The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 10401 | MaxAttack Ltd | £ 773,584 | |
| 10402 | Maxima | £ 9,994,577 | |
| 10403 | Maximas | £ 50,000 | |
| 10404 | Maximum | £ -2,213,330 | |
| 10405 | Maximum Force | £ 756,904,724 | |
| 10406 | Maximum Profit | £ 5,583,604 | |
| 10407 | MaximumRetaliation | £ 345,639 | |
| 10408 | Maximus Inc | £ -27,673 | |
| 10409 | maximus industries | £ 52,863,673 | |
| 10410 | Maximus Pyrotechnics | £ -22,809,232 | |
| 10411 | Maximus Storage | £ 4,310,218 | |
| 10412 | Maximuscle | £ 3,759,106 | |
| 10413 | Maxxis | £ 2,547,439 | |
| 10414 | May | £ 321,223,063 | |
| 10415 | May Day | £ 10,362,997 | |
| 10416 | May Hay | £ 6,903,268 | |
| 10417 | may help | £ 23,308,617 | |
| 10418 | Maya | £ 788,764,343 | |
| 10419 | Mayans | £ 28,668,150 | |
| 10420 | Maybach Music | £ 12,470,379 | |
| 10421 | Mayhem | £ 116,618,582 | |
| 10422 | Mayoland Inc. | £ -390,754 | |
| 10423 | Maz1 | £ 4,123,280 | |
| 10424 | Maz2 | £ 4,145,139 | |
| 10425 | Maz3 | £ 4,137,031 | |
| 10426 | Maz4 | £ 4,101,386 | |
| 10427 | Maziacs | £ 214,690,206 | |
| 10428 | MazManInc | £ 258,718 | |
| 10429 | mbm | £ 81,202,527 | |
| 10430 | mc3 | £ 62,358,543 | |
| 10431 | Mcboobs Knocking Shops | £ 27,084 | |
| 10432 | mcbuttface | £ 3,955,729 | |
| 10433 | McCann Ind | £ -29,449 | |
| 10434 | McCormick Enterprises | £ 704,217 | |
| 10435 | McDAB | £ 53,108,625 | |
| 10436 | McDonalds | £ 18,885,463 | |
| 10437 | Mcdonalds Corporation | £ 134,518,979 | |
| 10438 | McDonaldsZim | £ 63,176,931 | |
| 10439 | McDumponface | £ 3,660 | |
| 10440 | McFadden | £ -131,571 | |
| 10441 | Mcfc88 | £ 5,201,809 | |
| 10442 | McGarrett | £ 193,129,471 | |
| 10443 | McGeeters | £ 83,681 | |
| 10444 | McGirk Waste Management | £ 2,848,421 | |
| 10445 | MCI Communications | £ 134,374,955 | |
| 10446 | Mckutchen | £ 1,830,803 | |
| 10447 | Mclaren Mercedes | £ 2,778,685 | |
| 10448 | McLovin | £ 2,299,983 | |
| 10449 | mcm | £ 57,999,853 | |
| 10450 | McNasty Burgers | £ 61,139,769 | |
| 10451 | McNuthugger | £ 5,002,136 | |
| 10452 | MCOC | £ 56,966,011 | |
| 10453 | Mcsmash | £ -11,927 | |
| 10454 | MDD Company | £ 34,883,687 | |
| 10455 | MDD3 company | £ 52,874,397 | |
| 10456 | MDD4 company | £ 39,561,399 | |
| 10457 | MDMA | £ 58,653,746 | |
| 10458 | Mdog 4 life | £ 111,028,668 | |
| 10459 | Mdog Enterprises | £ 241,225,148 | |
| 10460 | MDW Business | £ 5,507,240 | |
| 10461 | Me And I | £ 629,795 | |
| 10462 | me corp | £ 2,801,416 | |
| 10463 | Me crack in | £ 131,344,322 | |
| 10464 | me free | £ 367,615,854 | |
| 10465 | Me Only | £ 4,926,881 | |
| 10466 | Me Please | £ 82,095,731 | |
| 10467 | Me Silly | £ 106,123,518 | |
| 10468 | Me to see | £ 62,947,323 | |
| 10469 | Me, Im Counting | £ 4,820,143,977 | |
| 10470 | MEA | £ 356,839,045 | |
| 10471 | Meadow | £ 349,035,541 | |
| 10472 | Meal Time | £ 53,033,234 | |
| 10473 | Mean and Deadly LTD | £ 10,098,464 | |
| 10474 | Mean Electricity Ltd | £ -5,065,941 | |
| 10475 | Mean Machine | £ 174,248,395 | |
| 10476 | Mean Machine 10 | £ 101,887,250 | |
| 10477 | Mean Machine 11 | £ 83,273,024 | |
| 10478 | Mean Machine 12 | £ 24,847,409 | |
| 10479 | Mean Machine 2 | £ 112,632,517 | |
| 10480 | Mean Machine 3 | £ 125,726,960 | |
| 10481 | Mean Machine 4 | £ 180,450,398 | |
| 10482 | Mean Machine 5 | £ 160,955,182 | |
| 10483 | Mean Machine 6 | £ 135,487,477 | |
| 10484 | Mean Machine 7 | £ 104,371,655 | |
| 10485 | Mean Machine 8 | £ 124,950,567 | |
| 10486 | Mean Machine 9 | £ 104,923,716 | |
| 10487 | Meanies | £ 8,065,960 | |
| 10488 | Meaning | £ 261,740,977 | |
| 10489 | meanmoney | £ 288,694 | |
| 10490 | Means | £ 149,523,568 | |
| 10491 | Meastro2 | £ 239,761 | |
| 10492 | Measurement | £ 102,893,591 | |
| 10493 | MEAT | £ 67,857,491 | |
| 10494 | meat locker | £ 4,528,034 | |
| 10495 | Meat Pies | £ 4,217,653 | |
| 10496 | Meat popsticle | £ 18,382,336 | |
| 10497 | meats | £ 78,822,816 | |
| 10498 | MeatSacks LTD | £ 3,245,824 | |
| 10499 | Meatwads Dance Xplosion | £ 14,858,073 | |
| 10500 | mebers^6 | £ 1,012,181 | |
