The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 19401 | Shropshire Enterprise | £ 2,211,592 | |
| 19402 | SHU | £ 604,865,655 | |
| 19403 | Shuffle Nights | £ 5,503,006 | |
| 19404 | shut up | £ 103,351,395 | |
| 19405 | Shut Up Meg | £ 23,511,988 | |
| 19406 | Shutter nan | £ 45,525,292 | |
| 19407 | Siamese Gnats | £ 1,460,583,978 | |
| 19408 | Siberian Forest Cat | £ 1,168,577,134 | |
| 19409 | SIBF | £ 15,886,362,828 | |
| 19410 | Sicilian Holding Corp. | £ 24,703,410 | |
| 19411 | Sicily | £ 38,366,402 | |
| 19412 | Sick on a Widow | £ 145,081,811 | |
| 19413 | Sickness | £ -10,078,045 | |
| 19414 | Sickoz Company | £ 307,069,061 | |
| 19415 | sid barrat | £ 847,983,690 | |
| 19416 | Sid The Sexist | £ 11,083,450 | |
| 19417 | Sidders85 inc | £ 50,000 | |
| 19418 | Side Hustle | £ 97,734,189 | |
| 19419 | side of the tracks | £ 50,000 | |
| 19420 | Side Pony | £ 191,337,989 | |
| 19421 | SideLineD | £ 3,552,075 | |
| 19422 | Sidewinder | £ 227,297,344 | |
| 19423 | Sidewinder Missle | £ 729,192,535 | |
| 19424 | Sidney inc | £ 50,000 | |
| 19425 | Sids Emporium | £ 15,032,548 | |
| 19426 | Sieber | £ 50,000 | |
| 19427 | Sierra Leone | £ 599,717,832 | |
| 19428 | Sifosed Enterprises | £ 25,255 | |
| 19429 | Sift co | £ -137,410 | |
| 19430 | SIG Sauer | £ 51,238,462 | |
| 19431 | Sight | £ 200,734,160 | |
| 19432 | sightings | £ 41,922,596 | |
| 19433 | Sigma | £ 69,225,770 | |
| 19434 | Sigma Industries | £ 17,556 | |
| 19435 | Sigma-957 | £ 56,676,770 | |
| 19436 | Sigma-Aldrich | £ 5,008,045,282 | |
| 19437 | Sign | £ 51,894,494 | |
| 19438 | Signals | £ 451,984,370 | |
| 19439 | Silat | £ 224,852,851 | |
| 19440 | Silence | £ 22,563,076 | |
| 19441 | silent assassin | £ 1,250,769 | |
| 19442 | Silent Contractors | £ 50,000 | |
| 19443 | Silent Dance | £ 13,507,821 | |
| 19444 | Silent Echo Inc. | £ 57,693,983 | |
| 19445 | Silent Inc. | £ 286,365,315 | |
| 19446 | Silent Predator | £ -3,711,093 | |
| 19447 | Silent Stalker | £ 1,059,795 | |
| 19448 | Silent Stalkers | £ 5,382,002 | |
| 19449 | Silent Synd. | £ 4,432,208 | |
| 19450 | Silent Thoughts | £ 7,276,995 | |
| 19451 | Silent_Whisper | £ 189,456,569 | |
| 19452 | Silica Gel | £ 416,330,491 | |
| 19453 | Silk Boxers | £ 79,929,679 | |
| 19454 | Silly Sausage | £ 660,043,744 | |
| 19455 | Silly Sock Emporium | £ 46,571,438 | |
| 19456 | Silly Walks | £ 8,973,455 | |
| 19457 | Silmarils Inc | £ 5,502,423 | |
| 19458 | Siloporten | £ 6,969,503 | |
| 19459 | silva | £ 36,054,742 | |
| 19460 | Silver | £ 1,180,220,963 | |
| 19461 | Silver Aftershock | £ 56,640,118 | |
| 19462 | Silver Haze | £ 320,165,501 | |
| 19463 | Silver Inc | £ 10,197,661 | |
| 19464 | Silver Lantern | £ 50,000 | |
| 19465 | Silver Plated Netrobucks | £ 169,274,529 | |
| 19466 | Silver Pot | £ 56,577,643 | |
| 19467 | Silver Shamrock Inc | £ 2,317,866 | |
| 19468 | Silver Spoon Cafe | £ 841,991,994 | |
| 19469 | Silver Surfer | £ 761,520,342 | |
| 19470 | Silver Wings | £ 1,381,690,294 | |
| 19471 | Silvermoon Enterprises | £ -214,855 | |
| 19472 | Silvertide Enterprises | £ -1,627,976 | |
| 19473 | silvra | £ 54,285,205 | |
| 19474 | Sim City3 | £ 2,672,113 | |
| 19475 | SimCity | £ 85,428,315 | |
| 19476 | Simcoe County | £ 5,557,781 | |
| 19477 | SimEarth | £ 30,080,544 | |
| 19478 | Simon Cowells posterior | £ 240,514,908 | |
| 19479 | Simon Fraser University | £ 119,553,446 | |
| 19480 | Simon The Sprout | £ 392,953,118 | |
| 19481 | Simple | £ 199,139,466 | |
| 19482 | Simple Inc. | £ 161,992,874 | |
| 19483 | Simple Things | £ 55,697,089 | |
| 19484 | simple things in life | £ -150,921 | |
| 19485 | Simpleton Co. | £ 154,696,172 | |
| 19486 | Simplicity | £ 73,991,816 | |
| 19487 | Simply Caesar | £ 95,974,460 | |
| 19488 | simply does it | £ 16,297,060 | |
| 19489 | simply nuts | £ 3,357,807 | |
| 19490 | Simply Sane Products | £ 46,396,437 | |
| 19491 | Simply Subsidiary | £ 23,554,862 | |
| 19492 | simplysouthern | £ 404,043 | |
| 19493 | Sims Company | £ 69,553,563 | |
| 19494 | Simulation | £ 4,647,866 | |
| 19495 | Sin | £ 882,690,513 | |
| 19496 | Sin City | £ 92,965,888 | |
| 19497 | Sin Co | £ 617 | |
| 19498 | Sin Industries | £ 1,511,830 | |
| 19499 | Sin Sentido | £ 253,153,436 | |
| 19500 | Sinaloa | £ 561,718,430 | |
