The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 14201 | Media Player | £ 11,385,898 | |
| 14202 | Medical City | £ 1,817,941,901 | |
| 14203 | Medications | £ 56,501,237 | |
| 14204 | Medicine | £ 107,658,336 | |
| 14205 | Medicine.Com | £ 184,984,146 | |
| 14206 | Medient | £ 508,983 | |
| 14207 | Mediolanum | £ 89,849,157 | |
| 14208 | Mediumship | £ 717,209,782 | |
| 14209 | MedPharm | £ 62,403,617 | |
| 14210 | Medusa | £ 290,947,180 | |
| 14211 | Medwain | £ 110,111,172 | |
| 14212 | Mee | £ 27,657,186 | |
| 14213 | Meebs | £ 44,841,824 | |
| 14214 | Meeney Corp | £ 9,839,052 | |
| 14215 | Meeny Inc | £ 22,570,987 | |
| 14216 | Meep meep | £ 493,156,074 | |
| 14217 | Meerkats | £ 550,594,543 | |
| 14218 | MEG LTD | £ 23,571 | |
| 14219 | Mega Blox | £ 29,090,243,922 | |
| 14220 | Mega Boxes Around | £ 178,943,238 | |
| 14221 | MEGA BUDZ | £ 141,053 | |
| 14222 | Mega Bus | £ 57,000,909 | |
| 14223 | Mega Corporation | £ 172,049 | |
| 14224 | Mega Corporations | £ 46,579,095 | |
| 14225 | Mega Mindy | £ 4,096,781 | |
| 14226 | Mega Mullets | £ 124,881,083 | |
| 14227 | MEGA Resources | £ 572,731 | |
| 14228 | Mega Streak | £ 177,294,963 | |
| 14229 | Megababy Co. | £ 50,000 | |
| 14230 | Megabucks | £ 111,934 | |
| 14231 | Megabucks Dundee | £ 50,000 | |
| 14232 | Megabucks Inc | £ 5,930,887 | |
| 14233 | Megabucks United | £ 4,290,972 | |
| 14234 | Megabyte Systems | £ 48,846,661 | |
| 14235 | Megacorp | £ 594,680 | |
| 14236 | MEGACUCKxXxPEENLOVER | £ 6,893,653 | |
| 14237 | Megadeth | £ 65,357,403 | |
| 14238 | MegaDeth Mob | £ 61,516,745 | |
| 14239 | MegaloMafia | £ 612,786 | |
| 14240 | megamolloy | £ 2,797,245 | |
| 14241 | megamolloy3 | £ 4,226,104 | |
| 14242 | megapolis | £ 27,651,775 | |
| 14243 | Megasuperbadass Mart | £ 2,903,109 | |
| 14244 | Megaton | £ 290,639,244 | |
| 14245 | Megaton Atomic Research | £ 7,533,717 | |
| 14246 | Megatron | £ 397,174,154 | |
| 14247 | Mehoff Erection Co | £ 4,005,620 | |
| 14248 | Mehrunes Dagon | £ 293,462,589 | |
| 14249 | Mein Kampf | £ 183,164,770 | |
| 14250 | Melandas | £ 4,266,236 | |
| 14251 | Melandas Dynasty | £ 4,129,183 | |
| 14252 | Melandas General | £ 2,020,971 | |
| 14253 | Melandas Global | £ 3,541,345 | |
| 14254 | Melandas Pte Ltd | £ 3,229,876 | |
| 14255 | Melbourne | £ 419,554,023 | |
| 14256 | Melissa | £ 2,099,518,119 | |
| 14257 | Mellonballs | £ 9,882 | |
| 14258 | Mellons | £ 11,146 | |
| 14259 | Melly Wilkes | £ 37,969,367 | |
| 14260 | Melodic Minor | £ 38,491,832 | |
| 14261 | Melon Strawberry | £ 15,157,372 | |
| 14262 | Melting Apples | £ 53,274,340 | |
| 14263 | Melvin Capital | £ 16,421,242 | |
| 14264 | Members Only | £ 3,896,168 | |
| 14265 | Memo Re Foam | £ 163,951,375 | |
| 14266 | Memoria | £ 82,597,593 | |
| 14267 | Memories of Things | £ 420,259,351 | |
| 14268 | Memorize | £ 69,073,122 | |
| 14269 | Memory | £ 8,338,774 | |
| 14270 | memory lane | £ 158,098,270 | |
| 14271 | Men | £ 51,105,006 | |
| 14272 | Men In Black | £ 15,048,355 | |
| 14273 | men of mayhem | £ 5,110,741 | |
| 14274 | Menace | £ 120,290,215 | |
| 14275 | Mend | £ 28,443,353 | |
| 14276 | Mendozas | £ 10,155,704 | |
| 14277 | Menial Duties | £ 13,587,228 | |
| 14278 | Mensa | £ 30,678,192 | |
| 14279 | Mental | £ 18,517,755 | |
| 14280 | Mental corp | £ 50,000 | |
| 14281 | Mental Depression | £ 221,209 | |
| 14282 | Mental Disease | £ 619,169,867 | |
| 14283 | Meow Meow Corporation | £ 9,692,122 | |
| 14284 | Meowmeows | £ 6,546,378 | |
| 14285 | Mephisto | £ 230,844,295 | |
| 14286 | Mephistopheles | £ 11,390,049 | |
| 14287 | Mercedes | £ 333,388,191 | |
| 14288 | Mercedes Benz | £ 13,561,258 | |
| 14289 | Mercedes-Benz | £ 1,543,979,255 | |
| 14290 | Mercedes-Benz. | £ 12,670,498 | |
| 14291 | MercedesAMG Petronas F1 | £ 54,084,993 | |
| 14292 | Mercenaries | £ 1,427,822,080 | |
| 14293 | Mercenaries R Us | £ 119,524,890 | |
| 14294 | Merchiston | £ 79,224,604 | |
| 14295 | Merciful | £ 108,311,741 | |
| 14296 | Merck and Co Inc | £ 55,000,000 | |
| 14297 | Mercurial Holdings | £ 1,211,985,338 | |
| 14298 | Mercury | £ 88,453,970 | |
| 14299 | Mercy | £ 349,349,131 | |
| 14300 | Mercy Mercy Mercy | £ 65,668,893 | |
