The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 12001 | Maltesers | £ 54,432,517 | |
| 12002 | Maltou Avenue | £ 4,176,354 | |
| 12003 | Maluku Inc. | £ 32,601,576 | |
| 12004 | MAMA | £ 10,429,149 | |
| 12005 | Mama Said Knock You Out | £ 239,813,209 | |
| 12006 | mamamiah | £ 7,580,475 | |
| 12007 | mamamiahah | £ 73,270,710 | |
| 12008 | Mambeast Pte Ltd | £ -17,776,530 | |
| 12009 | mami | £ 10,204,605 | |
| 12010 | Mammaries | £ 443,603,860 | |
| 12011 | Mammi | £ 42,251,220 | |
| 12012 | Mammiiah | £ 6,959,891 | |
| 12013 | Mammon | £ 5,509,324 | |
| 12014 | mammoth proportions | £ 503,376,369 | |
| 12015 | mams secret milk | £ 5,504,304 | |
| 12016 | Man | £ 17,801,890 | |
| 12017 | Man 53 | £ 28,656,765 | |
| 12018 | Man Chu | £ 58,613 | |
| 12019 | Man Flu | £ 5,664,188 | |
| 12020 | Man in the Mirror | £ 20,566,211 | |
| 12021 | Man Kind | £ 100,281,734 | |
| 12022 | Man Lab | £ 2,388,802 | |
| 12023 | Man of Time Morty | £ 4,072,803 | |
| 12024 | Mana | £ 199,521 | |
| 12025 | managed | £ 272,908,637 | |
| 12026 | Manaus | £ 257,899,725 | |
| 12027 | ManBearPig | £ 502,877,277 | |
| 12028 | ManChat | £ 24,921,317 | |
| 12029 | Manchester | £ 303,684,849 | |
| 12030 | Manchester Mayhem | £ 84,056 | |
| 12031 | manchester united | £ 5,711,474 | |
| 12032 | Manchester United F.C. | £ 4,845,762,345 | |
| 12033 | Manchester United FC | £ 3,276,769,903 | |
| 12034 | Manchester United XI | £ 5,357,466 | |
| 12035 | Manco Capac | £ 2,037,711,203 | |
| 12036 | Mancunia | £ -32,487 | |
| 12037 | Mancunia 2 | £ 138,386 | |
| 12038 | Mandalay Bay | £ 6,146,133 | |
| 12039 | Mandalore | £ 114,249,627 | |
| 12040 | Mandelbrot Set | £ 490,973,267 | |
| 12041 | mang | £ 2,904,476 | |
| 12042 | manginas | £ 46,000 | |
| 12043 | Mangle Inc | £ 16,870,733 | |
| 12044 | Mango Escapade | £ 115,346,715 | |
| 12045 | Mango incorporated | £ 76,448 | |
| 12046 | Manhattan Project | £ 327,666,451 | |
| 12047 | mania | £ 311,404,918 | |
| 12048 | Maniac Express | £ 24,619,316 | |
| 12049 | Manic Miner | £ 81,614,358 | |
| 12050 | Manifest Destiny | £ 429,333,253 | |
| 12051 | Manifestation | £ 85,050,887 | |
| 12052 | Manities | £ 59,837,318 | |
| 12053 | Mankind | £ 170,883,979 | |
| 12054 | Manly Living | £ 2,808,857 | |
| 12055 | ManManMan | £ 47,858,669 | |
| 12056 | Mann | £ 34,728,974 | |
| 12057 | Mannanin Co | £ 8,845,526 | |
| 12058 | Manners | £ 5,259,968 | |
| 12059 | Manny | £ 1,263,886,299 | |
| 12060 | Mans Best Friend | £ 279,475,422 | |
| 12061 | Mans World | £ 103,865,359 | |
| 12062 | Mansell Industries Ltd. | £ 5,444,121,114 | |
| 12063 | Mansfield Bitter | £ 397,755,385 | |
| 12064 | Manta | £ 7,067,125,870 | |
| 12065 | Manta. | £ 21,707,124 | |
| 12066 | mantis | £ 5,463,181 | |
| 12067 | manu-de-janeiro | £ 12,962,879 | |
| 12068 | manu-upon-avon | £ 106,781,988 | |
| 12069 | manu-upon-avon2 | £ 7,786,748 | |
| 12070 | manu-upon-tyne | £ 12,073,546 | |
| 12071 | Manual Shift | £ 514,808,382 | |
| 12072 | Manwe Sulimo | £ 1,555,092,617 | |
| 12073 | Many | £ 5,464,758 | |
| 12074 | Many acres | £ 529,586,073 | |
| 12075 | many burner comps | £ 658,734,573 | |
| 12076 | many companies | £ 64,173,944 | |
| 12077 | Many Ends | £ 10,771,456 | |
| 12078 | Many Faces | £ 274,400,972 | |
| 12079 | Many Fossil Fuels | £ 55,702,842 | |
| 12080 | Many houses | £ 362,641,942 | |
| 12081 | Many Missiles | £ 266,028,309 | |
| 12082 | Many Monies Corporation | £ 50,000 | |
| 12083 | Many more | £ 62,287,354 | |
| 12084 | Many mushrooms | £ -14,428,318 | |
| 12085 | Many Mysteries | £ 765,679 | |
| 12086 | Many Names | £ 126,369,379 | |
| 12087 | many numbers | £ 43,995,214 | |
| 12088 | many sources | £ 46,408,241 | |
| 12089 | Many Talents | £ 5,504,706 | |
| 12090 | Many Witnesses | £ -519,285 | |
| 12091 | Many Women | £ 4,358,376 | |
| 12092 | Mao Tse-Tung | £ 2,985,024,402 | |
| 12093 | Mao Tsu Tsung | £ -1,713,345 | |
| 12094 | Maolina | £ 6,447,323 | |
| 12095 | Maose BV | £ 46,741 | |
| 12096 | Maosim | £ 91,071,858 | |
| 12097 | Map Flateners | £ 66,340,384 | |
| 12098 | Maple Leaf | £ 9,272,710 | |
| 12099 | Maple Syrup Monsters | £ 5,683,586 | |
| 12100 | MapleGrove | £ 483,977 | |
