The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 10401 | Magician | £ 43,263,578 | |
| 10402 | magics | £ -12,910,537 | |
| 10403 | Magik | £ 8,435,088 | |
| 10404 | Magikarp | £ 54,441,892 | |
| 10405 | magma | £ 256,976,687 | |
| 10406 | Magnag Industries | £ 5,423,817 | |
| 10407 | Magnesia | £ 658,948,830 | |
| 10408 | Magnolia Properties | £ 5,505,968 | |
| 10409 | Magnum P.I. | £ 4,467,573,315 | |
| 10410 | Magnum Performance | £ 1,406,444 | |
| 10411 | Magnus Global | £ 79,802,258 | |
| 10412 | MagnusCorp | £ 56,468,260 | |
| 10413 | Magoo | £ 17,276,464 | |
| 10414 | Magoos | £ 35,729,833 | |
| 10415 | Magpie | £ 5,500,937 | |
| 10416 | Mags Estate | £ 5,508,790 | |
| 10417 | Mags Ltd | £ 4,552,528 | |
| 10418 | Mags Summer | £ 5,708,628 | |
| 10419 | Mai Kao Jai | £ 38,479,227 | |
| 10420 | Maicibai | £ 47,404,486 | |
| 10421 | Maid | £ 19,422,174 | |
| 10422 | £ 394,687,919 | ||
| 10423 | Main Force Patrol | £ 32,257,237 | |
| 10424 | Maison and Co | £ 2,656,528 | |
| 10425 | Major Suite | £ 17,697 | |
| 10426 | Makaveli | £ 59,162,571 | |
| 10427 | Makaveli II | £ 44,201,619 | |
| 10428 | Make America Great Again | £ 5,508,261 | |
| 10429 | Make Another Move | £ 225,614,005 | |
| 10430 | Make Gotham Great | £ 134,979,354 | |
| 10431 | make money | £ 4,810,592 | |
| 10432 | Make Netro Great | £ 3,983,342 | |
| 10433 | make this yet | £ 48,850,871 | |
| 10434 | makeofthis | £ 134,245,142 | |
| 10435 | maker | £ 6,849,833 | |
| 10436 | Maker Inc. | £ 2,239,625 | |
| 10437 | Makes Me Feel Fine | £ 64,773,514 | |
| 10438 | Making America Great | £ 164,451,564 | |
| 10439 | Making Pennies | £ 92,844,685 | |
| 10440 | Mako | £ 7,379,065 | |
| 10441 | Maks a Muckle | £ 938,220,068 | |
| 10442 | Malak.Co | £ -47,512 | |
| 10443 | Malaria | £ 1,959,297 | |
| 10444 | Malawi | £ 178,768,230 | |
| 10445 | Malaysia | £ 59,026,830 | |
| 10446 | Malaysia Jet Lost | £ 965,177 | |
| 10447 | MalCo | £ 16,148,870 | |
| 10448 | Malcontent | £ 110,148,082 | |
| 10449 | malformed creature | £ 226,729,818 | |
| 10450 | Malice | £ 932,058,391 | |
| 10451 | Malicious Intent | £ 55,421,858 | |
| 10452 | Malik Inc. | £ 43,598 | |
| 10453 | Malkowitz Industries | £ 303,579,424 | |
| 10454 | Mall | £ 33,937,859 | |
| 10455 | Mallard | £ 47,485,699 | |
| 10456 | Malt Liquor Hulk | £ 146,882,798 | |
| 10457 | Malta | £ 5,500,838 | |
| 10458 | Maltesers | £ 54,432,517 | |
| 10459 | Maluku Inc. | £ 32,601,576 | |
| 10460 | MAMA | £ 10,429,149 | |
| 10461 | Mama Said Knock You Out | £ 206,270,452 | |
| 10462 | mamamiah | £ 7,580,475 | |
| 10463 | mamamiahah | £ 73,270,710 | |
| 10464 | Mambeast Pte Ltd | £ -17,776,530 | |
| 10465 | mami | £ 10,204,605 | |
| 10466 | Mammaries | £ 443,603,860 | |
| 10467 | Mammi | £ 42,251,220 | |
| 10468 | Mammiiah | £ 6,959,891 | |
| 10469 | Mammon | £ 5,509,324 | |
| 10470 | mammoth proportions | £ 503,376,369 | |
| 10471 | mams secret milk | £ 5,504,304 | |
| 10472 | Man | £ 15,615,588 | |
| 10473 | Man 53 | £ 28,656,765 | |
| 10474 | Man Chu | £ 58,613 | |
| 10475 | Man Flu | £ 5,664,188 | |
| 10476 | Man in the Mirror | £ 20,566,211 | |
| 10477 | Man Kind | £ 100,281,734 | |
| 10478 | Man Lab | £ 2,388,802 | |
| 10479 | Man of Steel | £ 306,562,022 | |
| 10480 | Mana | £ 199,521 | |
| 10481 | managed | £ 108,679,647 | |
| 10482 | Manaus | £ 257,899,725 | |
| 10483 | ManBearPig | £ 502,877,277 | |
| 10484 | ManChat | £ 24,921,317 | |
| 10485 | Manchester | £ 300,684,849 | |
| 10486 | Manchester Mayhem | £ 84,056 | |
| 10487 | manchester united | £ 5,711,474 | |
| 10488 | Manchester United F.C. | £ 59,669,320 | |
| 10489 | Manchester United FC | £ 191,073,172 | |
| 10490 | Manchester United XI | £ 5,357,466 | |
| 10491 | Manco Capac | £ 2,037,711,203 | |
| 10492 | Mancunia | £ -32,487 | |
| 10493 | Mancunia 2 | £ 138,386 | |
| 10494 | Mandalay Bay | £ 6,146,133 | |
| 10495 | Mandelbrot Set | £ 317,179,042 | |
| 10496 | mang | £ 2,904,476 | |
| 10497 | manginas | £ 46,000 | |
| 10498 | Mangle Inc | £ 16,870,733 | |
| 10499 | Mango Escapade | £ 115,346,715 | |
| 10500 | Mango incorporated | £ 76,448 | |
