | Softsync Inc | missing | | |
| 342 | Software AB | | | |
| 343 | Software Amaters | Peter Machala | Slovakia | |
| 344 | Software Artists | Reino Unido | | |
| 345 | Software Atlantico | España | | |
| 346 | Software BV | | | |
| 347 | Software Center S.A. | España | | |
| 348 | Software Communications Ltd | Reino Unido | | |
| 349 | Software Computer Projects | | | |
| 350 | Software Conversions Ltd | Reino Unido | | |
| 351 | Software Cottage | Reino Unido | | |
| 352 | Software Creations | Reino Unido | Manchester | |
| 353 | Software Editores | España | | |
| 354 | Software Farm | missing | | |
| 355 | Software for All | Reino Unido | | |
| 356 | Software for Excellence | Estados Unidos | | |
| 357 | Software Foundation | Reino Unido | | |
| 358 | Software Home | Peru | | |
| 359 | Software Images | Reino Unido | | |
| 360 | Software J&J | España | | |
| 361 | Software J&J | España | | |
| 362 | Software Liason | Reino Unido | | |
| 363 | Software mb | España | | |
| 364 | Software Micro Chip S.L. | | | |
| 365 | Software of Sweden | Sweden | | |
| 366 | Software Projects Ltd | Reino Unido | | |
| 367 | Software Publishing Associates | Reino Unido | | |
| 368 | Software Rebels | República Checa | | |
| 369 | Software Saur | missing | | |
| 370 | Software Solutions | Reino Unido | | |
| 371 | Software Sorcery | missing | | |
| 372 | Software Spectrum | Italy | | |
| 373 | Software Studio | República Checa | | |
| 374 | Software Studios | Reino Unido | | |
| 375 | Software Supersavers Ltd | Software Projects Ltd | Reino Unido | |
| 376 | Softwarecete | | | |
| 377 | Softwood Programs | Reino Unido | | |
| 378 | Softzone Ltd | Reino Unido | | |
| 379 | SOKOMIND designers | | | |
| 380 | Solar Publishing | Reino Unido | | |
| 381 | Solarsoft | Sunshine Books Ltd | Reino Unido | |
| 382 | Sole Solution Software | Reino Unido | | |
| 383 | SOLI | Les Systemes d'Ordinateur LOGO Inc | | |
| 384 | Solid Image Ltd | Reino Unido | | |
| 385 | Solsoft | Reino Unido | | |
| 386 | Solway Software | Reino Unido | | |
| 387 | Sonic 91 Software | | | |
| 388 | Sonic Graffiti | missing | | |
| 389 | Sonic Projects | Reino Unido | | |
| 390 | Sonic Soft | Reino Unido | | |
| 391 | Sonic Software | Reino Unido | | |
| 392 | Sony Inc | | | |
| 393 | Sony Music Entertainment | | | |
| 394 | Sorbon Soft | España | | |
| 395 | Soren Borgquist | Denmark | | |
| 396 | SOS Ltd | España | | |
| 397 | Sospan Soft | Reino Unido | | |
| 398 | Sound Images | Reino Unido | | |
| 399 | Sound-on-Sound | Iberofon S.A. | España | |
| 400 | Source Software Ltd | Reino Unido | | |
| 401 | Source Solutions, Inc. | Cheveron Group | | |
| 402 | South Coast | Reino Unido | | |
| 403 | Southern Educational Software | Reino Unido | | |
| 404 | Southern Software | Reino Unido | | |
| 405 | Southway Software | Reino Unido | | |
| 406 | Sovereign Software | Reino Unido | | |
| 407 | SP Enterprises | missing | | |
| 408 | SP Software | Reino Unido | | |
| 409 | Space Age Software | Reino Unido | | |
| 410 | Space Compani | Russia | Moscow | |
| 411 | Space Poison | | | |
| 412 | Space Team Group | Russia | Krasnoyarsk | |
| 413 | Spaceballs | France | Orléans | |
| 414 | Spaceman Ltd | Reino Unido | | |
| 415 | Spacesoft | Netherlands | | |
| 416 | Spark Creative Group | Ukraine | Donetsk | |
| 417 | Spark Software | España | | |
| 418 | Sparklers | Thorn EMI Video Ltd | Reino Unido | |
| 419 | Sparrow Books | Arrow Books Ltd | Reino Unido | |
| 420 | Spartan Software | Reino Unido | | |
| 421 | Spartans Sports Association | Reino Unido | | |
| 422 | SPE | missing | | |
| 423 | Speccy | | | |
| 424 | Speccy Boyz | Slovakia | Košice | |
| 425 | Speccy.pl | Poland | | |
| 426 | Speccysoft | Reino Unido | | |
| 427 | Special FX Software Ltd | Rage Software PLC | | |
| 428 | Special Playgames | New Special Playgames | Italy | |
| 429 | Special Soft | España | | |
| 430 | Special Team | Slovakia | | |
| 431 | Specialist Programs | Reino Unido | | |
| 432 | Specsoft | Reino Unido | | |
| 433 | Spectra Computing | Germany | | |
| 434 | Spectrasoft | Reino Unido | | |
| 435 | SPECTRAVENTURA | España | | |
| 436 | Spectravision | República Checa | | |
| 437 | Spectraxx Tape Magazine | missing | | |
| 438 | Spectre | Belarus | Minsk | |
| 439 | Spectre Guys | missing | | |
| 440 | Spectresoft Ltd | Reino Unido | | |
| 441 | Spectrum Adventure Exchange Club | Reino Unido | | |
| 442 | Spectrum Club | Reino Unido | | |
| 443 | Spectrum Computer Info User Club | Germany | | |
| 444 | Spectrum Computing | missing | | |
| 445 | Spectrum Discovery Club | Reino Unido | | |
| 446 | Spectrum Electronics | Reino Unido | | |
| 447 | Spectrum Games Ltd | missing | | |
| 448 | Spectrum Holdings | Reino Unido | | |
| 449 | Spectrum Microbase | Reino Unido | | |
| 450 | Spectrum Omega Software | Michal Polak | República Checa | |
| 451 | Spectrum Pricing | Reino Unido | | |
| 452 | Spectrum Software | Reino Unido | | |
| 453 | Spectrum Unemployed Users Group | | | |
| 454 | Spectrum User | missing | | |
| 455 | Spectrum Warriors Corp. | Belarus | Grodno | |
| 456 | SpectrumSysWare | Hungary | | |
| 457 | Speculator Software | Reino Unido | | |
| 458 | Speed Company | Russia | Samara | |
| 459 | Speedway | Russia | Voronezh | |
| 460 | Speedwell Software | Reino Unido | | |
| 461 | Spencer Software | Reino Unido | | |
| 462 | Spermasoft Masturbatories | missing | | |
| 463 | Sphere Software | Reino Unido | | |
| 464 | Spheresoft | Reino Unido | | |
| 465 | Spi-Soft | Reino Unido | | |
| 466 | Spider Games | Reino Unido | | |
| 467 | Spidersoft | Reino Unido | | |
| 468 | Spidersoft [1] | Reino Unido | | |
| 469 | Spidersoft [2] | Reino Unido | | |
| 470 | SpinalSoft | | | |
| 471 | Spindrift Software | Reino Unido | | |
| 472 | Spinnaker Software Corporation | Broderbund Software | Estados Unidos | |
| 473 | Spiral | | | |
| 474 | Spiral Software | Andrey John Remic | Reino Unido | |
| 475 | Spirit Software | Reino Unido | | |
| 476 | Splinter | | | |
| 477 | Spoof Software | Reino Unido | | |
| 478 | Sport & Racing Software | Reino Unido | | |
| 479 | Sport & Racing Software | Reino Unido | | |
| 480 | Sportsoft | Reino Unido | | |
| 481 | Sprites | France | | |
| 482 | Sprytes Ltd | Reino Unido | | |
| 483 | SPS Designs | Reino Unido | | |
| 484 | Sputnik | Poland | | |
| 485 | Square Enix | | | |
| 486 | Squaresoft | Russia | | |
| 487 | SSC-Soft | Scandinavian Software Crackers | Denmark | |
| 488 | Ssoft | Reino Unido | Taganrog | |
| 489 | St. Bride's School | missing | | |
| 490 | St. Bride's School | missing | | |
| 491 | St. Michael | Marks & Spencer | Reino Unido | |
| 492 | Stable Single Hackers Group | Ukraine | Kharkiv | |
| 493 | Stack Computer Services Ltd | Reino Unido | | |
| 494 | Stalker | missing | | |
| 495 | Stall Edition | Studio Stall | Russia | Pervouralsk |
| 496 | Stankisoft | Germany | | |
| 497 | StapleSoft | Russia | | |
| 498 | Star Control Hackers Group | Ukraine | Kharkiv | |
| 499 | Star Dreams | Reino Unido | | |
| 500 | Star Group | Russia | Yoshkar-Ola | |
| 501 | Star Software | Tony J. Byrne | Reino Unido | |
| 502 | Starbex Systems | Reino Unido | | |
| 503 | Starcade | Grandslam Interactive Ltd | | |
| 504 | Starcrash Software Systems | Reino Unido | | |
| 505 | STARDUST | Russia | Perm | |
| 506 | Stardust (ZX) | | | |
| 507 | Stardust Software | Reino Unido | | |
| 508 | Starfire Hackers Group | Russia | Moscow | |
| 509 | Starlight Software | Planthills Ltd | | |
| 510 | Starlite Software | Reino Unido | | |
| 511 | Stars of Keladan | Russia | Samara | |
| 512 | Stars Software | Reino Unido | | |
| 513 | Stars Spectrum | España | | |
| 514 | Starsoft | Reino Unido | | |
| 515 | Starsoft Educational | Reino Unido | | |
| 516 | StarterSoft | Reino Unido | | |
| 517 | Startgame Soft | España | | |
| 518 | Starzone Software | Reino Unido | | |
| 519 | Stas Vihrov | | | |
| 520 | State Soft Ltd | Reino Unido | | |
| 521 | Static Soft | España | | |
| 522 | Status Software | Reino Unido | | |
| 523 | STD Software | Reino Unido | | |
| 524 | Steam Railway Simulations | Reino Unido | | |
| 525 | steamroller | | | |
| 526 | Steel City Software Engineers | | | |
| 527 | Steel Falcons | Ukraine | Lviv | |
| 528 | Stell Software | Reino Unido | | |
| 529 | Stellar Company Inc | Russia | | |
| 530 | Stellar Company Inc. | Russia | | |
| 531 | Stellar Services | Reino Unido | | |
| 532 | Stellar Software | Reino Unido | | |
| 533 | STEP Creative Group | Russia | Moscow | |
| 534 | Stephan Slabihoud | Germany | | |
| 535 | Stephen Groves | Reino Unido | | |
| 536 | Stephen Hartley Computing | | | |
| 537 | Stephen Hartley Software | Reino Unido | | |
| 538 | Stephen Preston | Reino Unido | | |
| 539 | Sterling Endeavours | missing | | |
| 540 | Sterling Publications Ltd | | | |
| 541 | Sterling Software | Sterling Publications Ltd | | |
| 542 | Steve A.J. Broad | Reino Unido | | |
| 543 | Steve Dixon | | | |
| 544 | Steve Forde | Reino Unido | | |
| 545 | Steve Lake | Reino Unido | | |
| 546 | Steve McCarthy | Reino Unido | | |
| 547 | Steven J. Howlett | Reino Unido | | |
| 548 | Steven Kendall | Reino Unido | | |
| 549 | StewSoft | República Checa | | |
| 550 | Stichting Impuls | | | |
| 551 | Stichting Scoop Hobbyfonds | | | |
| 552 | Stivsoft | Serbia | | |
| 553 | Stocks & Shares | | | |
| 554 | Stocks & Shares | | | |
| 555 | Stocksoft | Reino Unido | | |
| 556 | Stonechat Productions | missing | | |
| 557 | STOP Informatica | Brazil | | |
| 558 | Storm and Tempest | Reino Unido | | |
| 559 | Storm Software [1] | Reino Unido | | |
| 560 | Storm Software [2] | missing | | |
| 561 | Stormbringer Software | Reino Unido | | |
| 562 | Stormlord Company | Russia | Tomsk | |
| 563 | Strange Software | Reino Unido | | |
| 564 | Strangers Group | Russia | Odessa | |
| 565 | Strategic Creative Group | Russia | | |
| 566 | Stratic Software | Reino Unido | | |
| 567 | Stream Hackers | Russia | Moscow | |
| 568 | Streetwise | missing | | |
| 569 | Strobe [A Flash of Brilliance] | UK Software Ltd | | |
| 570 | Studak Software | República Checa | | |
| 571 | Studio 'Godness of Destany' | | | |
| 572 | Studio 'Godness of Destany' | | | |
| 573 | Studio 7 | Latvia | Riga | |
| 574 | Studio B Ltd | | | |
| 575 | Studio Computerowe Koala | Poland | | |
| 576 | Studio ITR | Russia | Kaliningrad | |
| 577 | Studio Stall | Russia | Pervouralsk | |
| 578 | Studio SZC | Russia | Chelyabinsk | |
| 579 | Studio TM'M | Russia | Krasnoyarsk | |
| 580 | Stuffduck Software | The Shaw Brothers | Reino Unido | |
| 581 | Sty-Detch Crew | Ukraine | | |
| 582 | Style | | | |
| 583 | Style Group | Russia | | |
| 584 | Style Group | Russia | | |
| 585 | Style Soft | Reino Unido | | |
| 586 | Subdivision Team | Russia | Moscow | |
| 587 | Subway Software | Reino Unido | | |
| 588 | Succes Software | | | |
| 589 | Success Group | | | |
| 590 | Sugar Loaf Software | Reino Unido | | |
| 591 | Sulis Software Ltd | Reino Unido | | |
| 592 | Summit Software [1] | Alternative Software Ltd | Reino Unido | |
| 593 | Summit Software [2] | Reino Unido | | |
| 594 | Sun Corp. | Russia | | |
| 595 | Sun Soft | missing | | |
| 596 | Sunrise Electronic Ltd | | | |
| 597 | Sunshine Books Ltd | Reino Unido | | |
| 598 | Sunshine Publications Ltd | | | |
| 599 | Sunteam | | | |
| 600 | Supa Nova Ltd | Reino Unido | | |
| 601 | Super Play Software | Russia | | |
| 602 | Super Sparklers | Thorn EMI Video Ltd | Reino Unido | |
| 603 | Superior Interactive | | | |
| 604 | Superior Software [1] | Reino Unido | | |
| 605 | Superior Software Ltd [2] | Superior Interactive | | |
| 606 | Superscape Ltd | | | |
| 607 | Supersoft | Reino Unido | | |
| 608 | Supersoft [1] | Reino Unido | | |
| 609 | SuperSoft [2] | Romania | | |
| 610 | Supersoft [3] | Germany | | |
| 611 | Supersoft Systems | missing | | |
| 612 | Supersonic | | | |
| 613 | Supersonic Software Ltd | Reino Unido | | |
| 614 | Surdakar Group | Russia | Rybinsk | |
| 615 | Sussex Software | Reino Unido | | |
| 616 | SUUG | Spectrum Unemployed Users Group | | |
| 617 | Suzy Soft | Croatia | | |
| 618 | SVC Software | Ukraine | | |
| 619 | Svenska Soft Service | Sweden | | |
| 620 | Svet Kompjutera | Serbia | | |
| 621 | Svosatasoft | República Checa | | |
| 622 | Swannsoft | Reino Unido | | |
| 623 | Swashbuckling Disappointment | Reino Unido | | |
| 624 | Swiecie Software Company | Poland | | |
| 625 | SWM Software | | | |
| 626 | Sword Software | Simon Wood | Reino Unido | |
| 627 | Sybilasoft | Slovakia | Bratislava | |
| 628 | Sygma Press | | | |
| 629 | Sygma Press | | | |
| 630 | Synacroop Software | Reino Unido | | |
| 631 | Sync | Creative Computing Press | Estados Unidos | |
| 632 | Syndicate Group | Ukraine | | |
| 633 | Syndrome | Russia | Penza | |
| 634 | Syndrome | Russia | | |
| 635 | Syndrome (ZX) | | | |
| 636 | Synergy | Reino Unido | | |
| 637 | Syntax Software | Reino Unido | | |
| 638 | Syrox | missing | | |
| 639 | Syrtis Software | Reino Unido | | |
| 640 | Sysoft | Reino Unido | | |
| 641 | System 3 | | | |
| 642 | System 3 Software Ltd | Reino Unido | | |
| 643 | System 3 Software Ltd-87 | | | |
| 644 | System 4 | | | |
| 645 | System 4 | System 4 de Espana S.A. | | |
| 646 | System 4 de Espana S.A. | | | |
| 647 | System Applied Technology | Reino Unido | | |
| 648 | System Software | Reino Unido | | |
| 649 | System-Soft | Reino Unido | | |
| 650 | System-Soft | Reino Unido | | |
| 651 | System4 | | | |
| 652 | Systematic Group | Russia | Kirov | |
| 653 | Szafran | | | |
| 654 | Szafran Soft | | | |
