The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 11401 | Mitchell Ltd4 | £ 4,625,817 | |
| 11402 | Mitigating Circumstances | £ 162,513,039 | |
| 11403 | Mitres | £ 684,354,522 | |
| 11404 | mix | £ 11,825,750 | |
| 11405 | Mixture | £ 34,126,543 | |
| 11406 | Mizuko Holdings | £ 50,000 | |
| 11407 | MJHCo. | £ 81,836,520 | |
| 11408 | MJI | £ 5,141,163 | |
| 11409 | MJII | £ 1,514,759 | |
| 11410 | MJIII | £ 1,341,503 | |
| 11411 | MJIV | £ 334,370 | |
| 11412 | MJLee | £ 12,045,209 | |
| 11413 | MJM 2 | £ 50,000 | |
| 11414 | MJM Games | £ 921,860 | |
| 11415 | Mjolnir | £ 6,368,825,422 | |
| 11416 | MK II | £ -371,982 | |
| 11417 | MK Ultra | £ -17,913,353 | |
| 11418 | MKL | £ 3,182,122,075 | |
| 11419 | mkyumku | £ 1,322,486 | |
| 11420 | mlawenterprise | £ 206,267,702 | |
| 11421 | mlawenterprises | £ 74,433,740 | |
| 11422 | MLM | £ 175,488,499 | |
| 11423 | MLM Group | £ 85,259,170 | |
| 11424 | MMI | £ 3,194,811 | |
| 11425 | MMI Holdings | £ 2,450,207 | |
| 11426 | MMI2 | £ 4,617,014 | |
| 11427 | MMI3 | £ 161,241 | |
| 11428 | mmmHHHMmm | £ 1,268,288 | |
| 11429 | MMMM CAKE | £ 11,700,419 | |
| 11430 | MMORPG | £ 386,202,529 | |
| 11431 | MMS | £ 728,736 | |
| 11432 | MN Painting | £ 40,314,589 | |
| 11433 | mnb | £ 5,869,704 | |
| 11434 | Mnv | £ 69,523,625 | |
| 11435 | Mo Alba | £ 497,470,179 | |
| 11436 | MOAB | £ 50,000 | |
| 11437 | moarbkup | £ 5,508,731 | |
| 11438 | moarCarparks | £ 5,546,279 | |
| 11439 | Mob Life Inc | £ 5,489,924 | |
| 11440 | Mob Mentality | £ 3,456,883 | |
| 11441 | Mobbin Service | £ 37,804,870 | |
| 11442 | Mod786 | £ 28,058,765 | |
| 11443 | Mod7866 | £ 5,631,868 | |
| 11444 | Mode | £ 401,332,556 | |
| 11445 | model | £ 126,900,274 | |
| 11446 | Model 1910 | £ 15,519,029 | |
| 11447 | Model in Black | £ 32,036,184 | |
| 11448 | model1 | £ 298,042,055 | |
| 11449 | Moderate Pharmaceuticals | £ 7,403,273 | |
| 11450 | Modern Chemistry | £ 50,000 | |
| 11451 | Modern Day Filth | £ 39,727,103 | |
| 11452 | modern homes and windows | £ 60,782,477 | |
| 11453 | Modern Medicine | £ 615,486,410 | |
| 11454 | mog | £ 62,817,831 | |
| 11455 | MoguMogu | £ 50,000 | |
| 11456 | Mogwai | £ 2,342,035,302 | |
| 11457 | Mohawk | £ 5,884,779 | |
| 11458 | mohicans | £ 87,704,089 | |
| 11459 | MojoMonies | £ -11,896,511 | |
| 11460 | Mojon Inc | £ 2,533,275 | |
| 11461 | Moldy Bread | £ 3,146,415 | |
| 11462 | Mole | £ 2,572,348 | |
| 11463 | molenstraat | £ 2,013,822 | |
| 11464 | Molko | £ 88,524,189 | |
| 11465 | Molly | £ 58,389,036 | |
| 11466 | Molokozavod | £ 8,147,120 | |
| 11467 | Molotov | £ 4,678,705,578 | |
| 11468 | Moltisanti | £ 88,259,217 | |
| 11469 | Moltke Enterprises | £ 58,439,943 | |
| 11470 | mom | £ 279,933,138 | |
| 11471 | MomCorp | £ 1,768,330 | |
| 11472 | Moment | £ 50,000 | |
| 11473 | Moments | £ 13,838,455 | |
| 11474 | MommaJune | £ 5,871,123 | |
| 11475 | Mommy | £ 7,669,413 | |
| 11476 | MOMOO | £ 147,977 | |
| 11477 | Moms diner | £ 125,413 | |
| 11478 | Mon | £ 8,704,871 | |
| 11479 | Monaco | £ 43,667,263 | |
| 11480 | Monarchic | £ 27,179,904 | |
| 11481 | Monastery | £ 1,678,761 | |
| 11482 | Moncrot | £ 2,803,567 | |
| 11483 | Moncton | £ 577,953,358 | |
| 11484 | Monetary Policy | £ -1,515,538 | |
| 11485 | Money | £ 56,804,752 | |
| 11486 | Money Bags | £ 4,555,558 | |
| 11487 | Money Club | £ 3,724,557 | |
| 11488 | Money Heist | £ 75,741,351 | |
| 11489 | Money Inc. | £ 5,469,873 | |
| 11490 | Money Laundering | £ 261,958,225 | |
| 11491 | Money Lenders | £ 11,476,352 | |
| 11492 | Money Ltd | £ 4,615,437 | |
| 11493 | money mad | £ 3,798,586 | |
| 11494 | Money Maker | £ 5,061,369 | |
| 11495 | Money Mule | £ 893,799 | |
| 11496 | Money Shop | £ 203,493 | |
| 11497 | Money to Blow | £ 197,577,555 | |
| 11498 | Money Train | £ 5,507,812 | |
| 11499 | Moneyball | £ 83,351,921 | |
| 11500 | MoneyInc | £ 30,406,225 | |
