The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 13901 | McGirk Waste Management | £ 86,656 | |
| 13902 | MCI Communications | £ 134,374,955 | |
| 13903 | McIntyre | £ 70,204,530 | |
| 13904 | Mclaren Mercedes | £ 2,778,685 | |
| 13905 | McLeod | £ 581,093,849 | |
| 13906 | McLovin | £ 2,299,983 | |
| 13907 | mclovin inc | £ -861,532 | |
| 13908 | mcm | £ 57,999,853 | |
| 13909 | McMurray | £ 400,570,617 | |
| 13910 | McNasty Burgers | £ 61,139,769 | |
| 13911 | MCOC | £ 56,966,011 | |
| 13912 | Mcsmash | £ -11,927 | |
| 13913 | MDD Company | £ 34,883,687 | |
| 13914 | MDD3 company | £ 52,874,397 | |
| 13915 | MDD4 company | £ 39,561,399 | |
| 13916 | MDMA | £ 58,653,746 | |
| 13917 | Mdog 4 life | £ 233,659,584 | |
| 13918 | Mdog Enterprises | £ 164,256,199 | |
| 13919 | MDP | £ 477,798,422 | |
| 13920 | MDW Business | £ 5,507,240 | |
| 13921 | Me And I | £ 629,795 | |
| 13922 | me corp | £ 2,801,416 | |
| 13923 | Me crack in | £ 131,344,322 | |
| 13924 | Me Old Mucker | £ -6,428,227 | |
| 13925 | Me Only | £ 4,926,881 | |
| 13926 | Me Please | £ 82,095,731 | |
| 13927 | Me Silly | £ 106,123,518 | |
| 13928 | Me to see | £ 62,947,323 | |
| 13929 | Me, Im Counting | £ 4,820,143,977 | |
| 13930 | MEA | £ 356,839,045 | |
| 13931 | Meadow | £ 349,035,541 | |
| 13932 | Meal Time | £ 53,033,234 | |
| 13933 | Mean and Deadly LTD | £ 10,098,464 | |
| 13934 | Mean Electricity Ltd | £ -5,065,941 | |
| 13935 | Mean Machine | £ 174,484,012 | |
| 13936 | Mean Machine 10 | £ 101,887,250 | |
| 13937 | Mean Machine 11 | £ 83,273,024 | |
| 13938 | Mean Machine 12 | £ 24,847,409 | |
| 13939 | Mean Machine 2 | £ 112,632,517 | |
| 13940 | Mean Machine 3 | £ 125,726,960 | |
| 13941 | Mean Machine 4 | £ 180,450,398 | |
| 13942 | Mean Machine 5 | £ 160,955,182 | |
| 13943 | Mean Machine 6 | £ 135,487,477 | |
| 13944 | Mean Machine 7 | £ 104,371,655 | |
| 13945 | Mean Machine 8 | £ 124,950,567 | |
| 13946 | Mean Machine 9 | £ 104,923,716 | |
| 13947 | Meanies | £ 8,065,960 | |
| 13948 | Meaning | £ 261,740,977 | |
| 13949 | meanmoney | £ 288,694 | |
| 13950 | Means | £ 1,785,933,109 | |
| 13951 | Means Motive Opportunity | £ 1,345,501,185 | |
| 13952 | Meastro2 | £ 4,609,257 | |
| 13953 | Measurement | £ 1,528,484,989 | |
| 13954 | MEAT | £ 67,857,491 | |
| 13955 | meat locker | £ 4,528,034 | |
| 13956 | Meat popsticle | £ 18,382,336 | |
| 13957 | meats | £ 682,792,016 | |
| 13958 | MeatSacks LTD | £ 3,245,824 | |
| 13959 | MeatTrainers | £ 52,950,887 | |
| 13960 | Meatwads Dance Xplosion | £ 14,858,073 | |
| 13961 | mebers^6 | £ 1,012,181 | |
| 13962 | Mechanical Knowledge | £ 103,853,932 | |
| 13963 | Mechastein | £ 113,756,702 | |
| 13964 | Mechastein Inc | £ 60,914,193 | |
| 13965 | Mechrock | £ 397,826,364 | |
| 13966 | Medellin | £ 50,862,569 | |
| 13967 | Medellin 27 | £ 53,516,627 | |
| 13968 | Medellin11 | £ 14,324,116 | |
| 13969 | Medellin13 | £ 9,320,397 | |
| 13970 | Medellin14 | £ 43,936,125 | |
| 13971 | Medellin15 | £ 9,449,650 | |
| 13972 | Medellin18 | £ 9,715,074 | |
| 13973 | Medellin19 | £ 9,771,854 | |
| 13974 | Medellin21 | £ 8,526,495 | |
| 13975 | Medellin22 | £ 66,503,573 | |
| 13976 | Medellin23 | £ 9,043,868 | |
| 13977 | Medellin25 | £ 55,157,731 | |
| 13978 | Medellin26 | £ 50,075,334 | |
| 13979 | Medellin29 | £ 53,439,326 | |
| 13980 | Medellin3 | £ 67,029,656 | |
| 13981 | Medellin30 | £ 9,633,365 | |
| 13982 | Medellin33 | £ 45,801,993 | |
| 13983 | Medellin36 | £ 52,623,838 | |
| 13984 | Medellin37 | £ 9,869,438 | |
| 13985 | Medellin40 | £ 42,113,613 | |
| 13986 | Medellin45 | £ 53,676,086 | |
| 13987 | Medellin5 | £ 9,526,491 | |
| 13988 | Medellin6 | £ 40,386,449 | |
| 13989 | Medellin7 | £ 43,088,872 | |
| 13990 | Media Market | £ 31,425,226 | |
| 13991 | Media Player | £ 11,385,898 | |
| 13992 | Medical City | £ 1,817,323,596 | |
| 13993 | Medications | £ 56,501,237 | |
| 13994 | Medicine | £ 107,658,336 | |
| 13995 | Medicine.Com | £ 184,984,146 | |
| 13996 | Medient | £ 508,983 | |
| 13997 | Mediolanum | £ 89,849,157 | |
| 13998 | Mediumship | £ 668,157,488 | |
| 13999 | MedPharm | £ 62,403,617 | |
| 14000 | Medusa | £ 290,947,180 | |
