The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 13801 | Mega Blox | £ 28,048,486,643 | |
| 13802 | Mega Boxes Around | £ 178,943,238 | |
| 13803 | MEGA BUDZ | £ 141,053 | |
| 13804 | Mega Corporation | £ 172,049 | |
| 13805 | Mega Corporations | £ 46,579,095 | |
| 13806 | Mega Mindy | £ 4,096,781 | |
| 13807 | Mega Mullets | £ 95,392,999 | |
| 13808 | MEGA Resources | £ 572,731 | |
| 13809 | Mega Streak | £ 173,370,387 | |
| 13810 | Megababy Co. | £ 50,000 | |
| 13811 | Megabucks | £ 111,934 | |
| 13812 | Megabucks Dundee | £ 50,000 | |
| 13813 | Megabucks Inc | £ 5,930,887 | |
| 13814 | Megabucks United | £ 4,290,972 | |
| 13815 | Megabyte Systems | £ 49,425,839 | |
| 13816 | Megacorp | £ 594,680 | |
| 13817 | MEGACUCKxXxPEENLOVER | £ 6,893,653 | |
| 13818 | Megadeth | £ 65,357,403 | |
| 13819 | MegaDeth Mob | £ 61,516,745 | |
| 13820 | MegaloMafia | £ 612,786 | |
| 13821 | megamolloy | £ 2,797,245 | |
| 13822 | megamolloy3 | £ 4,226,104 | |
| 13823 | megapolis | £ 27,651,775 | |
| 13824 | Megasuperbadass Mart | £ 2,903,109 | |
| 13825 | Megaton | £ 290,639,244 | |
| 13826 | Megaton Atomic Research | £ 7,533,717 | |
| 13827 | Megatron | £ 397,174,154 | |
| 13828 | Mehoff Erection Co | £ 4,005,620 | |
| 13829 | Mehrunes Dagon | £ 293,462,589 | |
| 13830 | Mein Kampf | £ 183,164,770 | |
| 13831 | Melandas | £ 4,266,236 | |
| 13832 | Melandas Dynasty | £ 4,129,183 | |
| 13833 | Melandas General | £ 2,020,971 | |
| 13834 | Melandas Global | £ 3,541,345 | |
| 13835 | Melandas Pte Ltd | £ 3,229,876 | |
| 13836 | Melbourne | £ 419,554,023 | |
| 13837 | Melissa | £ 2,099,518,119 | |
| 13838 | Mellonballs | £ 9,882 | |
| 13839 | Mellons | £ 11,146 | |
| 13840 | Melly Wilkes | £ 37,969,367 | |
| 13841 | Melodic Minor | £ 38,491,832 | |
| 13842 | Melting Apples | £ 53,274,340 | |
| 13843 | Melvin Capital | £ 16,421,242 | |
| 13844 | Members Only | £ 3,896,168 | |
| 13845 | Memo Re Foam | £ 163,951,375 | |
| 13846 | Memoria | £ 82,597,593 | |
| 13847 | Memories of Things | £ 456,389,176 | |
| 13848 | Memorize | £ 69,073,122 | |
| 13849 | Memory | £ 8,338,774 | |
| 13850 | memory lane | £ 121,830,153 | |
| 13851 | Men | £ 51,105,006 | |
| 13852 | Men In Black | £ 15,048,355 | |
| 13853 | men of mayhem | £ 5,110,741 | |
| 13854 | Menace | £ 120,290,215 | |
| 13855 | Mend | £ 28,443,353 | |
| 13856 | Mendozas | £ 10,155,704 | |
| 13857 | Menial Duties | £ 13,587,228 | |
| 13858 | Mensa | £ 30,678,192 | |
| 13859 | Mental | £ 18,517,755 | |
| 13860 | Mental corp | £ 50,000 | |
| 13861 | Mental Depression | £ 221,209 | |
| 13862 | Mental Disease | £ 619,169,867 | |
| 13863 | Meow Meow Corporation | £ 9,692,122 | |
| 13864 | Meowmeows | £ 6,546,378 | |
| 13865 | Mephisto | £ 230,844,295 | |
| 13866 | Mephistopheles | £ 39,283,234 | |
| 13867 | Mercedes | £ 333,388,191 | |
| 13868 | Mercedes Benz | £ 13,561,258 | |
| 13869 | Mercedes-Benz | £ 877,979,255 | |
| 13870 | Mercedes-Benz. | £ 12,670,498 | |
| 13871 | MercedesAMG Petronas F1 | £ 54,084,993 | |
| 13872 | Mercenaries | £ 1,427,822,080 | |
| 13873 | Mercenaries R Us | £ 119,524,890 | |
| 13874 | Merchiston | £ 79,224,604 | |
| 13875 | Merciful | £ 108,311,741 | |
| 13876 | Merck and Co Inc | £ 55,000,000 | |
| 13877 | Mercurial Holdings | £ 1,212,339,139 | |
| 13878 | Mercury | £ 83,833,529 | |
| 13879 | Mercy | £ 349,349,131 | |
| 13880 | Mercy Mercy Mercy | £ 65,668,893 | |
| 13881 | Merged Worlds | £ 179,290,627 | |
| 13882 | Mergers and acquisitions | £ 421,357,803 | |
| 13883 | Mergers and Monopolies | £ 1,052,886,123 | |
| 13884 | Merica | £ 56,698,378 | |
| 13885 | Meridian Marauders | £ 68,986,049 | |
| 13886 | Meritocracy | £ 632,692,520 | |
| 13887 | Merlendari | £ 34,644 | |
| 13888 | Merles Anarchsts | £ 3,733,376 | |
| 13889 | Merlin | £ 369,583,747 | |
| 13890 | merlin co.uk | £ 740,969,618 | |
| 13891 | Meropenem | £ 4,596,830 | |
| 13892 | merple | £ 65,319,084 | |
| 13893 | Mess | £ 149,138,524 | |
| 13894 | messi | £ 29,834,863 | |
| 13895 | Messy | £ 1,228,094 | |
| 13896 | MET | £ 20,898,349 | |
| 13897 | Meta | £ 477,383,347 | |
| 13898 | Metal | £ 939,126,424 | |
| 13899 | Metal Church | £ 55,040,228 | |
| 13900 | Metal Gear | £ 7,948,377 | |
