The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 13801 | Shropshire Enterprise | £ 2,211,592 | |
| 13802 | SHU | £ 161,231,729 | |
| 13803 | Shuffle Nights | £ 5,503,006 | |
| 13804 | shut up | £ 103,351,395 | |
| 13805 | Shut Up Meg | £ 23,511,988 | |
| 13806 | Shutting up shop | £ 44,690,066 | |
| 13807 | Siamese Gnats | £ 1,460,583,978 | |
| 13808 | SIBF | £ 5,489,582,476 | |
| 13809 | Sic | £ 66,580,471 | |
| 13810 | Sicilian Holding Corp. | £ 24,703,410 | |
| 13811 | Sicily | £ 38,366,402 | |
| 13812 | Sick | £ 44,661,349 | |
| 13813 | Sick on a Widow | £ 145,081,811 | |
| 13814 | Sickness | £ -10,078,045 | |
| 13815 | Sickoz Company | £ 686,709,634 | |
| 13816 | Sid The Sexist | £ 11,083,450 | |
| 13817 | Sidders85 inc | £ 50,000 | |
| 13818 | Side Pony | £ 191,337,989 | |
| 13819 | SideLineD | £ 3,552,075 | |
| 13820 | Sidney inc | £ 50,000 | |
| 13821 | Sids Emporium | £ 15,032,548 | |
| 13822 | Sieber | £ 50,000 | |
| 13823 | Sifosed Enterprises | £ 25,255 | |
| 13824 | Sift co | £ -137,410 | |
| 13825 | Sighs | £ 9,874,626 | |
| 13826 | Sight | £ 200,734,160 | |
| 13827 | Sigma Industries | £ 17,556 | |
| 13828 | Sigma-957 | £ 56,676,770 | |
| 13829 | Sigma-Aldrich | £ 5,710,426 | |
| 13830 | Sign | £ 51,894,494 | |
| 13831 | Silat | £ 73,630,841 | |
| 13832 | Silence | £ 86,597,377 | |
| 13833 | silent assassin | £ 1,250,769 | |
| 13834 | Silent Inc. | £ 286,365,315 | |
| 13835 | Silent Stalker | £ 1,059,795 | |
| 13836 | Silent_Whisper | £ 143,138,744 | |
| 13837 | Silica Gel | £ 416,330,491 | |
| 13838 | Silk Boxers | £ 79,929,679 | |
| 13839 | Silly Walks | £ 8,973,455 | |
| 13840 | SillyPutty | £ 39,214,929 | |
| 13841 | Siloporten | £ 6,969,503 | |
| 13842 | silva | £ 36,054,742 | |
| 13843 | Silver | £ 1,180,244,063 | |
| 13844 | Silver Aftershock | £ 56,640,118 | |
| 13845 | Silver Fox Inc | £ 2,634,600 | |
| 13846 | Silver Haze | £ 56,653,264 | |
| 13847 | Silver Inc | £ 10,197,661 | |
| 13848 | Silver Shamrock Inc | £ 2,317,866 | |
| 13849 | Silver Surfer | £ 1,255,216 | |
| 13850 | Silver Wings | £ 1,401,313,702 | |
| 13851 | Silverdale St | £ 30,471,547 | |
| 13852 | Silvermoon Enterprises | £ -214,855 | |
| 13853 | Silvertide Enterprises | £ -1,627,976 | |
| 13854 | silvra | £ 54,285,205 | |
| 13855 | Sim City3 | £ 2,672,113 | |
| 13856 | Simon Cowells posterior | £ 240,514,908 | |
| 13857 | Simon Fraser University | £ 119,553,446 | |
| 13858 | Simple | £ 168,297,238 | |
| 13859 | Simple Inc. | £ 161,992,874 | |
| 13860 | simple things in life | £ -150,921 | |
| 13861 | SimpleS | £ 45,372,564 | |
| 13862 | Simpleton Co. | £ 154,696,172 | |
| 13863 | Simplicity | £ 73,991,816 | |
| 13864 | simply does it | £ 16,297,060 | |
| 13865 | simply nuts | £ 3,357,807 | |
| 13866 | Simply Sane Products | £ 46,396,437 | |
| 13867 | simplysouthern | £ 404,043 | |
| 13868 | Simulation | £ 4,647,866 | |
| 13869 | Sin | £ 335,834,313 | |
| 13870 | Sin City | £ 62,000,387 | |
| 13871 | Sin Co | £ 617 | |
| 13872 | Sin Sentido | £ 263,556,363 | |
| 13873 | Sinaloa | £ 233,600,364 | |
| 13874 | Sinatra Select | £ 361,569,082 | |
| 13875 | Sinbad the sailor | £ 88,532,251 | |
| 13876 | Since Day 1 | £ 61,665,725 | |
| 13877 | Since Day Five | £ 235,918,898 | |
| 13878 | Since Day four | £ 244,597,819 | |
| 13879 | Since Day One | £ 249,284,083 | |
| 13880 | Since Day Three | £ 118,954,098 | |
| 13881 | Since Day two | £ 160,384,357 | |
| 13882 | sincity | £ 207,710,495 | |
| 13883 | Sinclair Girnigoe | £ 52,471,065 | |
| 13884 | Sindar | £ 5,505,299 | |
| 13885 | Singani | £ 9,307,649,995 | |
| 13886 | Singapore | £ 453,579,334 | |
| 13887 | Singapore Garden | £ 432,350,067 | |
| 13888 | singham inc | £ 10,963,284 | |
| 13889 | SinghLTD2 | £ 10,446,400 | |
| 13890 | Single Barrel | £ 747,236,932 | |
| 13891 | Single Malt | £ 16,426,947 | |
| 13892 | Single Moms | £ 188,094,526 | |
| 13893 | Sinic Leccy Co | £ 477,855,468 | |
| 13894 | Sinister | £ 1,271,414 | |
| 13895 | Sink | £ 2,232,154 | |
| 13896 | Sink Ships | £ 269,509,457 | |
| 13897 | Sinkain INC | £ 1,929,856 | |
| 13898 | Sinking Ships | £ 81,355,767 | |
| 13899 | Sinners Delight | £ 8,293,268 | |
| 13900 | sins | £ 1,096,636,539 | |
