The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 12401 | Mafia | £ 1,753,185 | |
| 12402 | Mafia Company | £ 30,978,732 | |
| 12403 | Mafia Enterprises | £ 8,427,838 | |
| 12404 | Mafia Inc. | £ 14,015,229 | |
| 12405 | Mafia Mexicana | £ 579,567,327 | |
| 12406 | mafism | £ 22,493,332 | |
| 12407 | Mag1c | £ 9,025,059 | |
| 12408 | MAGA | £ 149,392,802 | |
| 12409 | Magazine Distributors | £ 37,320,017 | |
| 12410 | Magdalene | £ 1,003,412,911 | |
| 12411 | Magellan of Voyage | £ 5,290,991 | |
| 12412 | Magenta Weed | £ 271,410,952 | |
| 12413 | Magic | £ 487,337,098 | |
| 12414 | Magic Carpet | £ 11,874,743 | |
| 12415 | Magic Emporium | £ 103,205,187 | |
| 12416 | Magic Mirror | £ 2,172,047 | |
| 12417 | Magic Monkeyz | £ 8,114,425 | |
| 12418 | Magic Mountain | £ 72,113,974 | |
| 12419 | Magic Mushrooms | £ 160,108,013 | |
| 12420 | Magic Pie | £ 561,960,283 | |
| 12421 | Magic Rock Garden | £ 88,058,735 | |
| 12422 | Magic Round About | £ 60,232,415 | |
| 12423 | Magic Roundabout | £ 5,733,823 | |
| 12424 | Magic Roundabout 2 | £ 55,140,648 | |
| 12425 | Magic Tricks | £ 180,089,801 | |
| 12426 | Magic Unicorns | £ 5,507,889 | |
| 12427 | Magician | £ 43,263,578 | |
| 12428 | MagicMan LTD | £ 74,979,745 | |
| 12429 | magics | £ 45,817,206 | |
| 12430 | Magik | £ 8,435,088 | |
| 12431 | Magikarp | £ 54,441,892 | |
| 12432 | magma | £ 256,976,687 | |
| 12433 | Magna Carta | £ 1,850,000 | |
| 12434 | Magnag Industries | £ 5,423,817 | |
| 12435 | Magnesia | £ 49,545,385 | |
| 12436 | Magnetic Flux Density | £ 53,513,845 | |
| 12437 | Magneto. | £ 41,525,507 | |
| 12438 | Magnets | £ 63,406,150 | |
| 12439 | Magnolia Properties | £ 5,505,968 | |
| 12440 | Magnum P.I. | £ 4,478,573,315 | |
| 12441 | Magnus | £ 9,726,515 | |
| 12442 | Magnus Global | £ 79,802,258 | |
| 12443 | MagnusCorp | £ 56,468,260 | |
| 12444 | Magoo | £ 17,276,464 | |
| 12445 | Magoos | £ 35,729,833 | |
| 12446 | Magpie | £ 172,943,574 | |
| 12447 | Magrathea | £ 54,106,264 | |
| 12448 | Mags Estate | £ 5,508,790 | |
| 12449 | Mags Ltd | £ 4,552,528 | |
| 12450 | Mags Summer | £ 5,708,628 | |
| 12451 | Mah Na Mah Na | £ 49,749,866 | |
| 12452 | Mai Kao Jai | £ 38,479,227 | |
| 12453 | Maicibai | £ 47,404,486 | |
| 12454 | Maico | £ 4,052,044 | |
| 12455 | Maid | £ 155,417,138 | |
| 12456 | £ 561,594,081 | ||
| 12457 | Main | £ 143,796,136 | |
| 12458 | Main Force Patrol | £ 32,257,237 | |
| 12459 | Maintenance | £ 619,311,696 | |
| 12460 | Majic | £ 25,759,014 | |
| 12461 | Majic Mushrooms | £ 54,504,646 | |
| 12462 | Major Consequences | £ 41,891,278 | |
| 12463 | major proportions | £ 330,952,609 | |
| 12464 | Major Space Crossroutes | £ 167,618,040 | |
| 12465 | Major Tom | £ 47,656,821 | |
| 12466 | majority | £ 47,058,636 | |
| 12467 | Make America Great Again | £ 5,508,261 | |
| 12468 | Make Gotham Great | £ 134,979,354 | |
| 12469 | make money | £ 4,810,592 | |
| 12470 | Make Netro Great | £ 3,983,342 | |
| 12471 | make this yet | £ 90,110,795 | |
| 12472 | makeofthis | £ 134,245,142 | |
| 12473 | Maker Inc. | £ 2,239,625 | |
| 12474 | Makes Me Feel Fine | £ 64,773,514 | |
| 12475 | Making America Great | £ 164,451,564 | |
| 12476 | Making Pennies | £ 92,844,685 | |
| 12477 | making so many | £ 85,241,085 | |
| 12478 | Mako | £ 10,829,833 | |
| 12479 | Maks a Muckle | £ 938,220,068 | |
| 12480 | Malaria | £ 7,409,841 | |
| 12481 | Malawi | £ 178,768,230 | |
| 12482 | Malaysia | £ 59,026,830 | |
| 12483 | MalCo | £ 16,148,870 | |
| 12484 | Malcontent | £ 110,148,082 | |
| 12485 | Malevolence | £ 1,704,444,541 | |
| 12486 | malformed creature | £ 267,031,614 | |
| 12487 | Malice | £ 1,906,405,831 | |
| 12488 | Malicious Intent | £ 55,421,858 | |
| 12489 | Malignant Mutt | £ 55,594,011 | |
| 12490 | Malinois Inc | £ 112,063,766 | |
| 12491 | Maliwan Munitions | £ 157,353,088 | |
| 12492 | Malkowitz Industries | £ 303,579,424 | |
| 12493 | Mall | £ 33,937,859 | |
| 12494 | Mallard | £ 47,485,699 | |
| 12495 | Malt Liquor Hulk | £ 119,025,023 | |
| 12496 | Malta | £ 5,500,838 | |
| 12497 | Maltesers | £ 54,432,517 | |
| 12498 | Maluku Inc. | £ 32,601,576 | |
| 12499 | MAMA | £ 10,429,149 | |
| 12500 | Mama Said Knock You Out | £ 239,813,209 | |
