The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 10801 | Medusa | £ 290,642,676 | |
| 10802 | Medwain | £ 110,111,172 | |
| 10803 | Mee | £ 27,657,186 | |
| 10804 | Meeney Corp | £ 9,839,052 | |
| 10805 | Meeny Inc | £ 22,570,987 | |
| 10806 | Meep meep | £ 493,156,074 | |
| 10807 | Meerkat Movies | £ 70,976,024 | |
| 10808 | Meerkats | £ 550,594,543 | |
| 10809 | MEG LTD | £ 23,571 | |
| 10810 | Mega Blox | £ 14,897,129,618 | |
| 10811 | MEGA BUDZ | £ 141,053 | |
| 10812 | Mega Corporation | £ 172,049 | |
| 10813 | Mega Corporations | £ 46,579,095 | |
| 10814 | Mega Mindy | £ 4,096,781 | |
| 10815 | Mega Mullets | £ 65,168,605 | |
| 10816 | MEGA Resources | £ 572,731 | |
| 10817 | Megababy Co. | £ 50,000 | |
| 10818 | Megabucks | £ 111,934 | |
| 10819 | Megacorp | £ 594,680 | |
| 10820 | MEGACUCKxXxPEENLOVER | £ 6,893,653 | |
| 10821 | Megadeth | £ 65,357,403 | |
| 10822 | MegaDeth Mob | £ 61,516,745 | |
| 10823 | MegaloMafia | £ 612,786 | |
| 10824 | megamolloy | £ 2,797,245 | |
| 10825 | megamolloy3 | £ 4,226,104 | |
| 10826 | megapolis | £ 27,651,775 | |
| 10827 | Megasuperbadass Mart | £ 2,903,109 | |
| 10828 | Megaton | £ 290,639,244 | |
| 10829 | Megatron | £ 397,032,796 | |
| 10830 | Mehrunes Dagon | £ 239,206,510 | |
| 10831 | Mein Kampf | £ 183,164,770 | |
| 10832 | MELA | £ 739,341,465 | |
| 10833 | Melandas | £ 4,266,236 | |
| 10834 | Melandas Dynasty | £ 4,129,183 | |
| 10835 | Melandas General | £ 2,020,971 | |
| 10836 | Melandas Global | £ 3,541,345 | |
| 10837 | Melandas Pte Ltd | £ 3,229,876 | |
| 10838 | Melbourne | £ 358,554,023 | |
| 10839 | Melissa | £ 112,457,780 | |
| 10840 | Melissa Benoist | £ 681,251,959 | |
| 10841 | Mellonballs | £ 9,882 | |
| 10842 | Mellons | £ 11,146 | |
| 10843 | Melodic Minor | £ 38,491,832 | |
| 10844 | Melting Apples | £ 53,274,340 | |
| 10845 | Members Only | £ 3,896,168 | |
| 10846 | Memo Re Foam | £ 57,606,559 | |
| 10847 | Memoria | £ 26,338,452 | |
| 10848 | Memories | £ 61,112 | |
| 10849 | Memorize | £ 4,961,346 | |
| 10850 | Memory | £ 8,338,774 | |
| 10851 | Men | £ 51,105,006 | |
| 10852 | Men In Black | £ 15,048,355 | |
| 10853 | men of mayhem | £ 5,110,741 | |
| 10854 | Menace | £ 120,290,215 | |
| 10855 | Mend | £ 28,443,353 | |
| 10856 | Mendozas | £ 10,155,704 | |
| 10857 | Menial Duties | £ 13,587,228 | |
| 10858 | Menopause | £ 3,405,240 | |
| 10859 | Mensa | £ 30,678,192 | |
| 10860 | Mental | £ 7,002,327 | |
| 10861 | Mental corp | £ 50,000 | |
| 10862 | Mental Disease | £ 619,169,867 | |
| 10863 | Meow Meow Corporation | £ 9,692,122 | |
| 10864 | Meowmeows | £ 6,546,378 | |
| 10865 | Mephisto | £ 160,553,973 | |
| 10866 | Mephistopheles | £ 108,730,107 | |
| 10867 | Mercedes | £ 333,388,191 | |
| 10868 | Mercedes Benz | £ 13,561,258 | |
| 10869 | Mercenaries R Us | £ 119,524,890 | |
| 10870 | Merchiston | £ 79,224,604 | |
| 10871 | Merciful | £ 60,300,861 | |
| 10872 | Merciless | £ 52,967,252 | |
| 10873 | Merck and Co Inc | £ 50,000 | |
| 10874 | Mercurial Skirmish 161 | £ 18,337,880 | |
| 10875 | Mercury | £ 143,138,748 | |
| 10876 | Mercy | £ 335,849,131 | |
| 10877 | Mergers and acquisitions | £ 83,016,941 | |
| 10878 | Merica | £ 56,698,378 | |
| 10879 | Merit | £ 252,144,129 | |
| 10880 | Merles Anarchsts | £ 3,733,376 | |
| 10881 | merple | £ 7,684,303 | |
| 10882 | MET | £ 20,898,349 | |
| 10883 | Metal | £ 72,184,695 | |
| 10884 | Metal Church | £ 55,040,228 | |
| 10885 | Metal Gear | £ 7,948,377 | |
| 10886 | metal mulisha | £ 49,071,127 | |
| 10887 | METAL MULISHA CO | £ 13,264,672 | |
| 10888 | Metal Redneck | £ 13,953,424 | |
| 10889 | metal redneck co | £ 5,500,897 | |
| 10890 | Metalcore.Ind | £ 5,882,041 | |
| 10891 | Metalit | £ 1,398,496 | |
| 10892 | Metallica | £ 38,420,056 | |
| 10893 | MetallicLatice | £ 273,061 | |
| 10894 | Metantatopy | £ 306,149,463 | |
| 10895 | Meteor Shower | £ 891,977,507 | |
| 10896 | Meth | £ 83,666,830 | |
| 10897 | Meth Inq | £ 192,418 | |
| 10898 | methadrine inc. | £ -2,620,751 | |
| 10899 | methane | £ 167,580,714 | |
| 10900 | Methuselah | £ 1,235,104,585 | |
