The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 18901 | Sidney inc | £ 50,000 | |
| 18902 | Sids Emporium | £ 15,032,548 | |
| 18903 | Sieber | £ 50,000 | |
| 18904 | Sierra Leone | £ 253,322,248 | |
| 18905 | Sifosed Enterprises | £ 25,255 | |
| 18906 | Sift co | £ -137,410 | |
| 18907 | SIG Sauer | £ 51,238,462 | |
| 18908 | Sight | £ 200,734,160 | |
| 18909 | sightings | £ 11,218,236 | |
| 18910 | Sigma | £ 69,225,770 | |
| 18911 | Sigma Industries | £ 17,556 | |
| 18912 | Sigma-957 | £ 56,676,770 | |
| 18913 | Sigma-Aldrich | £ 4,606,101,082 | |
| 18914 | Sign | £ 51,894,494 | |
| 18915 | sign my petition | £ 6,665,074 | |
| 18916 | Signals | £ 387,956,062 | |
| 18917 | Silat | £ 224,852,851 | |
| 18918 | Silence | £ 22,563,076 | |
| 18919 | silent assassin | £ 1,250,769 | |
| 18920 | Silent Contractors | £ 50,000 | |
| 18921 | Silent Echo Inc. | £ 50,745,401 | |
| 18922 | Silent Inc. | £ 286,365,315 | |
| 18923 | Silent Predator | £ -3,711,093 | |
| 18924 | Silent Stalker | £ 1,059,795 | |
| 18925 | Silent Stalkers | £ 5,382,002 | |
| 18926 | Silent Synd. | £ 4,432,208 | |
| 18927 | Silent Thoughts | £ 9,960,086 | |
| 18928 | Silent_Whisper | £ 189,456,569 | |
| 18929 | Silica Gel | £ 416,330,491 | |
| 18930 | Silk Boxers | £ 79,929,679 | |
| 18931 | Silly Sausage | £ 264,918,923 | |
| 18932 | Silly Sock Emporium | £ 28,987,827 | |
| 18933 | Silly Walks | £ 8,973,455 | |
| 18934 | SillyPutty | £ 39,214,929 | |
| 18935 | Silmarils Inc | £ 5,502,423 | |
| 18936 | Siloporten | £ 6,969,503 | |
| 18937 | silva | £ 36,054,742 | |
| 18938 | Silver | £ 1,180,220,963 | |
| 18939 | Silver Aftershock | £ 56,640,118 | |
| 18940 | Silver Haze | £ 320,165,501 | |
| 18941 | Silver Inc | £ 10,197,661 | |
| 18942 | Silver Plated Netrobucks | £ 169,274,529 | |
| 18943 | Silver Pot | £ 39,833,813 | |
| 18944 | Silver Shamrock Inc | £ 2,317,866 | |
| 18945 | Silver Spoon Cafe | £ 498,835,268 | |
| 18946 | Silver Surfer | £ 761,462,965 | |
| 18947 | Silver Wings | £ 1,381,690,294 | |
| 18948 | Silverdale St | £ 30,471,547 | |
| 18949 | Silvermoon Enterprises | £ -214,855 | |
| 18950 | Silvertide Enterprises | £ -1,627,976 | |
| 18951 | silvra | £ 54,285,205 | |
| 18952 | Sim City3 | £ 2,672,113 | |
| 18953 | Simcoe County | £ 5,557,781 | |
| 18954 | Simon Cowells posterior | £ 240,514,908 | |
| 18955 | Simon Fraser University | £ 119,553,446 | |
| 18956 | Simon The Sprout | £ 392,953,118 | |
| 18957 | Simple | £ 199,139,466 | |
| 18958 | Simple Inc. | £ 161,992,874 | |
| 18959 | Simple Things | £ 55,697,089 | |
| 18960 | simple things in life | £ -150,921 | |
| 18961 | Simpleton Co. | £ 154,696,172 | |
| 18962 | Simplicity | £ 73,991,816 | |
| 18963 | Simply Caesar | £ 95,974,460 | |
| 18964 | simply does it | £ 16,297,060 | |
| 18965 | simply nuts | £ 3,357,807 | |
| 18966 | Simply Sane Products | £ 46,396,437 | |
| 18967 | Simply Subsidiary | £ 23,554,862 | |
| 18968 | simplysouthern | £ 404,043 | |
| 18969 | Sims Company | £ 69,553,563 | |
| 18970 | Simulation | £ 4,647,866 | |
| 18971 | Sin | £ 882,690,513 | |
| 18972 | Sin City | £ 92,965,888 | |
| 18973 | Sin Co | £ 617 | |
| 18974 | Sin Industries | £ 1,511,830 | |
| 18975 | Sin Sentido | £ 253,153,436 | |
| 18976 | Sinaloa | £ 488,107,007 | |
| 18977 | Sinaloa Cartel | £ 102,795,331 | |
| 18978 | Sinar | £ 2,339,568 | |
| 18979 | Sinatra Select | £ 636,672,700 | |
| 18980 | Sinbad the sailor | £ 214,550,415 | |
| 18981 | Since 1796 | £ 180,846,942 | |
| 18982 | Since Day One | £ 2,311,003,789 | |
| 18983 | sincity | £ 207,710,495 | |
| 18984 | Sinclair Girnigoe | £ 1,133,668,388 | |
| 18985 | Sindar | £ 5,505,299 | |
| 18986 | SINDATERA | £ 4,301,225 | |
| 18987 | Singani | £ 10,311,313,621 | |
| 18988 | Singapore | £ 453,579,334 | |
| 18989 | Singaporean Gang | £ 148,049,023 | |
| 18990 | Singapura | £ 51,209,029 | |
| 18991 | Singh | £ 10,715,804 | |
| 18992 | singham inc | £ 10,963,284 | |
| 18993 | SinghLTD2 | £ 10,446,400 | |
| 18994 | Single Barrel | £ 988,439,929 | |
| 18995 | Single Malt | £ 16,426,947 | |
| 18996 | Single Moms | £ 37,094,715 | |
| 18997 | Sinic Leccy Co | £ 477,855,468 | |
| 18998 | Sinister | £ 1,271,414 | |
| 18999 | Sinister Minister | £ 1,143,665,419 | |
| 19000 | Sink Ships | £ 269,509,457 | |
