The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 11501 | Mission Survive | £ 114,950,288 | |
| 11502 | Mississippi | £ 5,500,599 | |
| 11503 | Mississippi Burning | £ 47,665,328 | |
| 11504 | Mississippi Dreams | £ 269,344,047 | |
| 11505 | Mississippi Inc | £ 5,281,962 | |
| 11506 | MississippiMusic | £ 2,811,899 | |
| 11507 | MISSOURI | £ 1,148,314,366 | |
| 11508 | Missyxx | £ 50,000 | |
| 11509 | Mistake | £ 1,937,719,857 | |
| 11510 | Mistake Not | £ 4,245,817,468 | |
| 11511 | Mistaken Identity | £ 109,775,714 | |
| 11512 | mistaken yidentit | £ 20,847,058 | |
| 11513 | Mistakes | £ 24,462,673 | |
| 11514 | mister | £ 15,343,639 | |
| 11515 | Mister Mister | £ 25,037,060 | |
| 11516 | Mistree | £ 50,000 | |
| 11517 | Mitchell Ltd | £ -2,115,101 | |
| 11518 | Mitchell Ltd2 | £ -1,529,234 | |
| 11519 | Mitchell Ltd3 | £ 5,496,523 | |
| 11520 | Mitchell Ltd4 | £ 4,625,817 | |
| 11521 | Mitigating Circumstances | £ 162,513,039 | |
| 11522 | Mitres | £ 684,354,522 | |
| 11523 | mix | £ 11,825,750 | |
| 11524 | Mixture | £ 34,126,543 | |
| 11525 | Mizuko Holdings | £ 50,000 | |
| 11526 | MJHCo. | £ 81,836,520 | |
| 11527 | MJI | £ 5,141,163 | |
| 11528 | MJII | £ 1,514,759 | |
| 11529 | MJIII | £ 1,341,503 | |
| 11530 | MJIV | £ 334,370 | |
| 11531 | MJLee | £ 12,045,209 | |
| 11532 | MJM 2 | £ 50,000 | |
| 11533 | MJM Games | £ 921,860 | |
| 11534 | Mjolnir | £ 6,368,825,422 | |
| 11535 | MK II | £ -371,982 | |
| 11536 | MK Ultra | £ -17,913,353 | |
| 11537 | MKL | £ 3,182,122,075 | |
| 11538 | mkyumku | £ 1,322,486 | |
| 11539 | mlawenterprise | £ 206,267,702 | |
| 11540 | mlawenterprises | £ 74,433,740 | |
| 11541 | MLM | £ 559,047,014 | |
| 11542 | MLM Group | £ 85,259,170 | |
| 11543 | MMI | £ 3,194,811 | |
| 11544 | MMI Holdings | £ 2,450,207 | |
| 11545 | MMI2 | £ 4,617,014 | |
| 11546 | MMI3 | £ 161,241 | |
| 11547 | mmmHHHMmm | £ 1,268,288 | |
| 11548 | MMMM CAKE | £ 11,700,419 | |
| 11549 | MMORPG | £ 386,202,529 | |
| 11550 | MMS | £ 728,736 | |
| 11551 | MN Painting | £ 43,301,533 | |
| 11552 | mnb | £ 5,869,704 | |
| 11553 | Mnv | £ 69,523,625 | |
| 11554 | Mo Alba | £ 497,470,179 | |
| 11555 | MOAB | £ 50,000 | |
| 11556 | moarbkup | £ 5,508,731 | |
| 11557 | moarCarparks | £ 5,546,279 | |
| 11558 | Mob Life Inc | £ 5,489,924 | |
| 11559 | Mob Mentality | £ 3,456,883 | |
| 11560 | Mobbin Service | £ 37,804,870 | |
| 11561 | Mod786 | £ 28,058,765 | |
| 11562 | Mod7866 | £ 5,631,868 | |
| 11563 | Mode | £ 401,332,556 | |
| 11564 | model | £ 126,900,274 | |
| 11565 | Model 1910 | £ 15,519,029 | |
| 11566 | Model in Black | £ 32,036,184 | |
| 11567 | model1 | £ 298,042,055 | |
| 11568 | Moderate Pharmaceuticals | £ 7,403,273 | |
| 11569 | Modern Chemistry | £ 50,000 | |
| 11570 | Modern Day Filth | £ 39,727,103 | |
| 11571 | modern homes and windows | £ 60,782,477 | |
| 11572 | Modern Medicine | £ 651,787,781 | |
| 11573 | mog | £ 62,817,831 | |
| 11574 | MoguMogu | £ 50,000 | |
| 11575 | Mogwai | £ 2,360,035,302 | |
| 11576 | Mohawk | £ 5,884,779 | |
| 11577 | mohicans | £ 87,704,089 | |
| 11578 | MojoMonies | £ -11,896,511 | |
| 11579 | Mojon Inc | £ 2,533,275 | |
| 11580 | Moldy Bread | £ 3,146,415 | |
| 11581 | Mole | £ 2,572,348 | |
| 11582 | molenstraat | £ 2,013,822 | |
| 11583 | Molko | £ 88,524,189 | |
| 11584 | Molly | £ 58,389,036 | |
| 11585 | Molokozavod | £ 8,147,120 | |
| 11586 | Molotov | £ 4,678,705,578 | |
| 11587 | Moltisanti | £ 88,259,217 | |
| 11588 | Moltke Enterprises | £ 58,439,943 | |
| 11589 | mom | £ 317,995,877 | |
| 11590 | MomCorp | £ 1,768,330 | |
| 11591 | Moment | £ 50,000 | |
| 11592 | Moments | £ 15,913,003 | |
| 11593 | MommaJune | £ 5,871,123 | |
| 11594 | Mommy | £ 7,669,413 | |
| 11595 | MOMOO | £ 147,977 | |
| 11596 | Moms diner | £ 125,413 | |
| 11597 | Mon | £ 8,704,871 | |
| 11598 | Monaco | £ 43,667,263 | |
| 11599 | Monarchic | £ 27,179,904 | |
| 11600 | Monastery | £ 1,678,761 | |
