The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 19401 | Sid The Sexist | £ 11,083,450 | |
| 19402 | Sidders85 inc | £ 50,000 | |
| 19403 | Side Hustle | £ 97,734,189 | |
| 19404 | side of the tracks | £ 50,000 | |
| 19405 | Side Pony | £ 191,337,989 | |
| 19406 | SideLineD | £ 3,552,075 | |
| 19407 | Sidewinder | £ 227,297,344 | |
| 19408 | Sidewinder Missle | £ 521,213,398 | |
| 19409 | Sidney inc | £ 50,000 | |
| 19410 | Sids Emporium | £ 15,032,548 | |
| 19411 | Sieber | £ 50,000 | |
| 19412 | Sierra Leone | £ 418,322,248 | |
| 19413 | Sifosed Enterprises | £ 25,255 | |
| 19414 | Sift co | £ -137,410 | |
| 19415 | SIG Sauer | £ 51,238,462 | |
| 19416 | Sight | £ 200,734,160 | |
| 19417 | sightings | £ 41,922,596 | |
| 19418 | Sigma | £ 69,225,770 | |
| 19419 | Sigma Industries | £ 17,556 | |
| 19420 | Sigma-957 | £ 56,676,770 | |
| 19421 | Sigma-Aldrich | £ 4,732,068,682 | |
| 19422 | Sign | £ 51,894,494 | |
| 19423 | Signals | £ 437,463,196 | |
| 19424 | Silat | £ 224,852,851 | |
| 19425 | Silence | £ 22,563,076 | |
| 19426 | silent assassin | £ 1,250,769 | |
| 19427 | Silent Contractors | £ 50,000 | |
| 19428 | Silent Echo Inc. | £ 57,693,983 | |
| 19429 | Silent Inc. | £ 286,365,315 | |
| 19430 | Silent Predator | £ -3,711,093 | |
| 19431 | Silent Stalker | £ 1,059,795 | |
| 19432 | Silent Stalkers | £ 5,382,002 | |
| 19433 | Silent Synd. | £ 4,432,208 | |
| 19434 | Silent Thoughts | £ 7,276,995 | |
| 19435 | Silent_Whisper | £ 189,456,569 | |
| 19436 | Silica Gel | £ 416,330,491 | |
| 19437 | Silk Boxers | £ 79,929,679 | |
| 19438 | Silly Sausage | £ 597,287,925 | |
| 19439 | Silly Sock Emporium | £ 46,402,627 | |
| 19440 | Silly Walks | £ 8,973,455 | |
| 19441 | SillyPutty | £ 39,214,929 | |
| 19442 | Silmarils Inc | £ 5,502,423 | |
| 19443 | Siloporten | £ 6,969,503 | |
| 19444 | silva | £ 36,054,742 | |
| 19445 | Silver | £ 1,180,220,963 | |
| 19446 | Silver Aftershock | £ 56,640,118 | |
| 19447 | Silver Haze | £ 320,165,501 | |
| 19448 | Silver Inc | £ 10,197,661 | |
| 19449 | Silver Lantern | £ 50,000 | |
| 19450 | Silver Plated Netrobucks | £ 169,274,529 | |
| 19451 | Silver Pot | £ 60,626,314 | |
| 19452 | Silver Shamrock Inc | £ 2,317,866 | |
| 19453 | Silver Spoon Cafe | £ 657,491,994 | |
| 19454 | Silver Surfer | £ 762,210,786 | |
| 19455 | Silver Wings | £ 1,381,690,294 | |
| 19456 | Silverdale St | £ 30,471,547 | |
| 19457 | Silvermoon Enterprises | £ -214,855 | |
| 19458 | Silvertide Enterprises | £ -1,627,976 | |
| 19459 | silvra | £ 54,285,205 | |
| 19460 | Sim City3 | £ 2,672,113 | |
| 19461 | SimCity | £ 26,660,685 | |
| 19462 | Simcoe County | £ 5,557,781 | |
| 19463 | SimEarth | £ 19,010,124 | |
| 19464 | Simon Cowells posterior | £ 240,514,908 | |
| 19465 | Simon Fraser University | £ 119,553,446 | |
| 19466 | Simon The Sprout | £ 392,953,118 | |
| 19467 | Simple | £ 199,139,466 | |
| 19468 | Simple Inc. | £ 161,992,874 | |
| 19469 | Simple Things | £ 55,697,089 | |
| 19470 | simple things in life | £ -150,921 | |
| 19471 | Simpleton Co. | £ 154,696,172 | |
| 19472 | Simplicity | £ 73,991,816 | |
| 19473 | Simply Caesar | £ 95,974,460 | |
| 19474 | simply does it | £ 16,297,060 | |
| 19475 | simply nuts | £ 3,357,807 | |
| 19476 | Simply Sane Products | £ 46,396,437 | |
| 19477 | Simply Subsidiary | £ 23,554,862 | |
| 19478 | simplysouthern | £ 404,043 | |
| 19479 | Sims Company | £ 69,553,563 | |
| 19480 | Simulation | £ 4,647,866 | |
| 19481 | Sin | £ 882,690,513 | |
| 19482 | Sin City | £ 92,965,888 | |
| 19483 | Sin Co | £ 617 | |
| 19484 | Sin Industries | £ 1,511,830 | |
| 19485 | Sin Sentido | £ 253,153,436 | |
| 19486 | Sinaloa | £ 512,107,007 | |
| 19487 | Sinaloa Cartel | £ 102,795,331 | |
| 19488 | Sinar | £ 87,893,263 | |
| 19489 | Sinatra Select | £ 636,672,700 | |
| 19490 | Sinbad the sailor | £ 214,550,415 | |
| 19491 | Since 1796 | £ 69,471,127 | |
| 19492 | Since Day One | £ 2,313,293,302 | |
| 19493 | sincity | £ 207,710,495 | |
| 19494 | Sinclair Girnigoe | £ 1,133,668,388 | |
| 19495 | Sindar | £ 5,505,299 | |
| 19496 | SINDATERA | £ 4,301,225 | |
| 19497 | Singani | £ 10,311,313,621 | |
| 19498 | Singapore | £ 453,579,334 | |
| 19499 | Singaporean Gang | £ 1,120,049,023 | |
| 19500 | Singapura | £ 51,209,029 | |
