The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 11901 | Mechastein Inc | £ 60,914,193 | |
| 11902 | Mechrock | £ 336,134,446 | |
| 11903 | Media Market | £ 31,425,226 | |
| 11904 | Media Player | £ 11,385,898 | |
| 11905 | Medical City | £ 1,079,536,679 | |
| 11906 | Medicine | £ 74,576,756 | |
| 11907 | Medicine.Com | £ 184,984,146 | |
| 11908 | Medient | £ 508,983 | |
| 11909 | Mediumship | £ 162,850,423 | |
| 11910 | MedPharm | £ 62,403,617 | |
| 11911 | Medusa | £ 290,947,180 | |
| 11912 | Medwain | £ 110,111,172 | |
| 11913 | Mee | £ 27,657,186 | |
| 11914 | Meeney Corp | £ 9,839,052 | |
| 11915 | Meeny Inc | £ 22,570,987 | |
| 11916 | Meep meep | £ 493,156,074 | |
| 11917 | Meerkat Movies | £ 70,976,024 | |
| 11918 | Meerkats | £ 550,594,543 | |
| 11919 | MEG LTD | £ 23,571 | |
| 11920 | Mega Blox | £ 18,877,638,069 | |
| 11921 | MEGA BUDZ | £ 141,053 | |
| 11922 | Mega Corporation | £ 172,049 | |
| 11923 | Mega Corporations | £ 46,579,095 | |
| 11924 | Mega Mindy | £ 4,096,781 | |
| 11925 | Mega Mullets | £ 68,417,568 | |
| 11926 | MEGA Resources | £ 572,731 | |
| 11927 | Megababy Co. | £ 50,000 | |
| 11928 | Megabucks | £ 111,934 | |
| 11929 | Megabucks Dundee | £ 50,000 | |
| 11930 | Megabucks Inc | £ 5,930,887 | |
| 11931 | Megabucks United | £ 4,290,972 | |
| 11932 | Megacorp | £ 594,680 | |
| 11933 | MEGACUCKxXxPEENLOVER | £ 6,893,653 | |
| 11934 | Megadeth | £ 65,357,403 | |
| 11935 | MegaDeth Mob | £ 61,516,745 | |
| 11936 | MegaloMafia | £ 612,786 | |
| 11937 | megamolloy | £ 2,797,245 | |
| 11938 | megamolloy3 | £ 4,226,104 | |
| 11939 | megapolis | £ 27,651,775 | |
| 11940 | Megasuperbadass Mart | £ 2,903,109 | |
| 11941 | Megaton | £ 290,639,244 | |
| 11942 | Megatron | £ 397,174,154 | |
| 11943 | Mehrunes Dagon | £ 239,206,510 | |
| 11944 | Mein Kampf | £ 183,164,770 | |
| 11945 | MELA | £ 923,948,418 | |
| 11946 | Melandas | £ 4,266,236 | |
| 11947 | Melandas Dynasty | £ 4,129,183 | |
| 11948 | Melandas General | £ 2,020,971 | |
| 11949 | Melandas Global | £ 3,541,345 | |
| 11950 | Melandas Pte Ltd | £ 3,229,876 | |
| 11951 | Melbourne | £ 358,554,023 | |
| 11952 | Melissa | £ 137,653,069 | |
| 11953 | Melissa Benoist | £ 681,251,959 | |
| 11954 | Mellonballs | £ 9,882 | |
| 11955 | Mellons | £ 11,146 | |
| 11956 | Melodic Minor | £ 38,491,832 | |
| 11957 | Melting Apples | £ 53,274,340 | |
| 11958 | Melvin Capital | £ 13,746,457 | |
| 11959 | Members Only | £ 3,896,168 | |
| 11960 | Memo Re Foam | £ 163,951,375 | |
| 11961 | Memoria | £ 82,597,593 | |
| 11962 | Memories | £ 61,112 | |
| 11963 | Memorize | £ 69,073,122 | |
| 11964 | Memory | £ 8,338,774 | |
| 11965 | Men | £ 51,105,006 | |
| 11966 | Men In Black | £ 15,048,355 | |
| 11967 | men of mayhem | £ 5,110,741 | |
| 11968 | Menace | £ 120,290,215 | |
| 11969 | Mend | £ 28,443,353 | |
| 11970 | Mendozas | £ 10,155,704 | |
| 11971 | Menial Duties | £ 13,587,228 | |
| 11972 | Menopause | £ 3,405,240 | |
| 11973 | Mensa | £ 30,678,192 | |
| 11974 | Mental | £ 18,517,755 | |
| 11975 | Mental corp | £ 50,000 | |
| 11976 | Mental Disease | £ 619,169,867 | |
| 11977 | Meow Meow Corporation | £ 9,692,122 | |
| 11978 | Meowmeows | £ 6,546,378 | |
| 11979 | Mephisto | £ 160,553,973 | |
| 11980 | Mephistopheles | £ 108,730,107 | |
| 11981 | Mercedes | £ 333,388,191 | |
| 11982 | Mercedes Benz | £ 13,561,258 | |
| 11983 | MercedesAMG Petronas F1 | £ 54,084,993 | |
| 11984 | Mercenaries | £ 1,194,032,156 | |
| 11985 | Mercenaries R Us | £ 119,524,890 | |
| 11986 | Merchiston | £ 79,224,604 | |
| 11987 | Merciful | £ 60,300,861 | |
| 11988 | Merciless | £ 52,967,252 | |
| 11989 | Merck and Co Inc | £ 50,000 | |
| 11990 | Mercurial Holdings | £ 25,969,695 | |
| 11991 | Mercurial Skirmish 161 | £ 18,337,880 | |
| 11992 | Mercury | £ 143,136,466 | |
| 11993 | Mercy | £ 335,849,131 | |
| 11994 | Merged Worlds | £ 120,586,114 | |
| 11995 | Mergers and acquisitions | £ 163,790,293 | |
| 11996 | Mergers and Monopolies | £ 315,049,828 | |
| 11997 | Merica | £ 56,698,378 | |
| 11998 | Merit | £ 252,144,129 | |
| 11999 | Merles Anarchsts | £ 3,733,376 | |
| 12000 | Meropenem | £ 44,307,981 | |
