The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 14701 | Sicily | £ 38,366,402 | |
| 14702 | Sick | £ 44,661,349 | |
| 14703 | Sick on a Widow | £ 145,081,811 | |
| 14704 | Sickness | £ -10,078,045 | |
| 14705 | Sickoz Company | £ 686,709,634 | |
| 14706 | Sid The Sexist | £ 11,083,450 | |
| 14707 | Sidders85 inc | £ 50,000 | |
| 14708 | Side Pony | £ 191,337,989 | |
| 14709 | SideLineD | £ 3,552,075 | |
| 14710 | Sidewinder | £ 144,197,344 | |
| 14711 | Sidney inc | £ 50,000 | |
| 14712 | Sids Emporium | £ 15,032,548 | |
| 14713 | Sieber | £ 50,000 | |
| 14714 | Sifosed Enterprises | £ 25,255 | |
| 14715 | Sift co | £ -137,410 | |
| 14716 | Sighs | £ 9,874,626 | |
| 14717 | Sight | £ 200,734,160 | |
| 14718 | Sigma Industries | £ 17,556 | |
| 14719 | Sigma-957 | £ 56,676,770 | |
| 14720 | Sigma-Aldrich | £ 9,845,479 | |
| 14721 | Sign | £ 51,894,494 | |
| 14722 | Silat | £ 73,630,841 | |
| 14723 | Silence | £ 16,416,492 | |
| 14724 | silent assassin | £ 1,250,769 | |
| 14725 | Silent Inc. | £ 286,365,315 | |
| 14726 | Silent Stalker | £ 1,059,795 | |
| 14727 | Silent_Whisper | £ 189,456,569 | |
| 14728 | Silica Gel | £ 416,330,491 | |
| 14729 | Silk Boxers | £ 79,929,679 | |
| 14730 | Silly Walks | £ 8,973,455 | |
| 14731 | SillyPutty | £ 39,214,929 | |
| 14732 | Siloporten | £ 6,969,503 | |
| 14733 | silva | £ 36,054,742 | |
| 14734 | Silver | £ 1,180,244,063 | |
| 14735 | Silver Aftershock | £ 56,640,118 | |
| 14736 | Silver Fox Inc | £ 2,634,600 | |
| 14737 | Silver Haze | £ 316,046,956 | |
| 14738 | Silver Inc | £ 10,197,661 | |
| 14739 | Silver Plated Netrobucks | £ 170,809,435 | |
| 14740 | Silver Shamrock Inc | £ 2,317,866 | |
| 14741 | Silver Surfer | £ 297,766,970 | |
| 14742 | Silver Wings | £ 1,381,690,294 | |
| 14743 | Silverdale St | £ 30,471,547 | |
| 14744 | Silvermoon Enterprises | £ -214,855 | |
| 14745 | Silvertide Enterprises | £ -1,627,976 | |
| 14746 | silvra | £ 54,285,205 | |
| 14747 | Sim City3 | £ 2,672,113 | |
| 14748 | Simon Cowells posterior | £ 240,514,908 | |
| 14749 | Simon Fraser University | £ 119,553,446 | |
| 14750 | Simon The Sprout | £ 204,343,544 | |
| 14751 | Simple | £ 199,139,466 | |
| 14752 | Simple Inc. | £ 161,992,874 | |
| 14753 | Simple Things | £ 55,697,089 | |
| 14754 | simple things in life | £ -150,921 | |
| 14755 | SimpleS | £ 45,372,564 | |
| 14756 | Simpleton Co. | £ 154,696,172 | |
| 14757 | Simplicity | £ 73,991,816 | |
| 14758 | simply does it | £ 16,297,060 | |
| 14759 | simply nuts | £ 3,357,807 | |
| 14760 | Simply Sane Products | £ 46,396,437 | |
| 14761 | simplysouthern | £ 404,043 | |
| 14762 | Simulation | £ 4,647,866 | |
| 14763 | Sin | £ 882,690,513 | |
| 14764 | Sin City | £ 62,000,387 | |
| 14765 | Sin Co | £ 617 | |
| 14766 | Sin Sentido | £ 253,153,436 | |
| 14767 | Sinaloa | £ 176,462,577 | |
| 14768 | Sinatra Select | £ 361,569,082 | |
| 14769 | Sinbad the sailor | £ 214,550,415 | |
| 14770 | Since Day 1 | £ 61,665,725 | |
| 14771 | Since Day Five | £ 468,135,740 | |
| 14772 | Since Day four | £ 940,712,673 | |
| 14773 | Since Day One | £ 607,527,284 | |
| 14774 | Since Day Three | £ 243,188,209 | |
| 14775 | Since Day two | £ 329,886,063 | |
| 14776 | sincity | £ 207,710,495 | |
| 14777 | Sinclair Girnigoe | £ 1,133,668,388 | |
| 14778 | Sindar | £ 5,505,299 | |
| 14779 | Singani | £ 10,311,068,262 | |
| 14780 | Singapore | £ 453,579,334 | |
| 14781 | Singapore Garden | £ 640,295,276 | |
| 14782 | singham inc | £ 10,963,284 | |
| 14783 | SinghLTD2 | £ 10,446,400 | |
| 14784 | Single Barrel | £ 747,236,932 | |
| 14785 | Single Malt | £ 16,426,947 | |
| 14786 | Single Moms | £ 244,990,065 | |
| 14787 | Sinic Leccy Co | £ 477,855,468 | |
| 14788 | Sinister | £ 1,271,414 | |
| 14789 | Sink | £ 2,232,154 | |
| 14790 | Sink Ships | £ 269,509,457 | |
| 14791 | Sinkain INC | £ 1,929,856 | |
| 14792 | Sinking Ships | £ 81,355,767 | |
| 14793 | sins | £ 1,098,815,897 | |
| 14794 | sinsinattee | £ 77,807 | |
| 14795 | Sion | £ 45,276,606 | |
| 14796 | sip | £ 4,947,048 | |
| 14797 | SIPAPIAS | £ -5,901,721 | |
| 14798 | Sipledome | £ -8,748,379 | |
| 14799 | sips co | £ 5,109,034 | |
| 14800 | Siren | £ 17,058,704 | |
