The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 14101 | Medicine | £ 107,658,336 | |
| 14102 | Medicine.Com | £ 184,984,146 | |
| 14103 | Medickey | £ 56,174,262 | |
| 14104 | Medient | £ 508,983 | |
| 14105 | Mediolanum | £ 89,849,157 | |
| 14106 | Medium Cheese Corp. | £ 1,592,904 | |
| 14107 | Mediumship | £ 817,662,034 | |
| 14108 | MedPharm | £ 62,403,617 | |
| 14109 | Medusa | £ 290,947,180 | |
| 14110 | Medwain | £ 110,111,172 | |
| 14111 | Mee | £ 27,657,186 | |
| 14112 | Meeney Corp | £ 9,839,052 | |
| 14113 | Meeny Inc | £ 22,570,987 | |
| 14114 | Meep meep | £ 493,156,074 | |
| 14115 | Meerkats | £ 550,594,543 | |
| 14116 | MEG LTD | £ 23,571 | |
| 14117 | Mega Blox | £ 30,146,185,178 | |
| 14118 | Mega Boxes Around | £ 183,349,762 | |
| 14119 | MEGA BUDZ | £ 141,053 | |
| 14120 | Mega Bus | £ 127,000,909 | |
| 14121 | Mega Corporation | £ 172,049 | |
| 14122 | Mega Corporations | £ 46,579,095 | |
| 14123 | Mega Mindy | £ 4,096,781 | |
| 14124 | Mega Mullets | £ 291,882,798 | |
| 14125 | MEGA Resources | £ 572,731 | |
| 14126 | Mega Streak | £ 223,794,963 | |
| 14127 | Megababy Co. | £ 50,000 | |
| 14128 | Megabucks | £ 111,934 | |
| 14129 | Megabucks Dundee | £ 50,000 | |
| 14130 | Megabucks Inc | £ 5,930,887 | |
| 14131 | Megabucks United | £ 4,290,972 | |
| 14132 | Megabyte Systems | £ 50,288,693 | |
| 14133 | Megacorp | £ 594,680 | |
| 14134 | MEGACUCKxXxPEENLOVER | £ 6,893,653 | |
| 14135 | Megadeth | £ 65,357,403 | |
| 14136 | MegaDeth Mob | £ 61,516,745 | |
| 14137 | MegaloMafia | £ 612,786 | |
| 14138 | megamolloy | £ 2,797,245 | |
| 14139 | megamolloy3 | £ 4,226,104 | |
| 14140 | megapolis | £ 27,651,775 | |
| 14141 | Megasuperbadass Mart | £ 2,903,109 | |
| 14142 | Megaton | £ 290,639,244 | |
| 14143 | Megaton Atomic Research | £ 7,533,717 | |
| 14144 | Megatron | £ 397,174,154 | |
| 14145 | Mehoff Erection Co | £ 4,005,620 | |
| 14146 | Mehrunes Dagon | £ 293,462,589 | |
| 14147 | Mein Kampf | £ 183,164,770 | |
| 14148 | Melandas | £ 4,266,236 | |
| 14149 | Melandas Dynasty | £ 4,129,183 | |
| 14150 | Melandas General | £ 2,020,971 | |
| 14151 | Melandas Global | £ 3,541,345 | |
| 14152 | Melandas Pte Ltd | £ 3,229,876 | |
| 14153 | Melbourne | £ 419,554,023 | |
| 14154 | Melissa | £ 2,383,663,707 | |
| 14155 | Mellonballs | £ 9,882 | |
| 14156 | Mellons | £ 11,146 | |
| 14157 | Melting Apples | £ 53,274,340 | |
| 14158 | Melvin Capital | £ 16,421,242 | |
| 14159 | Members Only | £ 3,896,168 | |
| 14160 | Memo Re Foam | £ 163,951,375 | |
| 14161 | Memoria | £ 82,597,593 | |
| 14162 | Memories of Things | £ 419,292,996 | |
| 14163 | Memorize | £ 69,073,122 | |
| 14164 | Memory | £ 8,338,774 | |
| 14165 | memory lane | £ 187,514,498 | |
| 14166 | Men | £ 51,105,006 | |
| 14167 | Men In Black | £ 15,048,355 | |
| 14168 | men of mayhem | £ 5,110,741 | |
| 14169 | Menace | £ 120,290,215 | |
| 14170 | Mend | £ 28,443,353 | |
| 14171 | Mendozas | £ 10,155,704 | |
| 14172 | Menial Duties | £ 13,587,228 | |
| 14173 | Mensa | £ 40,328,174 | |
| 14174 | Mental corp | £ 50,000 | |
| 14175 | Mental Depression | £ 221,209 | |
| 14176 | Mental Disease | £ 619,169,867 | |
| 14177 | Meow Meow Corporation | £ 9,692,122 | |
| 14178 | Meowmeows | £ 6,546,378 | |
| 14179 | Mephisto | £ 230,844,295 | |
| 14180 | Mephistopheles | £ 86,229,921 | |
| 14181 | Mercedes | £ 333,388,191 | |
| 14182 | Mercedes Benz | £ 13,561,258 | |
| 14183 | Mercedes-Benz | £ 1,885,919,255 | |
| 14184 | Mercedes-Benz. | £ 12,670,498 | |
| 14185 | MercedesAMG Petronas F1 | £ 54,084,993 | |
| 14186 | Mercenaries | £ 1,427,822,080 | |
| 14187 | Mercenaries R Us | £ 119,524,890 | |
| 14188 | Merchiston | £ 79,224,604 | |
| 14189 | Merciful | £ 108,311,741 | |
| 14190 | Merck and Co Inc | £ 55,000,000 | |
| 14191 | Mercurial Holdings | £ 1,302,787,177 | |
| 14192 | Mercury | £ 88,453,970 | |
| 14193 | Mercy | £ 349,349,131 | |
| 14194 | Mercy Mercy Mercy | £ 103,668,893 | |
| 14195 | Merged Worlds | £ 179,290,627 | |
| 14196 | Mergers and acquisitions | £ 423,737,955 | |
| 14197 | Mergers and Monopolies | £ 1,207,930,294 | |
| 14198 | Merica | £ 56,698,378 | |
| 14199 | Meridian Marauders | £ 54,727,936 | |
| 14200 | Meritocracy | £ 1,029,147,844 | |
