The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 13501 | OB5 | £ 9,012,088 | |
| 13502 | Obama Proposes | £ 2,061,600 | |
| 13503 | Obar Ardair | £ 387,490,277 | |
| 13504 | Obble | £ 466,184,526 | |
| 13505 | obedience | £ 854,355,799 | |
| 13506 | Obese American | £ 161,429,557 | |
| 13507 | Obi-Wan Kenobi | £ 679,530,747 | |
| 13508 | Obi-Wan-Kenobi | £ 100,953,209 | |
| 13509 | Object in Motion | £ 106,865,438 | |
| 13510 | Obliterator | £ 5,501,753 | |
| 13511 | Oblivion | £ 75,985,020 | |
| 13512 | Obsolete | £ 55,457,606 | |
| 13513 | Obtuse | £ 14,379,095 | |
| 13514 | Obviously | £ 2,318,576,665 | |
| 13515 | Ocarina of Time | £ -1,574,201 | |
| 13516 | OCB inc | £ 6,320,804 | |
| 13517 | Occasional Tables | £ 5,328,203 | |
| 13518 | Ocean | £ 52,827,866 | |
| 13519 | Ocean Beach Club | £ 337,773,198 | |
| 13520 | Ocean Defence | £ 95,896,931 | |
| 13521 | ocean star | £ 3,580,849,318 | |
| 13522 | Oceanic Enterprises | £ -50,808 | |
| 13523 | Oceans 11 | £ 58,500,636 | |
| 13524 | Oceans 12 | £ 10,291,638 | |
| 13525 | Oceans 13 | £ 132,219,759 | |
| 13526 | Oceans Eleven | £ 8,485,684 | |
| 13527 | Ocelot | £ 194,460,230 | |
| 13528 | Och Noooo | £ 1,506,119 | |
| 13529 | Octavian | £ 4,631,188 | |
| 13530 | October 1066 | £ 83,572,041 | |
| 13531 | October 1854 | £ 275,276,454 | |
| 13532 | October 2014 | £ 94,385,046 | |
| 13533 | Octopia | £ 9,626,521 | |
| 13534 | Octopus Garden | £ 4,050,927 | |
| 13535 | Oculus | £ 3,445,658 | |
| 13536 | Oddjob | £ 16,604,273 | |
| 13537 | Odds on Favorite | £ 74,346,727 | |
| 13538 | Oddysay | £ 2,896,867 | |
| 13539 | Odell | £ 13,714,064 | |
| 13540 | Oden | £ 641,394,649 | |
| 13541 | oden wrath | £ 1,735,842,850 | |
| 13542 | odin | £ 8,811,968 | |
| 13543 | Odin Mafia | £ 8,768,668 | |
| 13544 | Odin the Wanderer | £ 4,687,105 | |
| 13545 | Odo | £ 32,513,900 | |
| 13546 | Odqan | £ 107,686,204 | |
| 13547 | Odyssey | £ 329,493,997 | |
| 13548 | of a black widow | £ 196,069,515 | |
| 13549 | Of a Brutal Empire | £ 36,359,377 | |
| 13550 | of a Solar Empire | £ 46,660,163 | |
| 13551 | Of A Time | £ 22,904,697 | |
| 13552 | Of All Your Land | £ 48,121,892 | |
| 13553 | Of Bomb | £ 5,131,350 | |
| 13554 | of CFC | £ 5,455,120 | |
| 13555 | of Elm Street | £ 49,875 | |
| 13556 | Of Every Position | £ 61,887,884 | |
| 13557 | Of Friday the 13th | £ 50,000 | |
| 13558 | Of Green Bay | £ 7,216,016 | |
| 13559 | of Impendium | £ 349,441 | |
| 13560 | of Long Stockings | £ 16,738,335 | |
| 13561 | Of Minisotta | £ 1,716,607 | |
| 13562 | Of My Label | £ 295,911,481 | |
| 13563 | of of | £ 7,075,463 | |
| 13564 | of of of | £ 4,201,365 | |
| 13565 | of REASON | £ 1,154,429 | |
| 13566 | of RHC | £ 68,042,901 | |
| 13567 | Of Scotland | £ 1,304,795,018 | |
| 13568 | of the devil | £ 27,539,344 | |
| 13569 | of The Hat | £ 5,507,097 | |
| 13570 | of the heap | £ 66,771,581 | |
| 13571 | of the lost | £ 69,257,675 | |
| 13572 | of the monsters | £ 41,126,098 | |
| 13573 | Of The Road | £ 146,979,140 | |
| 13574 | of the runite | £ 4,694,589 | |
| 13575 | Of The UVF | £ 133,321,393 | |
| 13576 | Of the world | £ 2,007,785 | |
| 13577 | Of Time | £ 372,360,923 | |
| 13578 | of. | £ 335,457,109 | |
| 13579 | Ofcom | £ 320,664,180 | |
| 13580 | Off | £ 25,794,080 | |
| 13581 | off it | £ 5,261,275 | |
| 13582 | Offenbach | £ 382,674,581 | |
| 13583 | Offensive Behaviour | £ 509,861,247 | |
| 13584 | office | £ 625,966,044 | |
| 13585 | Official Location | £ 102,070,650 | |
| 13586 | Offroad Trucker | £ 53,281,734 | |
| 13587 | Offshore | £ 367,643,133 | |
| 13588 | Offshore Accounts | £ 231,226,026 | |
| 13589 | Offshore Cash | £ 60,279,702 | |
| 13590 | og esaelP | £ 4,208,484 | |
| 13591 | ogkush | £ 2,491,394 | |
| 13592 | Ogrimmar | £ 35,379,515 | |
| 13593 | Oh Herro | £ 2,995,837 | |
| 13594 | Oh Jesus Christ | £ 9,142,153 | |
| 13595 | Oh No | £ 192,452,517 | |
| 13596 | Oh YEAH | £ 2,549,726 | |
| 13597 | ohara inc | £ -165,571 | |
| 13598 | ohe herrow | £ 5,703,509 | |
| 13599 | Ohnoitsmymothernlaw | £ 5,504,562 | |
| 13600 | Ohtaku inc | £ 3,600,029 | |
