The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 14901 | Sidders85 inc | £ 50,000 | |
| 14902 | Side Pony | £ 191,337,989 | |
| 14903 | SideLineD | £ 3,552,075 | |
| 14904 | Sidewinder | £ 207,797,344 | |
| 14905 | Sidney inc | £ 50,000 | |
| 14906 | Sids Emporium | £ 15,032,548 | |
| 14907 | Sieber | £ 50,000 | |
| 14908 | Sifosed Enterprises | £ 25,255 | |
| 14909 | Sift co | £ -137,410 | |
| 14910 | Sighs | £ 9,874,626 | |
| 14911 | Sight | £ 200,734,160 | |
| 14912 | Sigma Industries | £ 17,556 | |
| 14913 | Sigma-957 | £ 56,676,770 | |
| 14914 | Sigma-Aldrich | £ 9,845,479 | |
| 14915 | Sign | £ 51,894,494 | |
| 14916 | Silat | £ 117,825,218 | |
| 14917 | Silence | £ 35,433,391 | |
| 14918 | silent assassin | £ 1,250,769 | |
| 14919 | Silent Inc. | £ 286,365,315 | |
| 14920 | Silent Stalker | £ 1,059,795 | |
| 14921 | Silent_Whisper | £ 189,456,569 | |
| 14922 | Silica Gel | £ 416,330,491 | |
| 14923 | Silk Boxers | £ 79,929,679 | |
| 14924 | Silly Walks | £ 8,973,455 | |
| 14925 | SillyPutty | £ 39,214,929 | |
| 14926 | Siloporten | £ 6,969,503 | |
| 14927 | silva | £ 36,054,742 | |
| 14928 | Silver | £ 1,180,244,063 | |
| 14929 | Silver Aftershock | £ 56,640,118 | |
| 14930 | Silver Haze | £ 286,306,148 | |
| 14931 | Silver Inc | £ 10,197,661 | |
| 14932 | Silver Plated Netrobucks | £ 151,751,413 | |
| 14933 | Silver Shamrock Inc | £ 2,317,866 | |
| 14934 | Silver Surfer | £ 418,966,079 | |
| 14935 | Silver Wings | £ 1,381,690,294 | |
| 14936 | Silverdale St | £ 30,471,547 | |
| 14937 | Silvermoon Enterprises | £ -214,855 | |
| 14938 | Silvertide Enterprises | £ -1,627,976 | |
| 14939 | silvra | £ 54,285,205 | |
| 14940 | Sim City3 | £ 2,672,113 | |
| 14941 | Simon Cowells posterior | £ 240,514,908 | |
| 14942 | Simon Fraser University | £ 119,553,446 | |
| 14943 | Simon The Sprout | £ 314,764,740 | |
| 14944 | Simple | £ 199,139,466 | |
| 14945 | Simple Inc. | £ 161,992,874 | |
| 14946 | Simple Things | £ 55,697,089 | |
| 14947 | simple things in life | £ -150,921 | |
| 14948 | SimpleS | £ 45,372,564 | |
| 14949 | Simpleton Co. | £ 154,696,172 | |
| 14950 | Simplicity | £ 73,991,816 | |
| 14951 | simply does it | £ 16,297,060 | |
| 14952 | simply nuts | £ 3,357,807 | |
| 14953 | Simply Sane Products | £ 46,396,437 | |
| 14954 | simplysouthern | £ 404,043 | |
| 14955 | Simulation | £ 4,647,866 | |
| 14956 | Sin | £ 882,690,513 | |
| 14957 | Sin City | £ 62,000,387 | |
| 14958 | Sin Co | £ 617 | |
| 14959 | Sin Sentido | £ 253,153,436 | |
| 14960 | Sinaloa | £ 197,462,577 | |
| 14961 | Sinatra Select | £ 361,569,082 | |
| 14962 | Sinbad the sailor | £ 214,550,415 | |
| 14963 | Since Day 1 | £ 61,665,725 | |
| 14964 | Since Day Five | £ 558,135,740 | |
| 14965 | Since Day four | £ 1,016,769,307 | |
| 14966 | Since Day One | £ 628,571,381 | |
| 14967 | Since Day Three | £ 249,188,209 | |
| 14968 | Since Day two | £ 383,761,329 | |
| 14969 | sincity | £ 207,710,495 | |
| 14970 | Sinclair Girnigoe | £ 1,133,668,388 | |
| 14971 | Sindar | £ 5,505,299 | |
| 14972 | Singani | £ 10,311,068,262 | |
| 14973 | Singapore | £ 453,579,334 | |
| 14974 | Singapore Garden | £ 645,451,437 | |
| 14975 | singham inc | £ 10,963,284 | |
| 14976 | SinghLTD2 | £ 10,446,400 | |
| 14977 | Single Barrel | £ 747,236,932 | |
| 14978 | Single Malt | £ 16,426,947 | |
| 14979 | Single Moms | £ 298,207,804 | |
| 14980 | Sinic Leccy Co | £ 477,855,468 | |
| 14981 | Sinister | £ 1,271,414 | |
| 14982 | Sink | £ 2,232,154 | |
| 14983 | Sink Ships | £ 269,509,457 | |
| 14984 | Sinkain INC | £ 1,929,856 | |
| 14985 | Sinking Ships | £ 81,355,767 | |
| 14986 | sins | £ 1,096,935,680 | |
| 14987 | sinsinattee | £ 77,807 | |
| 14988 | Sion | £ 45,276,606 | |
| 14989 | sip | £ 4,947,048 | |
| 14990 | SIPAPIAS | £ -5,901,721 | |
| 14991 | Sipledome | £ -8,748,379 | |
| 14992 | sips co | £ 5,109,034 | |
| 14993 | Siren | £ 17,058,704 | |
| 14994 | sister | £ 285,628,993 | |
| 14995 | Sisters | £ 47,242,309 | |
| 14996 | Sisyphean | £ 48,163,924 | |
| 14997 | Sithis | £ 235,713 | |
| 14998 | Sitwel Ent. | £ 8,334,708 | |
| 14999 | Six Feet Under Ltd | £ -1,091,275 | |
| 15000 | Six More | £ 248,598,527 | |
