The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 14301 | Mirror | £ 81,046,054 | |
| 14302 | Mirror Man Plc | £ 4,072,130 | |
| 14303 | Mirrors | £ 6,003,168 | |
| 14304 | Misadventure | £ 77,791,239 | |
| 14305 | Misanthropy Inc | £ 35,458,218 | |
| 14306 | MISC | £ 117,078,987 | |
| 14307 | Miscalculation | £ 206,972,042 | |
| 14308 | Mischief | £ 434,575,142 | |
| 14309 | Misconduct | £ 114,692,713 | |
| 14310 | Misery Publishing | £ 59,419,185 | |
| 14311 | Misfit | £ 52,650,253 | |
| 14312 | Misfortune | £ 188,798,028 | |
| 14313 | Mish Mash | £ 357,712,302 | |
| 14314 | Misinterpretation | £ 486,461 | |
| 14315 | Misrule | £ 8,982,499 | |
| 14316 | Miss Bitch bombers | £ 4,512,007 | |
| 14317 | MissFubar PLC | £ 31,726,370 | |
| 14318 | missile command | £ 363,500,728 | |
| 14319 | Missile Inc | £ 37,431,256 | |
| 14320 | Missiles Incorporated | £ 1,859,206 | |
| 14321 | missing a toe | £ 93,592,827 | |
| 14322 | Mission | £ 166,801,144 | |
| 14323 | Mission Survive | £ 114,950,288 | |
| 14324 | Missionary | £ 72,118,701 | |
| 14325 | Mississippi | £ 5,500,599 | |
| 14326 | Mississippi Burning | £ 47,665,328 | |
| 14327 | Mississippi Dreams | £ 269,344,047 | |
| 14328 | Mississippi Inc | £ 5,281,962 | |
| 14329 | MississippiMusic | £ 2,811,899 | |
| 14330 | MissMikka | £ 79,369,949 | |
| 14331 | MISSOURI | £ 1,148,314,366 | |
| 14332 | Missouri Belle | £ 83,454,986 | |
| 14333 | Missyxx | £ 50,000 | |
| 14334 | Mistake | £ 1,937,719,857 | |
| 14335 | Mistake Not | £ 4,245,817,468 | |
| 14336 | Mistaken Identity | £ 109,775,714 | |
| 14337 | mistaken yidentit | £ 20,847,058 | |
| 14338 | Mistakes | £ 24,462,673 | |
| 14339 | mister | £ 15,343,639 | |
| 14340 | Mister Mister | £ 25,037,060 | |
| 14341 | Mistree | £ 50,000 | |
| 14342 | Misty | £ 24,242,462 | |
| 14343 | Mitchell Ltd | £ -2,115,101 | |
| 14344 | Mitchell Ltd2 | £ -1,529,234 | |
| 14345 | Mitchell Ltd3 | £ 5,496,523 | |
| 14346 | Mitchell Ltd4 | £ 4,625,817 | |
| 14347 | Mithandir | £ 398,278,073 | |
| 14348 | Mitigate | £ 5,805,590 | |
| 14349 | Mitigating Circumstances | £ 162,513,039 | |
| 14350 | Mitres | £ 684,354,522 | |
| 14351 | Mixed Reviews | £ 5,510,398 | |
| 14352 | Mizuko Holdings | £ 50,000 | |
| 14353 | MJHCo. | £ 81,836,520 | |
| 14354 | MJI | £ 5,141,163 | |
| 14355 | MJII | £ 1,514,759 | |
| 14356 | MJIII | £ 1,341,503 | |
| 14357 | MJIV | £ 334,370 | |
| 14358 | MJJ Incorporated | £ 1,023,622,671 | |
| 14359 | MJLee | £ 12,045,209 | |
| 14360 | MJM 2 | £ 50,000 | |
| 14361 | MJM Games | £ 921,860 | |
| 14362 | Mjolnir | £ 8,447,723,519 | |
| 14363 | MJP Enterprises | £ -2,209,310 | |
| 14364 | MK II | £ 50,000 | |
| 14365 | MK Ultra | £ -17,913,353 | |
| 14366 | Mk11 | £ 182,096,165 | |
| 14367 | MkIII Industries | £ 5,121,147 | |
| 14368 | MKL | £ 4,926,291,030 | |
| 14369 | mkyumku | £ 1,322,486 | |
| 14370 | mlawenterprise | £ 206,267,702 | |
| 14371 | mlawenterprises | £ 74,433,740 | |
| 14372 | MLH Industries | £ 31,163,815 | |
| 14373 | MLM | £ 26,401,454,751 | |
| 14374 | MLM Group | £ 153,402,015 | |
| 14375 | MM Holdings | £ 2,154,369,394 | |
| 14376 | MM Holdings 2 | £ 80,869,343 | |
| 14377 | MM Holdings 3 | £ 84,211,543 | |
| 14378 | MM Holdings 4 | £ 82,239,396 | |
| 14379 | MMA | £ 14,208,696 | |
| 14380 | MMI | £ 3,194,811 | |
| 14381 | MMI Holdings | £ 2,450,207 | |
| 14382 | MMI2 | £ 4,617,014 | |
| 14383 | MMI3 | £ 161,241 | |
| 14384 | mmmHHHMmm | £ 1,268,288 | |
| 14385 | MMMM CAKE | £ 11,700,419 | |
| 14386 | MMORPG | £ 386,202,529 | |
| 14387 | MMS | £ 728,736 | |
| 14388 | MN Painting | £ 69,865,838 | |
| 14389 | mnb | £ 5,869,704 | |
| 14390 | MNGA | £ -591,189 | |
| 14391 | Mo Alba | £ 497,470,179 | |
| 14392 | MO Factory | £ 44,387,379 | |
| 14393 | Moa Gu | £ 45,089,899 | |
| 14394 | moarbkup | £ 5,508,731 | |
| 14395 | moarCarparks | £ 5,546,279 | |
| 14396 | MOASS | £ 10,968,075 | |
| 14397 | Mob Life Inc | £ 5,489,924 | |
| 14398 | Mob Mentality | £ 3,456,883 | |
| 14399 | Mob Rule | £ 187,313,616 | |
| 14400 | Mobbin Service | £ 37,804,870 | |
