The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 13001 | mistaken yidentit | £ 20,847,058 | |
| 13002 | Mistakes | £ 24,462,673 | |
| 13003 | Mistakes were made | £ 50,724,189 | |
| 13004 | mister | £ 15,343,639 | |
| 13005 | Mister Mister | £ 25,037,060 | |
| 13006 | Mistree | £ 50,000 | |
| 13007 | Mitchell Ltd | £ -2,115,101 | |
| 13008 | Mitchell Ltd2 | £ -1,529,234 | |
| 13009 | Mitchell Ltd3 | £ 5,496,523 | |
| 13010 | Mitchell Ltd4 | £ 4,625,817 | |
| 13011 | Mitigating Circumstances | £ 162,513,039 | |
| 13012 | Mitres | £ 684,354,522 | |
| 13013 | mix | £ 11,825,750 | |
| 13014 | Mixture | £ 34,126,543 | |
| 13015 | Mizuko Holdings | £ 50,000 | |
| 13016 | MJHCo. | £ 81,836,520 | |
| 13017 | MJI | £ 5,141,163 | |
| 13018 | MJII | £ 1,514,759 | |
| 13019 | MJIII | £ 1,341,503 | |
| 13020 | MJIV | £ 334,370 | |
| 13021 | MJJ Incorporated | £ 928,297,129 | |
| 13022 | MJLee | £ 12,045,209 | |
| 13023 | MJM 2 | £ 50,000 | |
| 13024 | MJM Games | £ 921,860 | |
| 13025 | Mjolnir | £ 6,893,038,254 | |
| 13026 | MK II | £ -371,982 | |
| 13027 | MK Ultra | £ -17,913,353 | |
| 13028 | Mk11 | £ 106,533,871 | |
| 13029 | MKL | £ 4,921,226,079 | |
| 13030 | MKUltra | £ 45,139,298 | |
| 13031 | mkyumku | £ 1,322,486 | |
| 13032 | mlawenterprise | £ 206,267,702 | |
| 13033 | mlawenterprises | £ 74,433,740 | |
| 13034 | MLM | £ 12,819,582,583 | |
| 13035 | MLM Group | £ 85,259,170 | |
| 13036 | MMI | £ 3,194,811 | |
| 13037 | MMI Holdings | £ 2,450,207 | |
| 13038 | MMI2 | £ 4,617,014 | |
| 13039 | MMI3 | £ 161,241 | |
| 13040 | mmmHHHMmm | £ 1,268,288 | |
| 13041 | MMMM CAKE | £ 11,700,419 | |
| 13042 | MMORPG | £ 386,202,529 | |
| 13043 | MMS | £ 728,736 | |
| 13044 | MN Painting | £ 69,865,838 | |
| 13045 | mnb | £ 5,869,704 | |
| 13046 | MNGA | £ -591,189 | |
| 13047 | Mnv | £ 69,523,625 | |
| 13048 | Mo Alba | £ 497,470,179 | |
| 13049 | MOAB | £ 50,000 | |
| 13050 | moarbkup | £ 5,508,731 | |
| 13051 | moarCarparks | £ 5,546,279 | |
| 13052 | MOASS | £ 10,968,075 | |
| 13053 | Mob Life Inc | £ 5,489,924 | |
| 13054 | Mob Mentality | £ 3,456,883 | |
| 13055 | Mobbin Service | £ 37,804,870 | |
| 13056 | Mod786 | £ 28,058,765 | |
| 13057 | Mod7866 | £ 5,631,868 | |
| 13058 | Mode | £ 401,332,556 | |
| 13059 | model | £ 126,900,274 | |
| 13060 | Model 1910 | £ 15,519,029 | |
| 13061 | Model in Black | £ 32,036,184 | |
| 13062 | model1 | £ 298,042,055 | |
| 13063 | Moderate Pharmaceuticals | £ 7,403,273 | |
| 13064 | Modern Chemistry | £ 50,000 | |
| 13065 | Modern Day Filth | £ 39,727,103 | |
| 13066 | modern homes and windows | £ 60,782,477 | |
| 13067 | Modus operandi | £ 273,166,437 | |
| 13068 | mog | £ 62,817,831 | |
| 13069 | MoguMogu | £ 50,000 | |
| 13070 | Mogwai | £ 2,484,565,998 | |
| 13071 | Mohawk | £ 5,884,779 | |
| 13072 | mohicans | £ 87,704,089 | |
| 13073 | Mojacar | £ 120,096,958 | |
| 13074 | Mojacar Playa | £ 4,415,605 | |
| 13075 | MojoMonies | £ -11,896,511 | |
| 13076 | Mojon Inc | £ 2,533,275 | |
| 13077 | Moldy Bread | £ 3,146,415 | |
| 13078 | Mole | £ 2,572,348 | |
| 13079 | molenstraat | £ 2,013,822 | |
| 13080 | Molko | £ 88,524,189 | |
| 13081 | Molly | £ 58,389,036 | |
| 13082 | Molokozavod | £ 8,147,120 | |
| 13083 | Molotov | £ 4,678,705,578 | |
| 13084 | Moltisanti | £ 88,259,217 | |
| 13085 | Moltke Enterprises | £ 58,439,943 | |
| 13086 | mom | £ 316,315,222 | |
| 13087 | MomCorp | £ 1,768,330 | |
| 13088 | Moment | £ 50,000 | |
| 13089 | Moments | £ 63,735,380 | |
| 13090 | MommaJune | £ 5,871,123 | |
| 13091 | Mommy | £ 7,669,413 | |
| 13092 | Mommy Momma Mom Ma Ma Ma | £ 281,001,077 | |
| 13093 | MOMOO | £ 147,977 | |
| 13094 | Moms diner | £ 125,413 | |
| 13095 | Mon | £ 8,704,871 | |
| 13096 | Monaco | £ 43,667,263 | |
| 13097 | Monarchic | £ 27,179,904 | |
| 13098 | Monastery | £ 1,678,761 | |
| 13099 | Moncrot | £ 2,803,567 | |
| 13100 | Moncton | £ 577,953,358 | |
