The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 13401 | macs united | £ 170,666 | |
| 13402 | MactheKnife | £ 12,601,969 | |
| 13403 | Macwill | £ 5,259,176 | |
| 13404 | macwill2285 | £ 9,334,215 | |
| 13405 | MAD AS HELL | £ 2,349,476 | |
| 13406 | Mad Cow Disease | £ 367,617,936 | |
| 13407 | Mad Dog Coll | £ 42,800,617 | |
| 13408 | Mad Dog Enterprise | £ 32,168,238 | |
| 13409 | Mad Dog Ltd | £ 50,000 | |
| 13410 | Mad Dogg Money | £ 65,796,411 | |
| 13411 | Mad Dogs | £ 57,790,153 | |
| 13412 | Mad Fortunate | £ 50,000 | |
| 13413 | madamada | £ 233,630 | |
| 13414 | Madd Dogg 2020 | £ 10,742,409 | |
| 13415 | MadDogHoldings | £ 5,043,725 | |
| 13416 | Maddy Moo | £ 115,199,118 | |
| 13417 | Made a better decision | £ 51,894,350 | |
| 13418 | Made in Brazil | £ 61,550,105 | |
| 13419 | Made in canada | £ 5,496,632 | |
| 13420 | Made in China | £ 60,382,429 | |
| 13421 | Made in India | £ 18,870,885 | |
| 13422 | made it | £ 9,045,642 | |
| 13423 | madeds | £ 95,442 | |
| 13424 | Madeira Inc | £ 131,914,835 | |
| 13425 | MadHatter | £ -238,315 | |
| 13426 | Madison Square Gardens | £ 1,149,690,105 | |
| 13427 | MadMafia | £ 132,483,479 | |
| 13428 | madman enterprise | £ 2,426,958 | |
| 13429 | madmen | £ 2,133,394,509 | |
| 13430 | Madness | £ 6,736,333 | |
| 13431 | Madness Holdings | £ 6,130,507 | |
| 13432 | Madness Inc | £ 71,179,360 | |
| 13433 | MadridCo | £ 63,090,434 | |
| 13434 | Madtax | £ 60,599,818 | |
| 13435 | Maelstrom | £ 74,490 | |
| 13436 | Maes | £ 5,506,699 | |
| 13437 | Maestro Inc | £ 10,020,096 | |
| 13438 | Maestro1 | £ 9,268,941 | |
| 13439 | Maestro3 | £ 50,000 | |
| 13440 | MaFFia | £ 133,401,495 | |
| 13441 | Mafia | £ 1,753,185 | |
| 13442 | Mafia Company | £ 30,978,732 | |
| 13443 | Mafia Enterprises | £ 8,427,838 | |
| 13444 | Mafia Mexicana | £ 577,485,780 | |
| 13445 | mafism | £ 22,493,332 | |
| 13446 | Mag1c | £ 9,025,059 | |
| 13447 | MAGA | £ 149,392,802 | |
| 13448 | Magazine Distributors | £ 37,320,017 | |
| 13449 | Magdalene | £ 1,003,412,911 | |
| 13450 | Magellan of Voyage | £ 5,290,991 | |
| 13451 | Magenta Weed | £ 271,410,952 | |
| 13452 | Maggic7 | £ -443,731 | |
| 13453 | Magic | £ 487,337,098 | |
| 13454 | Magic Carpet | £ 11,874,743 | |
| 13455 | Magic Emporium | £ 103,205,187 | |
| 13456 | Magic Industries | £ -1,643 | |
| 13457 | Magic Mirror | £ 2,172,047 | |
| 13458 | Magic Monkeyz | £ 8,114,425 | |
| 13459 | Magic Mountain | £ 72,113,974 | |
| 13460 | Magic Mushrooms | £ 160,108,013 | |
| 13461 | Magic Pie | £ 490,215,342 | |
| 13462 | Magic Rock Garden | £ 88,058,735 | |
| 13463 | Magic Round About | £ 60,232,415 | |
| 13464 | Magic Roundabout | £ 5,733,823 | |
| 13465 | Magic Tricks | £ 168,987,118 | |
| 13466 | Magic Unicorns | £ 5,507,889 | |
| 13467 | Magician | £ 43,263,578 | |
| 13468 | MagicMan LTD | £ 157,860,805 | |
| 13469 | magics | £ 89,717,576 | |
| 13470 | Magik | £ 8,435,088 | |
| 13471 | Magikarp | £ 54,441,892 | |
| 13472 | magma | £ 256,976,687 | |
| 13473 | Magnag Industries | £ 5,423,817 | |
| 13474 | Magnesia | £ 49,545,385 | |
| 13475 | Magnesium | £ -10,504,907 | |
| 13476 | Magneto | £ 45,020,225 | |
| 13477 | Magneto. | £ 41,525,507 | |
| 13478 | Magnets | £ 40,414,000 | |
| 13479 | Magnolia Properties | £ 5,505,968 | |
| 13480 | Magnum P.I. | £ 4,478,573,315 | |
| 13481 | Magnus Global | £ 79,802,258 | |
| 13482 | MagnusCorp | £ 56,468,260 | |
| 13483 | Magoo | £ 17,276,464 | |
| 13484 | Magoos | £ 35,729,833 | |
| 13485 | Magpie | £ 89,545,134 | |
| 13486 | Magrathea | £ 54,106,264 | |
| 13487 | Mags Estate | £ 5,508,790 | |
| 13488 | Mags Ltd | £ 4,552,528 | |
| 13489 | Mags Summer | £ 5,708,628 | |
| 13490 | Mai Kao Jai | £ 38,479,227 | |
| 13491 | Maicibai | £ 47,404,486 | |
| 13492 | Maid | £ 155,417,138 | |
| 13493 | £ 530,846,927 | ||
| 13494 | Main | £ 2,002,916 | |
| 13495 | Main Force Patrol | £ 32,257,237 | |
| 13496 | Maintenance | £ 553,311,696 | |
| 13497 | Majic | £ 78,301,691 | |
| 13498 | major proportions | £ 330,952,609 | |
| 13499 | Major Space Crossroutes | £ 167,618,040 | |
| 13500 | Major Suite | £ 17,697 | |
