The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 10801 | Members Only | £ 3,896,168 | |
| 10802 | Memo Re Foam | £ 57,606,559 | |
| 10803 | Memories | £ 61,112 | |
| 10804 | Memorize | £ 4,961,346 | |
| 10805 | Memory | £ 8,338,774 | |
| 10806 | Men | £ 51,105,006 | |
| 10807 | Men In Black | £ 15,048,355 | |
| 10808 | men of mayhem | £ 5,110,741 | |
| 10809 | Menace | £ 120,290,215 | |
| 10810 | Mend | £ 28,443,353 | |
| 10811 | Mendozas | £ 10,155,704 | |
| 10812 | Menial Duties | £ 13,587,228 | |
| 10813 | Menopause | £ 3,405,240 | |
| 10814 | Mensa | £ 30,678,192 | |
| 10815 | Mental corp | £ 50,000 | |
| 10816 | Mental Disease | £ 619,169,867 | |
| 10817 | Meow Meow Corporation | £ 9,692,122 | |
| 10818 | Meowmeows | £ 6,546,378 | |
| 10819 | Mephisto | £ 160,553,973 | |
| 10820 | Mephistopheles | £ 108,730,107 | |
| 10821 | Mercedes | £ 333,388,191 | |
| 10822 | Mercedes Benz | £ 13,561,258 | |
| 10823 | Mercenaries R Us | £ 119,524,890 | |
| 10824 | Merchiston | £ 79,224,604 | |
| 10825 | Merciful | £ 60,300,861 | |
| 10826 | Merciless | £ 52,967,252 | |
| 10827 | Merck and Co Inc | £ 50,000 | |
| 10828 | Mercurial Skirmish 161 | £ 18,337,880 | |
| 10829 | Mercury | £ 143,138,748 | |
| 10830 | Mercy | £ 335,849,131 | |
| 10831 | Mergers and acquisitions | £ 86,425,294 | |
| 10832 | Merica | £ 56,698,378 | |
| 10833 | Merit | £ 252,144,129 | |
| 10834 | Merles Anarchsts | £ 3,733,376 | |
| 10835 | merple | £ 7,684,303 | |
| 10836 | MET | £ 20,898,349 | |
| 10837 | Metal | £ 72,184,695 | |
| 10838 | Metal Church | £ 55,040,228 | |
| 10839 | Metal Gear | £ 7,948,377 | |
| 10840 | metal mulisha | £ 49,071,127 | |
| 10841 | METAL MULISHA CO | £ 13,264,672 | |
| 10842 | Metal Redneck | £ 13,953,424 | |
| 10843 | metal redneck co | £ 5,500,897 | |
| 10844 | Metalcore.Ind | £ 5,882,041 | |
| 10845 | Metalit | £ 1,398,496 | |
| 10846 | Metallica | £ 38,420,056 | |
| 10847 | MetallicLatice | £ 273,061 | |
| 10848 | Metantatopy | £ 306,149,463 | |
| 10849 | Meteor Shower | £ 891,977,507 | |
| 10850 | Meth | £ 83,666,830 | |
| 10851 | Meth Inq | £ 192,418 | |
| 10852 | methadrine inc. | £ -2,620,751 | |
| 10853 | methane | £ 167,580,714 | |
| 10854 | Methuselah | £ 1,235,104,585 | |
| 10855 | metime | £ 7,016,004 | |
| 10856 | MeToo | £ 48,902,168 | |
| 10857 | metro | £ 326,059,689 | |
| 10858 | Metro News | £ 1,186,988 | |
| 10859 | Metrocity | £ 117,426,077 | |
| 10860 | MetroMan | £ 2,205,870 | |
| 10861 | MewMew | £ 3,983,504 | |
| 10862 | Mexican Elf-Fellaters | £ 380,836 | |
| 10863 | Mexican Fine Dining | £ 502,026,236 | |
| 10864 | Mexico | £ 143,099,228 | |
| 10865 | MG metal | £ 83,272,537 | |
| 10866 | MGandH | £ 5,503,263 | |
| 10867 | Mi Socio | £ 236,861,461 | |
| 10868 | MI5 | £ 141,793,336 | |
| 10869 | MI6 | £ 150,488,809 | |
| 10870 | mia lingua italiana | £ 446,549,861 | |
| 10871 | Mia Ventures | £ 182,100,857 | |
| 10872 | Miami | £ 58,175,004 | |
| 10873 | Miami Heat | £ 1,187,523 | |
| 10874 | Miccpelt | £ 414,182,779 | |
| 10875 | Mice | £ 54,981,578 | |
| 10876 | Mice and Men | £ 406,351,331 | |
| 10877 | Mice CORP | £ 4,657,778 | |
| 10878 | Mice INC | £ -8,592,908 | |
| 10879 | Mice LTD | £ -1,811 | |
| 10880 | Mice TM | £ -240,470 | |
| 10881 | Michael | £ 1,522,266 | |
| 10882 | Michael Jackson | £ 35,590,097 | |
| 10883 | MichaelUnitedJuggernaut | £ 944,737 | |
| 10884 | Michelangelo | £ 63,411,929 | |
| 10885 | Michelin Mogul | £ 89,056,676 | |
| 10886 | Michigan | £ 83,780,074 | |
| 10887 | Michigan 1 | £ 4,091,450 | |
| 10888 | Mickey Mouse | £ 534,504,800 | |
| 10889 | micks empire | £ 5,500,143 | |
| 10890 | Micky | £ 1,186,247,866 | |
| 10891 | Micoss | £ 50,000 | |
| 10892 | Micro Waves | £ 27,270,073 | |
| 10893 | Microbix | £ 5,230,264 | |
| 10894 | Microboom | £ 45,468,171 | |
| 10895 | Microhard | £ 16,911,150 | |
| 10896 | Microserve | £ 5,974,813 | |
| 10897 | Microsft Enterprises | £ 6,100,321 | |
| 10898 | Microsoft | £ 564,820,057 | |
| 10899 | Microsoft Corporation | £ 58,800,390 | |
| 10900 | Microsoft Inc | £ 62,016,589 | |
