The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 13101 | Merged Worlds | £ 120,586,114 | |
| 13102 | Mergers and acquisitions | £ 229,543,894 | |
| 13103 | Mergers and Monopolies | £ 791,476,324 | |
| 13104 | Merica | £ 56,698,378 | |
| 13105 | Merit | £ 279,136,733 | |
| 13106 | Merlendari | £ 34,644 | |
| 13107 | Merles Anarchsts | £ 3,733,376 | |
| 13108 | merlin co.uk | £ 265,568,510 | |
| 13109 | Merlot | £ 79,586,898 | |
| 13110 | Meropenem | £ 46,825,814 | |
| 13111 | merple | £ 7,684,303 | |
| 13112 | Mess | £ 55,724,618 | |
| 13113 | Messy | £ 1,228,094 | |
| 13114 | MET | £ 20,898,349 | |
| 13115 | Met Police Service | £ 796,927,320 | |
| 13116 | Meta | £ 328,514,839 | |
| 13117 | Metal | £ 859,914,092 | |
| 13118 | Metal Church | £ 55,040,228 | |
| 13119 | Metal Gear | £ 7,948,377 | |
| 13120 | metal mulisha | £ 49,071,127 | |
| 13121 | METAL MULISHA CO | £ 13,264,672 | |
| 13122 | Metal Redneck | £ 13,953,424 | |
| 13123 | metal redneck co | £ 5,500,897 | |
| 13124 | Metalcore.Ind | £ 5,882,041 | |
| 13125 | Metalit | £ 1,398,496 | |
| 13126 | Metallica | £ 38,420,056 | |
| 13127 | MetallicLatice | £ 273,061 | |
| 13128 | Metantatopy | £ 306,149,463 | |
| 13129 | Metaphorisms | £ 1,410,744,448 | |
| 13130 | Metathoric Chocolates | £ 5,505,012 | |
| 13131 | Meteor | £ 5,109,252 | |
| 13132 | Meteor Shower | £ 891,977,507 | |
| 13133 | Meth | £ 83,666,830 | |
| 13134 | Meth Inq | £ 192,418 | |
| 13135 | methadrine inc. | £ -2,620,751 | |
| 13136 | methane | £ 167,580,714 | |
| 13137 | Method Not Allowed | £ 51,113,927 | |
| 13138 | Methuselah | £ 1,235,104,585 | |
| 13139 | metime | £ 7,016,004 | |
| 13140 | Metrics | £ 5,534,939 | |
| 13141 | metro | £ 326,059,689 | |
| 13142 | Metro Boomin | £ 44,933,041 | |
| 13143 | Metro bucks | £ 54,602,605 | |
| 13144 | Metro News | £ 1,186,988 | |
| 13145 | Metrocity | £ 154,496,934 | |
| 13146 | Metroid | £ 401,548,326 | |
| 13147 | MetroMan | £ 2,205,870 | |
| 13148 | Metropolis | £ 441,922,676 | |
| 13149 | MewMew | £ 3,983,504 | |
| 13150 | Mexican Elf-Fellaters | £ 380,836 | |
| 13151 | Mexican Fine Dining | £ 1,120,894,956 | |
| 13152 | Mexico | £ 143,099,228 | |
| 13153 | MG metal | £ 83,272,537 | |
| 13154 | MGandH | £ 5,503,263 | |
| 13155 | MGM Grand Las Vegas | £ 57,107,896 | |
| 13156 | Mi Socio | £ 238,322,295 | |
| 13157 | MI5 | £ 141,793,336 | |
| 13158 | MI6 | £ 150,488,809 | |
| 13159 | Mi6 Bombers | £ 55,029,145 | |
| 13160 | Mia Culpa | £ 254,141,560 | |
| 13161 | mia lingua italiana | £ 446,549,861 | |
| 13162 | Mia Ventures | £ 261,241,688 | |
| 13163 | Miami | £ 58,175,004 | |
| 13164 | Miami Heat | £ 1,187,523 | |
| 13165 | Micasa | £ 12,867,239 | |
| 13166 | Miccpelt | £ 414,182,779 | |
| 13167 | MicDawnalds | £ 56,263 | |
| 13168 | Mice | £ 54,981,578 | |
| 13169 | Mice and Men | £ 406,351,331 | |
| 13170 | Mice CORP | £ 4,657,778 | |
| 13171 | Mice INC | £ -8,592,908 | |
| 13172 | Mice LTD | £ -1,811 | |
| 13173 | Mice TM | £ -240,470 | |
| 13174 | Michael | £ 1,522,266 | |
| 13175 | Michael Jackson | £ 35,590,097 | |
| 13176 | MichaelUnitedJuggernaut | £ 944,737 | |
| 13177 | Michelangelo | £ 98,916,923 | |
| 13178 | Michelin Mogul | £ 89,056,676 | |
| 13179 | Michigan | £ 83,780,074 | |
| 13180 | Michigan 1 | £ 4,091,450 | |
| 13181 | Mickey Mouse | £ 538,185,324 | |
| 13182 | micks empire | £ 5,500,143 | |
| 13183 | mickstuck | £ 617,897 | |
| 13184 | Micky | £ 1,186,247,866 | |
| 13185 | Micoss | £ 50,000 | |
| 13186 | Micro Waves | £ 27,270,073 | |
| 13187 | Microbix | £ 5,230,264 | |
| 13188 | Microboom | £ 43,372,557 | |
| 13189 | Microhard | £ 16,911,150 | |
| 13190 | Microjustice | £ 9,479,852 | |
| 13191 | Microserve | £ 5,974,813 | |
| 13192 | Microsft Enterprises | £ 6,100,321 | |
| 13193 | Microsoft | £ 564,820,057 | |
| 13194 | Microsoft Corporation | £ 58,800,390 | |
| 13195 | Microsoft Inc | £ 117,115,357 | |
| 13196 | Microsoft Retail Ltd. | £ 1,276,186 | |
| 13197 | Mid City Madness | £ 47,379,323 | |
| 13198 | Midas | £ 26,756,564 | |
| 13199 | Middle East | £ 82,443,439 | |
| 13200 | Middle-Knight-on-Sea | £ 94,032,145 | |
