The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 14301 | MississippiMusic | £ 2,811,899 | |
| 14302 | MissMikka | £ 149,464,786 | |
| 14303 | MISSOURI | £ 1,148,314,366 | |
| 14304 | Missouri Belle | £ 83,454,986 | |
| 14305 | Missyxx | £ 50,000 | |
| 14306 | Mistake | £ 1,937,719,857 | |
| 14307 | Mistake Not | £ 4,245,817,468 | |
| 14308 | Mistaken Identity | £ 109,775,714 | |
| 14309 | mistaken yidentit | £ 20,847,058 | |
| 14310 | Mistakes | £ 24,462,673 | |
| 14311 | mister | £ 15,343,639 | |
| 14312 | Mistree | £ 50,000 | |
| 14313 | Misty | £ 21,464,945 | |
| 14314 | Mitchell Ltd | £ -2,115,101 | |
| 14315 | Mitchell Ltd2 | £ -1,529,234 | |
| 14316 | Mitchell Ltd3 | £ 5,496,523 | |
| 14317 | Mitchell Ltd4 | £ 4,625,817 | |
| 14318 | Mithandir | £ 398,278,073 | |
| 14319 | Mitigate | £ 5,106,022 | |
| 14320 | Mitigating Circumstances | £ 162,513,039 | |
| 14321 | Mitres | £ 684,354,522 | |
| 14322 | Mixed Reviews | £ 5,510,398 | |
| 14323 | Mixup | £ 34,059,768 | |
| 14324 | Mizuko Holdings | £ 50,000 | |
| 14325 | MJHCo. | £ 81,836,520 | |
| 14326 | MJI | £ 5,141,163 | |
| 14327 | MJII | £ 1,514,759 | |
| 14328 | MJIII | £ 1,341,503 | |
| 14329 | MJIV | £ 334,370 | |
| 14330 | MJJ Incorporated | £ 1,023,622,671 | |
| 14331 | MJLee | £ 12,045,209 | |
| 14332 | MJM 2 | £ 50,000 | |
| 14333 | MJM Games | £ 921,860 | |
| 14334 | Mjolnir | £ 8,550,419,119 | |
| 14335 | MJP Enterprises | £ -2,209,310 | |
| 14336 | MK II | £ 50,000 | |
| 14337 | MK Ultra | £ -17,913,353 | |
| 14338 | Mk11 | £ 182,096,165 | |
| 14339 | MkIII Industries | £ 5,121,147 | |
| 14340 | MKL | £ 4,926,291,030 | |
| 14341 | mkyumku | £ 1,322,486 | |
| 14342 | mlawenterprise | £ 206,267,702 | |
| 14343 | mlawenterprises | £ 74,433,740 | |
| 14344 | MLH Industries | £ 31,163,815 | |
| 14345 | MLM | £ 27,327,418,195 | |
| 14346 | MLM Group | £ 153,402,015 | |
| 14347 | MM Holdings | £ 2,586,329,894 | |
| 14348 | MM Holdings 2 | £ 86,987,937 | |
| 14349 | MM Holdings 3 | £ 80,224,040 | |
| 14350 | MM Holdings 4 | £ 86,365,211 | |
| 14351 | MMA | £ 14,208,696 | |
| 14352 | MMI | £ 3,194,811 | |
| 14353 | MMI Holdings | £ 2,450,207 | |
| 14354 | MMI2 | £ 4,617,014 | |
| 14355 | MMI3 | £ 161,241 | |
| 14356 | mmmHHHMmm | £ 1,268,288 | |
| 14357 | MMMM CAKE | £ 11,700,419 | |
| 14358 | MMORPG | £ 386,202,529 | |
| 14359 | MMS | £ 728,736 | |
| 14360 | MN Painting | £ 69,865,838 | |
| 14361 | mnb | £ 5,869,704 | |
| 14362 | MNGA | £ -591,189 | |
| 14363 | Mo Alba | £ 497,470,179 | |
| 14364 | MO Factory | £ 52,455,961 | |
| 14365 | Moa Gu | £ 74,124,028 | |
| 14366 | moarbkup | £ 5,508,731 | |
| 14367 | moarCarparks | £ 5,546,279 | |
| 14368 | MOASS | £ 10,968,075 | |
| 14369 | Mob Life Inc | £ 5,489,924 | |
| 14370 | Mob Mentality | £ 3,456,883 | |
| 14371 | Mob Rule | £ 187,313,616 | |
| 14372 | Mobbin Service | £ 37,804,870 | |
| 14373 | MobLand | £ 50,929,903 | |
| 14374 | Mochrum | £ 1,072,926,569 | |
| 14375 | Mockingbird Heights | £ 483,756,411 | |
| 14376 | Mod786 | £ 28,058,765 | |
| 14377 | Mod7866 | £ 5,631,868 | |
| 14378 | model | £ 126,900,274 | |
| 14379 | Model 1910 | £ 15,519,029 | |
| 14380 | Model in Black | £ 32,036,184 | |
| 14381 | model1 | £ 298,042,055 | |
| 14382 | Moderate Pharmaceuticals | £ 7,403,273 | |
| 14383 | Modern Chemistry | £ 50,000 | |
| 14384 | Modern Day Filth | £ 39,727,103 | |
| 14385 | Modern Gaming Prices | £ 91,104,912 | |
| 14386 | modern homes and windows | £ 61,033,378 | |
| 14387 | modern society | £ 43,747,973 | |
| 14388 | Modernization | £ 38,946,426 | |
| 14389 | Modus operandi | £ 270,583,495 | |
| 14390 | mog | £ 62,817,831 | |
| 14391 | MoguMogu | £ 50,000 | |
| 14392 | Mogwai | £ 2,864,817,576 | |
| 14393 | Mohawk | £ 5,884,779 | |
| 14394 | mohicans | £ 87,704,089 | |
| 14395 | Moist Industries | £ 375,651,044 | |
| 14396 | Mojacar | £ 141,096,958 | |
| 14397 | MojoMonies | £ -11,896,511 | |
| 14398 | molenstraat | £ 2,013,822 | |
| 14399 | Molko | £ 88,524,189 | |
| 14400 | Molly | £ 58,389,036 | |
