The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 16001 | SHU | £ 584,231,729 | |
| 16002 | Shuffle Nights | £ 5,503,006 | |
| 16003 | shut up | £ 103,351,395 | |
| 16004 | Shut Up Meg | £ 23,511,988 | |
| 16005 | Shutting up shop | £ 44,690,066 | |
| 16006 | Siamese Gnats | £ 1,460,583,978 | |
| 16007 | Siberian Forest Cat | £ 118,728,278 | |
| 16008 | SIBF | £ 9,651,789,161 | |
| 16009 | Sic | £ 87,406,897 | |
| 16010 | Sicario | £ 56,880,872 | |
| 16011 | Sicilian Holding Corp. | £ 24,703,410 | |
| 16012 | Sicily | £ 38,366,402 | |
| 16013 | Sick | £ 44,661,349 | |
| 16014 | Sick on a Widow | £ 145,081,811 | |
| 16015 | Sickness | £ -10,078,045 | |
| 16016 | Sickoz Company | £ 776,372,485 | |
| 16017 | sid | £ 116,772,505 | |
| 16018 | Sid The Sexist | £ 11,083,450 | |
| 16019 | Sidders85 inc | £ 50,000 | |
| 16020 | Side Pony | £ 191,337,989 | |
| 16021 | SideLineD | £ 3,552,075 | |
| 16022 | Sidewinder | £ 207,797,344 | |
| 16023 | Sidney inc | £ 50,000 | |
| 16024 | Sids Emporium | £ 15,032,548 | |
| 16025 | Sieber | £ 50,000 | |
| 16026 | Sifosed Enterprises | £ 25,255 | |
| 16027 | Sift co | £ -137,410 | |
| 16028 | Sighs | £ 9,874,626 | |
| 16029 | Sight | £ 200,734,160 | |
| 16030 | Sigma Industries | £ 17,556 | |
| 16031 | Sigma-957 | £ 56,676,770 | |
| 16032 | Sigma-Aldrich | £ 9,845,479 | |
| 16033 | Sign | £ 51,894,494 | |
| 16034 | Signals | £ 24,462,144 | |
| 16035 | Silat | £ 126,598,241 | |
| 16036 | Silence | £ 38,301,415 | |
| 16037 | silent assassin | £ 1,250,769 | |
| 16038 | Silent Inc. | £ 286,365,315 | |
| 16039 | Silent Stalker | £ 1,059,795 | |
| 16040 | Silent Witness | £ 98,099,872 | |
| 16041 | Silent_Whisper | £ 189,456,569 | |
| 16042 | Silica Gel | £ 416,330,491 | |
| 16043 | Silicon Valley | £ 49,851,976 | |
| 16044 | Silk Boxers | £ 79,929,679 | |
| 16045 | Silly Walks | £ 8,973,455 | |
| 16046 | SillyPutty | £ 39,214,929 | |
| 16047 | Siloporten | £ 6,969,503 | |
| 16048 | silva | £ 36,054,742 | |
| 16049 | Silver | £ 1,180,244,063 | |
| 16050 | Silver Aftershock | £ 56,640,118 | |
| 16051 | Silver Haze | £ 286,306,148 | |
| 16052 | Silver Inc | £ 10,197,661 | |
| 16053 | Silver Plated Netrobucks | £ 168,199,969 | |
| 16054 | Silver Shamrock Inc | £ 2,317,866 | |
| 16055 | Silver Surfer | £ 589,133,030 | |
| 16056 | Silver Wings | £ 1,381,690,294 | |
| 16057 | Silverdale St | £ 30,471,547 | |
| 16058 | Silvermoon Enterprises | £ -214,855 | |
| 16059 | Silvertide Enterprises | £ -1,627,976 | |
| 16060 | silvra | £ 54,285,205 | |
| 16061 | Sim City3 | £ 2,672,113 | |
| 16062 | Simon Cowells posterior | £ 240,514,908 | |
| 16063 | Simon Fraser University | £ 119,553,446 | |
| 16064 | Simon The Sprout | £ 180,100,078 | |
| 16065 | Simple | £ 199,139,466 | |
| 16066 | Simple Inc. | £ 161,992,874 | |
| 16067 | Simple Things | £ 55,697,089 | |
| 16068 | simple things in life | £ -150,921 | |
| 16069 | SimpleS | £ 45,372,564 | |
| 16070 | Simpleton Co. | £ 154,696,172 | |
| 16071 | Simplicity | £ 73,991,816 | |
| 16072 | simply does it | £ 16,297,060 | |
| 16073 | simply nuts | £ 3,357,807 | |
| 16074 | Simply Sane Products | £ 46,396,437 | |
| 16075 | simplysouthern | £ 404,043 | |
| 16076 | Simulation | £ 4,647,866 | |
| 16077 | Sin | £ 882,690,513 | |
| 16078 | Sin City | £ 92,965,888 | |
| 16079 | Sin Co | £ 617 | |
| 16080 | Sin Sentido | £ 253,153,436 | |
| 16081 | Sinaloa | £ 257,800,989 | |
| 16082 | Sinatra Select | £ 636,672,700 | |
| 16083 | Sinbad the sailor | £ 214,550,415 | |
| 16084 | Since Day 1 | £ 61,665,725 | |
| 16085 | Since Day Five | £ 1,206,221,697 | |
| 16086 | Since Day four | £ 1,253,583,560 | |
| 16087 | Since Day One | £ 659,911,378 | |
| 16088 | Since Day Three | £ 310,828,290 | |
| 16089 | Since Day two | £ 387,020,148 | |
| 16090 | sincity | £ 207,710,495 | |
| 16091 | Sinclair Girnigoe | £ 1,133,668,388 | |
| 16092 | Sindar | £ 5,505,299 | |
| 16093 | Sine Nomine | £ 38,818,253 | |
| 16094 | Singani | £ 10,311,068,262 | |
| 16095 | Singapore | £ 453,579,334 | |
| 16096 | Singapore Garden | £ 613,637,717 | |
| 16097 | singham inc | £ 10,963,284 | |
| 16098 | SinghLTD2 | £ 10,446,400 | |
| 16099 | Single Barrel | £ 988,439,929 | |
| 16100 | Single Malt | £ 16,426,947 | |
