The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 12701 | Mayday | £ 1,957,450 | |
| 12702 | Mayfair | £ 39,066,817 | |
| 12703 | Mayhem | £ 116,618,582 | |
| 12704 | Mayoland Inc. | £ -390,754 | |
| 12705 | Maz1 | £ 4,123,280 | |
| 12706 | Maz2 | £ 4,145,139 | |
| 12707 | Maz3 | £ 4,137,031 | |
| 12708 | Maz4 | £ 4,101,386 | |
| 12709 | Maziacs | £ 214,690,206 | |
| 12710 | MazManInc | £ 258,718 | |
| 12711 | mbm | £ 81,202,527 | |
| 12712 | Mc Dowells 2.0 | £ 14,294,011 | |
| 12713 | mc3 | £ 62,358,543 | |
| 12714 | McBombFace | £ 3,871,640 | |
| 12715 | Mcboobs Knocking Shops | £ 27,084 | |
| 12716 | mcbuttface | £ 3,955,729 | |
| 12717 | McCann Ind | £ -29,449 | |
| 12718 | McCompanyFace | £ 123,872,311 | |
| 12719 | McCon Inc. | £ 82,346,992 | |
| 12720 | McCormick Enterprises | £ 704,217 | |
| 12721 | McCullagh | £ 42,631,719 | |
| 12722 | McDAB | £ 76,475,382 | |
| 12723 | McDavid | £ 5,507,687 | |
| 12724 | McDonalds | £ 18,885,463 | |
| 12725 | Mcdonalds Corporation | £ 134,518,979 | |
| 12726 | McDonaldsZim | £ 63,176,931 | |
| 12727 | McDuck Enterprises | £ 122,247,010 | |
| 12728 | McDumponface | £ 3,660 | |
| 12729 | McFadden | £ -131,571 | |
| 12730 | Mcfc88 | £ 10,404,015 | |
| 12731 | McGeeters | £ 83,681 | |
| 12732 | McGill | £ 55,076,173 | |
| 12733 | McGirk Waste Management | £ 86,656 | |
| 12734 | MCI Communications | £ 134,374,955 | |
| 12735 | McIntyre | £ 65,248,776 | |
| 12736 | Mclaren Mercedes | £ 2,778,685 | |
| 12737 | McLovin | £ 2,299,983 | |
| 12738 | mcm | £ 57,999,853 | |
| 12739 | McMurray | £ 243,582,984 | |
| 12740 | McNasty Burgers | £ 61,139,769 | |
| 12741 | MCOC | £ 56,966,011 | |
| 12742 | Mcsmash | £ -11,927 | |
| 12743 | MDD Company | £ 34,883,687 | |
| 12744 | MDD3 company | £ 52,874,397 | |
| 12745 | MDD4 company | £ 39,561,399 | |
| 12746 | MDMA | £ 58,653,746 | |
| 12747 | Mdog 4 life | £ 233,659,584 | |
| 12748 | Mdog Enterprises | £ 164,256,199 | |
| 12749 | MDP | £ 131,751,454 | |
| 12750 | MDW Business | £ 5,507,240 | |
| 12751 | Me And I | £ 629,795 | |
| 12752 | me corp | £ 2,801,416 | |
| 12753 | Me crack in | £ 131,344,322 | |
| 12754 | Me Only | £ 4,926,881 | |
| 12755 | Me Please | £ 82,095,731 | |
| 12756 | Me Silly | £ 106,123,518 | |
| 12757 | Me to see | £ 62,947,323 | |
| 12758 | Me, Im Counting | £ 4,820,143,977 | |
| 12759 | MEA | £ 356,839,045 | |
| 12760 | Meadow | £ 349,035,541 | |
| 12761 | Meal Time | £ 53,033,234 | |
| 12762 | Mean and Deadly LTD | £ 10,098,464 | |
| 12763 | Mean Electricity Ltd | £ -5,065,941 | |
| 12764 | Mean Machine | £ 174,484,012 | |
| 12765 | Mean Machine 10 | £ 101,887,250 | |
| 12766 | Mean Machine 11 | £ 83,273,024 | |
| 12767 | Mean Machine 12 | £ 24,847,409 | |
| 12768 | Mean Machine 2 | £ 112,632,517 | |
| 12769 | Mean Machine 3 | £ 125,726,960 | |
| 12770 | Mean Machine 4 | £ 180,450,398 | |
| 12771 | Mean Machine 5 | £ 160,955,182 | |
| 12772 | Mean Machine 6 | £ 135,487,477 | |
| 12773 | Mean Machine 7 | £ 104,371,655 | |
| 12774 | Mean Machine 8 | £ 124,950,567 | |
| 12775 | Mean Machine 9 | £ 104,923,716 | |
| 12776 | Meanies | £ 8,065,960 | |
| 12777 | Meaning | £ 261,740,977 | |
| 12778 | meanmoney | £ 288,694 | |
| 12779 | Means | £ 1,785,933,109 | |
| 12780 | Means Motive Opportunity | £ 1,206,488,561 | |
| 12781 | Meastro2 | £ 239,761 | |
| 12782 | Measurement | £ 1,528,484,989 | |
| 12783 | MEAT | £ 67,857,491 | |
| 12784 | meat locker | £ 4,528,034 | |
| 12785 | Meat popsticle | £ 18,382,336 | |
| 12786 | meats | £ 682,792,016 | |
| 12787 | MeatSacks LTD | £ 3,245,824 | |
| 12788 | Meatwads Dance Xplosion | £ 14,858,073 | |
| 12789 | mebers^6 | £ 1,012,181 | |
| 12790 | Mechanical Knowledge | £ 103,853,932 | |
| 12791 | Mechastein | £ 113,756,702 | |
| 12792 | Mechastein Inc | £ 60,914,193 | |
| 12793 | Mechrock | £ 397,826,364 | |
| 12794 | Media Market | £ 31,425,226 | |
| 12795 | Media Player | £ 11,385,898 | |
| 12796 | Medical City | £ 1,742,799,907 | |
| 12797 | Medications | £ 47,040,035 | |
| 12798 | Medicine | £ 107,658,336 | |
| 12799 | Medicine.Com | £ 184,984,146 | |
| 12800 | Medient | £ 508,983 | |
