The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 12301 | Mapleton Corp | £ 4,561,154 | |
| 12302 | MapleTree | £ 95,287,088 | |
| 12303 | Mapple | £ 7,653,759 | |
| 12304 | Maps | £ 5,503,263 | |
| 12305 | Mar MB | £ 59,938,508 | |
| 12306 | Mara Salvatrucha | £ 440,730,837 | |
| 12307 | Marathon | £ 59,899,042 | |
| 12308 | Marathon Runner | £ 58,033,010 | |
| 12309 | Marauders Inc | £ 4,803,396 | |
| 12310 | Marbles | £ 336,923,960 | |
| 12311 | Marc Enterprises | £ 25,832,788 | |
| 12312 | Marcandmoles5 | £ 4,486,455 | |
| 12313 | March | £ 6,102,999 | |
| 12314 | Marching-Affair | £ 9,711,202,901 | |
| 12315 | Marching-Again | £ 1,729,189,416 | |
| 12316 | Marco Inc | £ 12,220,734 | |
| 12317 | Marco Marketing | £ 350,613,978 | |
| 12318 | Marco Simoncelli | £ 989,348,725 | |
| 12319 | Marcome Inc | £ -205,648 | |
| 12320 | Marcomm Inc | £ 5,254,390 | |
| 12321 | Marcus corp | £ 2,161,927 | |
| 12322 | Mare Nubium | £ 98,027,254 | |
| 12323 | Mareals Beneficence | £ 10,471,098 | |
| 12324 | Margam | £ 581,332 | |
| 12325 | Margaret Thatcher | £ 63,413,613 | |
| 12326 | Marges | £ 978,012,084 | |
| 12327 | Marian | £ 10,841,138,789 | |
| 12328 | Mariana Trench | £ 75,199,317 | |
| 12329 | Marianas Trench | £ 365,086,225 | |
| 12330 | Marijuana | £ 139,330,510 | |
| 12331 | Marijuana Laws | £ 434,815,990 | |
| 12332 | Marik Stelele | £ 1,645,091 | |
| 12333 | Marilyn Monroe | £ 3,870,124 | |
| 12334 | Marine Drive | £ 598,330,825 | |
| 12335 | Mario | £ 148,719,211 | |
| 12336 | Mario Bros. Plumbing | £ 21,346,748 | |
| 12337 | Marion Morrison | £ 127,909,303 | |
| 12338 | Marissa | £ 1,378,328,809 | |
| 12339 | Marissa 2 | £ 524,757,169 | |
| 12340 | Marissa 3 | £ 667,967,397 | |
| 12341 | Marissa 4 | £ 312,726,823 | |
| 12342 | Marissa 5 | £ 238,611,098 | |
| 12343 | Marissa 6 | £ 495,989,312 | |
| 12344 | Marissa 7 | £ 407,172,119 | |
| 12345 | Marissa 8 | £ 425,196,899 | |
| 12346 | Marissa 9 | £ 548,552,830 | |
| 12347 | Marissa Love | £ 220,710,374 | |
| 12348 | Maritime Fish Factory | £ 2,719,055 | |
| 12349 | Mark Chapman | £ 54,086,382 | |
| 12350 | Mark Co | £ 529,484 | |
| 12351 | Market failure | £ 109,883,802 | |
| 12352 | Market Spike | £ 1,374,802 | |
| 12353 | MarketLiquidity | £ 10,169,358 | |
| 12354 | marketstalls | £ 11,448,879 | |
| 12355 | Marks and Spencer | £ 694,674,163 | |
| 12356 | Marley | £ 5,014,024 | |
| 12357 | Marlin inc | £ 1,915,058 | |
| 12358 | Marmalade | £ 566,608,741 | |
| 12359 | Marmara | £ 1,010,339,022 | |
| 12360 | Marraqueta | £ 138,405,177 | |
| 12361 | Marriages | £ 225,537,792 | |
| 12362 | Marrissasempire | £ 1,227,037 | |
| 12363 | Marrows | £ 1,890,267 | |
| 12364 | Marrying The Mafia | £ 532,818 | |
| 12365 | Mars | £ 55,103,707 | |
| 12366 | Mars bars LTD | £ 117,272,299 | |
| 12367 | Mars Colony | £ 773,535 | |
| 12368 | Mars Rover | £ 10,459,384 | |
| 12369 | Mars wont find me | £ 246,116 | |
| 12370 | Marshmallow Inc. | £ 1,700,999 | |
| 12371 | Marshmallow Machetes Inc | £ 4,163,631 | |
| 12372 | Marshmello | £ 155,437,327 | |
| 12373 | marshside | £ 9,867 | |
| 12374 | MarshSkye | £ 35,400 | |
| 12375 | martial world | £ 5,460,382 | |
| 12376 | Martin Luther King Jnr | £ 902,082,927 | |
| 12377 | martini | £ 266,861,163 | |
| 12378 | Marton Institute | £ 83,507,879 | |
| 12379 | Martrel | £ -236,085 | |
| 12380 | Martydom | £ 42,943,748 | |
| 12381 | Martyr Inc | £ 8,895,123 | |
| 12382 | Marvel | £ 25,096,289 | |
| 12383 | marvo | £ 50,000 | |
| 12384 | Marxism Pte Ltd | £ 32,260,072 | |
| 12385 | Mary | £ 46,301,903 | |
| 12386 | mary celeste | £ 47,276,134 | |
| 12387 | Maryland Inc | £ 1,946,529 | |
| 12388 | MaSaMuNe | £ 434,418,271 | |
| 12389 | Mascots | £ 2,709,237 | |
| 12390 | mashsmashanddaash | £ 178,398 | |
| 12391 | Mask | £ 277,025,659 | |
| 12392 | Mass | £ 612,498,813 | |
| 12393 | Mass Destructi0n | £ -2,791,141 | |
| 12394 | Mass Destruction | £ 208,613,868 | |
| 12395 | Mass Distraction | £ 740,836,641 | |
| 12396 | Mass Extinctions | £ 60,895,491 | |
| 12397 | MaSs HiLiGhTeR | £ 55,491,788 | |
| 12398 | Mass Satisfaction | £ 108,172,069 | |
| 12399 | Massacre | £ 7,955,799 | |
| 12400 | Massage Rev Win | £ 1,080,472,344 | |
