The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 10701 | Mississippi Inc | £ 5,281,962 | |
| 10702 | MississippiMusic | £ 2,811,899 | |
| 10703 | MISSOURI | £ 1,152,572,020 | |
| 10704 | Missyxx | £ 50,000 | |
| 10705 | Mistake | £ 1,937,719,857 | |
| 10706 | Mistake Not | £ 4,245,817,468 | |
| 10707 | Mistaken Identity | £ 109,775,714 | |
| 10708 | mistaken yidentit | £ 20,847,058 | |
| 10709 | Mistakes | £ 24,462,673 | |
| 10710 | mister | £ 15,343,639 | |
| 10711 | Mistree | £ 50,000 | |
| 10712 | Mitchell Ltd | £ -2,115,101 | |
| 10713 | Mitchell Ltd2 | £ -1,529,234 | |
| 10714 | Mitchell Ltd3 | £ 5,496,523 | |
| 10715 | Mitchell Ltd4 | £ 4,625,817 | |
| 10716 | Mitigating Circumstances | £ 162,513,039 | |
| 10717 | Mitres | £ 684,354,522 | |
| 10718 | mix | £ 11,825,750 | |
| 10719 | Mixture | £ 34,126,543 | |
| 10720 | Mizuko Holdings | £ 50,000 | |
| 10721 | MJHCo. | £ 81,836,520 | |
| 10722 | MJI | £ 5,141,163 | |
| 10723 | MJII | £ 1,514,759 | |
| 10724 | MJIII | £ 1,341,503 | |
| 10725 | MJIV | £ 334,370 | |
| 10726 | MJLee | £ 12,045,209 | |
| 10727 | MJM 2 | £ 50,000 | |
| 10728 | MJM Games | £ 921,860 | |
| 10729 | Mjolnir | £ 5,478,909,725 | |
| 10730 | MK II | £ -371,982 | |
| 10731 | MK Ultra | £ -17,913,353 | |
| 10732 | MKL | £ 3,182,122,075 | |
| 10733 | mkyumku | £ 1,322,486 | |
| 10734 | mlawenterprise | £ 206,267,702 | |
| 10735 | mlawenterprises | £ 74,433,740 | |
| 10736 | MLM Group | £ 85,259,170 | |
| 10737 | MMI | £ 3,194,811 | |
| 10738 | MMI Holdings | £ 2,450,207 | |
| 10739 | MMI2 | £ 4,617,014 | |
| 10740 | MMI3 | £ 161,241 | |
| 10741 | mmmHHHMmm | £ 1,268,288 | |
| 10742 | MMMM CAKE | £ 11,700,419 | |
| 10743 | MMORPG | £ 42,583,330 | |
| 10744 | MMS | £ 728,736 | |
| 10745 | MN Painting | £ 40,314,589 | |
| 10746 | mnb | £ 5,869,704 | |
| 10747 | Mnv | £ 69,523,625 | |
| 10748 | Mo Alba | £ 306,039,521 | |
| 10749 | MOAB | £ 50,000 | |
| 10750 | moarbkup | £ 5,508,731 | |
| 10751 | moarCarparks | £ 5,546,279 | |
| 10752 | Mob Life Inc | £ 5,489,924 | |
| 10753 | Mob Mentality | £ 3,456,883 | |
| 10754 | Mobbin Service | £ 37,804,870 | |
| 10755 | Mod786 | £ 28,058,765 | |
| 10756 | Mod7866 | £ 5,631,868 | |
| 10757 | Mode | £ 401,332,556 | |
| 10758 | model | £ 126,900,274 | |
| 10759 | Model 1910 | £ 15,519,029 | |
| 10760 | Model in Black | £ 32,036,184 | |
| 10761 | model1 | £ 298,042,055 | |
| 10762 | Moderate Pharmaceuticals | £ 7,403,273 | |
| 10763 | Modern Chemistry | £ 50,000 | |
| 10764 | Modern Day Filth | £ 39,727,103 | |
| 10765 | modern homes and windows | £ 7,559,098 | |
| 10766 | Modern Medicine | £ 535,288,451 | |
| 10767 | mog | £ 62,817,831 | |
| 10768 | MoguMogu | £ 50,000 | |
| 10769 | Mogwai | £ 2,155,817,769 | |
| 10770 | Mohawk | £ 5,884,779 | |
| 10771 | mohicans | £ 87,704,089 | |
| 10772 | MojoMonies | £ -11,896,511 | |
| 10773 | Mojon Inc | £ 2,533,275 | |
| 10774 | Moldy Bread | £ 3,146,415 | |
| 10775 | Mole | £ 2,572,348 | |
| 10776 | molenstraat | £ 2,013,822 | |
| 10777 | Molko | £ 88,524,189 | |
| 10778 | Molly | £ 58,389,036 | |
| 10779 | Molokozavod | £ 8,147,120 | |
| 10780 | Molotov | £ 4,672,705,578 | |
| 10781 | Moltisanti | £ 84,213,087 | |
| 10782 | Moltke Enterprises | £ 58,439,943 | |
| 10783 | mom | £ 95,607,678 | |
| 10784 | MomCorp | £ 1,768,330 | |
| 10785 | Moment | £ 50,000 | |
| 10786 | Moments | £ 13,838,455 | |
| 10787 | MommaJune | £ 5,871,123 | |
| 10788 | Mommy | £ 7,669,413 | |
| 10789 | MOMOO | £ 147,977 | |
| 10790 | Moms diner | £ 125,413 | |
| 10791 | Mon | £ 8,704,871 | |
| 10792 | Monaco | £ 43,667,263 | |
| 10793 | Monarchic | £ 27,179,904 | |
| 10794 | Monastery | £ 1,678,761 | |
| 10795 | Moncrot | £ 2,803,567 | |
| 10796 | Moncton | £ 252,860,791 | |
| 10797 | Monetary Policy | £ -1,515,538 | |
| 10798 | Money | £ 56,804,752 | |
| 10799 | Money Bags | £ 4,555,558 | |
| 10800 | Money Club | £ 3,724,557 | |
