The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 16001 | Obar Ardair | £ 387,490,277 | |
| 16002 | Obble | £ 466,184,526 | |
| 16003 | obedience | £ 481,024,448 | |
| 16004 | Obese American | £ 161,429,557 | |
| 16005 | Obi-Wan Kenobi | £ 1,614,845,855 | |
| 16006 | Obi-Wan-Kenobi | £ 100,953,209 | |
| 16007 | Object in Motion | £ 106,865,438 | |
| 16008 | Objective Reality | £ 5,693,910 | |
| 16009 | Obliteration | £ 365,321,448 | |
| 16010 | Obliteration Is Coming | £ 98,477,916 | |
| 16011 | Obliterator | £ 5,501,753 | |
| 16012 | Oblivion | £ 75,985,020 | |
| 16013 | Oblivious | £ 5,503,920 | |
| 16014 | Obsession | £ 4,141,059 | |
| 16015 | Obsidian | £ 5,952,122 | |
| 16016 | Obsidian Destroyer | £ 5,567,314 | |
| 16017 | Obsolete | £ 55,457,606 | |
| 16018 | Obtuse | £ 14,379,095 | |
| 16019 | ObusPrimeLLC | £ 331,884 | |
| 16020 | Obviously | £ 2,318,576,665 | |
| 16021 | Ocarina of Time | £ -1,574,201 | |
| 16022 | OCB inc | £ 6,320,804 | |
| 16023 | Occasional Tables | £ 5,328,203 | |
| 16024 | Ocean | £ 52,827,866 | |
| 16025 | Ocean Beach Club | £ 1,209,642,813 | |
| 16026 | Ocean Defence | £ 406,644,659 | |
| 16027 | ocean star | £ 3,580,849,318 | |
| 16028 | Oceanic Enterprises | £ -50,808 | |
| 16029 | Oceans 11 | £ 58,500,636 | |
| 16030 | Oceans 12 | £ 10,291,638 | |
| 16031 | Oceans 13 | £ 132,219,759 | |
| 16032 | Oceans Eleven | £ 8,485,684 | |
| 16033 | Ocelot | £ 194,460,230 | |
| 16034 | Och Noooo | £ 1,506,119 | |
| 16035 | Octavian | £ 4,631,188 | |
| 16036 | October 1066 | £ 81,732,927 | |
| 16037 | October 1854 | £ 290,795,624 | |
| 16038 | October 2014 | £ 94,385,046 | |
| 16039 | Octopia | £ 9,626,521 | |
| 16040 | Octopus Garden | £ 4,050,927 | |
| 16041 | Odd Things | £ 10,973,073 | |
| 16042 | Oddjob | £ 16,604,273 | |
| 16043 | Odds and ends | £ 158,008,350 | |
| 16044 | Odds on Favorite | £ 74,346,727 | |
| 16045 | Oddysay | £ 2,896,867 | |
| 16046 | Oden | £ 641,394,649 | |
| 16047 | oden wrath | £ 1,735,842,850 | |
| 16048 | odin | £ 8,811,968 | |
| 16049 | Odin Mafia | £ 8,768,668 | |
| 16050 | Odin the Wanderer | £ 4,687,105 | |
| 16051 | Odo | £ 32,513,900 | |
| 16052 | Odqan | £ 188,512,804 | |
| 16053 | Odyssey | £ 334,944,633 | |
| 16054 | of a black widow | £ 196,069,515 | |
| 16055 | Of a Brutal Empire | £ 36,359,377 | |
| 16056 | of a Solar Empire | £ 46,660,163 | |
| 16057 | Of A Time | £ 27,824,181 | |
| 16058 | Of All Your Land | £ 48,121,892 | |
| 16059 | of Belfast | £ 57,222,990 | |
| 16060 | Of Bomb | £ 5,131,350 | |
| 16061 | of CFC | £ 5,455,120 | |
| 16062 | Of Every Position | £ 61,887,884 | |
| 16063 | Of Friday the 13th | £ 50,000 | |
| 16064 | of Impendium | £ 349,441 | |
| 16065 | Of My Label | £ 367,377,610 | |
| 16066 | of my secrets | £ 261,974,028 | |
| 16067 | of of | £ 7,075,463 | |
| 16068 | of of of of of of of of | £ 50,000 | |
| 16069 | of REASON | £ 1,154,429 | |
| 16070 | of RHC | £ 68,042,901 | |
| 16071 | Of Scotland | £ 1,304,795,018 | |
| 16072 | Of The Boards | £ 14,794,127 | |
| 16073 | of the devil | £ 27,539,344 | |
| 16074 | of The Hat | £ 5,507,097 | |
| 16075 | of the heap | £ 66,771,581 | |
| 16076 | of the lost | £ 69,257,675 | |
| 16077 | of the monsters | £ 41,126,098 | |
| 16078 | Of The Road | £ 146,979,140 | |
| 16079 | of the runite | £ 4,694,589 | |
| 16080 | Of The UVF | £ 133,321,393 | |
| 16081 | Of the world | £ 2,007,785 | |
| 16082 | of. | £ 335,457,109 | |
| 16083 | Ofcom | £ 306,858,410 | |
| 16084 | Off | £ 30,591,786 | |
| 16085 | Off His Trolly | £ 10,806,044 | |
| 16086 | off it | £ 5,261,275 | |
| 16087 | Offenbach | £ 382,674,581 | |
| 16088 | Offender | £ 159,520,331 | |
| 16089 | Offensive Behaviour | £ 509,861,247 | |
| 16090 | Offensive Security | £ 215,291,542 | |
| 16091 | Official Location | £ 179,832,369 | |
| 16092 | OfflineTV | £ 56,600,622 | |
| 16093 | Offroad Trucker | £ 154,672,666 | |
| 16094 | Offshore Accounts | £ 39,206,670 | |
| 16095 | Offshore Cash | £ 60,279,702 | |
| 16096 | Offshore Trading Company | £ 5,141,246 | |
| 16097 | Ofsted Inspection Regime | £ 61,751,261 | |
| 16098 | og esaelP | £ 4,208,484 | |
| 16099 | ogkush | £ 2,491,394 | |
| 16100 | Ogrimmar | £ 35,379,515 | |
