The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 14201 | Mitchell Ltd3 | £ 5,496,523 | |
| 14202 | Mitchell Ltd4 | £ 4,625,817 | |
| 14203 | Mithandir | £ 398,278,073 | |
| 14204 | Mitigating Circumstances | £ 162,513,039 | |
| 14205 | Mitres | £ 684,354,522 | |
| 14206 | Mixed Reviews | £ 5,510,398 | |
| 14207 | Mizuko Holdings | £ 50,000 | |
| 14208 | MJHCo. | £ 81,836,520 | |
| 14209 | MJI | £ 5,141,163 | |
| 14210 | MJII | £ 1,514,759 | |
| 14211 | MJIII | £ 1,341,503 | |
| 14212 | MJIV | £ 334,370 | |
| 14213 | MJJ Incorporated | £ 1,023,622,671 | |
| 14214 | MJLee | £ 12,045,209 | |
| 14215 | MJM 2 | £ 50,000 | |
| 14216 | MJM Games | £ 921,860 | |
| 14217 | Mjolnir | £ 8,356,723,789 | |
| 14218 | MK II | £ 50,000 | |
| 14219 | MK Ultra | £ -17,913,353 | |
| 14220 | Mk11 | £ 182,096,165 | |
| 14221 | MkIII Industries | £ 5,121,147 | |
| 14222 | MKL | £ 4,926,291,030 | |
| 14223 | mkyumku | £ 1,322,486 | |
| 14224 | mlawenterprise | £ 206,267,702 | |
| 14225 | mlawenterprises | £ 74,433,740 | |
| 14226 | MLH Industries | £ 31,163,815 | |
| 14227 | MLM | £ 26,134,477,961 | |
| 14228 | MLM Group | £ 153,402,015 | |
| 14229 | MM Holdings | £ 1,848,369,394 | |
| 14230 | MM Holdings 2 | £ 85,396,726 | |
| 14231 | MM Holdings 3 | £ 78,094,428 | |
| 14232 | MM Holdings 4 | £ 85,234,725 | |
| 14233 | MMA | £ 14,208,696 | |
| 14234 | MMI | £ 3,194,811 | |
| 14235 | MMI Holdings | £ 2,450,207 | |
| 14236 | MMI2 | £ 4,617,014 | |
| 14237 | MMI3 | £ 161,241 | |
| 14238 | mmmHHHMmm | £ 1,268,288 | |
| 14239 | MMMM CAKE | £ 11,700,419 | |
| 14240 | MMORPG | £ 386,202,529 | |
| 14241 | MMS | £ 728,736 | |
| 14242 | MN Painting | £ 69,865,838 | |
| 14243 | mnb | £ 5,869,704 | |
| 14244 | MNGA | £ -591,189 | |
| 14245 | Mo Alba | £ 497,470,179 | |
| 14246 | Moa Gu | £ 45,418,322 | |
| 14247 | moarbkup | £ 5,508,731 | |
| 14248 | moarCarparks | £ 5,546,279 | |
| 14249 | MOASS | £ 10,968,075 | |
| 14250 | Mob Life Inc | £ 5,489,924 | |
| 14251 | Mob Mentality | £ 3,456,883 | |
| 14252 | Mob Rule | £ 187,313,616 | |
| 14253 | Mobbin Service | £ 37,804,870 | |
| 14254 | MobLand | £ 33,955,998 | |
| 14255 | Mochrum | £ 981,303,341 | |
| 14256 | Mockingbird Heights | £ 248,789,923 | |
| 14257 | Mod786 | £ 28,058,765 | |
| 14258 | Mod7866 | £ 5,631,868 | |
| 14259 | model | £ 126,900,274 | |
| 14260 | Model 1910 | £ 15,519,029 | |
| 14261 | Model in Black | £ 32,036,184 | |
| 14262 | model1 | £ 298,042,055 | |
| 14263 | Moderate Pharmaceuticals | £ 7,403,273 | |
| 14264 | Modern Chemistry | £ 50,000 | |
| 14265 | Modern Day Filth | £ 39,727,103 | |
| 14266 | Modern Gaming Prices | £ 35,124,670 | |
| 14267 | modern homes and windows | £ 61,033,378 | |
| 14268 | Modus operandi | £ 264,943,372 | |
| 14269 | mog | £ 62,817,831 | |
| 14270 | MoguMogu | £ 50,000 | |
| 14271 | Mogwai | £ 2,752,864,537 | |
| 14272 | Mohawk | £ 5,884,779 | |
| 14273 | mohicans | £ 87,704,089 | |
| 14274 | MoIIy | £ 22,448,748 | |
| 14275 | MoIly | £ 15,318,712 | |
| 14276 | Moist Industries | £ 375,651,044 | |
| 14277 | Mojacar | £ 141,096,958 | |
| 14278 | MojoMonies | £ -11,896,511 | |
| 14279 | molenstraat | £ 2,013,822 | |
| 14280 | Molko | £ 88,524,189 | |
| 14281 | Molly | £ 58,389,036 | |
| 14282 | Molokozavod | £ 8,147,120 | |
| 14283 | Molotov | £ 4,678,705,578 | |
| 14284 | Moltara | £ 54,192,732 | |
| 14285 | Moltisanti | £ 88,259,217 | |
| 14286 | Moltke Enterprises | £ 58,439,943 | |
| 14287 | mom | £ 316,315,222 | |
| 14288 | MomCorp | £ 1,768,330 | |
| 14289 | Moment | £ 50,000 | |
| 14290 | Moments | £ 63,735,380 | |
| 14291 | momhap | £ 264,798,321 | |
| 14292 | MommaJune | £ 5,871,123 | |
| 14293 | mommy issues | £ 25,096,971 | |
| 14294 | MOMOO | £ 147,977 | |
| 14295 | Moms diner | £ 125,413 | |
| 14296 | Mon | £ 8,704,871 | |
| 14297 | Mona Lisa | £ 13,002,362 | |
| 14298 | Monaco | £ 43,667,263 | |
| 14299 | Monarch | £ 934,949 | |
| 14300 | Monarchic | £ 27,179,904 | |
