The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 13401 | Mall | £ 33,937,859 | |
| 13402 | Mallard | £ 47,485,699 | |
| 13403 | Malt Liquor Hulk | £ 113,616,222 | |
| 13404 | Malta | £ 5,500,838 | |
| 13405 | Maltesers | £ 54,432,517 | |
| 13406 | Maltou Avenue | £ 4,176,354 | |
| 13407 | Maluku Inc. | £ 32,601,576 | |
| 13408 | MAMA | £ 10,429,149 | |
| 13409 | Mama Said Knock You Out | £ 239,813,209 | |
| 13410 | mamamiah | £ 7,580,475 | |
| 13411 | mamamiahah | £ 73,270,710 | |
| 13412 | Mamba | £ 11,108,201 | |
| 13413 | Mambeast Pte Ltd | £ -17,776,530 | |
| 13414 | mami | £ 10,204,605 | |
| 13415 | Mammaries | £ 443,603,860 | |
| 13416 | Mammi | £ 42,251,220 | |
| 13417 | Mammiiah | £ 6,959,891 | |
| 13418 | Mammon | £ 5,509,324 | |
| 13419 | mammoth proportions | £ 503,376,369 | |
| 13420 | mams secret milk | £ 5,504,304 | |
| 13421 | Man | £ 17,801,890 | |
| 13422 | Man 53 | £ 28,656,765 | |
| 13423 | Man Chu | £ 58,613 | |
| 13424 | Man Flu | £ 5,664,188 | |
| 13425 | Man in the Mirror | £ 20,566,211 | |
| 13426 | Man Kind | £ 100,281,734 | |
| 13427 | Man Lab | £ 2,388,802 | |
| 13428 | Man Standing | £ 61,229,783 | |
| 13429 | Mana | £ 199,521 | |
| 13430 | managed | £ 272,908,637 | |
| 13431 | Manaus | £ 257,899,725 | |
| 13432 | ManBearPig | £ 502,877,277 | |
| 13433 | ManChat | £ 24,921,317 | |
| 13434 | Manchester | £ 303,684,849 | |
| 13435 | Manchester City fc | £ 29,318,533 | |
| 13436 | Manchester Mayhem | £ 84,056 | |
| 13437 | manchester united | £ 5,711,474 | |
| 13438 | Manchester United F.C. | £ 5,810,917,837 | |
| 13439 | Manchester United XI | £ 5,357,466 | |
| 13440 | Manchester Unitedfc | £ -1,131,040 | |
| 13441 | Manco Capac | £ 2,037,711,203 | |
| 13442 | Mancunia | £ -32,487 | |
| 13443 | Mancunia 2 | £ 138,386 | |
| 13444 | Mandalay Bay | £ 6,146,133 | |
| 13445 | Mandalore | £ 114,249,627 | |
| 13446 | Mandelbrot Set | £ 637,290,394 | |
| 13447 | mang | £ 2,904,476 | |
| 13448 | manginas | £ 46,000 | |
| 13449 | Mangle Inc | £ 16,870,733 | |
| 13450 | Mango Escapade | £ 115,346,715 | |
| 13451 | Mango incorporated | £ 76,448 | |
| 13452 | Manhattan Project | £ 359,488,934 | |
| 13453 | mania | £ 311,404,918 | |
| 13454 | Maniac | £ 2,993,292 | |
| 13455 | Maniac Express | £ 24,619,316 | |
| 13456 | Manic Miner | £ 81,614,358 | |
| 13457 | Manifest Destiny | £ 1,265,231,578 | |
| 13458 | Manities | £ 59,837,318 | |
| 13459 | Mankind | £ 170,883,979 | |
| 13460 | Mankind Divided | £ 511,833,059 | |
| 13461 | Manly Living | £ 2,808,857 | |
| 13462 | ManManMan | £ 47,858,669 | |
| 13463 | Mann | £ 55,184,824 | |
| 13464 | Mannanin Co | £ 8,845,526 | |
| 13465 | Manners | £ 5,259,968 | |
| 13466 | Manny | £ 1,263,886,299 | |
| 13467 | Mans Best Friend | £ 279,475,422 | |
| 13468 | Mans World | £ 114,904,442 | |
| 13469 | Mansell Industries Ltd. | £ 5,444,121,114 | |
| 13470 | Mansfield Bitter | £ 397,755,385 | |
| 13471 | Manta | £ 7,067,125,870 | |
| 13472 | Manta. | £ 21,707,124 | |
| 13473 | mantis | £ 5,463,181 | |
| 13474 | manu-de-janeiro | £ 12,962,879 | |
| 13475 | manu-upon-avon | £ 106,781,988 | |
| 13476 | manu-upon-avon2 | £ 7,786,748 | |
| 13477 | manu-upon-tyne | £ 12,073,546 | |
| 13478 | Manual Shift | £ 514,808,382 | |
| 13479 | Manwe Sulimo | £ 1,555,092,617 | |
| 13480 | Many | £ 5,464,758 | |
| 13481 | Many acres | £ 529,586,073 | |
| 13482 | many burner comps | £ 890,081,582 | |
| 13483 | many companies | £ 64,173,944 | |
| 13484 | Many Ends | £ 10,771,456 | |
| 13485 | Many Faces | £ 319,267,962 | |
| 13486 | Many Fossil Fuels | £ 55,702,842 | |
| 13487 | Many houses | £ 362,641,942 | |
| 13488 | Many Missiles | £ 275,489,477 | |
| 13489 | Many Monies Corporation | £ 50,000 | |
| 13490 | Many more | £ 62,287,354 | |
| 13491 | Many mushrooms | £ -14,428,318 | |
| 13492 | Many Mysteries | £ 765,679 | |
| 13493 | Many Names | £ 126,369,379 | |
| 13494 | many numbers | £ 43,995,214 | |
| 13495 | many sources | £ 104,908,241 | |
| 13496 | Many Talents | £ 5,504,706 | |
| 13497 | many wars | £ 107,597,129 | |
| 13498 | Many Women | £ 9,789,150 | |
| 13499 | Mao Tse-Tung | £ 2,985,024,402 | |
| 13500 | Mao Tsu Tsung | £ -1,713,345 | |
