The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 13201 | Mish Mash | £ 397,309,376 | |
| 13202 | Misrule | £ 201,527,035 | |
| 13203 | Miss Bitch bombers | £ 4,512,007 | |
| 13204 | MissFubar PLC | £ 31,726,370 | |
| 13205 | missile command | £ 363,500,728 | |
| 13206 | Missile Inc | £ 37,431,256 | |
| 13207 | Missiles Incorporated | £ 1,859,206 | |
| 13208 | missing a toe | £ 93,592,827 | |
| 13209 | Mission | £ 166,801,144 | |
| 13210 | Mission impossible | £ 6,930,972 | |
| 13211 | Mission Survive | £ 114,950,288 | |
| 13212 | Missionary | £ 72,118,701 | |
| 13213 | Mississippi | £ 5,500,599 | |
| 13214 | Mississippi Burning | £ 47,665,328 | |
| 13215 | Mississippi Dreams | £ 269,344,047 | |
| 13216 | Mississippi Inc | £ 5,281,962 | |
| 13217 | MississippiMusic | £ 2,811,899 | |
| 13218 | MissMikka | £ 251,676,667 | |
| 13219 | MISSOURI | £ 1,148,314,366 | |
| 13220 | Missouri Belle | £ 83,454,986 | |
| 13221 | Mistake | £ 1,937,719,857 | |
| 13222 | Mistake Not | £ 4,245,817,468 | |
| 13223 | Mistaken Identity | £ 109,775,714 | |
| 13224 | mistaken yidentit | £ 20,847,058 | |
| 13225 | Mistakes | £ 24,462,673 | |
| 13226 | mister | £ 15,343,639 | |
| 13227 | Misty | £ 25,544,385 | |
| 13228 | Mitchell Ltd3 | £ 5,496,523 | |
| 13229 | Mitchell Ltd4 | £ 4,625,817 | |
| 13230 | Mitchelled | £ 5,775,935 | |
| 13231 | Mithandir | £ 398,278,073 | |
| 13232 | Mitigate | £ 5,619,339 | |
| 13233 | Mitigating Circumstances | £ 162,513,039 | |
| 13234 | Mitres | £ 684,354,522 | |
| 13235 | Mitsubishi | £ 12,390,515 | |
| 13236 | MIX IT UP | £ 4,873,606 | |
| 13237 | Mixed Reviews | £ 5,510,398 | |
| 13238 | Mixup | £ 41,039,686 | |
| 13239 | MJHCo. | £ 81,836,520 | |
| 13240 | MJI | £ 5,141,163 | |
| 13241 | MJII | £ 1,514,759 | |
| 13242 | MJIII | £ 1,341,503 | |
| 13243 | MJJ Incorporated | £ 1,023,622,671 | |
| 13244 | MJLee | £ 12,045,209 | |
| 13245 | MJM Games | £ 921,860 | |
| 13246 | Mjolnir | £ 8,738,146,572 | |
| 13247 | Mk11 | £ 101,700,555 | |
| 13248 | MkIII Industries | £ 5,121,147 | |
| 13249 | MKL | £ 5,499,379,278 | |
| 13250 | mkyumku | £ 1,322,486 | |
| 13251 | mlawenterprise | £ 206,267,702 | |
| 13252 | mlawenterprises | £ 74,433,740 | |
| 13253 | MLH Industries | £ 31,163,815 | |
| 13254 | MLM | £ 27,848,237,170 | |
| 13255 | MLM Group | £ 153,402,015 | |
| 13256 | MM Holdings | £ 2,778,329,894 | |
| 13257 | MM Holdings 2 | £ 83,019,205 | |
| 13258 | MM Holdings 3 | £ 79,592,347 | |
| 13259 | MM Holdings 4 | £ 81,014,436 | |
| 13260 | MMA | £ 14,208,696 | |
| 13261 | MMI | £ 3,194,811 | |
| 13262 | MMI Holdings | £ 2,450,207 | |
| 13263 | MMI2 | £ 4,617,014 | |
| 13264 | mmmHHHMmm | £ 1,268,288 | |
| 13265 | MMMM CAKE | £ 11,700,419 | |
| 13266 | MMORPG | £ 386,202,529 | |
| 13267 | MMS | £ 728,736 | |
| 13268 | MN Painting | £ 69,865,838 | |
| 13269 | mnb | £ 5,869,704 | |
| 13270 | Mo Alba | £ 497,470,179 | |
| 13271 | MO Factory | £ 52,455,961 | |
| 13272 | Moa Gu | £ 15,506,286 | |
| 13273 | moarbkup | £ 5,508,731 | |
| 13274 | moarCarparks | £ 5,546,279 | |
| 13275 | MOASS | £ 10,968,075 | |
| 13276 | Mob Life Inc | £ 5,489,924 | |
| 13277 | Mob Mentality | £ 3,456,883 | |
| 13278 | Mob Rule | £ 187,313,616 | |
| 13279 | Mobbin Service | £ 37,804,870 | |
| 13280 | MobLand | £ 49,226,524 | |
| 13281 | Mochrum | £ 1,157,366,209 | |
| 13282 | Mockingbird Heights | £ 644,756,411 | |
| 13283 | Mod786 | £ 28,058,765 | |
| 13284 | Mod7866 | £ 5,631,868 | |
| 13285 | model | £ 126,900,274 | |
| 13286 | Model 1910 | £ 15,519,029 | |
| 13287 | Model in Black | £ 32,036,184 | |
| 13288 | model1 | £ 298,042,055 | |
| 13289 | Moderate Pharmaceuticals | £ 7,403,273 | |
| 13290 | Modern Day Filth | £ 39,727,103 | |
| 13291 | Modern Gaming Prices | £ 91,104,912 | |
| 13292 | modern homes and windows | £ 61,033,378 | |
| 13293 | modern society | £ 17,582,558 | |
| 13294 | Modernization | £ 38,946,426 | |
| 13295 | Modus operandi | £ 270,404,471 | |
| 13296 | mog | £ 62,817,831 | |
| 13297 | Mogwai | £ 2,901,335,813 | |
| 13298 | Mohawk | £ 5,884,779 | |
| 13299 | mohicans | £ 44,789,271 | |
| 13300 | Moist Industries | £ 375,651,044 | |
