The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 10501 | Meowmeows | £ 6,546,378 | |
| 10502 | Mephisto | £ 128,755,876 | |
| 10503 | Mephistopheles | £ 108,730,107 | |
| 10504 | Mercedes | £ 333,388,191 | |
| 10505 | Mercedes Benz | £ 13,561,258 | |
| 10506 | Mercenaries R Us | £ 119,524,890 | |
| 10507 | Merchiston | £ 79,224,604 | |
| 10508 | Merciful | £ 5,254,502 | |
| 10509 | Merciless | £ 52,967,252 | |
| 10510 | Merck and Co Inc | £ 50,000 | |
| 10511 | Mercurial Skirmish 161 | £ 18,337,880 | |
| 10512 | Mercury | £ 56,920,095 | |
| 10513 | Mercy | £ 176,502,279 | |
| 10514 | Merica | £ 56,698,378 | |
| 10515 | Merit | £ 252,144,129 | |
| 10516 | Merles Anarchsts | £ 3,733,376 | |
| 10517 | MET | £ 20,898,349 | |
| 10518 | Metal | £ 72,184,695 | |
| 10519 | Metal Church | £ 55,040,228 | |
| 10520 | Metal Gear | £ 7,948,377 | |
| 10521 | metal mulisha | £ 49,071,127 | |
| 10522 | METAL MULISHA CO | £ 13,264,672 | |
| 10523 | Metal Redneck | £ 13,953,424 | |
| 10524 | metal redneck co | £ 5,500,897 | |
| 10525 | Metalcore.Ind | £ 5,882,041 | |
| 10526 | Metalit | £ 1,398,496 | |
| 10527 | Metallica | £ 38,420,056 | |
| 10528 | MetallicLatice | £ 273,061 | |
| 10529 | Metantatopy | £ 306,149,463 | |
| 10530 | Meteor Shower | £ 891,977,507 | |
| 10531 | Meth | £ 83,666,830 | |
| 10532 | Meth Inq | £ 192,418 | |
| 10533 | methadrine inc. | £ -2,620,751 | |
| 10534 | methane | £ 167,580,714 | |
| 10535 | Methuselah | £ 1,235,104,585 | |
| 10536 | metime | £ 7,016,004 | |
| 10537 | MeToo | £ 48,902,168 | |
| 10538 | metro | £ 326,059,689 | |
| 10539 | Metro News | £ 1,186,988 | |
| 10540 | Metrocity | £ 117,426,077 | |
| 10541 | MetroMan | £ 2,205,870 | |
| 10542 | MewMew | £ 3,983,504 | |
| 10543 | Mexican Elf-Fellaters | £ 380,836 | |
| 10544 | Mexican Fine Dining | £ 120,767,643 | |
| 10545 | Mexico | £ 143,099,228 | |
| 10546 | MG metal | £ 83,272,537 | |
| 10547 | MGandH | £ 5,503,263 | |
| 10548 | Mi Socio | £ 236,861,461 | |
| 10549 | MI5 | £ 141,793,336 | |
| 10550 | MI6 | £ 150,488,809 | |
| 10551 | mia lingua italiana | £ 446,549,861 | |
| 10552 | Mia Ventures | £ 182,100,857 | |
| 10553 | Miami | £ 58,175,004 | |
| 10554 | Miami Heat | £ 1,187,523 | |
| 10555 | Miccpelt | £ 414,182,779 | |
| 10556 | Mice | £ 54,981,578 | |
| 10557 | Mice and Men | £ 406,351,331 | |
| 10558 | Mice CORP | £ 4,657,778 | |
| 10559 | Mice INC | £ -8,592,908 | |
| 10560 | Mice LTD | £ -1,811 | |
| 10561 | Mice TM | £ -240,470 | |
| 10562 | Michael | £ 1,522,266 | |
| 10563 | Michael Jackson | £ 35,590,097 | |
| 10564 | MichaelUnitedJuggernaut | £ 944,737 | |
| 10565 | Michelangelo | £ 63,411,929 | |
| 10566 | Michelin Mogul | £ 89,056,676 | |
| 10567 | Michigan | £ 83,780,074 | |
| 10568 | Michigan 1 | £ 4,091,450 | |
| 10569 | Mickey Mouse | £ 534,504,800 | |
| 10570 | micks empire | £ 5,500,143 | |
| 10571 | Micky | £ 1,182,852,937 | |
| 10572 | Micoss | £ 50,000 | |
| 10573 | Micro Waves | £ 27,270,073 | |
| 10574 | Microbix | £ 5,230,264 | |
| 10575 | Microboom | £ 45,468,171 | |
| 10576 | Microhard | £ 16,911,150 | |
| 10577 | Microserve | £ 5,974,813 | |
| 10578 | Microsft Enterprises | £ 6,100,321 | |
| 10579 | Microsoft | £ 564,820,057 | |
| 10580 | Microsoft Corporation | £ 58,800,390 | |
| 10581 | Microsoft Retail Ltd. | £ 1,276,186 | |
| 10582 | Midas | £ 26,756,564 | |
| 10583 | Midgar | £ 17,036,842 | |
| 10584 | Midget | £ 6,969,650,811 | |
| 10585 | Midget Enterprises | £ 4,592,005,545 | |
| 10586 | Midget Inc | £ 9,759,712,772 | |
| 10587 | Midget Tossing | £ 57,557,330 | |
| 10588 | Midget World | £ 20,187,368,383 | |
| 10589 | Midgets | £ 83,354,303 | |
| 10590 | Midlands13th | £ 6,244,011 | |
| 10591 | Midnight | £ 50,252,909 | |
| 10592 | Midnight Bombers | £ 32,340,913 | |
| 10593 | Midnight Express | £ 52,062,394 | |
| 10594 | Midnight Fun | £ 186,160,753 | |
| 10595 | Midnight Madness | £ 1,054,095,620 | |
| 10596 | Midnight Marauder | £ 32,345,237 | |
| 10597 | Midnight Marauders | £ 553,311,151 | |
| 10598 | Midnight Rider | £ 1,002,532,202 | |
| 10599 | midnight run | £ 257,727,295 | |
| 10600 | Migdets Mom | £ 45,315,841 | |
