The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 13501 | Osho | £ 4,055,871 | |
| 13502 | Osipolis | £ 16,660,041 | |
| 13503 | Osiris | £ 225,126,101 | |
| 13504 | osiris666 | £ -1,880,407 | |
| 13505 | osiris6971 | £ 10,377,105 | |
| 13506 | Osmosis | £ 41,633,292 | |
| 13507 | Osprey Close | £ 53,590,765 | |
| 13508 | other comps | £ 286,021,008 | |
| 13509 | Other Reality | £ 4,518,202 | |
| 13510 | Otherones | £ 61,853,286 | |
| 13511 | Others | £ 26,039,960 | |
| 13512 | otherwil | £ 133,717 | |
| 13513 | otherwil2 | £ -34,567,223 | |
| 13514 | otherwil3 | £ 1,893,225 | |
| 13515 | otherwil4 | £ 4,826,025 | |
| 13516 | otherwil5 | £ 829,030 | |
| 13517 | Ottawa | £ 44,778,874 | |
| 13518 | Otto | £ 511,521,836 | |
| 13519 | Ottoman Empire | £ 56,887,049 | |
| 13520 | OU812 | £ 295,697,174 | |
| 13521 | OuCh | £ 54,130,309 | |
| 13522 | Ouija Industries | £ 345,812 | |
| 13523 | our butterfly | £ 1,134,896,288 | |
| 13524 | Our Discontent | £ 5,507,855 | |
| 13525 | Our Dollar | £ 173,827,178 | |
| 13526 | Our Doorstep | £ 1,396,159 | |
| 13527 | Our Golden Years | £ 908,659,300 | |
| 13528 | Our Good Name | £ 571,345,968 | |
| 13529 | Our Happy Memories | £ 34,408,558 | |
| 13530 | our House | £ 107,912,263 | |
| 13531 | our judgement | £ 621,639,331 | |
| 13532 | our lifes | £ 463,792,927 | |
| 13533 | Our Lives | £ 60,309,789 | |
| 13534 | our Lord | £ 5,790,277 | |
| 13535 | Our Times | £ 1,742,749 | |
| 13536 | Ours | £ 191,746,347 | |
| 13537 | Ourselves | £ 91,484,866 | |
| 13538 | out | £ 85,981,569 | |
| 13539 | Out of Nothing | £ 6,356,430 | |
| 13540 | Out Of The Blue | £ 946,989,643 | |
| 13541 | Out of town | £ 586,926 | |
| 13542 | Out You Go | £ 39,675,860 | |
| 13543 | outbreak | £ 561,418,136 | |
| 13544 | Outer Heaven | £ 58,665,319 | |
| 13545 | Outlandish Labs LLC | £ 1,478,185 | |
| 13546 | Outlands | £ 157,090,767 | |
| 13547 | Outlaw | £ 10,047,120 | |
| 13548 | Outletsales | £ 1,793,596 | |
| 13549 | Outrageous Fortune | £ 210,155,594 | |
| 13550 | Outsourcing LLC | £ 4,372,708 | |
| 13551 | Outtathisworld plc | £ 1,236,092 | |
| 13552 | Outworld | £ 129,126,601 | |
| 13553 | Ovation | £ 2,547,061 | |
| 13554 | Over A Pub | £ 97,048,135 | |
| 13555 | Over Priced | £ 73,067,141 | |
| 13556 | overflowing bog | £ 11,871,021 | |
| 13557 | overHelming | £ 491,414,184 | |
| 13558 | Overmeire | £ 5,506,415 | |
| 13559 | Overpoort | £ 2,764,404 | |
| 13560 | Overpovered | £ 1,092,543 | |
| 13561 | Override | £ 17,139,813 | |
| 13562 | OverThor | £ 5,507,873 | |
| 13563 | Overwatch | £ 215,454,246 | |
| 13564 | Overwatch LTD | £ 57,470,387 | |
| 13565 | Ovine Flu | £ 49,217,489 | |
| 13566 | ow3n pte ltd | £ 3,307,504 | |
| 13567 | Owens Enterprise | £ 1,346,837,431 | |
| 13568 | Owl | £ 237,452,023 | |
| 13569 | OWLF | £ 2,914,903 | |
| 13570 | Owls | £ 425,596,680 | |
| 13571 | owned | £ 5,486,100 | |
| 13572 | Owned2EU | £ -76,039,189 | |
| 13573 | Owned3EU | £ 2,813,019 | |
| 13574 | Owned4EU | £ -11,748,456 | |
| 13575 | Owner | £ 6,354,110 | |
| 13576 | Ownership | £ 23,704,316 | |
| 13577 | Owning This Land | £ -869,747 | |
| 13578 | oWoTYRANNYoWo | £ 454,269,066 | |
| 13579 | OWWWW | £ 5,508,284 | |
| 13580 | Oxcide | £ 12,818,579 | |
| 13581 | Oxford | £ 205,487,202 | |
| 13582 | OXO | £ 627,787,564 | |
| 13583 | Oxtail Soup | £ 47,889,455 | |
| 13584 | Oxy Clean | £ 71,691,928 | |
| 13585 | OXYCODONE | £ 1,625,431,868 | |
| 13586 | Oxygen | £ 215,261,376 | |
| 13587 | Oxymoronisms | £ 224,770,993 | |
| 13588 | Oz and Goodwin | £ 4,583,012 | |
| 13589 | Oz. | £ 156,881,508 | |
| 13590 | OZ0.0 | £ 25,946,570 | |
| 13591 | OZ0.1 | £ 33,827,950 | |
| 13592 | OZ0.2 | £ 9,703,588 | |
| 13593 | OZ0.3 | £ 28,295,253 | |
| 13594 | OZ0.4 | £ 24,919,363 | |
| 13595 | OZ0.5 | £ 21,472,709 | |
| 13596 | OZ0.6 | £ 30,405,754 | |
| 13597 | OZ0.7 | £ 50,457,473 | |
| 13598 | OZ0.8 | £ 41,749,865 | |
| 13599 | OZ0.9 | £ 25,029,119 | |
| 13600 | OZ1.0 | £ 45,591,070 | |
