The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 10401 | Making America Great | £ 164,451,564 | |
| 10402 | Making Pennies | £ 92,844,685 | |
| 10403 | Mako | £ 7,379,065 | |
| 10404 | Maks a Muckle | £ 938,220,068 | |
| 10405 | Malak.Co | £ -47,512 | |
| 10406 | Malaria | £ 1,959,297 | |
| 10407 | Malawi | £ 178,768,230 | |
| 10408 | Malaysia | £ 59,026,830 | |
| 10409 | Malaysia Jet Lost | £ 965,177 | |
| 10410 | MalCo | £ 16,148,870 | |
| 10411 | Malcontent | £ 110,148,082 | |
| 10412 | malformed creature | £ 226,729,818 | |
| 10413 | Malice | £ 896,214,156 | |
| 10414 | Malicious Intent | £ 55,421,858 | |
| 10415 | Malik Inc. | £ 43,598 | |
| 10416 | Malkowitz Industries | £ 303,579,424 | |
| 10417 | Mall | £ 33,937,859 | |
| 10418 | Mallard | £ 47,485,699 | |
| 10419 | Malt Liquor Hulk | £ 141,072,794 | |
| 10420 | Malta | £ 5,500,838 | |
| 10421 | Maltesers | £ 54,432,517 | |
| 10422 | Maluku Inc. | £ 32,601,576 | |
| 10423 | MAMA | £ 10,429,149 | |
| 10424 | Mama Said Knock You Out | £ 206,270,452 | |
| 10425 | mamamiah | £ 7,580,475 | |
| 10426 | mamamiahah | £ 73,270,710 | |
| 10427 | Mambeast Pte Ltd | £ -17,776,530 | |
| 10428 | mami | £ 10,204,605 | |
| 10429 | Mammaries | £ 443,603,860 | |
| 10430 | Mammi | £ 42,251,220 | |
| 10431 | Mammiiah | £ 6,959,891 | |
| 10432 | Mammon | £ 5,509,324 | |
| 10433 | mammoth proportions | £ 503,376,369 | |
| 10434 | mams secret milk | £ 5,504,304 | |
| 10435 | Man | £ 15,615,588 | |
| 10436 | Man 53 | £ 28,656,765 | |
| 10437 | Man Chu | £ 58,613 | |
| 10438 | Man Flu | £ 5,664,188 | |
| 10439 | Man in the Mirror | £ 20,566,211 | |
| 10440 | Man Kind | £ 100,281,734 | |
| 10441 | Man Lab | £ 2,388,802 | |
| 10442 | Man of Steel | £ 306,562,022 | |
| 10443 | Mana | £ 199,521 | |
| 10444 | managed | £ 39,415,395 | |
| 10445 | Manaus | £ 257,899,725 | |
| 10446 | ManBearPig | £ 502,877,277 | |
| 10447 | ManChat | £ 24,921,317 | |
| 10448 | Manchester | £ 300,684,849 | |
| 10449 | Manchester Mayhem | £ 84,056 | |
| 10450 | manchester united | £ 5,711,474 | |
| 10451 | Manchester United XI | £ 5,357,466 | |
| 10452 | Manco Capac | £ 2,037,711,203 | |
| 10453 | Mancunia | £ -32,487 | |
| 10454 | Mancunia 2 | £ 138,386 | |
| 10455 | Mandalay Bay | £ 6,146,133 | |
| 10456 | Mandelbrot Set | £ 317,179,042 | |
| 10457 | mang | £ 2,904,476 | |
| 10458 | manginas | £ 46,000 | |
| 10459 | Mangle Inc | £ 16,870,733 | |
| 10460 | Mango Escapade | £ 95,169,496 | |
| 10461 | Mango incorporated | £ 76,448 | |
| 10462 | Manhattan Project | £ 88,787,972 | |
| 10463 | mania | £ 311,404,918 | |
| 10464 | Maniac Express | £ 24,619,316 | |
| 10465 | Manic Miner | £ 81,614,358 | |
| 10466 | Manities | £ 55,292,484 | |
| 10467 | Mankind | £ 170,883,979 | |
| 10468 | Manly Living | £ 2,808,857 | |
| 10469 | ManManMan | £ 38,206,350 | |
| 10470 | Mannanin Co | £ 8,845,526 | |
| 10471 | Mans Best Friend | £ 279,475,422 | |
| 10472 | Mans World | £ 103,865,359 | |
| 10473 | Mansell Industries Ltd. | £ 2,299,922,271 | |
| 10474 | Mansfield Bitter | £ 397,755,385 | |
| 10475 | Manta | £ 7,067,125,870 | |
| 10476 | Manta. | £ 21,707,124 | |
| 10477 | mantis | £ 5,463,181 | |
| 10478 | Manu upon avon | £ 1,056,762 | |
| 10479 | manu-de-janeiro | £ 12,962,879 | |
| 10480 | manu-upon-avon | £ 106,781,988 | |
| 10481 | manu-upon-avon2 | £ 7,786,748 | |
| 10482 | manu-upon-tyne | £ 12,073,546 | |
| 10483 | Manual Shift | £ 514,808,382 | |
| 10484 | Many | £ 5,464,758 | |
| 10485 | Many acres | £ 521,974,837 | |
| 10486 | many companies | £ 64,173,944 | |
| 10487 | Many Ends | £ 10,771,456 | |
| 10488 | Many Fossil Fuels | £ 55,702,842 | |
| 10489 | Many houses | £ 357,182,784 | |
| 10490 | Many Monies Corporation | £ 50,000 | |
| 10491 | Many more | £ 62,287,354 | |
| 10492 | Many mushrooms | £ -14,428,318 | |
| 10493 | Many Mysteries | £ 765,679 | |
| 10494 | many numbers | £ 43,995,214 | |
| 10495 | Many Years | £ 380,300 | |
| 10496 | Manytimesusedpubbucket | £ 5,530,466 | |
| 10497 | Maolina | £ 6,447,323 | |
| 10498 | Maose BV | £ 46,741 | |
| 10499 | Maosim | £ 62,212,646 | |
| 10500 | Map Flateners | £ 66,340,384 | |
