The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 10501 | MapleGrove | £ 483,977 | |
| 10502 | Mapleton Corp | £ 4,561,154 | |
| 10503 | MapleTree | £ 95,287,088 | |
| 10504 | Mapple | £ 7,653,759 | |
| 10505 | Mar | £ 3,166,311,646 | |
| 10506 | Mar MB | £ 59,938,508 | |
| 10507 | Mara Salvatrucha | £ 440,730,837 | |
| 10508 | Marathon | £ 59,899,042 | |
| 10509 | Marathon Runner | £ 58,033,010 | |
| 10510 | Marauders Inc | £ 4,803,396 | |
| 10511 | Marbles | £ 242,173,960 | |
| 10512 | Marc Enterprises | £ 25,832,788 | |
| 10513 | Marcandmoles5 | £ 4,486,455 | |
| 10514 | March | £ 6,102,999 | |
| 10515 | Marching-Affair | £ 9,701,603,338 | |
| 10516 | Marching-Again | £ 1,729,189,416 | |
| 10517 | Marco Inc | £ 7,330,897 | |
| 10518 | Marco Pierre White | £ 45,711,831 | |
| 10519 | Marco Simoncelli | £ 427,390,258 | |
| 10520 | Marcome Inc | £ -205,648 | |
| 10521 | Marcomm Inc | £ 5,254,390 | |
| 10522 | Mareals Beneficence | £ 5,020,666 | |
| 10523 | Margam | £ 581,332 | |
| 10524 | Margaret Thatcher | £ 63,413,613 | |
| 10525 | Marges | £ 978,012,084 | |
| 10526 | Marian | £ 10,810,903,421 | |
| 10527 | Marianas Trench | £ 362,582,082 | |
| 10528 | Marijuana | £ 139,330,510 | |
| 10529 | Marik Stelele | £ 1,645,091 | |
| 10530 | Marine Drive | £ 513,719,873 | |
| 10531 | Mario | £ 148,719,211 | |
| 10532 | Mario Bros. Plumbing | £ 21,346,748 | |
| 10533 | Marissa | £ 1,378,328,809 | |
| 10534 | Marissa 2 | £ 524,757,169 | |
| 10535 | Marissa 3 | £ 667,967,397 | |
| 10536 | Marissa 4 | £ 312,726,823 | |
| 10537 | Marissa 5 | £ 238,611,098 | |
| 10538 | Marissa 6 | £ 495,989,312 | |
| 10539 | Marissa 7 | £ 407,172,119 | |
| 10540 | Marissa 8 | £ 425,196,899 | |
| 10541 | Marissa 9 | £ 548,552,830 | |
| 10542 | Marissa Love | £ 220,710,374 | |
| 10543 | Maritime Fish Factory | £ 2,719,055 | |
| 10544 | Mark Chapman | £ 54,086,382 | |
| 10545 | Mark Co | £ 529,484 | |
| 10546 | Market Spike | £ 1,374,802 | |
| 10547 | MarketLiquidity | £ 10,169,358 | |
| 10548 | Marley | £ 5,014,024 | |
| 10549 | Marlin inc | £ 1,915,058 | |
| 10550 | Marmara | £ 1,010,339,022 | |
| 10551 | Marraqueta | £ 138,405,177 | |
| 10552 | Marriages | £ 225,537,792 | |
| 10553 | Marrissasempire | £ 1,227,037 | |
| 10554 | Marrying The Mafia | £ 532,818 | |
| 10555 | Mars | £ 55,103,707 | |
| 10556 | Mars bars LTD | £ 117,272,299 | |
| 10557 | Mars Colony | £ 789,735 | |
| 10558 | Mars Rover | £ 10,459,384 | |
| 10559 | Mars wont find me | £ 246,116 | |
| 10560 | Marshmallow Machetes Inc | £ 4,163,631 | |
| 10561 | Marshmello | £ 155,437,327 | |
| 10562 | MarshSkye | £ 35,400 | |
| 10563 | Martin Luther King Jnr | £ 902,082,927 | |
| 10564 | martini | £ 266,861,163 | |
| 10565 | Marton Institute | £ 83,507,879 | |
| 10566 | Martydom | £ 42,943,748 | |
| 10567 | Martyr Inc | £ 8,895,123 | |
| 10568 | Marvel | £ 8,186,565 | |
| 10569 | Marxism Pte Ltd | £ 32,260,072 | |
| 10570 | Mary | £ 46,301,903 | |
| 10571 | mary celeste | £ 47,276,134 | |
| 10572 | Maryland Inc | £ 1,946,529 | |
| 10573 | MaSaMuNe | £ 453,186,322 | |
| 10574 | Mascots | £ 2,709,237 | |
| 10575 | mashsmashanddaash | £ 178,398 | |
| 10576 | Mask | £ 277,025,659 | |
| 10577 | Mass | £ 612,498,813 | |
| 10578 | Mass Destructi0n | £ -2,791,141 | |
| 10579 | Mass Destruction | £ 208,613,868 | |
| 10580 | Mass Distraction | £ 740,836,641 | |
| 10581 | Mass Extinctions | £ 184,887,470 | |
| 10582 | MaSs HiLiGhTeR | £ 55,491,788 | |
| 10583 | Mass Satisfaction | £ 108,172,069 | |
| 10584 | Massacre | £ 7,955,799 | |
| 10585 | Massage Rev Win | £ 1,080,472,344 | |
| 10586 | Massenet | £ 652,023,276 | |
| 10587 | Massive | £ 83,683,640 | |
| 10588 | Massive Attack | £ 40,160,601 | |
| 10589 | Massive Dong Enterprise | £ 5,754,083 | |
| 10590 | MASSIVE ELECTIONS | £ 16,692,085 | |
| 10591 | Massive Inc | £ 6,334,823 | |
| 10592 | Massively Small Inc. | £ 4,064,248,020 | |
| 10593 | Masta Ace Inc | £ 84,177,720 | |
| 10594 | Mastah Inc. | £ -5,386,656 | |
| 10595 | Master | £ 411,127,543 | |
| 10596 | Master Builders | £ 6,821,399 | |
| 10597 | master molloy2 | £ 3,015,413 | |
| 10598 | Master of Zelda | £ -757,416 | |
| 10599 | Master Sticker Peelers | £ 256,154 | |
| 10600 | Master Swords and Bows | £ 24,666,107 | |
