| 1 | S de Soft | | España | |
| 2 | S&B Software | | Reino Unido | |
| 3 | S&G Software | | Alemania | |
| 4 | S&S Software | | Italia | |
| 5 | S&S Software | | Rusia | Moscow |
| 6 | S-Tron | missing | | |
| 7 | S. Okoloku | | Estados Unidos | |
| 8 | S. System | | Rusia | |
| 9 | S.D. Software | | | |
| 10 | Sabresoft | | Reino Unido | |
| 11 | Sacred Scroll Software | | Reino Unido | |
| 12 | Saga Software | | Reino Unido | |
| 13 | Saga Software House | | Reino Unido | |
| 14 | Saga Systems Ltd | | Reino Unido | |
| 15 | Sage Group | | Rusia | Samara |
| 16 | Sagesoft | | Reino Unido | |
| 17 | Sagittarian Software Ltd | | Reino Unido | |
| 18 | Saint Software | | Rusia | |
| 19 | Saisoft | | República Checa | |
| 20 | Salamander Software | | Reino Unido | |
| 21 | Sales Curve Ltd | Square Enix | | |
| 22 | Salmon Electronics Ltd | | Reino Unido | |
| 23 | Salpicao Soft | | | |
| 24 | Samurai Software | | Reino Unido | |
| 25 | Samusoft | | | |
| 26 | Sanchez Crew | | Rusia | |
| 27 | Sanctum Games | | | |
| 28 | Saposoftware | | | |
| 29 | Sapphire Software | | Reino Unido | |
| 30 | Sar Investment Properties | | Reino Unido | |
| 31 | Sarov Spectrum Club | | Rusia | Sarov |
| 32 | SARUG Radio Amateur Group | | Reino Unido | |
| 33 | Satansoft | | Eslovenia | |
| 34 | Satellite Software Ltd | Palantir Programs | Reino Unido | |
| 35 | Satin Shiva Productions | | | |
| 36 | Satsoft | | Rusia | |
| 37 | Saturn Developments Ltd | | | |
| 38 | Saturnsoft | Saturn Developments Ltd | | |
| 39 | Satyr Software | | Reino Unido | |
| 40 | Saursoft | | República Checa | |
| 41 | Savers Alliance | | Rusia | Grodno |
| 42 | Saxon Computing | | Reino Unido | |
| 43 | SBFAQ | | | |
| 44 | SC Studio GCG | | Rusia | |
| 45 | SCAINET SOFT | | | |
| 46 | Scandinavian Software Crackers | | Dinamarca | |
| 47 | Scanner Hackers Group | | Rusia | Krasnoyarsk |
| 48 | Scanner Software | | España | |
| 49 | Scarab Systems | | Reino Unido | |
| 50 | Scathing Soft | | España | |
| 51 | Sceiron | | Reino Unido | |
| 52 | Scele & Ufo Software | | Alemania | |
| 53 | Scene | | Rusia | |
| 54 | ScenePt All Stars | | | |
| 55 | Scenergy Team | | Rusia | Moscow |
| 56 | SCG | | Rusia | |
| 57 | SciCAL Software Ltd | | Reino Unido | |
| 58 | Scientific Software | | Reino Unido | |
| 59 | Scimitar Software | | Reino Unido | |
| 60 | Scisoft | | Reino Unido | |
| 61 | Scoopex | | Polonia | |
| 62 | Scope Designs | The Shaw Brothers | Reino Unido | |
| 63 | Scorby Soft | | Reino Unido | |
| 64 | Scorp Software | | Rusia | Moscow |
| 65 | Scorpio Gamesworld Ltd | | Reino Unido | |
| 66 | Scorpio Software | Scorpio Gamesworld Ltd | Reino Unido | |
| 67 | Scorpion | | República Checa | |
| 68 | Scorpion & K' Hackers Group | | Rusia | St.Petersburg |
| 69 | Scorpion Club | | Rusia | Moscow |
| 70 | Scorpion Firm | | República Checa | |
| 71 | Scorpion Hackers Group | | | |
| 72 | Scorpion Software | | Rusia | |
| 73 | Scorpion Software | | Reino Unido | |
| 74 | Scorpions Software Inc | | | |
| 75 | Scot Press Ltd | | | |
| 76 | Scotsoft | | Reino Unido | |
| 77 | SCP Hackers | Sociedad de Cazadores Pekineses | España | |
| 78 | SCP'86 | Software Computer Projects | | |
| 79 | SCR Adventures | | Reino Unido | |
| 80 | screamer | | | |
| 81 | Screen 7 Ltd | Software Communications Ltd | Reino Unido | |
| 82 | Screen Soft | | Reino Unido | |
| 83 | Screengraphics | | Reino Unido | |
| 84 | Screensoft | | República Checa | |
| 85 | Screws Creative Group | | Rusia | Kursk |
| 86 | Scsibrany Software | | Alemania | |
| 87 | Scumari | | | |
| 88 | SD Group | | | |
| 89 | SD Micro Systems | | Reino Unido | |
| 90 | SD-Group | | | |
| 91 | SDL Adventures | | Reino Unido | |
| 92 | SDV LTD | | | |
| 93 | Se | | | |
| 94 | SEA Group | | Rusia | Izhevsk |
| 95 | Seaconsoft | | Italia | |
| 96 | Seamans Beer Users Hackers Group | | Rusia | Moscow |
| 97 | Seamen Beer Users Hackers Group | Seamans Beer Users Hackers Group | Rusia | Moscow |
| 98 | Season Soft | | Reino Unido | |
| 99 | Sector Software | Dimensions 41 | Reino Unido | |
| 100 | See Bee Software | | Reino Unido | |
| 101 | Sega | | Reino Unido | |
| 102 | Sega and Co | | | |
| 103 | Selec Software | | Reino Unido | |
| 104 | Selected Realms | | Rusia | Perm |
| 105 | Semilanceata | | | |
| 106 | Sendest | | Rusia | Krasnodar |
| 107 | Sendy | | | |
| 108 | Sensible Software | Codemasters Ltd | | |
| 109 | Sensoft | | Reino Unido | |
| 110 | Sentient Software Ltd | | Reino Unido | |
| 111 | Sequentia Soft | | | |
| 112 | Serachan | | Rusia | |
| 113 | Serachan Group | | Ucrania | Donetsk |
| 114 | Serge Oursoft | | Rusia | |
| 115 | Sergey Entertainment | | Rusia | |
| 116 | Serin Software | | Reino Unido | |
| 117 | Serious Applications Software | | Reino Unido | |
| 118 | Serious Makers Group | Serious Speccy Group | Rusia | Kaliningrad |
| 119 | Serious Ravers | | | |
| 120 | Serious Software | | Reino Unido | |
| 121 | Serious Speccy Group | | Rusia | Kaliningrad |
| 122 | Serma Software | Serma Software Espana | | |
| 123 | Serma Software Espana | | | |
| 124 | Seroco Soft | | España | |
| 125 | Serzhsoft | | Rusia | |
| 126 | Seurasoft | | Polonia | |
| 127 | Seven Stars Publishing | | Reino Unido | |
| 128 | Severn Software | Interceptor Group | Reino Unido | |
| 129 | Seymour Systems | | Reino Unido | |
| 130 | SF Group | | Rusia | Tihvin |
| 131 | SF Software | | Rusia | Moscow |
| 132 | SF Studio | | | |
| 133 | Sfera Soft Ltd | | | |
| 134 | SG Comp | | | |
| 135 | SG Software | | Rusia | |
| 136 | SG-Team | | Rusia | Cherkassy |
| 137 | SGL Team | | Rusia | Moscow |
| 138 | Shabash Soft Group | | Rusia | Ulyanovsk |
| 139 | Shades | | | |
| 140 | Shadez | | | |
| 141 | Shadow Group | | Rusia | Kovrov |
| 142 | Shadow Software | | Reino Unido | |
| 143 | Shaft Corporation LTD | | | |
| 144 | Shamsoft | | Rusia | |
| 145 | Shards Software Ltd | Kesherweb | | |
| 146 | Sharma Software | | Reino Unido | |
| 147 | Sharps Inc | | Estados Unidos | |
| 148 | Shattered Dreams | | Dinamarca | |
| 149 | Shaun Bebbington | | Reino Unido | |
| 150 | Sheol Software | | Reino Unido | |
| 151 | Sherston Software | | Reino Unido | |
| 152 | Shirekilo Ltd | | Reino Unido | |
| 153 | Shisoft | | Rusia | Moscow |
| 154 | Shiva Publishing Ltd | | Reino Unido | |
| 155 | Shmaps Group | | Rusia | Moscow |
| 156 | Shock Brigade | | Rusia | Kaliningrad |
| 157 | Shock Software | | Rusia | Kirov |
| 158 | ShockWave | | Rusia | Chelyabinsk |
| 159 | Shodan Software | | Reino Unido | |
| 160 | Shoemakers of Filipp | | Rusia | |
| 161 | Shop For Games | | Eslovaquia | |
| 162 | Shorten Suite Software | | Reino Unido | |
| 163 | Shrap Software | | Eslovaquia | |
| 164 | Shrsoft | | Rusia | |
| 165 | Shulwater Ltd | | Reino Unido | |
| 166 | Shumice Software Company | | República Checa | Šumice |
| 167 | Shura Code Corporation | | Rusia | |
| 168 | Shuric Program | | Rusia | |
| 169 | Sibcrew | | Rusia | |
| 170 | Siberian Group | | Rusia | Krasnoyarsk |
| 171 | sibKrew | Sibcrew | Rusia | |
| 172 | Sidewinder Micro-Systems | | Reino Unido | |
| 173 | Siel UK Ltd | | Reino Unido | |
| 174 | Sierra On-Line | | Estados Unidos | |
| 175 | Sift S.A. | | España | |
| 176 | Siglo XX | | España | |
| 177 | Sigma Soft | | Reino Unido | |
| 178 | Sigma Technical Press | | Reino Unido | |
| 179 | Sigmasoft | | Reino Unido | |
| 180 | Signature Designers Group | | | |
| 181 | Silas Software | | Reino Unido | |
| 182 | Silence Crionix Electronics Entertainment (Scene) | | Ucrania | |
| 183 | Silhouette Software | | Reino Unido | |
| 184 | Silicon Brains | | Ucrania | Nikolaev |
| 185 | Silicon Games | | España | |
| 186 | Silicon Joy | | | |
| 187 | Silicon Kid | | Reino Unido | |
| 188 | Silicon Software | | Reino Unido | |
| 189 | Silva Soft | | Rusia | |
| 190 | Silver Fox Communications Ltd | | Reino Unido | |
| 191 | Silver Soft | | Rusia | Chelyabinsk |
| 192 | Silver Star Group | | Rusia | |
| 193 | Silverbird Software Ltd | Telecomsoft | Reino Unido | |
| 194 | Silverlind Ltd | | Reino Unido | |
| 195 | Silversoft Ltd | Online PLC | Reino Unido | |
| 196 | Sim & BonySoft | | Rusia | |
| 197 | Simba Software | | Reino Unido | |
| 198 | simbols | | Rusia | Chaykovskiy |
| 199 | Simmer Software | | Reino Unido | |
| 200 | Simmons Electronics | | Reino Unido | |
| 201 | Simon Allan Software | | Reino Unido | |
| 202 | Simon Micro-Soft | | Reino Unido | |
| 203 | Simon Software | | Reino Unido | |
| 204 | SimonSoft | | | |
| 205 | Simple Company | | Rusia | |
| 206 | Simple Soft | | | |
| 207 | Simply Software | | Reino Unido | |
| 208 | Simsoft | | Rusia | Donetsk |
| 209 | Sinc Masters Creative Group | | Rusia | Nizhniy Novgorod |
| 210 | Sinclair Club | | Rusia | Neftekamsk |
| 211 | Sinclair Club Zlin | | República Checa | |
| 212 | Sinclair Gebruiker | Micropress | Países Bajos | |
| 213 | Sinclair Learning Lab | | | |
| 214 | Sinclair Programs | ECC Publications Ltd | | |
| 215 | Sinclair Research Ltd | | Reino Unido | |
| 216 | Sinclair Research Ltd [PT] | | Reino Unido | |
| 217 | Sinclair Society | | | |
| 218 | Sinclair User | ECC Publications Ltd | | |
| 219 | Sinclair User | | Reino Unido | |
| 220 | Sinclair User Club | | Países Bajos | |
| 221 | Sinclairland | | Rusia | |
| 222 | Sindicato del Software | | España | |
| 223 | Singular Crew | | Hungría | |
| 224 | Sintax S.A. | | España | |
| 225 | Sinus Software | | República Checa | |
| 226 | Sipe | | | |
| 227 | Sirius Group | | Rusia | Kazan |
| 228 | Sirius Software | | Reino Unido | |
| 229 | SirotaSoft | | Ucrania | |
| 230 | Sistemas de Informatica e Som Ltda | | | |
| 231 | Sitting Bull Software | | Reino Unido | |
| 232 | Sivis | Sistemas de Informatica e Som Ltda | | |
| 233 | Sizzlers | | | |
| 234 | SJS Software | | Reino Unido | |
| 235 | SKAL Studio | | Rusia | Perm |
| 236 | Skorpyo | | España | |
| 237 | Skrju | | Rusia | |
| 238 | SKS Software | | Reino Unido | |
| 239 | SKUAT Soft | | España | |
| 240 | Skusoft | | República Checa | |
| 241 | Sky | | Rusia | Saransk |
| 242 | Skyslip Software | | Reino Unido | |
| 243 | Skysoft | | Reino Unido | |
| 244 | SLA Corp Ltd | | Polonia | |
| 245 | Slabihoud Software | | Alemania | |
| 246 | SlavJack Software | | Rusia | Cheboksary |
| 247 | Sleepwalkers | | Rusia | |
| 248 | Slicker Hackers Group | | Rusia | Tula |
| 249 | Sliders Creative & Hackers Group | | Rusia | Volzhskiy |
| 250 | Slipstream | | | |
| 251 | Slogger Software | | Reino Unido | |
| 252 | Slow Death Company | | | |
| 253 | Slowglass | | España | |
| 254 | SLUG | | Reino Unido | |
| 255 | SM Indipendant Software | | Italia | |
| 256 | SM Software | | Italia | |
| 257 | Small School Software | | Reino Unido | |
| 258 | Smart Egg Software | | Reino Unido | |
| 259 | Smash Hackers Band | | Ucrania | Nova Vodolaha |
| 260 | Smash Soft Inc | | Rusia | Nizhniy Novgorod |
| 261 | SMB Software | | Reino Unido | |
| 262 | SMC Goldseal Software | | Reino Unido | |
| 263 | SmileGames | | | |
| 264 | Smiling Assassin | | Reino Unido | |
| 265 | Smokers Hackers Group | | | |
| 266 | Smokers Team | | Rusia | Minsk |
| 267 | Sneesby Software | | Reino Unido | |
| 268 | SNK-Graphics | | Rusia | |
| 269 | Snoopysoft | | Alemania | |
| 270 | Soccer Enterprises | | Reino Unido | |
| 271 | Sociedad de Cazadores Pekineses | | España | |
| 272 | Sociedade por Accions | | España | |
| 273 | Sockmonsters Ltd | | Reino Unido | |
| 274 | Socratic Software | | Reino Unido | |
| 275 | Sodom & Gommorah Software | | | |
| 276 | Soft Centre | | Reino Unido | |
| 277 | Soft Concern Ltd | | Reino Unido | |
| 278 | Soft Corn | | Reino Unido | |
| 279 | Soft Design | | Reino Unido | |
| 280 | Soft Hits | EMAP Business & Computer Publications Ltd | Reino Unido | |
| 281 | Soft Joe's Software | | Reino Unido | |
| 282 | Soft Juliet | Juliet Software | España | |
| 283 | Soft Machine | | Reino Unido | |
| 284 | Soft Option Ltd | | Reino Unido | |
| 285 | Soft Sell Computer Software | | Reino Unido | |
| 286 | Soft-Music | | Alemania | |
| 287 | Softaxel | | Bielorrusia | Minsk |
| 288 | Softdreamers | | Kazajistán | |
| 289 | Softeam | | Reino Unido | |
| 290 | SOFTEC | Florin Giurcan | Rumania | |
| 291 | Softechnics | | | |
| 292 | Softek | Edge Games Inc | | |
| 293 | Softek International Ltd | Edge Games Inc | | |
| 294 | Softel | | Reino Unido | |
| 295 | Softenterprise | | Rusia | St.Petersburg |
| 296 | Softfar | | República Checa | |
| 297 | Softhouse Ltd | | Eslovaquia | |
| 298 | Softland Studio | | Rusia | St.Petersburg |
| 299 | Softlee Systems | | Reino Unido | |
| 300 | Softlight | | | |
| 301 | Softlink | | Reino Unido | |
| 302 | Softmans Group | | Rusia | Nizhni Taguil |
| 303 | Softricks | | Reino Unido | |
| 304 | Softronic | | República Checa | |
| 305 | SoftShop International | | Reino Unido | |
| 306 | Softstar | | Rusia | Moscow |
| 307 | Softstone Ltd | | Reino Unido | |
| 308 | Softstorm Developments | | Reino Unido | |
| 309 | Softsync Inc | | | |
| 310 | Software AB | | | |
| 311 | Software Amaters | | Eslovaquia | |
| 312 | Software Amusements | | | |
| 313 | Software Artists | | Reino Unido | |
| 314 | Software Atlantico | | España | |
| 315 | Software BV | | | |
| 316 | Software Center S.A. | | España | |
| 317 | Software Communications Ltd | | Reino Unido | |
| 318 | Software Computer Projects | | | |
| 319 | Software Conversions Ltd | | Reino Unido | |
| 320 | Software Cottage | | Reino Unido | |
| 321 | Software Creations | | Reino Unido | Manchester |
| 322 | Software Editores | | España | |
| 323 | Software Farm | | Reino Unido | |
| 324 | Software for All | | Reino Unido | |
| 325 | Software for Excellence | | Estados Unidos | |
| 326 | Software Foundation | | Reino Unido | |
| 327 | Software Home | | Peru | |
| 328 | Software Images | | Reino Unido | |
| 329 | Software J&J | | España | |
| 330 | Software Liason | | Reino Unido | |
| 331 | Software mb | | España | |
| 332 | Software Micro Chip S.L. | | | |
| 333 | Software of Sweden | | Suecia | |
| 334 | Software Projects Ltd | | Reino Unido | |
| 335 | Software Publishing Associates | | Reino Unido | |
| 336 | Software Rebels | | República Checa | |
| 337 | Software Saur | | República Checa | |
| 338 | Software Solutions | | Reino Unido | |
| 339 | Software Sorcery | | Reino Unido | |
| 340 | Software Spectrum | | Italia | |
| 341 | Software Studio | | República Checa | |
| 342 | Software Studios | | Reino Unido | |
| 343 | Software Supersavers Ltd | Software Projects Ltd | Reino Unido | |
| 344 | Softwarecete | | | |
| 345 | Softwood Programs | | Reino Unido | |
| 346 | Softzone Ltd | | Reino Unido | |
| 347 | SOKOMIND designers | | | |
| 348 | Solar Publishing | | Reino Unido | |
| 349 | Solarsoft | Sunshine Books Ltd | Reino Unido | |
| 350 | Sole Solution Software | | Reino Unido | |
| 351 | SOLI | Les Systemes d'Ordinateur LOGO Inc | | |
| 352 | Solid Image Ltd | | Reino Unido | |
| 353 | Solsoft | | Reino Unido | |
| 354 | Solway Software | | Reino Unido | |
| 355 | Sonic 91 Software | | | |
| 356 | Sonic Graffiti | missing | | |
| 357 | Sonic Projects | | Reino Unido | |
| 358 | Sonic Soft | | Reino Unido | |
| 359 | Sonic Software | | Reino Unido | |
| 360 | Sonnen Verlag AG | | Alemania | |
| 361 | Sony Inc | | | |
| 362 | Sony Music Entertainment | | | |
| 363 | Sorbon Soft | | España | |
| 364 | Sortronics | | República Checa | Plzeň |
| 365 | SOS Ltd | | España | |
| 366 | Sospan Soft | | Reino Unido | |
| 367 | Sound Images | | Reino Unido | |
| 368 | Sound-on-Sound | Iberofon S.A. | España | |
| 369 | Source Software Ltd | | Reino Unido | |
| 370 | Source Solutions, Inc. | Cheveron Group | | |
| 371 | South Coast | | Reino Unido | |
| 372 | Southern Educational Software | | Reino Unido | |
| 373 | Southern Software | | Reino Unido | |
| 374 | Southway Software | | Reino Unido | |
| 375 | Sovereign Software | | Reino Unido | |
| 376 | SP Enterprises | | Reino Unido | |
| 377 | SP Software | | Reino Unido | |
| 378 | Space Age Software | | Reino Unido | |
| 379 | Space Compani | | Rusia | Moscow |
| 380 | Space Poison | | | |
| 381 | Space Team Group | | Rusia | Krasnoyarsk |
| 382 | Spaceballs | | Francia | Orléans |
| 383 | Spaceman Ltd | | Reino Unido | |
| 384 | Spacesoft | | Países Bajos | |
| 385 | Spark Creative Group | | Ucrania | Donetsk |
| 386 | Spark Software | | España | |
| 387 | Sparklers | Thorn EMI Video Ltd | Reino Unido | |
| 388 | Sparrow Books | Arrow Books Ltd | Reino Unido | |
| 389 | Spartan Software | | Reino Unido | |
| 390 | Spartans Sports Association | | Reino Unido | |
| 391 | SPE | | | |
| 392 | Speccy | | | |
| 393 | Speccy Boyz | | Eslovaquia | Košice |
| 394 | Speccy.pl | | Polonia | |
| 395 | Speccysoft | | Reino Unido | |
| 396 | Special FX Software Ltd | Rage Software PLC | | |
| 397 | Special Playgames | New Special Playgames | Italia | |
| 398 | Special Soft | | España | |
| 399 | Special Team | | Eslovaquia | |
| 400 | Specialist Programs | | Reino Unido | |
| 401 | Specsoft | | Reino Unido | |
| 402 | Spectra Computing | | Alemania | |
| 403 | Spectrasoft | | Reino Unido | |
| 404 | SPECTRAVENTURA | | España | |
| 405 | Spectravision | | República Checa | |
| 406 | Spectraxx Tape Magazine | | Reino Unido | |
| 407 | Spectre | | Hong Kong | Minsk |
| 408 | Spectre Guys | | Ucrania | |
| 409 | Spectresoft Ltd | | Reino Unido | |
| 410 | Spectrum Aces Group | | Rusia | Kirov |
| 411 | Spectrum Adventure Exchange Club | | Reino Unido | |
| 412 | Spectrum Club | | Reino Unido | |
| 413 | Spectrum Computer Info User Club | | Alemania | |
| 414 | Spectrum Computing | | | |
| 415 | Spectrum Discovery Club | | Reino Unido | |
| 416 | Spectrum Electronics | | Reino Unido | |
| 417 | Spectrum Fanatics Group | | Rusia | Moscow |
| 418 | Spectrum Games Ltd | | | |
| 419 | Spectrum Holdings | | Reino Unido | |
| 420 | Spectrum Microbase | | Reino Unido | |
| 421 | Spectrum Omega Software | | República Checa | |
| 422 | Spectrum Pricing | | Reino Unido | |
| 423 | Spectrum Software | | Reino Unido | |
| 424 | Spectrum Unemployed Users Group | | Reino Unido | |
| 425 | Spectrum User | | Reino Unido | |
| 426 | Spectrum User Club Wuppertal | | Alemania | |
| 427 | Spectrum Warriors Corp. | | Bielorrusia | Grodno |
| 428 | SpectrumSysWare | | Hungría | |
| 429 | Speculator Software | | Reino Unido | |
| 430 | Speed Code | | Rusia | St.Petersburg |
| 431 | Speed Company | | Rusia | Samara |
| 432 | Speedway | | Rusia | Voronezh |
| 433 | Speedwell Software | | Reino Unido | |
| 434 | Spencer Software | | Reino Unido | |
| 435 | Spermasoft Masturbatories | | Grecia | |
| 436 | Sphere Software | | Reino Unido | |
| 437 | Spheresoft | | Reino Unido | |
| 438 | Spi-Soft | | Reino Unido | |
| 439 | Spider Games | | Reino Unido | |
| 440 | Spiders Group | | Bielorrusia | Gomel |
| 441 | Spidersoft | | Reino Unido | |
| 442 | Spidersoft | | Reino Unido | |
| 443 | Spidersoft | | Reino Unido | |
| 444 | SpinalSoft | | | |
| 445 | Spindrift Software | | Reino Unido | |
| 446 | Spinnaker Software Corporation | Broderbund Software | Estados Unidos | |
| 447 | Spiral | | | |
| 448 | Spiral Software | | Reino Unido | |
| 449 | Spirit Software | | Reino Unido | |
| 450 | Spoof Software | | Reino Unido | |
| 451 | Sport & Racing Software | | Reino Unido | |
| 452 | Sportsoft | | Reino Unido | |
| 453 | Sprite Club Ltd | | Rusia | Ulyanovsk |
| 454 | Sprites | | Francia | |
| 455 | Sprytes Ltd | | Reino Unido | |
| 456 | SPS Designs | | Reino Unido | |
| 457 | Sputnik | | Polonia | |
| 458 | Square Enix | | | |
| 459 | Squaresoft | | Rusia | |
| 460 | SSC-Soft | Scandinavian Software Crackers | Dinamarca | |
| 461 | Ssoft | | Reino Unido | Taganrog |
| 462 | SSPH2 | | República Checa | |
| 463 | St. Bride's School | | | |
| 464 | St. Michael | Marks & Spencer | Reino Unido | |
| 465 | Stable Single Hackers Group | | Ucrania | Kharkiv |
| 466 | Stack Computer Services Ltd | | Reino Unido | |
| 467 | Stale Pixels | | | |
| 468 | Stalker | missing | | |
| 469 | Stalker Company | | | |
| 470 | Stall Edition | Studio Stall | Rusia | Pervouralsk |
| 471 | Stankisoft | | Alemania | |
| 472 | StapleSoft | | Rusia | |
| 473 | Star Control Hackers Group | | Ucrania | Kharkiv |
| 474 | Star Dreams | | Reino Unido | |
| 475 | Star Group | | Rusia | Yoshkar-Ola |
| 476 | Star Soft Group | | Rusia | Yoshkar-Ola |
| 477 | Star Software | Tony J. Byrne | Reino Unido | |
| 478 | Starbex Systems | | Reino Unido | |
| 479 | Starcade | Grandslam Interactive Ltd | | |
| 480 | Starcrash Software Systems | | Reino Unido | |
| 481 | Stardust | | Rusia | Perm |
| 482 | Stardust Software | | Reino Unido | |
| 483 | Starfire Hackers Group | | Rusia | Moscow |
| 484 | Starlight Software | Planthills Ltd | | |
| 485 | Starlite Software | | Reino Unido | |
| 486 | Stars of Keladan | | Rusia | Samara |
| 487 | Stars Software | | Reino Unido | |
| 488 | Stars Spectrum | | España | |
| 489 | Starsoft | | Reino Unido | |
| 490 | Starsoft Computer's Company | | República Checa | |
| 491 | Starsoft Educational | | Reino Unido | |
| 492 | StarterSoft | | Reino Unido | |
| 493 | Startgame Soft | | España | |
| 494 | Starzone Software | | Reino Unido | |
| 495 | State Soft Ltd | | Reino Unido | |
| 496 | Static Soft | | España | |
| 497 | Status Software | | Reino Unido | |
| 498 | STD Software | | Reino Unido | |
| 499 | Stealth Fighter Hackers Group | | Rusia | Ulyanovsk |
| 500 | Steam Railway Simulations | | Reino Unido | |
| 501 | steamroller | | | |
| 502 | Steel City Software Engineers | | | |
| 503 | Steel Falcons | | Ucrania | Lviv |
| 504 | Stell Software | | Reino Unido | |
| 505 | Stellar Company Inc. | | Rusia | |
| 506 | Stellar Services | | Reino Unido | |
| 507 | Stellar Software | | Reino Unido | |
| 508 | STEP Creative Group | | Rusia | Moscow |
| 509 | Stephen Hartley Computing | | | |
| 510 | Stephen Hartley Software | | Reino Unido | |
| 511 | Sterling Endeavours | | Reino Unido | |
| 512 | Sterling Publications Ltd | | | |
| 513 | Sterling Software | Sterling Publications Ltd | | |
| 514 | Steve Forde | | Reino Unido | |
| 515 | Steve's Software | | | |
| 516 | StewSoft | | República Checa | |
| 517 | Stichting Impuls | | | |
| 518 | Stichting Scoop Hobbyfonds | | | |
| 519 | Stivsoft | | Yugoslavia | |
| 520 | Stocks & Shares | | | |
| 521 | Stocksoft | | Reino Unido | |
| 522 | Stonechat Productions | | Reino Unido | |
| 523 | STOP Informatica | | Brasil | |
| 524 | Storm and Tempest | | Reino Unido | |
| 525 | Storm Software | | Reino Unido | |
| 526 | Storm Software | | | |
| 527 | Stormbringer Software | | Reino Unido | |
| 528 | Stormlord Company | | Rusia | Tomsk |
| 529 | STR Group | | Rusia | Ryazan |
| 530 | Strange Software | | Reino Unido | |
| 531 | Strangers Group | | Ucrania | Odessa |
| 532 | Strategic Creative Group | | Rusia | |
| 533 | Strategik & Tactics Ryazan Group | | Rusia | Ryazan |
| 534 | Stratic Software | | Reino Unido | |
| 535 | Stream Hackers | | Rusia | Moscow |
| 536 | Streetwise | | | |
| 537 | Strobe [A Flash of Brilliance] | UK Software Ltd | | |
| 538 | Studak Software | | República Checa | |
| 539 | Studio 'Godness of Destiny' | | | |
| 540 | Studio 7 | | Letonia | Riga |
| 541 | Studio B Ltd | | | |
| 542 | Studio Computerowe Koala | | Polonia | |
| 543 | Studio ITR | | Rusia | Kaliningrad |
| 544 | Studio JUA | | | |
| 545 | Studio K&S | | | |
| 546 | Studio KF | | | |
| 547 | Studio Scorpion Group | | Ucrania | Lviv |
| 548 | Studio Spectrum | | Ucrania | Lviv |
| 549 | Studio Stack | | Rusia | Azov |
| 550 | Studio Stall | | Rusia | Pervouralsk |
| 551 | Studio SZC | | Rusia | Chelyabinsk |
| 552 | Studio TM'M | Студия TM'M | Rusia | Krasnoyarsk |
| 553 | Studio VIKS | | | |
| 554 | Studio VISA | | Bielorrusia | Vitebsk |
| 555 | Studio Возраждение | | Rusia | Omsk |
| 556 | Stuffduck Software | The Shaw Brothers | Reino Unido | |
| 557 | Sty-Detch Crew | | Ucrania | |
| 558 | Style | | | |
| 559 | Style Group | | Rusia | |
| 560 | Style Soft | | Reino Unido | |
| 561 | Subdivision Team | | Rusia | Moscow |
| 562 | Subway Software | | Reino Unido | |
| 563 | Succes Software | | | |
| 564 | Success Group | | | |
| 565 | Sugar Loaf Software | | Reino Unido | |
| 566 | Sulis Software Ltd | | Reino Unido | |
| 567 | Summit Software | | Reino Unido | |
| 568 | Summit Software | Alternative Software Ltd | Reino Unido | |
| 569 | Sun Corp. | | Rusia | |
| 570 | Sun Soft | | Alemania | |
| 571 | Sunrise Electronic Ltd | | | |
| 572 | Sunshine Books Ltd | | Reino Unido | |
| 573 | Sunshine Publications Ltd | | | |
| 574 | Sunteam | | | |
| 575 | Supa Nova Ltd | | Reino Unido | |
| 576 | Super Play Software | | Rusia | |
| 577 | Super Sparklers | Thorn EMI Video Ltd | Reino Unido | |
| 578 | Superior Interactive | | | |
| 579 | Superior Software | | Reino Unido | |
| 580 | Superior Software Ltd | Superior Interactive | | |
| 581 | SuperNet Group | | Rusia | Moscow |
| 582 | Superscape Ltd | | Reino Unido | |
| 583 | Supersoft | | Reino Unido | |
| 584 | Supersoft | | Reino Unido | |
| 585 | Supersoft | | Alemania | |
| 586 | SuperSoft | | Rumania | |
| 587 | Supersoft [4] | | República Checa | |
| 588 | Supersoft Systems | | | |
| 589 | Supersonic Software Ltd | | Reino Unido | |
| 590 | Surdakar Group | | Rusia | Rybinsk |
| 591 | Sussex Software | | Reino Unido | |
| 592 | SUUG | Spectrum Unemployed Users Group | Reino Unido | |
| 593 | Suzy Soft | | Croacia | |
| 594 | Svenska Soft Service | | Suecia | |
| 595 | Svet Kompjutera | | Serbia | |
| 596 | Svosatasoft | | República Checa | |
| 597 | Swannsoft | | Reino Unido | |
| 598 | Swashbuckling Disappointment | | Reino Unido | |
| 599 | Swiecie Software Company | | Polonia | |
| 600 | SWM Software | | | |
| 601 | Sword Software | | Reino Unido | |
| 602 | Sybilasoft | | Eslovaquia | Bratislava |
| 603 | Sygma Press | | | |
| 604 | Synacroop Software | | Reino Unido | |
| 605 | Sync | Creative Computing Press | Estados Unidos | |
| 606 | Syndicate Group | | Ucrania | |
| 607 | Syndrome | | Rusia | Penza |
| 608 | Synergy | | Reino Unido | |
| 609 | Syntax Software | | Reino Unido | |
| 610 | Syrox | | Reino Unido | |
| 611 | Syrtis Software | | Reino Unido | |
| 612 | Sysoft | | Reino Unido | |
| 613 | System 3 Software Ltd | | Reino Unido | |
| 614 | System 4 | System 4 de Espana S.A. | | |
| 615 | System 4 de Espana S.A. | | | |
| 616 | System Applied Technology | | Reino Unido | |
| 617 | System Software | | Reino Unido | |
| 618 | System-Soft | | Reino Unido | |
| 619 | System4 | | | |
| 620 | Systematic Group | | Rusia | Kirov |
| 621 | Szafran | | | |
| 622 | Szafran Soft | | | |
| 623 | Системотехника | | Rusia | Ivanovo |
| 624 | Студия "Парсек" | | Rusia | Cheboksary |
| 625 | Студия TM'M | | Rusia | Krasnoyarsk |
