The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 19401 | Sierra Leone | £ 410,822,248 | |
| 19402 | Sifosed Enterprises | £ 25,255 | |
| 19403 | Sift co | £ -137,410 | |
| 19404 | SIG Sauer | £ 51,238,462 | |
| 19405 | Sight | £ 200,734,160 | |
| 19406 | sightings | £ 41,922,596 | |
| 19407 | Sigma | £ 69,225,770 | |
| 19408 | Sigma Industries | £ 17,556 | |
| 19409 | Sigma-957 | £ 56,676,770 | |
| 19410 | Sigma-Aldrich | £ 4,720,068,682 | |
| 19411 | Sign | £ 51,894,494 | |
| 19412 | Signals | £ 437,463,196 | |
| 19413 | Silat | £ 224,852,851 | |
| 19414 | Silence | £ 22,563,076 | |
| 19415 | silent assassin | £ 1,250,769 | |
| 19416 | Silent Contractors | £ 50,000 | |
| 19417 | Silent Echo Inc. | £ 57,693,983 | |
| 19418 | Silent Inc. | £ 286,365,315 | |
| 19419 | Silent Predator | £ -3,711,093 | |
| 19420 | Silent Stalker | £ 1,059,795 | |
| 19421 | Silent Stalkers | £ 5,382,002 | |
| 19422 | Silent Synd. | £ 4,432,208 | |
| 19423 | Silent Thoughts | £ 7,276,995 | |
| 19424 | Silent_Whisper | £ 189,456,569 | |
| 19425 | Silica Gel | £ 416,330,491 | |
| 19426 | Silk Boxers | £ 79,929,679 | |
| 19427 | Silly Sausage | £ 595,824,597 | |
| 19428 | Silly Sock Emporium | £ 40,584,669 | |
| 19429 | Silly Walks | £ 8,973,455 | |
| 19430 | SillyPutty | £ 39,214,929 | |
| 19431 | Silmarils Inc | £ 5,502,423 | |
| 19432 | Siloporten | £ 6,969,503 | |
| 19433 | silva | £ 36,054,742 | |
| 19434 | Silver | £ 1,180,220,963 | |
| 19435 | Silver Aftershock | £ 56,640,118 | |
| 19436 | Silver Haze | £ 320,165,501 | |
| 19437 | Silver Inc | £ 10,197,661 | |
| 19438 | Silver Lantern | £ 50,000 | |
| 19439 | Silver Plated Netrobucks | £ 169,274,529 | |
| 19440 | Silver Pot | £ 56,464,444 | |
| 19441 | Silver Shamrock Inc | £ 2,317,866 | |
| 19442 | Silver Spoon Cafe | £ 649,991,994 | |
| 19443 | Silver Surfer | £ 761,591,461 | |
| 19444 | Silver Wings | £ 1,381,690,294 | |
| 19445 | Silverdale St | £ 30,471,547 | |
| 19446 | Silvermoon Enterprises | £ -214,855 | |
| 19447 | Silvertide Enterprises | £ -1,627,976 | |
| 19448 | silvra | £ 54,285,205 | |
| 19449 | Sim City3 | £ 2,672,113 | |
| 19450 | SimCity | £ 23,304,499 | |
| 19451 | Simcoe County | £ 5,557,781 | |
| 19452 | SimEarth | £ 10,010,124 | |
| 19453 | Simon Cowells posterior | £ 240,514,908 | |
| 19454 | Simon Fraser University | £ 119,553,446 | |
| 19455 | Simon The Sprout | £ 392,953,118 | |
| 19456 | Simple | £ 199,139,466 | |
| 19457 | Simple Inc. | £ 161,992,874 | |
| 19458 | Simple Things | £ 55,697,089 | |
| 19459 | simple things in life | £ -150,921 | |
| 19460 | Simpleton Co. | £ 154,696,172 | |
| 19461 | Simplicity | £ 73,991,816 | |
| 19462 | Simply Caesar | £ 95,974,460 | |
| 19463 | simply does it | £ 16,297,060 | |
| 19464 | simply nuts | £ 3,357,807 | |
| 19465 | Simply Sane Products | £ 46,396,437 | |
| 19466 | Simply Subsidiary | £ 23,554,862 | |
| 19467 | simplysouthern | £ 404,043 | |
| 19468 | Sims Company | £ 69,553,563 | |
| 19469 | Simulation | £ 4,647,866 | |
| 19470 | Sin | £ 882,690,513 | |
| 19471 | Sin City | £ 92,965,888 | |
| 19472 | Sin Co | £ 617 | |
| 19473 | Sin Industries | £ 1,511,830 | |
| 19474 | Sin Sentido | £ 253,153,436 | |
| 19475 | Sinaloa | £ 512,107,007 | |
| 19476 | Sinaloa Cartel | £ 102,795,331 | |
| 19477 | Sinar | £ 69,893,263 | |
| 19478 | Sinatra Select | £ 636,672,700 | |
| 19479 | Sinbad the sailor | £ 214,550,415 | |
| 19480 | Since 1796 | £ 69,471,127 | |
| 19481 | Since Day One | £ 2,313,293,302 | |
| 19482 | sincity | £ 207,710,495 | |
| 19483 | Sinclair Girnigoe | £ 1,133,668,388 | |
| 19484 | Sindar | £ 5,505,299 | |
| 19485 | SINDATERA | £ 4,301,225 | |
| 19486 | Singani | £ 10,311,313,621 | |
| 19487 | Singapore | £ 453,579,334 | |
| 19488 | Singaporean Gang | £ 1,084,049,023 | |
| 19489 | Singapura | £ 51,209,029 | |
| 19490 | Singh | £ 10,715,804 | |
| 19491 | singham inc | £ 10,963,284 | |
| 19492 | SinghLTD2 | £ 10,446,400 | |
| 19493 | Single Barrel | £ 988,439,929 | |
| 19494 | Single Malt | £ 16,426,947 | |
| 19495 | Single Moms | £ 54,179,425 | |
| 19496 | Sinic Leccy Co | £ 477,855,468 | |
| 19497 | Sinister | £ 1,271,414 | |
| 19498 | Sinister Minister | £ 1,142,982,118 | |
| 19499 | Sink Ships | £ 269,509,457 | |
| 19500 | Sinkain INC | £ 1,959,845 | |
