The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 13001 | Mean Machine 12 | £ 24,847,409 | |
| 13002 | Mean Machine 2 | £ 112,632,517 | |
| 13003 | Mean Machine 3 | £ 125,726,960 | |
| 13004 | Mean Machine 4 | £ 180,450,398 | |
| 13005 | Mean Machine 5 | £ 160,955,182 | |
| 13006 | Mean Machine 6 | £ 135,487,477 | |
| 13007 | Mean Machine 7 | £ 104,371,655 | |
| 13008 | Mean Machine 8 | £ 124,950,567 | |
| 13009 | Mean Machine 9 | £ 104,923,716 | |
| 13010 | Meanies | £ 8,065,960 | |
| 13011 | Meaning | £ 261,740,977 | |
| 13012 | meanmoney | £ 288,694 | |
| 13013 | Means | £ 1,785,933,109 | |
| 13014 | Means Motive Opportunity | £ 1,252,481,165 | |
| 13015 | Meastro2 | £ 4,609,257 | |
| 13016 | Measurement | £ 1,528,484,989 | |
| 13017 | MEAT | £ 67,857,491 | |
| 13018 | meat locker | £ 4,528,034 | |
| 13019 | Meat popsticle | £ 18,382,336 | |
| 13020 | meats | £ 682,792,016 | |
| 13021 | MeatSacks LTD | £ 3,245,824 | |
| 13022 | Meatwads Dance Xplosion | £ 14,858,073 | |
| 13023 | mebers^6 | £ 1,012,181 | |
| 13024 | Mechanical Knowledge | £ 103,853,932 | |
| 13025 | Mechastein | £ 113,756,702 | |
| 13026 | Mechastein Inc | £ 60,914,193 | |
| 13027 | Mechrock | £ 397,826,364 | |
| 13028 | Medellin | £ 3,947,624 | |
| 13029 | Medellin1 | £ 3,819,046 | |
| 13030 | Medellin10 | £ 3,150,348 | |
| 13031 | Medellin11 | £ 33,517,435 | |
| 13032 | Medellin12 | £ 2,979,201 | |
| 13033 | Medellin13 | £ 21,992,611 | |
| 13034 | Medellin14 | £ 3,588,353 | |
| 13035 | Medellin15 | £ 20,954,903 | |
| 13036 | Medellin16 | £ 18,115,001 | |
| 13037 | Medellin17 | £ 12,691,253 | |
| 13038 | Medellin18 | £ 9,314,605 | |
| 13039 | Medellin19 | £ 8,451,488 | |
| 13040 | Medellin2 | £ 10,490,512 | |
| 13041 | Medellin3 | £ 3,139,225 | |
| 13042 | Medellin4 | £ 18,332,825 | |
| 13043 | Medellin5 | £ 3,493,643 | |
| 13044 | Medellin6 | £ 20,403,495 | |
| 13045 | Medellin7 | £ 27,249,797 | |
| 13046 | Medellin8 | £ 3,640,286 | |
| 13047 | Medellin9 | £ 26,400,110 | |
| 13048 | Media Market | £ 31,425,226 | |
| 13049 | Media Player | £ 11,385,898 | |
| 13050 | Medical City | £ 1,742,799,907 | |
| 13051 | Medications | £ 56,501,237 | |
| 13052 | Medicine | £ 107,658,336 | |
| 13053 | Medicine.Com | £ 184,984,146 | |
| 13054 | Medient | £ 508,983 | |
| 13055 | Mediolanum | £ 31,817,195 | |
| 13056 | Mediumship | £ 464,431,181 | |
| 13057 | MedPharm | £ 62,403,617 | |
| 13058 | Medusa | £ 290,947,180 | |
| 13059 | Medwain | £ 110,111,172 | |
| 13060 | Mee | £ 27,657,186 | |
| 13061 | Meebs | £ 44,841,824 | |
| 13062 | Meeney Corp | £ 9,839,052 | |
| 13063 | Meeny Inc | £ 22,570,987 | |
| 13064 | Meep meep | £ 493,156,074 | |
| 13065 | Meerkats | £ 550,594,543 | |
| 13066 | MEG LTD | £ 23,571 | |
| 13067 | Mega Blox | £ 26,530,781,518 | |
| 13068 | MEGA BUDZ | £ 141,053 | |
| 13069 | Mega Corporation | £ 172,049 | |
| 13070 | Mega Corporations | £ 46,579,095 | |
| 13071 | Mega Mindy | £ 4,096,781 | |
| 13072 | Mega Mullets | £ 94,485,108 | |
| 13073 | MEGA Resources | £ 572,731 | |
| 13074 | Mega Streak | £ 21,265,036 | |
| 13075 | Megababy Co. | £ 50,000 | |
| 13076 | Megabucks | £ 111,934 | |
| 13077 | Megabucks Dundee | £ 50,000 | |
| 13078 | Megabucks Inc | £ 5,930,887 | |
| 13079 | Megabucks United | £ 4,290,972 | |
| 13080 | Megabyte Systems | £ 189,585,683 | |
| 13081 | Megacorp | £ 594,680 | |
| 13082 | MEGACUCKxXxPEENLOVER | £ 6,893,653 | |
| 13083 | Megadeth | £ 65,357,403 | |
| 13084 | MegaDeth Mob | £ 61,516,745 | |
| 13085 | MegaloMafia | £ 612,786 | |
| 13086 | megamolloy | £ 2,797,245 | |
| 13087 | megamolloy3 | £ 4,226,104 | |
| 13088 | megapolis | £ 27,651,775 | |
| 13089 | Megasuperbadass Mart | £ 2,903,109 | |
| 13090 | Megaton | £ 290,639,244 | |
| 13091 | Megaton Atomic Research | £ 7,533,717 | |
| 13092 | Megatron | £ 397,174,154 | |
| 13093 | Mehoff Erection Co | £ 4,005,620 | |
| 13094 | Mehrunes Dagon | £ 293,312,589 | |
| 13095 | Mein Kampf | £ 183,164,770 | |
| 13096 | Melandas | £ 4,266,236 | |
| 13097 | Melandas Dynasty | £ 4,129,183 | |
| 13098 | Melandas General | £ 2,020,971 | |
| 13099 | Melandas Global | £ 3,541,345 | |
| 13100 | Melandas Pte Ltd | £ 3,229,876 | |
