The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 13801 | Max Pain | £ 135,911,956 | |
| 13802 | MaxAttack Ltd | £ 773,584 | |
| 13803 | Maxima | £ 9,994,577 | |
| 13804 | Maximas | £ 50,000 | |
| 13805 | Maximize your Lips | £ 3,373,774 | |
| 13806 | Maximum | £ -2,213,330 | |
| 13807 | Maximum Appeal Lettings | £ 52,332,978 | |
| 13808 | Maximum Force | £ 756,904,724 | |
| 13809 | Maximum Profit | £ 5,583,604 | |
| 13810 | MaximumRetaliation | £ 345,639 | |
| 13811 | Maximus Inc | £ -27,673 | |
| 13812 | maximus industries | £ 52,863,673 | |
| 13813 | Maximus Pyrotechnics | £ -22,809,232 | |
| 13814 | Maximus Storage | £ 4,310,218 | |
| 13815 | Maximuscle | £ 3,759,106 | |
| 13816 | Maxo-Million | £ 255,158 | |
| 13817 | Maxxis | £ 2,547,439 | |
| 13818 | May | £ 321,223,063 | |
| 13819 | may help | £ 23,308,617 | |
| 13820 | Maya | £ 857,798,735 | |
| 13821 | Mayans | £ 28,668,150 | |
| 13822 | Mayans MC | £ 422,412,444 | |
| 13823 | Maybach Music | £ 12,470,379 | |
| 13824 | Maybe next day | £ 3,220,045 | |
| 13825 | Maybe tomorrow | £ 8,640,605 | |
| 13826 | Mayday | £ 1,957,450 | |
| 13827 | Mayfair | £ 44,991,101 | |
| 13828 | Mayhem | £ 116,618,582 | |
| 13829 | Mayhem. | £ 126,053,178 | |
| 13830 | Mayoland Inc. | £ -390,754 | |
| 13831 | Maz1 | £ 4,123,280 | |
| 13832 | Maz2 | £ 4,145,139 | |
| 13833 | Maz3 | £ 4,137,031 | |
| 13834 | Maz4 | £ 4,101,386 | |
| 13835 | Mazda | £ 9,519,369 | |
| 13836 | Mazeryk Enterprise | £ 84,958,060 | |
| 13837 | Maziacs | £ 214,690,206 | |
| 13838 | MazManInc | £ 258,718 | |
| 13839 | mbm | £ 81,202,527 | |
| 13840 | Mc Dowells 2.0 | £ 14,294,011 | |
| 13841 | mc3 | £ 62,358,543 | |
| 13842 | McBombFace | £ 3,871,640 | |
| 13843 | Mcboobs Knocking Shops | £ 27,084 | |
| 13844 | mcbuttface | £ 3,955,729 | |
| 13845 | McCann Ind | £ -29,449 | |
| 13846 | McClaren | £ 5,510,036 | |
| 13847 | McCompanyFace | £ 123,872,311 | |
| 13848 | McCon Inc. | £ 82,346,992 | |
| 13849 | McCormick Enterprises | £ 704,217 | |
| 13850 | McCullagh | £ 80,199,001 | |
| 13851 | McDAB | £ 76,475,382 | |
| 13852 | McDavid | £ 5,507,687 | |
| 13853 | McDonalds | £ 18,885,463 | |
| 13854 | Mcdonalds Corporation | £ 134,518,979 | |
| 13855 | McDonaldsZim | £ 63,176,931 | |
| 13856 | McDuck Enterprises | £ 107,779,687 | |
| 13857 | McDumponface | £ 3,660 | |
| 13858 | McFadden | £ -131,571 | |
| 13859 | Mcfc88 | £ 20,094,751 | |
| 13860 | McGeeters | £ 83,681 | |
| 13861 | McGill | £ 56,464,284 | |
| 13862 | McGirk Waste Management | £ 86,656 | |
| 13863 | MCI Communications | £ 134,374,955 | |
| 13864 | McIntyre | £ 70,204,530 | |
| 13865 | Mclaren Mercedes | £ 2,778,685 | |
| 13866 | McLeod | £ 547,189,799 | |
| 13867 | McLovin | £ 2,299,983 | |
| 13868 | mclovin inc | £ -861,532 | |
| 13869 | mcm | £ 57,999,853 | |
| 13870 | McMurray | £ 400,570,617 | |
| 13871 | McNasty Burgers | £ 61,139,769 | |
| 13872 | MCOC | £ 56,966,011 | |
| 13873 | Mcsmash | £ -11,927 | |
| 13874 | MDD Company | £ 34,883,687 | |
| 13875 | MDD3 company | £ 52,874,397 | |
| 13876 | MDD4 company | £ 39,561,399 | |
| 13877 | MDMA | £ 58,653,746 | |
| 13878 | Mdog 4 life | £ 233,659,584 | |
| 13879 | Mdog Enterprises | £ 164,256,199 | |
| 13880 | MDP | £ 405,798,422 | |
| 13881 | MDW Business | £ 5,507,240 | |
| 13882 | Me And I | £ 629,795 | |
| 13883 | me corp | £ 2,801,416 | |
| 13884 | Me crack in | £ 131,344,322 | |
| 13885 | Me Old Mucker | £ -6,428,227 | |
| 13886 | Me Only | £ 4,926,881 | |
| 13887 | Me Please | £ 82,095,731 | |
| 13888 | Me Silly | £ 106,123,518 | |
| 13889 | Me to see | £ 62,947,323 | |
| 13890 | Me, Im Counting | £ 4,820,143,977 | |
| 13891 | MEA | £ 356,839,045 | |
| 13892 | Meadow | £ 349,035,541 | |
| 13893 | Meal Time | £ 53,033,234 | |
| 13894 | Mean and Deadly LTD | £ 10,098,464 | |
| 13895 | Mean Electricity Ltd | £ -5,065,941 | |
| 13896 | Mean Machine | £ 174,484,012 | |
| 13897 | Mean Machine 10 | £ 101,887,250 | |
| 13898 | Mean Machine 11 | £ 83,273,024 | |
| 13899 | Mean Machine 12 | £ 24,847,409 | |
| 13900 | Mean Machine 2 | £ 112,632,517 | |
