The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 17301 | Sicily | £ 38,366,402 | |
| 17302 | Sick on a Widow | £ 145,081,811 | |
| 17303 | Sickness | £ -10,078,045 | |
| 17304 | Sickoz Company | £ 295,677,061 | |
| 17305 | Sid The Sexist | £ 11,083,450 | |
| 17306 | Sidders85 inc | £ 50,000 | |
| 17307 | Side Pony | £ 191,337,989 | |
| 17308 | SideLineD | £ 3,552,075 | |
| 17309 | Sidewinder | £ 227,297,344 | |
| 17310 | Sidewinder Missle | £ 83,498,906 | |
| 17311 | Sidney inc | £ 50,000 | |
| 17312 | Sids Emporium | £ 15,032,548 | |
| 17313 | Sieber | £ 50,000 | |
| 17314 | Sifosed Enterprises | £ 25,255 | |
| 17315 | Sift co | £ -137,410 | |
| 17316 | Sighs | £ 9,874,626 | |
| 17317 | Sight | £ 200,734,160 | |
| 17318 | Sigma | £ 69,225,770 | |
| 17319 | Sigma Industries | £ 17,556 | |
| 17320 | Sigma-957 | £ 56,676,770 | |
| 17321 | Sigma-Aldrich | £ 3,448,228,882 | |
| 17322 | Sign | £ 51,894,494 | |
| 17323 | Signals | £ 261,204,208 | |
| 17324 | Silat | £ 224,852,851 | |
| 17325 | Silence | £ 71,427,509 | |
| 17326 | silent assassin | £ 1,250,769 | |
| 17327 | Silent Contractors | £ 50,000 | |
| 17328 | Silent Inc. | £ 286,365,315 | |
| 17329 | Silent Stalker | £ 1,059,795 | |
| 17330 | Silent Witness | £ 75,184,504 | |
| 17331 | Silent_Whisper | £ 189,456,569 | |
| 17332 | Silica Gel | £ 416,330,491 | |
| 17333 | Silk Boxers | £ 79,929,679 | |
| 17334 | Silly Sock Emporium | £ 42,691,913 | |
| 17335 | Silly Walks | £ 8,973,455 | |
| 17336 | SillyPutty | £ 39,214,929 | |
| 17337 | Silmarils Inc | £ 5,502,423 | |
| 17338 | Siloporten | £ 6,969,503 | |
| 17339 | silva | £ 36,054,742 | |
| 17340 | Silver | £ 1,180,220,963 | |
| 17341 | Silver Aftershock | £ 56,640,118 | |
| 17342 | Silver Haze | £ 320,165,501 | |
| 17343 | Silver Inc | £ 10,197,661 | |
| 17344 | Silver Plated Netrobucks | £ 169,274,529 | |
| 17345 | Silver Shamrock Inc | £ 2,317,866 | |
| 17346 | Silver Spoon Cafe | £ 47,769,163 | |
| 17347 | Silver Surfer | £ 748,792,851 | |
| 17348 | Silver Wings | £ 1,381,690,294 | |
| 17349 | Silverdale St | £ 30,471,547 | |
| 17350 | Silvermoon Enterprises | £ -214,855 | |
| 17351 | Silvertide Enterprises | £ -1,627,976 | |
| 17352 | silvra | £ 54,285,205 | |
| 17353 | Sim City3 | £ 2,672,113 | |
| 17354 | Simcoe County | £ 5,557,781 | |
| 17355 | Simon Cowells posterior | £ 240,514,908 | |
| 17356 | Simon Fraser University | £ 119,553,446 | |
| 17357 | Simon The Sprout | £ 392,953,118 | |
| 17358 | Simple | £ 199,139,466 | |
| 17359 | Simple Inc. | £ 161,992,874 | |
| 17360 | Simple Jack | £ 508,520 | |
| 17361 | Simple Things | £ 55,697,089 | |
| 17362 | simple things in life | £ -150,921 | |
| 17363 | Simpleton Co. | £ 154,696,172 | |
| 17364 | Simplicity | £ 73,991,816 | |
| 17365 | Simply Caesar | £ 95,974,460 | |
| 17366 | simply does it | £ 16,297,060 | |
| 17367 | simply nuts | £ 3,357,807 | |
| 17368 | Simply Sane Products | £ 46,396,437 | |
| 17369 | Simply Subsidiary | £ 23,554,862 | |
| 17370 | simplysouthern | £ 404,043 | |
| 17371 | Sims Company | £ 69,553,563 | |
| 17372 | Simulation | £ 4,647,866 | |
| 17373 | Sin | £ 882,690,513 | |
| 17374 | Sin City | £ 92,965,888 | |
| 17375 | Sin Co | £ 617 | |
| 17376 | Sin Industries | £ 1,511,830 | |
| 17377 | Sin Sentido | £ 253,153,436 | |
| 17378 | Sinaloa | £ 410,939,834 | |
| 17379 | Sinaloa Cartel | £ 102,795,331 | |
| 17380 | Sinar | £ 13,855,972 | |
| 17381 | Sinatra Select | £ 636,672,700 | |
| 17382 | Sinbad the sailor | £ 214,550,415 | |
| 17383 | Since Day Five | £ 2,869,478,024 | |
| 17384 | Since Day four | £ 1,567,775,829 | |
| 17385 | Since Day One | £ 2,239,230,992 | |
| 17386 | Since Day Three | £ 309,438,655 | |
| 17387 | Since Day two | £ 879,148,505 | |
| 17388 | sincity | £ 207,710,495 | |
| 17389 | Sinclair Girnigoe | £ 1,133,668,388 | |
| 17390 | Sindar | £ 5,505,299 | |
| 17391 | SINDATERA | £ 4,301,225 | |
| 17392 | Singani | £ 10,311,313,621 | |
| 17393 | Singapore | £ 453,579,334 | |
| 17394 | Singapura | £ 51,209,029 | |
| 17395 | Singh | £ 10,715,804 | |
| 17396 | singham inc | £ 10,963,284 | |
| 17397 | SinghLTD2 | £ 10,446,400 | |
| 17398 | Single Barrel | £ 988,439,929 | |
| 17399 | Single Malt | £ 16,426,947 | |
| 17400 | Single Moms | £ 76,914,652 | |
