The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 11901 | MISSOURI | £ 1,148,314,366 | |
| 11902 | Missyxx | £ 50,000 | |
| 11903 | Mistake | £ 1,937,719,857 | |
| 11904 | Mistake Not | £ 4,245,817,468 | |
| 11905 | Mistaken Identity | £ 109,775,714 | |
| 11906 | mistaken yidentit | £ 20,847,058 | |
| 11907 | Mistakes | £ 24,462,673 | |
| 11908 | mister | £ 15,343,639 | |
| 11909 | Mister Mister | £ 25,037,060 | |
| 11910 | Mistree | £ 50,000 | |
| 11911 | Mitchell Ltd | £ -2,115,101 | |
| 11912 | Mitchell Ltd2 | £ -1,529,234 | |
| 11913 | Mitchell Ltd3 | £ 5,496,523 | |
| 11914 | Mitchell Ltd4 | £ 4,625,817 | |
| 11915 | Mitigating Circumstances | £ 162,513,039 | |
| 11916 | Mitres | £ 684,354,522 | |
| 11917 | mix | £ 11,825,750 | |
| 11918 | Mixture | £ 34,126,543 | |
| 11919 | Mizuko Holdings | £ 50,000 | |
| 11920 | MJHCo. | £ 81,836,520 | |
| 11921 | MJI | £ 5,141,163 | |
| 11922 | MJII | £ 1,514,759 | |
| 11923 | MJIII | £ 1,341,503 | |
| 11924 | MJIV | £ 334,370 | |
| 11925 | MJLee | £ 12,045,209 | |
| 11926 | MJM 2 | £ 50,000 | |
| 11927 | MJM Games | £ 921,860 | |
| 11928 | Mjolnir | £ 6,414,064,386 | |
| 11929 | MK II | £ -371,982 | |
| 11930 | MK Ultra | £ -17,913,353 | |
| 11931 | MKL | £ 3,722,157,398 | |
| 11932 | mkyumku | £ 1,322,486 | |
| 11933 | mlawenterprise | £ 206,267,702 | |
| 11934 | mlawenterprises | £ 74,433,740 | |
| 11935 | MLM | £ 3,575,840,654 | |
| 11936 | MLM Group | £ 85,259,170 | |
| 11937 | MMI | £ 3,194,811 | |
| 11938 | MMI Holdings | £ 2,450,207 | |
| 11939 | MMI2 | £ 4,617,014 | |
| 11940 | MMI3 | £ 161,241 | |
| 11941 | mmmHHHMmm | £ 1,268,288 | |
| 11942 | MMMM CAKE | £ 11,700,419 | |
| 11943 | MMORPG | £ 386,202,529 | |
| 11944 | MMS | £ 728,736 | |
| 11945 | MN Painting | £ 69,865,838 | |
| 11946 | mnb | £ 5,869,704 | |
| 11947 | MNGA | £ -591,189 | |
| 11948 | Mnv | £ 69,523,625 | |
| 11949 | Mo Alba | £ 497,470,179 | |
| 11950 | MOAB | £ 50,000 | |
| 11951 | moarbkup | £ 5,508,731 | |
| 11952 | moarCarparks | £ 5,546,279 | |
| 11953 | Mob Life Inc | £ 5,489,924 | |
| 11954 | Mob Mentality | £ 3,456,883 | |
| 11955 | Mobbin Service | £ 37,804,870 | |
| 11956 | Mod786 | £ 28,058,765 | |
| 11957 | Mod7866 | £ 5,631,868 | |
| 11958 | Mode | £ 401,332,556 | |
| 11959 | model | £ 126,900,274 | |
| 11960 | Model 1910 | £ 15,519,029 | |
| 11961 | Model in Black | £ 32,036,184 | |
| 11962 | model1 | £ 298,042,055 | |
| 11963 | Moderate Pharmaceuticals | £ 7,403,273 | |
| 11964 | Modern Chemistry | £ 50,000 | |
| 11965 | Modern Day Filth | £ 39,727,103 | |
| 11966 | modern homes and windows | £ 60,782,477 | |
| 11967 | Modern Medicine | £ 657,019,061 | |
| 11968 | mog | £ 62,817,831 | |
| 11969 | MoguMogu | £ 50,000 | |
| 11970 | Mogwai | £ 2,414,035,302 | |
| 11971 | Mohawk | £ 5,884,779 | |
| 11972 | mohicans | £ 87,704,089 | |
| 11973 | MojoMonies | £ -11,896,511 | |
| 11974 | Mojon Inc | £ 2,533,275 | |
| 11975 | Moldy Bread | £ 3,146,415 | |
| 11976 | Mole | £ 2,572,348 | |
| 11977 | molenstraat | £ 2,013,822 | |
| 11978 | Molko | £ 88,524,189 | |
| 11979 | Molly | £ 58,389,036 | |
| 11980 | Molokozavod | £ 8,147,120 | |
| 11981 | Molotov | £ 4,678,705,578 | |
| 11982 | Moltisanti | £ 88,259,217 | |
| 11983 | Moltke Enterprises | £ 58,439,943 | |
| 11984 | mom | £ 317,995,877 | |
| 11985 | MomCorp | £ 1,768,330 | |
| 11986 | Moment | £ 50,000 | |
| 11987 | Moments | £ 63,735,380 | |
| 11988 | MommaJune | £ 5,871,123 | |
| 11989 | Mommy | £ 7,669,413 | |
| 11990 | MOMOO | £ 147,977 | |
| 11991 | Moms diner | £ 125,413 | |
| 11992 | Mon | £ 8,704,871 | |
| 11993 | Monaco | £ 43,667,263 | |
| 11994 | Monarchic | £ 27,179,904 | |
| 11995 | Monastery | £ 1,678,761 | |
| 11996 | Moncrot | £ 2,803,567 | |
| 11997 | Moncton | £ 577,953,358 | |
| 11998 | Monetary Policy | £ -1,515,538 | |
| 11999 | Money | £ 56,804,752 | |
| 12000 | Money Bags | £ 4,555,558 | |
