The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 12501 | Macdoughnuts | £ 309,330,055 | |
| 12502 | Mace | £ 52,884,411 | |
| 12503 | Macedon | £ 13,489,635 | |
| 12504 | Macedon. | £ 55,310,403 | |
| 12505 | Macedonia | £ 10,956,617 | |
| 12506 | MacGregor | £ 122,424,043 | |
| 12507 | Machines | £ 3,782,071 | |
| 12508 | macho | £ -15,473 | |
| 12509 | Machu Picchu | £ 89,150,732 | |
| 12510 | Mack.org | £ 35,018,642 | |
| 12511 | mackbean | £ 29,057,490 | |
| 12512 | Mackensen | £ 1,985,565 | |
| 12513 | Macks Autos | £ 54,727,113 | |
| 12514 | MacPro | £ 60,967,224 | |
| 12515 | MacroHard-1 | £ 5,898,317 | |
| 12516 | MacroPolo Ent | £ 114,889,566 | |
| 12517 | MacroPolo Inc | £ 59,339,741 | |
| 12518 | Macros The Black | £ 93,166,215 | |
| 12519 | macs united | £ 170,666 | |
| 12520 | MactheKnife | £ 12,601,969 | |
| 12521 | Macwill | £ 5,259,176 | |
| 12522 | macwill2285 | £ 9,334,215 | |
| 12523 | MAD AS HELL | £ 2,349,476 | |
| 12524 | Mad Cow Disease | £ 367,617,936 | |
| 12525 | Mad Dog Coll | £ 49,819,135 | |
| 12526 | Mad Dog Enterprise | £ 32,168,238 | |
| 12527 | Mad Dog Ltd | £ 50,000 | |
| 12528 | Mad Dogg Money | £ 65,796,411 | |
| 12529 | Mad Dogs | £ 57,790,153 | |
| 12530 | Mad Fortunate | £ 50,000 | |
| 12531 | madamada | £ 233,630 | |
| 12532 | Madd Dogg 2020 | £ 10,742,409 | |
| 12533 | MadDogHoldings | £ 5,043,725 | |
| 12534 | Maddy Moo | £ 115,199,118 | |
| 12535 | Made a better decision | £ 51,894,350 | |
| 12536 | Made in Brazil | £ 61,550,105 | |
| 12537 | Made in canada | £ 5,496,632 | |
| 12538 | Made in China | £ 60,382,429 | |
| 12539 | Made in India | £ 18,870,885 | |
| 12540 | made it | £ 9,045,642 | |
| 12541 | madeds | £ 95,442 | |
| 12542 | Madeira Inc | £ 131,914,835 | |
| 12543 | MadHatter | £ -238,315 | |
| 12544 | Madison Square Gardens | £ 1,094,936,784 | |
| 12545 | MadMafia | £ 132,483,479 | |
| 12546 | madman enterprise | £ 2,426,958 | |
| 12547 | madmen | £ 2,133,394,509 | |
| 12548 | Madness | £ 6,736,333 | |
| 12549 | Madness Holdings | £ 6,130,507 | |
| 12550 | Madness Inc | £ 71,179,360 | |
| 12551 | MadridCo | £ 63,090,434 | |
| 12552 | Madtax | £ 60,599,818 | |
| 12553 | Maelstrom | £ 74,490 | |
| 12554 | Maes | £ 5,506,699 | |
| 12555 | Maestro Inc | £ 10,020,096 | |
| 12556 | Maestro1 | £ 9,268,941 | |
| 12557 | Maestro3 | £ 50,000 | |
| 12558 | MaFFia | £ 125,881,473 | |
| 12559 | Mafia | £ 1,753,185 | |
| 12560 | Mafia Company | £ 30,978,732 | |
| 12561 | Mafia Enterprises | £ 8,427,838 | |
| 12562 | Mafia Mexicana | £ 535,846,768 | |
| 12563 | mafism | £ 22,493,332 | |
| 12564 | Mag1c | £ 9,025,059 | |
| 12565 | MAGA | £ 149,392,802 | |
| 12566 | Magazine Distributors | £ 37,320,017 | |
| 12567 | Magdalene | £ 1,003,412,911 | |
| 12568 | Magellan of Voyage | £ 5,290,991 | |
| 12569 | Magenta Weed | £ 271,410,952 | |
| 12570 | Maggic7 | £ -443,731 | |
| 12571 | Magic | £ 487,337,098 | |
| 12572 | Magic Carpet | £ 11,874,743 | |
| 12573 | Magic Emporium | £ 103,205,187 | |
| 12574 | Magic Industries | £ -1,643 | |
| 12575 | Magic Mirror | £ 2,172,047 | |
| 12576 | Magic Monkeyz | £ 8,114,425 | |
| 12577 | Magic Mountain | £ 64,279,961 | |
| 12578 | Magic Mushrooms | £ 160,108,013 | |
| 12579 | Magic Pie | £ 490,215,342 | |
| 12580 | Magic Rock Garden | £ 88,058,735 | |
| 12581 | Magic Round About | £ 60,232,415 | |
| 12582 | Magic Roundabout | £ 5,733,823 | |
| 12583 | Magic Tricks | £ 213,972,474 | |
| 12584 | Magic Unicorns | £ 5,507,889 | |
| 12585 | Magician | £ 43,263,578 | |
| 12586 | MagicMan LTD | £ 57,212,902 | |
| 12587 | magics | £ 169,700,855 | |
| 12588 | Magik | £ 8,435,088 | |
| 12589 | Magikarp | £ 54,441,892 | |
| 12590 | magma | £ 256,976,687 | |
| 12591 | Magnag Industries | £ 5,423,817 | |
| 12592 | Magnesia | £ 49,545,385 | |
| 12593 | Magnesium | £ -10,504,907 | |
| 12594 | Magneto | £ 45,020,225 | |
| 12595 | Magneto. | £ 91,525,507 | |
| 12596 | Magnets | £ 39,260,667 | |
| 12597 | Magnolia Properties | £ 5,505,968 | |
| 12598 | Magnum P.I. | £ 4,478,573,315 | |
| 12599 | Magnus Global | £ 79,802,258 | |
| 12600 | MagnusCorp | £ 56,468,260 | |
