The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 17801 | Silly Sausage | £ 654,214,927 | |
| 17802 | Silly Sock Emporium | £ 44,470,994 | |
| 17803 | Silly Walks | £ 8,973,455 | |
| 17804 | Silmarils Inc | £ 5,502,423 | |
| 17805 | Siloporten | £ 6,969,503 | |
| 17806 | silva | £ 36,054,742 | |
| 17807 | Silver | £ 1,180,220,963 | |
| 17808 | Silver Aftershock | £ 56,640,118 | |
| 17809 | Silver Haze | £ 320,165,501 | |
| 17810 | Silver Inc | £ 10,197,661 | |
| 17811 | Silver Plated Netrobucks | £ 169,274,529 | |
| 17812 | Silver Pot | £ 61,213,387 | |
| 17813 | Silver Shamrock Inc | £ 2,317,866 | |
| 17814 | Silver Spoon Cafe | £ 996,491,994 | |
| 17815 | Silver Surfer | £ 760,751,717 | |
| 17816 | Silver Wings | £ 1,381,690,294 | |
| 17817 | silvra | £ 54,285,205 | |
| 17818 | Sim City3 | £ 2,672,113 | |
| 17819 | SimCity | £ 142,894,085 | |
| 17820 | Simcoe County | £ 5,557,781 | |
| 17821 | SimEarth | £ 29,257,198 | |
| 17822 | Simon Cowells posterior | £ 240,514,908 | |
| 17823 | Simon Fraser University | £ 119,553,446 | |
| 17824 | Simon The Sprout | £ 392,953,118 | |
| 17825 | Simple | £ 199,139,466 | |
| 17826 | Simple Inc. | £ 161,992,874 | |
| 17827 | Simple Things | £ 55,697,089 | |
| 17828 | Simpleton Co. | £ 154,696,172 | |
| 17829 | Simplicity | £ 73,991,816 | |
| 17830 | Simply Caesar | £ 95,974,460 | |
| 17831 | simply does it | £ 16,297,060 | |
| 17832 | simply nuts | £ 3,357,807 | |
| 17833 | Simply Sane Products | £ 46,396,437 | |
| 17834 | Simply Subsidiary | £ 23,554,862 | |
| 17835 | Sims Company | £ 69,553,563 | |
| 17836 | Simulation | £ 4,647,866 | |
| 17837 | Sin | £ 882,690,513 | |
| 17838 | Sin City | £ 92,965,888 | |
| 17839 | Sin Industries | £ 1,511,830 | |
| 17840 | Sin Sentido | £ 253,153,436 | |
| 17841 | Sinaloa | £ 562,028,817 | |
| 17842 | Sinaloa Cartel | £ 102,795,331 | |
| 17843 | Sinar | £ 54,614,630 | |
| 17844 | Sinatra Select | £ 636,672,700 | |
| 17845 | Sinbad the sailor | £ 214,550,415 | |
| 17846 | Since 1796 | £ 1,471,127 | |
| 17847 | Since Day One | £ 2,508,586,991 | |
| 17848 | sincity | £ 207,710,495 | |
| 17849 | Sinclair | £ 35,196,158 | |
| 17850 | Sinclair Girnigoe | £ 1,133,668,388 | |
| 17851 | Sindar | £ 5,505,299 | |
| 17852 | Singani | £ 10,311,313,621 | |
| 17853 | Singapore | £ 453,579,334 | |
| 17854 | Singaporean Gang | £ 2,764,349,359 | |
| 17855 | Singapura | £ 51,209,029 | |
| 17856 | Singh | £ 10,715,804 | |
| 17857 | singham inc | £ 10,963,284 | |
| 17858 | SinghLTD2 | £ 10,446,400 | |
| 17859 | Single Barrel | £ 988,439,929 | |
| 17860 | Single Malt | £ 16,426,947 | |
| 17861 | Single Moms | £ 412,981,828 | |
| 17862 | Sinic Leccy Co | £ 477,855,468 | |
| 17863 | Sinister | £ 1,271,414 | |
| 17864 | Sinister Minister | £ 1,244,130,833 | |
| 17865 | Sink Ships | £ 269,509,457 | |
| 17866 | Sinkain INC | £ 1,959,845 | |
| 17867 | Sinking Ships | £ 81,355,767 | |
| 17868 | Sinners | £ 338,520,161 | |
| 17869 | Sino Group | £ 121,877,462 | |
| 17870 | sins | £ 1,105,930,002 | |
| 17871 | Sioux | £ 1,460,314 | |
| 17872 | sip | £ 4,947,048 | |
| 17873 | Sipral | £ 5,507,397 | |
| 17874 | sips co | £ 5,109,034 | |
| 17875 | Sir Humphry | £ 491,344,886 | |
| 17876 | sirius co.uk | £ 621,121,747 | |
| 17877 | Sister Act | £ 26,714,400 | |
| 17878 | Sisters | £ 47,242,309 | |
| 17879 | Sisyphean | £ 65,581,993 | |
| 17880 | Sisyphus | £ 5,393,053 | |
| 17881 | Sit back | £ 1,005,183,320 | |
| 17882 | Situational Ethics | £ 198,870,320 | |
| 17883 | Sitwel Ent. | £ 13,506,917 | |
| 17884 | Six More | £ 248,598,527 | |
| 17885 | Six Sigma | £ 1,002,493,306 | |
| 17886 | Sixpence None The Richer | £ 590,722,080 | |
| 17887 | Sixteen Tons | £ 16,844,742 | |
| 17888 | Sixteen Vestal Virgins | £ 121,263,981 | |
| 17889 | sixteenth sixes | £ 113,361,305 | |
| 17890 | sixth army | £ 114,993,130 | |
| 17891 | Sixty Nine | £ 341,328,441 | |
| 17892 | Sixtynine | £ 4,355,421 | |
| 17893 | Size | £ 1,820,983 | |
| 17894 | size 13s | £ 381,955,715 | |
| 17895 | SJA | £ 40,568,528 | |
| 17896 | SK1 | £ 87,390,278 | |
| 17897 | SK1 Elite | £ 120,651,100 | |
| 17898 | SK2 | £ 86,097,057 | |
| 17899 | SK3 | £ 69,708,527 | |
| 17900 | Skadegamutc | £ 102,163,417 | |
