The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 10501 | Model in Black | £ 32,036,184 | |
| 10502 | model1 | £ 298,042,055 | |
| 10503 | Moderate Pharmaceuticals | £ 7,403,273 | |
| 10504 | Modern Chemistry | £ 50,000 | |
| 10505 | Modern Day Filth | £ 39,727,103 | |
| 10506 | modern homes and windows | £ 7,559,098 | |
| 10507 | Modern Medicine | £ 416,628,419 | |
| 10508 | mog | £ 62,817,831 | |
| 10509 | MoguMogu | £ 50,000 | |
| 10510 | Mogwai | £ 2,154,414,644 | |
| 10511 | Mohawk | £ 5,884,779 | |
| 10512 | mohicans | £ 87,704,089 | |
| 10513 | MojoMonies | £ -11,896,511 | |
| 10514 | Mojon Inc | £ 2,533,275 | |
| 10515 | Moldy Bread | £ 3,146,415 | |
| 10516 | Mole | £ 2,572,348 | |
| 10517 | molenstraat | £ 2,013,822 | |
| 10518 | Molko | £ 88,524,189 | |
| 10519 | Molly | £ 58,389,036 | |
| 10520 | Molokozavod | £ 8,147,120 | |
| 10521 | Molotov | £ 4,672,705,578 | |
| 10522 | Moltisanti | £ 84,213,087 | |
| 10523 | Moltke Enterprises | £ 58,439,943 | |
| 10524 | mom | £ 55,819,745 | |
| 10525 | MomCorp | £ 1,768,330 | |
| 10526 | Moment | £ 50,000 | |
| 10527 | Moments | £ 13,838,455 | |
| 10528 | MommaJune | £ 5,871,123 | |
| 10529 | Mommy | £ 7,669,413 | |
| 10530 | MOMOO | £ 147,977 | |
| 10531 | Moms diner | £ 125,413 | |
| 10532 | Mon | £ 8,704,871 | |
| 10533 | Monaco | £ 43,667,263 | |
| 10534 | Monarchic | £ 27,179,904 | |
| 10535 | Monastery | £ 1,678,761 | |
| 10536 | Moncrot | £ 2,803,567 | |
| 10537 | Moncton | £ 252,860,791 | |
| 10538 | Monetary Policy | £ -1,342,786 | |
| 10539 | Money | £ 56,804,752 | |
| 10540 | Money Bags | £ 4,555,558 | |
| 10541 | Money Club | £ 3,724,557 | |
| 10542 | Money Inc. | £ 5,469,873 | |
| 10543 | Money Laundering | £ 261,958,225 | |
| 10544 | Money Lenders | £ 11,476,352 | |
| 10545 | Money Ltd | £ 4,615,437 | |
| 10546 | money mad | £ 3,798,586 | |
| 10547 | Money Maker | £ 5,061,369 | |
| 10548 | Money Mule | £ 893,799 | |
| 10549 | Money Shop | £ 203,493 | |
| 10550 | Money to Blow | £ 43,121,821 | |
| 10551 | Money Train | £ 5,507,812 | |
| 10552 | Moneyball | £ 83,351,921 | |
| 10553 | MoneyInc | £ 30,406,225 | |
| 10554 | MoneyMaker | £ 6,039,073 | |
| 10555 | MoneyMaker Incorporated | £ -196,573 | |
| 10556 | MoneyNoEnough | £ 4,268,780 | |
| 10557 | Moneys-R-Us | £ 329,378 | |
| 10558 | MoneysRus | £ 50,000 | |
| 10559 | Mongeral World | £ 54,700,169 | |
| 10560 | Mongol Empire | £ 1,372,057 | |
| 10561 | Mongolian | £ 711,219 | |
| 10562 | mongs | £ 43,459,377 | |
| 10563 | Monies | £ 5,807,618 | |
| 10564 | Monitor | £ 38,036,968 | |
| 10565 | monk 1111 | £ 81,826,230 | |
| 10566 | monk 3333 | £ 98,426,009 | |
| 10567 | monk 3566 | £ 79,425,725 | |
| 10568 | monk 4444 | £ 51,407,478 | |
| 10569 | monk 4726 | £ 76,980,743 | |
| 10570 | monk 5555 | £ 80,711,220 | |
| 10571 | monk 7686 | £ 130,082,249 | |
| 10572 | monk 8965 | £ 128,819,700 | |
| 10573 | monk2222 | £ 76,782,380 | |
| 10574 | monkey | £ 111,502 | |
| 10575 | Monkey business inc. | £ 8,421,825 | |
| 10576 | Monkey Filthy | £ 50,000 | |
| 10577 | Monkey God | £ 32,686,454 | |
| 10578 | Monkey Island | £ 45,335,002 | |
| 10579 | Monkey Magic | £ 4,304,503 | |
| 10580 | Monkey Nuts | £ 41,833,992 | |
| 10581 | Monkey World | £ 125,567,620 | |
| 10582 | Monkeys | £ 34,227,997 | |
| 10583 | MONKEYtherealGOD | £ 166,563 | |
| 10584 | Monks | £ 4,745,903 | |
| 10585 | Monky Corp. | £ 3,340,451 | |
| 10586 | MonoBlock I | £ 425,298 | |
| 10587 | monopoly | £ 1,204,088,496 | |
| 10588 | Mons Ltd | £ 3,897,177 | |
| 10589 | Monsanto | £ -27,452 | |
| 10590 | Monstas Inc. | £ 5,371,346 | |
| 10591 | monster | £ 20,955,601 | |
| 10592 | Monster Carp | £ 171,637,106 | |
| 10593 | Monster Dong | £ 4,463,570,855 | |
| 10594 | Monster Energy | £ 4,656,550 | |
| 10595 | Monster Inc. | £ 5,507,387 | |
| 10596 | Monster Machines | £ 39,042,182 | |
| 10597 | MonsterEnergy | £ 4,891,788 | |
| 10598 | Monsters | £ 5,726,122 | |
| 10599 | Monsters inc | £ -10,619 | |
| 10600 | Monsters nc | £ 72,438,201 | |
