The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 12201 | mastermolloy1 | £ 4,589,292 | |
| 12202 | mastermolloy4 | £ 878,532 | |
| 12203 | Masters | £ 1,224,341,919 | |
| 12204 | mastertkd | £ 156,322,341 | |
| 12205 | Masterton | £ 9,742,506 | |
| 12206 | Mata.inc | £ 13,598,445 | |
| 12207 | Matador Cattle Company | £ 5,024,777 | |
| 12208 | matches | £ 795,209,718 | |
| 12209 | Matches plus Petrol | £ 250,708,917 | |
| 12210 | Matchlock | £ 324,682 | |
| 12211 | Matchstick Men | £ 49,555,217 | |
| 12212 | Materia | £ 19,046,923 | |
| 12213 | Materials | £ 5,293,904 | |
| 12214 | Mathewmatics | £ 6,466,483 | |
| 12215 | Matrix | £ 14,797,169 | |
| 12216 | Matrix Reimbursed | £ 134,369,263 | |
| 12217 | Mats | £ 6,079,772,915 | |
| 12218 | Matt Coprporations | £ 25,939,511 | |
| 12219 | Matt Corp 2 | £ 5,507,664 | |
| 12220 | Matt Schaub | £ 210,415,111 | |
| 12221 | Matter | £ 811,765,265 | |
| 12222 | matthew martin | £ 11,196,263 | |
| 12223 | Matthews Kiosks | £ 877,790 | |
| 12224 | Mattikins | £ 50,000 | |
| 12225 | MattMurdoch | £ 66,808,737 | |
| 12226 | Matts money | £ 1,189,880 | |
| 12227 | Matts Place | £ 4,023,510 | |
| 12228 | Matty B Inc 7 | £ -331,481 | |
| 12229 | matty mears corporation | £ 7,886,001 | |
| 12230 | matty mears plc | £ 76,777,292 | |
| 12231 | MattyBinc | £ 69,763,618 | |
| 12232 | MattyBinc2 | £ 96,555,685 | |
| 12233 | MattyBinc3 | £ 38,675,838 | |
| 12234 | MattyBinc8 | £ 62,049,472 | |
| 12235 | Mau5trap | £ 939,845 | |
| 12236 | Maui Waui | £ -690,143 | |
| 12237 | Mauro | £ 5,504,457 | |
| 12238 | mauro mania | £ 50,000 | |
| 12239 | maurotech | £ 548,809 | |
| 12240 | Mauve en Wit | £ 29,086,507 | |
| 12241 | Maverick Inc | £ 14,453,208 | |
| 12242 | Maverick Trouble Inc | £ 37,638,244 | |
| 12243 | Mavs | £ -158,119 | |
| 12244 | Maw | £ 5,504,812 | |
| 12245 | MaWahhh | £ 90,231,150 | |
| 12246 | MawkiMawki | £ 6,983,736 | |
| 12247 | Max | £ 32,846,000 | |
| 12248 | Max Cash Grab Stuff Inc | £ 4,492,788 | |
| 12249 | Max Pain | £ 135,911,956 | |
| 12250 | MaxAttack Ltd | £ 773,584 | |
| 12251 | Maxima | £ 9,994,577 | |
| 12252 | Maximas | £ 50,000 | |
| 12253 | Maximum | £ -2,213,330 | |
| 12254 | Maximum Force | £ 756,904,724 | |
| 12255 | Maximum Profit | £ 5,583,604 | |
| 12256 | MaximumRetaliation | £ 345,639 | |
| 12257 | Maximus Inc | £ -27,673 | |
| 12258 | maximus industries | £ 52,863,673 | |
| 12259 | Maximus Pyrotechnics | £ -22,809,232 | |
| 12260 | Maximus Storage | £ 4,310,218 | |
| 12261 | Maximuscle | £ 3,759,106 | |
| 12262 | Maxxis | £ 2,547,439 | |
| 12263 | May | £ 321,223,063 | |
| 12264 | may help | £ 23,308,617 | |
| 12265 | Maya | £ 857,798,735 | |
| 12266 | Mayans | £ 28,668,150 | |
| 12267 | Maybach Music | £ 12,470,379 | |
| 12268 | Mayday | £ 1,957,450 | |
| 12269 | Mayhem | £ 116,618,582 | |
| 12270 | Mayoland Inc. | £ -390,754 | |
| 12271 | Maz1 | £ 4,123,280 | |
| 12272 | Maz2 | £ 4,145,139 | |
| 12273 | Maz3 | £ 4,137,031 | |
| 12274 | Maz4 | £ 4,101,386 | |
| 12275 | Maziacs | £ 214,690,206 | |
| 12276 | MazManInc | £ 258,718 | |
| 12277 | mbm | £ 81,202,527 | |
| 12278 | Mc Dowells 2.0 | £ 14,294,011 | |
| 12279 | mc3 | £ 62,358,543 | |
| 12280 | McBombFace | £ 3,871,640 | |
| 12281 | Mcboobs Knocking Shops | £ 27,084 | |
| 12282 | mcbuttface | £ 3,955,729 | |
| 12283 | McCann Ind | £ -29,449 | |
| 12284 | McCompanyFace | £ 31,457,253 | |
| 12285 | McCon Inc. | £ 82,346,992 | |
| 12286 | McCormick Enterprises | £ 704,217 | |
| 12287 | McDAB | £ 76,475,382 | |
| 12288 | McDavid | £ 5,507,687 | |
| 12289 | McDonalds | £ 18,885,463 | |
| 12290 | Mcdonalds Corporation | £ 134,518,979 | |
| 12291 | McDonaldsZim | £ 63,176,931 | |
| 12292 | McDuck Enterprises | £ 368,141,538 | |
| 12293 | McDumponface | £ 3,660 | |
| 12294 | McFadden | £ -131,571 | |
| 12295 | Mcfc88 | £ 10,404,015 | |
| 12296 | McGeeters | £ 83,681 | |
| 12297 | McGill | £ 55,076,173 | |
| 12298 | McGirk Waste Management | £ 86,656 | |
| 12299 | MCI Communications | £ 134,374,955 | |
| 12300 | Mclaren Mercedes | £ 2,778,685 | |
