The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 12301 | MMORPG | £ 386,202,529 | |
| 12302 | MMS | £ 728,736 | |
| 12303 | MN Painting | £ 69,865,838 | |
| 12304 | mnb | £ 5,869,704 | |
| 12305 | MNGA | £ -591,189 | |
| 12306 | Mnv | £ 69,523,625 | |
| 12307 | Mo Alba | £ 497,470,179 | |
| 12308 | MOAB | £ 50,000 | |
| 12309 | moarbkup | £ 5,508,731 | |
| 12310 | moarCarparks | £ 5,546,279 | |
| 12311 | MOASS | £ 10,968,075 | |
| 12312 | Mob Life Inc | £ 5,489,924 | |
| 12313 | Mob Mentality | £ 3,456,883 | |
| 12314 | Mobbin Service | £ 37,804,870 | |
| 12315 | Mod786 | £ 28,058,765 | |
| 12316 | Mod7866 | £ 5,631,868 | |
| 12317 | Mode | £ 401,332,556 | |
| 12318 | model | £ 126,900,274 | |
| 12319 | Model 1910 | £ 15,519,029 | |
| 12320 | Model in Black | £ 32,036,184 | |
| 12321 | model1 | £ 298,042,055 | |
| 12322 | Moderate Pharmaceuticals | £ 7,403,273 | |
| 12323 | Modern Chemistry | £ 50,000 | |
| 12324 | Modern Day Filth | £ 39,727,103 | |
| 12325 | modern homes and windows | £ 60,782,477 | |
| 12326 | Modern Medicine | £ 654,587,529 | |
| 12327 | mog | £ 62,817,831 | |
| 12328 | MoguMogu | £ 50,000 | |
| 12329 | Mogwai | £ 2,474,017,302 | |
| 12330 | Mohawk | £ 5,884,779 | |
| 12331 | mohicans | £ 87,704,089 | |
| 12332 | Mojacar | £ 31,080,785 | |
| 12333 | Mojacar Playa | £ 4,415,605 | |
| 12334 | MojoMonies | £ -11,896,511 | |
| 12335 | Mojon Inc | £ 2,533,275 | |
| 12336 | Moldy Bread | £ 3,146,415 | |
| 12337 | Mole | £ 2,572,348 | |
| 12338 | molenstraat | £ 2,013,822 | |
| 12339 | Molko | £ 88,524,189 | |
| 12340 | Molly | £ 58,389,036 | |
| 12341 | Molokozavod | £ 8,147,120 | |
| 12342 | Molotov | £ 4,678,705,578 | |
| 12343 | Moltisanti | £ 88,259,217 | |
| 12344 | Moltke Enterprises | £ 58,439,943 | |
| 12345 | mom | £ 316,315,222 | |
| 12346 | MomCorp | £ 1,768,330 | |
| 12347 | Moment | £ 50,000 | |
| 12348 | Moments | £ 63,735,380 | |
| 12349 | MommaJune | £ 5,871,123 | |
| 12350 | Mommy | £ 7,669,413 | |
| 12351 | MOMOO | £ 147,977 | |
| 12352 | Moms diner | £ 125,413 | |
| 12353 | Mon | £ 8,704,871 | |
| 12354 | Monaco | £ 43,667,263 | |
| 12355 | Monarchic | £ 27,179,904 | |
| 12356 | Monastery | £ 1,678,761 | |
| 12357 | Moncrot | £ 2,803,567 | |
| 12358 | Moncton | £ 577,953,358 | |
| 12359 | Monetary Policy | £ -1,515,538 | |
| 12360 | Money | £ 56,804,752 | |
| 12361 | Money Bags | £ 4,555,558 | |
| 12362 | Money Club | £ 3,724,557 | |
| 12363 | Money Heist | £ 366,365,941 | |
| 12364 | Money Inc. | £ 5,469,873 | |
| 12365 | Money Laundering | £ 261,958,225 | |
| 12366 | Money Lenders | £ 11,476,352 | |
| 12367 | Money Ltd | £ 4,615,437 | |
| 12368 | money mad | £ 3,798,586 | |
| 12369 | Money Maker | £ 5,061,369 | |
| 12370 | Money Mule | £ 893,799 | |
| 12371 | Money Shop | £ 203,493 | |
| 12372 | Money to Blow | £ 225,232,199 | |
| 12373 | Money Train | £ 5,507,812 | |
| 12374 | Moneyball | £ 83,351,921 | |
| 12375 | MoneyInc | £ 30,406,225 | |
| 12376 | MoneyMaker | £ 6,039,073 | |
| 12377 | MoneyMaker Incorporated | £ -196,573 | |
| 12378 | MoneyNoEnough | £ 4,268,780 | |
| 12379 | Moneys-R-Us | £ 329,378 | |
| 12380 | MoneysRus | £ 50,000 | |
| 12381 | Mong | £ 22,748,219 | |
| 12382 | Mongeral World | £ 54,700,169 | |
| 12383 | Mongol Empire | £ 1,372,057 | |
| 12384 | Mongolian | £ 711,219 | |
| 12385 | mongs | £ 43,459,377 | |
| 12386 | Monies | £ 5,807,618 | |
| 12387 | Monitor | £ 38,036,968 | |
| 12388 | monk 1111 | £ 81,826,230 | |
| 12389 | monk 3333 | £ 98,426,009 | |
| 12390 | monk 3566 | £ 79,425,725 | |
| 12391 | monk 4444 | £ 51,407,478 | |
| 12392 | monk 4726 | £ 76,980,743 | |
| 12393 | monk 5555 | £ 80,711,220 | |
| 12394 | monk 7686 | £ 130,082,249 | |
| 12395 | monk 8965 | £ 128,819,700 | |
| 12396 | monk2222 | £ 76,782,380 | |
| 12397 | monkey | £ 111,502 | |
| 12398 | Monkey business inc. | £ 8,421,825 | |
| 12399 | Monkey Filthy | £ 50,000 | |
| 12400 | Monkey God | £ 32,686,454 | |
