The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 12501 | Manamana | £ 59,680,856 | |
| 12502 | Mananama | £ 22,707,721 | |
| 12503 | Manaus | £ 257,899,725 | |
| 12504 | ManBearPig | £ 502,877,277 | |
| 12505 | ManChat | £ 24,921,317 | |
| 12506 | Manchester | £ 303,684,849 | |
| 12507 | Manchester City fc | £ 29,318,533 | |
| 12508 | Manchester United F.C. | £ 6,788,251,158 | |
| 12509 | Manchester United XI | £ 5,357,466 | |
| 12510 | Manco Capac | £ 2,037,711,203 | |
| 12511 | Mandalay Bay | £ 6,146,133 | |
| 12512 | Mandalore | £ 114,249,627 | |
| 12513 | Mandelbrot Set | £ 772,659,005 | |
| 12514 | mander | £ 16,531,306 | |
| 12515 | Mangle Inc | £ 16,812,503 | |
| 12516 | Mango Escapade | £ 115,346,715 | |
| 12517 | Manhattan Project | £ 463,788,423 | |
| 12518 | mania | £ 311,404,918 | |
| 12519 | Maniac Express | £ 24,619,316 | |
| 12520 | Manic Miner | £ 81,614,358 | |
| 12521 | Manifest Destiny | £ 1,269,570,262 | |
| 12522 | Manities | £ 59,837,318 | |
| 12523 | Mankind | £ 48,268,759 | |
| 12524 | Mankind Divided | £ 511,833,059 | |
| 12525 | Manliness | £ 70,029,268 | |
| 12526 | Manly Living | £ 2,808,857 | |
| 12527 | ManManMan | £ 47,858,669 | |
| 12528 | Mann | £ 282,588,897 | |
| 12529 | Mannanin Co | £ 8,845,526 | |
| 12530 | Manners | £ 5,259,968 | |
| 12531 | Manny | £ 1,263,886,299 | |
| 12532 | Mans Best Friend | £ 279,475,422 | |
| 12533 | Mans World | £ 114,904,442 | |
| 12534 | Mansell Industries Ltd. | £ 5,444,121,114 | |
| 12535 | Mansfield Bitter | £ 397,755,385 | |
| 12536 | Manta | £ 7,067,125,870 | |
| 12537 | Manta. | £ 21,707,124 | |
| 12538 | mantis | £ 5,463,181 | |
| 12539 | manu-de-janeiro | £ 12,962,879 | |
| 12540 | manu-upon-avon | £ 106,781,988 | |
| 12541 | manu-upon-avon2 | £ 7,786,748 | |
| 12542 | manu-upon-tyne | £ 12,073,546 | |
| 12543 | Manual Shift | £ 514,808,382 | |
| 12544 | Manwe Sulimo | £ 1,555,092,617 | |
| 12545 | Many | £ 5,464,758 | |
| 12546 | Many acres | £ 529,586,073 | |
| 12547 | many burner comps | £ 987,380,696 | |
| 12548 | many companies | £ 64,173,944 | |
| 12549 | Many Ends | £ 10,771,456 | |
| 12550 | Many Faces | £ 375,619,962 | |
| 12551 | Many Fossil Fuels | £ 55,702,842 | |
| 12552 | Many houses | £ 362,641,942 | |
| 12553 | Many Missiles | £ 323,489,477 | |
| 12554 | Many more | £ 62,287,354 | |
| 12555 | Many Mysteries | £ 765,679 | |
| 12556 | Many Names | £ 126,369,379 | |
| 12557 | many numbers | £ 43,995,214 | |
| 12558 | many sources | £ 104,908,241 | |
| 12559 | Many Talents | £ 5,504,706 | |
| 12560 | many wars | £ 107,597,129 | |
| 12561 | Many Women | £ 9,789,150 | |
| 12562 | Mao Tse-Tung | £ 2,985,024,402 | |
| 12563 | Maolina | £ 6,447,323 | |
| 12564 | Maosim | £ 91,071,858 | |
| 12565 | Map 1 | £ 225,267,148 | |
| 12566 | Map Flateners | £ 66,340,384 | |
| 12567 | Maple Leaf | £ 9,272,710 | |
| 12568 | Maple Syrup Monsters | £ 5,683,586 | |
| 12569 | Mapleton Corp | £ 4,561,154 | |
| 12570 | Mapletree | £ 251,722,034 | |
| 12571 | mapping | £ 25,404,271 | |
| 12572 | Mapple | £ 7,653,759 | |
| 12573 | Maps | £ 629,072,198 | |
| 12574 | Mar a lago | £ 3,587,203 | |
| 12575 | Mar MB | £ 59,938,508 | |
| 12576 | Mara Salvatrucha | £ 776,476,046 | |
| 12577 | Marathon | £ 59,899,042 | |
| 12578 | Marathon Runner | £ 58,033,010 | |
| 12579 | Marauders Inc | £ 4,803,396 | |
| 12580 | Marbles | £ 336,923,960 | |
| 12581 | Marc Enterprises | £ 25,832,788 | |
| 12582 | Marcandmoles5 | £ 4,486,455 | |
| 12583 | March | £ 6,102,999 | |
| 12584 | March Madness | £ 2,824,281 | |
| 12585 | Marching-Affair | £ 9,711,202,901 | |
| 12586 | Marching-Again | £ 1,729,189,416 | |
| 12587 | Marco Inc | £ 12,220,734 | |
| 12588 | Marco Marketing | £ 350,613,978 | |
| 12589 | Marco Simoncelli | £ 1,001,318,886 | |
| 12590 | Marcomm Inc | £ 5,254,390 | |
| 12591 | Mardi Gras | £ 104,868,992 | |
| 12592 | Mare Nubium | £ 217,810,294 | |
| 12593 | Mareals Beneficence | £ 10,471,098 | |
| 12594 | Margaret Thatcher | £ 63,413,613 | |
| 12595 | Marges | £ 978,012,084 | |
| 12596 | Margot | £ 51,513,855 | |
| 12597 | Maria Vistablo | £ 96,352,474 | |
| 12598 | Marian | £ 10,841,138,789 | |
| 12599 | Mariana Trench | £ 1,394,594,580 | |
| 12600 | Marianas Trench | £ 281,151,605 | |
