The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 12101 | Maniac Express | £ 24,619,316 | |
| 12102 | Manic Miner | £ 81,614,358 | |
| 12103 | Manifest Destiny | £ 98,863,578 | |
| 12104 | Manifestation | £ 102,318,840 | |
| 12105 | Manities | £ 59,837,318 | |
| 12106 | Mankind | £ 170,883,979 | |
| 12107 | Manly Living | £ 2,808,857 | |
| 12108 | ManManMan | £ 38,206,350 | |
| 12109 | Mannanin Co | £ 8,845,526 | |
| 12110 | Manny | £ 1,263,886,299 | |
| 12111 | Mans Best Friend | £ 279,475,422 | |
| 12112 | Mans World | £ 103,865,359 | |
| 12113 | Mansell Industries Ltd. | £ 5,303,845,216 | |
| 12114 | Mansfield Bitter | £ 397,755,385 | |
| 12115 | Manta | £ 7,067,125,870 | |
| 12116 | Manta. | £ 21,707,124 | |
| 12117 | mantis | £ 5,463,181 | |
| 12118 | Manu upon avon | £ 1,056,762 | |
| 12119 | manu-de-janeiro | £ 12,962,879 | |
| 12120 | manu-upon-avon | £ 106,781,988 | |
| 12121 | manu-upon-avon2 | £ 7,786,748 | |
| 12122 | manu-upon-tyne | £ 12,073,546 | |
| 12123 | Manual Shift | £ 514,808,382 | |
| 12124 | Manwe Sulimo | £ 1,105,657,968 | |
| 12125 | Many | £ 5,464,758 | |
| 12126 | Many acres | £ 521,974,837 | |
| 12127 | many burner comps | £ 18,826,607 | |
| 12128 | many companies | £ 64,173,944 | |
| 12129 | Many Ends | £ 10,771,456 | |
| 12130 | Many Faces | £ 1,260,541,605 | |
| 12131 | Many Fossil Fuels | £ 55,702,842 | |
| 12132 | Many houses | £ 357,182,784 | |
| 12133 | Many Missiles | £ 251,272,721 | |
| 12134 | Many Monies Corporation | £ 50,000 | |
| 12135 | Many more | £ 62,287,354 | |
| 12136 | Many mushrooms | £ -14,428,318 | |
| 12137 | Many Mysteries | £ 765,679 | |
| 12138 | Many Names | £ 126,369,379 | |
| 12139 | many numbers | £ 43,995,214 | |
| 12140 | Many Talents | £ 5,504,706 | |
| 12141 | Many Women | £ 4,358,376 | |
| 12142 | Many Years | £ 380,300 | |
| 12143 | Manytimesusedpubbucket | £ 5,530,466 | |
| 12144 | Mao Tse-Tung | £ 2,489,727,429 | |
| 12145 | Mao Tsu Tsung | £ -1,713,345 | |
| 12146 | Maolina | £ 6,447,323 | |
| 12147 | Maose BV | £ 46,741 | |
| 12148 | Maosim | £ 62,212,646 | |
| 12149 | Map Flateners | £ 66,340,384 | |
| 12150 | Maple Leaf | £ 9,272,710 | |
| 12151 | Maple Syrup | £ 53,276,118 | |
| 12152 | Maple Syrup Monsters | £ 5,683,586 | |
| 12153 | MapleGrove | £ 483,977 | |
| 12154 | Mapleton Corp | £ 4,561,154 | |
| 12155 | MapleTree | £ 95,287,088 | |
| 12156 | Mapple | £ 7,653,759 | |
| 12157 | Maps | £ 5,503,263 | |
| 12158 | Mar MB | £ 59,938,508 | |
| 12159 | Mara Salvatrucha | £ 440,730,837 | |
| 12160 | Marathon | £ 59,899,042 | |
| 12161 | Marathon Runner | £ 58,033,010 | |
| 12162 | Marauders Inc | £ 4,803,396 | |
| 12163 | Marbles | £ 336,923,960 | |
| 12164 | Marc Enterprises | £ 25,832,788 | |
| 12165 | Marcandmoles5 | £ 4,486,455 | |
| 12166 | March | £ 6,102,999 | |
| 12167 | Marching-Affair | £ 9,711,202,901 | |
| 12168 | Marching-Again | £ 1,729,189,416 | |
| 12169 | Marco Inc | £ 12,220,734 | |
| 12170 | Marco Marketing | £ 350,613,978 | |
| 12171 | Marco Simoncelli | £ 990,616,986 | |
| 12172 | Marcome Inc | £ -205,648 | |
| 12173 | Marcomm Inc | £ 5,254,390 | |
| 12174 | Marcus corp | £ 2,161,927 | |
| 12175 | Mare Nubium | £ 98,521,117 | |
| 12176 | Mareals Beneficence | £ 10,471,098 | |
| 12177 | Margam | £ 581,332 | |
| 12178 | Margaret Thatcher | £ 63,413,613 | |
| 12179 | Marges | £ 978,012,084 | |
| 12180 | Marian | £ 10,841,138,789 | |
| 12181 | Mariana Trench | £ 54,199,317 | |
| 12182 | Marianas Trench | £ 362,582,082 | |
| 12183 | Marijuana | £ 139,330,510 | |
| 12184 | Marijuana Laws | £ 432,339,742 | |
| 12185 | Marik Stelele | £ 1,645,091 | |
| 12186 | Marine Drive | £ 600,478,295 | |
| 12187 | Mario | £ 148,719,211 | |
| 12188 | Mario Bros. Plumbing | £ 21,346,748 | |
| 12189 | Marion Morrison | £ 127,909,303 | |
| 12190 | Marissa | £ 1,378,328,809 | |
| 12191 | Marissa 2 | £ 524,757,169 | |
| 12192 | Marissa 3 | £ 667,967,397 | |
| 12193 | Marissa 4 | £ 312,726,823 | |
| 12194 | Marissa 5 | £ 238,611,098 | |
| 12195 | Marissa 6 | £ 495,989,312 | |
| 12196 | Marissa 7 | £ 407,172,119 | |
| 12197 | Marissa 8 | £ 425,196,899 | |
| 12198 | Marissa 9 | £ 548,552,830 | |
| 12199 | Marissa Love | £ 220,710,374 | |
| 12200 | Maritime Fish Factory | £ 2,719,055 | |
