The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 10401 | Matador Cattle Company | £ 5,024,777 | |
| 10402 | matches | £ 795,209,718 | |
| 10403 | Matches plus Petrol | £ 241,619,367 | |
| 10404 | Matchlock | £ 324,682 | |
| 10405 | Materia | £ 19,046,923 | |
| 10406 | Mathewmatics | £ 6,466,483 | |
| 10407 | Matrix | £ 14,797,169 | |
| 10408 | Matrix Reimbursed | £ 134,369,263 | |
| 10409 | Mats | £ 6,079,772,915 | |
| 10410 | Matt Coprporations | £ 25,939,511 | |
| 10411 | Matt Corp 2 | £ 5,507,664 | |
| 10412 | Matt Lange | £ 171,005,052 | |
| 10413 | Matt Schaub | £ 210,415,111 | |
| 10414 | Matter | £ 70,114,527 | |
| 10415 | Matthews Kiosks | £ 877,790 | |
| 10416 | Mattikins | £ 50,000 | |
| 10417 | Matts money | £ 1,189,880 | |
| 10418 | Matts Place | £ 4,023,510 | |
| 10419 | Matty B Inc 7 | £ -331,481 | |
| 10420 | matty mears corporation | £ 7,886,001 | |
| 10421 | matty mears plc | £ 76,777,292 | |
| 10422 | MattyBinc | £ 69,763,618 | |
| 10423 | MattyBinc2 | £ 96,555,685 | |
| 10424 | MattyBinc3 | £ 38,675,838 | |
| 10425 | MattyBinc8 | £ 62,049,472 | |
| 10426 | Mau5trap | £ 939,845 | |
| 10427 | Mauro | £ 5,504,457 | |
| 10428 | mauro mania | £ 50,000 | |
| 10429 | maurotech | £ 548,809 | |
| 10430 | Mauve en Wit | £ 24,014,076 | |
| 10431 | Maverick Inc | £ 14,453,208 | |
| 10432 | Maverick Trouble Inc | £ 37,638,244 | |
| 10433 | Mavs | £ -158,119 | |
| 10434 | Maw | £ 5,504,812 | |
| 10435 | MaWahhh | £ 90,231,150 | |
| 10436 | MawkiMawki | £ 6,983,736 | |
| 10437 | Max Cash Grab Stuff Inc | £ 4,492,788 | |
| 10438 | Max Power | £ 113,331,826 | |
| 10439 | MaxAttack Ltd | £ 773,584 | |
| 10440 | Maxima | £ 9,994,577 | |
| 10441 | Maximas | £ 50,000 | |
| 10442 | Maximum | £ -2,213,330 | |
| 10443 | Maximum Force | £ 756,904,724 | |
| 10444 | Maximum Profit | £ 5,583,604 | |
| 10445 | MaximumRetaliation | £ 345,639 | |
| 10446 | Maximus Inc | £ -27,673 | |
| 10447 | maximus industries | £ 52,863,673 | |
| 10448 | Maximus Pyrotechnics | £ -22,809,232 | |
| 10449 | Maximus Storage | £ 4,310,218 | |
| 10450 | Maximuscle | £ 3,759,106 | |
| 10451 | Maxxis | £ 2,547,439 | |
| 10452 | May | £ 321,223,063 | |
| 10453 | May Day | £ 10,362,997 | |
| 10454 | May Hay | £ 6,903,268 | |
| 10455 | may help | £ 23,308,617 | |
| 10456 | Maya | £ 788,764,343 | |
| 10457 | Mayans | £ 28,668,150 | |
| 10458 | Maybach Music | £ 12,470,379 | |
| 10459 | Mayhem | £ 116,618,582 | |
| 10460 | Mayoland Inc. | £ -390,754 | |
| 10461 | Maz1 | £ 4,123,280 | |
| 10462 | Maz2 | £ 4,145,139 | |
| 10463 | Maz3 | £ 4,137,031 | |
| 10464 | Maz4 | £ 4,101,386 | |
| 10465 | Maziacs | £ 214,690,206 | |
| 10466 | MazManInc | £ 258,718 | |
| 10467 | mbm | £ 81,202,527 | |
| 10468 | Mc Dowells 2.0 | £ 14,294,011 | |
| 10469 | mc3 | £ 62,358,543 | |
| 10470 | Mcboobs Knocking Shops | £ 27,084 | |
| 10471 | mcbuttface | £ 3,955,729 | |
| 10472 | McCann Ind | £ -29,449 | |
| 10473 | McCon Inc. | £ 82,215,885 | |
| 10474 | McCormick Enterprises | £ 704,217 | |
| 10475 | McDAB | £ 53,108,625 | |
| 10476 | McDonalds | £ 18,885,463 | |
| 10477 | Mcdonalds Corporation | £ 134,518,979 | |
| 10478 | McDonaldsZim | £ 63,176,931 | |
| 10479 | McDumponface | £ 3,660 | |
| 10480 | McFadden | £ -131,571 | |
| 10481 | Mcfc88 | £ 5,201,809 | |
| 10482 | McGarrett | £ 193,129,471 | |
| 10483 | McGeeters | £ 83,681 | |
| 10484 | McGirk Waste Management | £ 2,848,421 | |
| 10485 | MCI Communications | £ 134,374,955 | |
| 10486 | Mckutchen | £ 1,830,803 | |
| 10487 | Mclaren Mercedes | £ 2,778,685 | |
| 10488 | McLovin | £ 2,299,983 | |
| 10489 | mcm | £ 57,999,853 | |
| 10490 | McNasty Burgers | £ 61,139,769 | |
| 10491 | McNuthugger | £ 5,002,136 | |
| 10492 | MCOC | £ 56,966,011 | |
| 10493 | Mcsmash | £ -11,927 | |
| 10494 | MDD Company | £ 34,883,687 | |
| 10495 | MDD3 company | £ 52,874,397 | |
| 10496 | MDD4 company | £ 39,561,399 | |
| 10497 | MDMA | £ 58,653,746 | |
| 10498 | Mdog 4 life | £ 111,028,668 | |
| 10499 | Mdog Enterprises | £ 241,225,148 | |
| 10500 | MDW Business | £ 5,507,240 | |
