The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 16401 | osiris666 | £ -1,880,407 | |
| 16402 | osiris6971 | £ 50,840,965 | |
| 16403 | Oslo | £ 9,880,014 | |
| 16404 | Osmosis | £ 41,633,292 | |
| 16405 | Osprey Close | £ 53,590,765 | |
| 16406 | Othello | £ 79,511,406 | |
| 16407 | other comps | £ 286,021,008 | |
| 16408 | Other People | £ 14,119,678 | |
| 16409 | Others | £ 26,039,960 | |
| 16410 | Others sometimes | £ 65,359,099 | |
| 16411 | otherwil | £ 133,717 | |
| 16412 | otherwil2 | £ -34,567,223 | |
| 16413 | otherwil3 | £ 1,893,225 | |
| 16414 | otherwil4 | £ 4,826,025 | |
| 16415 | otherwil5 | £ 829,030 | |
| 16416 | Ottawa | £ 44,778,874 | |
| 16417 | Ottoman Empire | £ 56,887,049 | |
| 16418 | OU812 | £ 295,697,174 | |
| 16419 | Ouija Industries | £ 345,812 | |
| 16420 | our butterfly | £ 1,134,896,288 | |
| 16421 | our differences | £ 302,439,939 | |
| 16422 | Our Discontent | £ 5,507,855 | |
| 16423 | Our Fathers | £ 116,143,694 | |
| 16424 | Our Golden Years | £ 908,659,300 | |
| 16425 | Our Good Name | £ 571,345,968 | |
| 16426 | Our Happy Memories | £ 34,408,558 | |
| 16427 | our judgement | £ 621,639,331 | |
| 16428 | our lifes | £ 464,291,926 | |
| 16429 | Our Lives | £ 60,309,789 | |
| 16430 | Our Times | £ 1,742,749 | |
| 16431 | our universe | £ 611,100,154 | |
| 16432 | Ours | £ 1,053,657,782 | |
| 16433 | Ourselves | £ 91,484,866 | |
| 16434 | out | £ 85,981,569 | |
| 16435 | out of my face | £ 581,084,624 | |
| 16436 | Out of Nothing | £ 6,356,430 | |
| 16437 | Out Of The Blue | £ 946,989,643 | |
| 16438 | Outcomes | £ 4,562,477 | |
| 16439 | Outer Heaven | £ 58,665,319 | |
| 16440 | Outlandish Labs LLC | £ 1,478,185 | |
| 16441 | Outletsales | £ 1,793,596 | |
| 16442 | outlook responding | £ 701,205,286 | |
| 16443 | Outrageous Fortune | £ 210,155,594 | |
| 16444 | Outside Space | £ 6,959,307 | |
| 16445 | Outside the square | £ 192,330,035 | |
| 16446 | Outsourcing LLC | £ 4,372,708 | |
| 16447 | Outtathisworld plc | £ 1,236,092 | |
| 16448 | Ovation | £ 2,547,061 | |
| 16449 | over educated idiots | £ 145,664,345 | |
| 16450 | Over grown bush | £ 175,719,320 | |
| 16451 | Over Priced | £ 73,067,141 | |
| 16452 | Overclocked RAM | £ 51,978,581 | |
| 16453 | Overdrive | £ 104,717,990 | |
| 16454 | overHelming | £ 491,414,184 | |
| 16455 | Overmeire | £ 5,506,415 | |
| 16456 | Overpoort | £ 2,764,404 | |
| 16457 | Override | £ 17,139,813 | |
| 16458 | overthinking | £ 10,529,502 | |
| 16459 | OverThor | £ 5,507,873 | |
| 16460 | Overwatch | £ 215,454,246 | |
| 16461 | Overwatch LTD | £ 57,470,387 | |
| 16462 | Overwhelming | £ 60,498,024 | |
| 16463 | Ovine Flu | £ 61,245,519 | |
| 16464 | ow3n pte ltd | £ 3,307,504 | |
| 16465 | Owens Enterprise | £ 1,467,909,302 | |
| 16466 | Owl | £ 237,452,023 | |
| 16467 | Owls | £ 425,596,680 | |
| 16468 | owned | £ 5,486,100 | |
| 16469 | Owned2EU | £ -76,039,189 | |
| 16470 | Owned3EU | £ 2,813,019 | |
| 16471 | Owned4EU | £ -11,748,456 | |
| 16472 | Owner | £ 6,354,110 | |
| 16473 | Ownership | £ 167,533,874 | |
| 16474 | oWoTYRANNYoWo | £ 203,047,535 | |
| 16475 | OWWWW | £ 5,508,284 | |
| 16476 | Oxcide | £ 12,818,579 | |
| 16477 | Oxford | £ 205,487,202 | |
| 16478 | OXO | £ 757,480,822 | |
| 16479 | Oxtail Soup | £ 64,738,096 | |
| 16480 | Oxy Clean | £ 71,691,928 | |
| 16481 | OXYCODONE | £ 2,227,745,588 | |
| 16482 | Oxygen | £ 215,261,376 | |
| 16483 | Oxymoronisms | £ 1,404,506,288 | |
| 16484 | Oy The Billy Bumbler | £ 46,272,482 | |
| 16485 | Oz and Goodwin | £ 4,583,012 | |
| 16486 | Oz Racing | £ 5,502,594 | |
| 16487 | Oz. | £ 1,143,886,987 | |
| 16488 | Ozymandias | £ 29,843 | |
| 16489 | Ozz | £ 89,779,013 | |
| 16490 | P a p a r a z z i | £ 178,441,792 | |
| 16491 | P.A.F.C | £ 4,925,729 | |
| 16492 | P1GLTD | £ 19,292 | |
| 16493 | paal met bijen | £ 13,025,042 | |
| 16494 | Pabst | £ 52,512,217 | |
| 16495 | Pac-Mans Wrath | £ 37,103,581 | |
| 16496 | PACE | £ 70,619,715 | |
| 16497 | Pace and Power | £ 1,349,918,101 | |
| 16498 | PACE10000 | £ -134,527 | |
| 16499 | Pacha | £ 639,799,243 | |
| 16500 | Pacific Courier | £ 1,152,453,915 | |
