The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 14401 | Misconduct | £ 114,692,713 | |
| 14402 | Misery Publishing | £ 59,419,185 | |
| 14403 | Misfit | £ 52,650,253 | |
| 14404 | Misfortune | £ 188,798,028 | |
| 14405 | Mish Mash | £ 357,804,635 | |
| 14406 | Misinterpretation | £ 486,461 | |
| 14407 | Misrule | £ 201,527,035 | |
| 14408 | Miss Bitch bombers | £ 4,512,007 | |
| 14409 | MissFubar PLC | £ 31,726,370 | |
| 14410 | missile command | £ 363,500,728 | |
| 14411 | Missile Inc | £ 37,431,256 | |
| 14412 | Missiles Incorporated | £ 1,859,206 | |
| 14413 | missing a toe | £ 93,592,827 | |
| 14414 | Mission | £ 166,801,144 | |
| 14415 | Mission Survive | £ 114,950,288 | |
| 14416 | Missionary | £ 72,118,701 | |
| 14417 | Mississippi | £ 5,500,599 | |
| 14418 | Mississippi Burning | £ 47,665,328 | |
| 14419 | Mississippi Dreams | £ 269,344,047 | |
| 14420 | Mississippi Inc | £ 5,281,962 | |
| 14421 | MississippiMusic | £ 2,811,899 | |
| 14422 | MissMikka | £ 147,489,020 | |
| 14423 | MISSOURI | £ 1,148,314,366 | |
| 14424 | Missouri Belle | £ 83,454,986 | |
| 14425 | Missyxx | £ 50,000 | |
| 14426 | Mistake | £ 1,937,719,857 | |
| 14427 | Mistake Not | £ 4,245,817,468 | |
| 14428 | Mistaken Identity | £ 109,775,714 | |
| 14429 | mistaken yidentit | £ 20,847,058 | |
| 14430 | Mistakes | £ 24,462,673 | |
| 14431 | mister | £ 15,343,639 | |
| 14432 | Mistree | £ 50,000 | |
| 14433 | Misty | £ 25,528,368 | |
| 14434 | Mitchell Ltd | £ -2,115,101 | |
| 14435 | Mitchell Ltd2 | £ -1,529,234 | |
| 14436 | Mitchell Ltd3 | £ 5,496,523 | |
| 14437 | Mitchell Ltd4 | £ 4,625,817 | |
| 14438 | Mithandir | £ 398,278,073 | |
| 14439 | Mitigate | £ 5,587,489 | |
| 14440 | Mitigating Circumstances | £ 162,513,039 | |
| 14441 | Mitres | £ 684,354,522 | |
| 14442 | Mixed Reviews | £ 5,510,398 | |
| 14443 | Mixup | £ 47,158,504 | |
| 14444 | Mizuko Holdings | £ 50,000 | |
| 14445 | MJHCo. | £ 81,836,520 | |
| 14446 | MJI | £ 5,141,163 | |
| 14447 | MJII | £ 1,514,759 | |
| 14448 | MJIII | £ 1,341,503 | |
| 14449 | MJIV | £ 334,370 | |
| 14450 | MJJ Incorporated | £ 1,023,622,671 | |
| 14451 | MJLee | £ 12,045,209 | |
| 14452 | MJM 2 | £ 50,000 | |
| 14453 | MJM Games | £ 921,860 | |
| 14454 | Mjolnir | £ 8,576,019,119 | |
| 14455 | MJP Enterprises | £ -2,209,310 | |
| 14456 | MK II | £ 50,000 | |
| 14457 | MK Ultra | £ -17,913,353 | |
| 14458 | Mk11 | £ 199,761,040 | |
| 14459 | MkIII Industries | £ 5,121,147 | |
| 14460 | MKL | £ 5,035,144,889 | |
| 14461 | mkyumku | £ 1,322,486 | |
| 14462 | mlawenterprise | £ 206,267,702 | |
| 14463 | mlawenterprises | £ 74,433,740 | |
| 14464 | MLH Industries | £ 31,163,815 | |
| 14465 | MLM | £ 27,543,396,055 | |
| 14466 | MLM Group | £ 153,402,015 | |
| 14467 | MM Holdings | £ 2,652,329,894 | |
| 14468 | MM Holdings 2 | £ 83,019,205 | |
| 14469 | MM Holdings 3 | £ 82,035,235 | |
| 14470 | MM Holdings 4 | £ 80,901,085 | |
| 14471 | MMA | £ 14,208,696 | |
| 14472 | MMI | £ 3,194,811 | |
| 14473 | MMI Holdings | £ 2,450,207 | |
| 14474 | MMI2 | £ 4,617,014 | |
| 14475 | MMI3 | £ 161,241 | |
| 14476 | mmmHHHMmm | £ 1,268,288 | |
| 14477 | MMMM CAKE | £ 11,700,419 | |
| 14478 | MMORPG | £ 386,202,529 | |
| 14479 | MMS | £ 728,736 | |
| 14480 | MN Painting | £ 69,865,838 | |
| 14481 | mnb | £ 5,869,704 | |
| 14482 | MNGA | £ -591,189 | |
| 14483 | Mo Alba | £ 497,470,179 | |
| 14484 | MO Factory | £ 52,455,961 | |
| 14485 | Moa Gu | £ 77,370,553 | |
| 14486 | moarbkup | £ 5,508,731 | |
| 14487 | moarCarparks | £ 5,546,279 | |
| 14488 | MOASS | £ 10,968,075 | |
| 14489 | Mob Life Inc | £ 5,489,924 | |
| 14490 | Mob Mentality | £ 3,456,883 | |
| 14491 | Mob Rule | £ 187,313,616 | |
| 14492 | Mobbin Service | £ 37,804,870 | |
| 14493 | MobLand | £ 50,213,760 | |
| 14494 | Mochrum | £ 1,087,713,290 | |
| 14495 | Mockingbird Heights | £ 587,756,411 | |
| 14496 | Mod786 | £ 28,058,765 | |
| 14497 | Mod7866 | £ 5,631,868 | |
| 14498 | model | £ 126,900,274 | |
| 14499 | Model 1910 | £ 15,519,029 | |
| 14500 | Model in Black | £ 32,036,184 | |
