The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 13401 | Massive Attack | £ 40,160,601 | |
| 13402 | Massive Debt | £ 1,727,343 | |
| 13403 | Massive Dong Enterprise | £ 5,754,083 | |
| 13404 | MASSIVE ELECTIONS | £ 16,692,085 | |
| 13405 | Massive Inc | £ 6,334,823 | |
| 13406 | Masta Ace Inc | £ 84,177,720 | |
| 13407 | Mastah Holdings | £ 5,504,546 | |
| 13408 | Master Baker | £ 2,027,580 | |
| 13409 | Master bates | £ 4,767 | |
| 13410 | Master Builders | £ 6,821,399 | |
| 13411 | master molloy2 | £ 3,015,413 | |
| 13412 | Master of Zelda | £ -757,416 | |
| 13413 | Master Splinter | £ 462,884,484 | |
| 13414 | Master Sticker Peelers | £ 256,154 | |
| 13415 | Master Swords and Bows | £ 24,666,107 | |
| 13416 | Masterbuilt | £ 537,131,886 | |
| 13417 | mastermolloy1 | £ 4,589,292 | |
| 13418 | mastermolloy4 | £ 878,532 | |
| 13419 | Masters | £ 1,276,472,914 | |
| 13420 | mastertkd | £ 156,322,341 | |
| 13421 | Masterton | £ 9,742,506 | |
| 13422 | Mata.inc | £ 13,598,445 | |
| 13423 | Matador Cattle Company | £ 5,024,777 | |
| 13424 | matches | £ 795,209,718 | |
| 13425 | Matches plus Petrol | £ 250,708,917 | |
| 13426 | Matchlock | £ 324,682 | |
| 13427 | Matchstick Men | £ 49,555,217 | |
| 13428 | Materia | £ 19,046,923 | |
| 13429 | Materials | £ 5,293,904 | |
| 13430 | Mathewmatics | £ 6,466,483 | |
| 13431 | Matrix | £ 14,797,169 | |
| 13432 | Matrix Industries | £ 30,899,641 | |
| 13433 | Matrix Reimbursed | £ 134,369,263 | |
| 13434 | Mats | £ 6,079,772,915 | |
| 13435 | Matt Coprporations | £ 25,939,511 | |
| 13436 | Matt Corp 2 | £ 5,507,664 | |
| 13437 | Matt Schaub | £ 210,415,111 | |
| 13438 | Matter | £ 811,765,265 | |
| 13439 | matthew martin | £ 11,196,263 | |
| 13440 | Matthews Kiosks | £ 877,790 | |
| 13441 | Mattikins | £ 50,000 | |
| 13442 | MattMurdoch | £ 66,808,737 | |
| 13443 | Matts money | £ 1,189,880 | |
| 13444 | Matts Place | £ 4,023,510 | |
| 13445 | Mattski Inc | £ 101,392 | |
| 13446 | Matty B Inc 7 | £ -331,481 | |
| 13447 | matty mears corporation | £ 7,886,001 | |
| 13448 | matty mears plc | £ 76,777,292 | |
| 13449 | MattyBinc | £ 69,763,618 | |
| 13450 | MattyBinc2 | £ 96,555,685 | |
| 13451 | MattyBinc3 | £ 38,675,838 | |
| 13452 | MattyBinc8 | £ 62,049,472 | |
| 13453 | Mau5trap | £ 939,845 | |
| 13454 | Maui Waui | £ -690,143 | |
| 13455 | Mauro | £ 5,504,457 | |
| 13456 | mauro mania | £ 50,000 | |
| 13457 | maurotech | £ 548,809 | |
| 13458 | Mauve en Wit | £ 29,086,507 | |
| 13459 | Maverick Inc | £ 14,453,208 | |
| 13460 | Maverick Trouble Inc | £ 37,638,244 | |
| 13461 | Mavs | £ -158,119 | |
| 13462 | Maw | £ 5,504,812 | |
| 13463 | MaWahhh | £ 90,231,150 | |
| 13464 | MawkiMawki | £ 6,983,736 | |
| 13465 | maws house of life | £ 39,699,207 | |
| 13466 | maws house of life 3 | £ 14,416,934 | |
| 13467 | maws house of life2 | £ 9,040,544 | |
| 13468 | Max | £ 32,846,000 | |
| 13469 | Max Cash Grab Stuff Inc | £ 4,492,788 | |
| 13470 | Max Pain | £ 135,911,956 | |
| 13471 | Maxamillon | £ 37,445,032 | |
| 13472 | MaxAttack Ltd | £ 773,584 | |
| 13473 | Maxima | £ 9,994,577 | |
| 13474 | Maximas | £ 50,000 | |
| 13475 | Maximize your Lips | £ 1,434,561 | |
| 13476 | Maximum | £ -2,213,330 | |
| 13477 | Maximum Force | £ 756,904,724 | |
| 13478 | Maximum Profit | £ 5,583,604 | |
| 13479 | MaximumRetaliation | £ 345,639 | |
| 13480 | Maximus Inc | £ -27,673 | |
| 13481 | maximus industries | £ 52,863,673 | |
| 13482 | Maximus Pyrotechnics | £ -22,809,232 | |
| 13483 | Maximus Storage | £ 4,310,218 | |
| 13484 | Maximuscle | £ 3,759,106 | |
| 13485 | Maxo-Million | £ 255,158 | |
| 13486 | Maxxis | £ 2,547,439 | |
| 13487 | May | £ 321,223,063 | |
| 13488 | may help | £ 23,308,617 | |
| 13489 | Maya | £ 857,798,735 | |
| 13490 | Mayans | £ 28,668,150 | |
| 13491 | Mayans MC | £ 220,631,614 | |
| 13492 | Maybach Music | £ 12,470,379 | |
| 13493 | Maybe next day | £ 3,759,033 | |
| 13494 | Maybe tomorrow | £ 2,606,820 | |
| 13495 | Mayday | £ 1,957,450 | |
| 13496 | Mayfair | £ 44,991,101 | |
| 13497 | Mayhem | £ 116,618,582 | |
| 13498 | Mayhem. | £ 48,623,648 | |
| 13499 | Mayoland Inc. | £ -390,754 | |
| 13500 | Maz1 | £ 4,123,280 | |
