The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 10301 | Mankind | £ 170,883,979 | |
| 10302 | Manly Living | £ 2,808,857 | |
| 10303 | ManManMan | £ 38,206,350 | |
| 10304 | Mannanin Co | £ 8,845,526 | |
| 10305 | Mans Best Friend | £ 279,475,422 | |
| 10306 | Mans World | £ 103,865,359 | |
| 10307 | Mansell Industries Ltd. | £ 2,299,922,271 | |
| 10308 | Mansfield Bitter | £ 397,755,385 | |
| 10309 | Manta | £ 7,067,125,870 | |
| 10310 | Manta. | £ 21,707,124 | |
| 10311 | mantis | £ 5,463,181 | |
| 10312 | Manu upon avon | £ 1,056,762 | |
| 10313 | manu-de-janeiro | £ 12,962,879 | |
| 10314 | manu-upon-avon | £ 106,781,988 | |
| 10315 | manu-upon-avon2 | £ 7,786,748 | |
| 10316 | manu-upon-tyne | £ 12,073,546 | |
| 10317 | Manual Shift | £ 514,808,382 | |
| 10318 | Many | £ 5,464,758 | |
| 10319 | Many acres | £ 259,145,131 | |
| 10320 | many companies | £ 64,173,944 | |
| 10321 | Many Ends | £ 10,771,456 | |
| 10322 | Many Fossil Fuels | £ 55,702,842 | |
| 10323 | Many houses | £ 250,654,700 | |
| 10324 | Many Monies Corporation | £ 50,000 | |
| 10325 | Many more | £ 62,287,354 | |
| 10326 | Many mushrooms | £ -14,428,318 | |
| 10327 | Many Mysteries | £ 765,679 | |
| 10328 | many numbers | £ 43,995,214 | |
| 10329 | Many Years | £ 380,300 | |
| 10330 | Manytimesusedpubbucket | £ 5,530,466 | |
| 10331 | Maolina | £ 6,447,323 | |
| 10332 | Maose BV | £ 46,741 | |
| 10333 | Maosim | £ 62,212,646 | |
| 10334 | Map Flateners | £ 66,340,384 | |
| 10335 | Maple Leaf | £ 9,272,710 | |
| 10336 | Maple Syrup | £ 53,276,118 | |
| 10337 | Maple Syrup Monsters | £ 5,683,586 | |
| 10338 | MapleGrove | £ 483,977 | |
| 10339 | Mapleton Corp | £ 4,561,154 | |
| 10340 | MapleTree | £ 95,287,088 | |
| 10341 | Mapple | £ 7,653,759 | |
| 10342 | Mar | £ 3,166,311,646 | |
| 10343 | Mar MB | £ 59,938,508 | |
| 10344 | Mara Salvatrucha | £ 440,730,837 | |
| 10345 | Marathon | £ 59,899,042 | |
| 10346 | Marathon Runner | £ 58,033,010 | |
| 10347 | Marauders Inc | £ 4,803,396 | |
| 10348 | Marbles | £ 119,721,482 | |
| 10349 | Marc Enterprises | £ 25,832,788 | |
| 10350 | Marcandmoles5 | £ 4,486,455 | |
| 10351 | March | £ 6,102,999 | |
| 10352 | Marching-Affair | £ 9,701,603,338 | |
| 10353 | Marching-Again | £ 1,729,189,416 | |
| 10354 | Marco Inc | £ 7,330,897 | |
| 10355 | Marco Pierre White | £ 45,711,831 | |
| 10356 | Marco Simoncelli | £ 342,361,056 | |
| 10357 | Marcome Inc | £ -205,648 | |
| 10358 | Marcomm Inc | £ 5,254,390 | |
| 10359 | Mareals Beneficence | £ 5,020,666 | |
| 10360 | Margam | £ 581,332 | |
| 10361 | Margaret Thatcher | £ 63,413,613 | |
| 10362 | Marges | £ 978,012,084 | |
| 10363 | Marian | £ 10,313,379,740 | |
| 10364 | Marianas Trench | £ 362,432,595 | |
| 10365 | Marijuana | £ 139,330,510 | |
| 10366 | Marik Stelele | £ 1,645,091 | |
| 10367 | Marine Drive | £ 513,719,873 | |
| 10368 | Mario | £ 148,719,211 | |
| 10369 | Mario Bros. Plumbing | £ 21,346,748 | |
| 10370 | Marissa | £ 1,378,328,809 | |
| 10371 | Marissa 2 | £ 524,757,169 | |
| 10372 | Marissa 3 | £ 667,967,397 | |
| 10373 | Marissa 4 | £ 312,726,823 | |
| 10374 | Marissa 5 | £ 238,611,098 | |
| 10375 | Marissa 6 | £ 495,989,312 | |
| 10376 | Marissa 7 | £ 407,172,119 | |
| 10377 | Marissa 8 | £ 425,196,899 | |
| 10378 | Marissa 9 | £ 548,552,830 | |
| 10379 | Marissa Love | £ 220,710,374 | |
| 10380 | Maritime Fish Factory | £ 2,719,055 | |
| 10381 | Mark Chapman | £ 54,086,382 | |
| 10382 | Mark Co | £ 529,484 | |
| 10383 | Market Spike | £ 1,374,802 | |
| 10384 | MarketLiquidity | £ 10,169,358 | |
| 10385 | Marley | £ 5,014,024 | |
| 10386 | Marlin inc | £ 1,915,058 | |
| 10387 | Marmara | £ 1,010,339,022 | |
| 10388 | Marraqueta | £ 138,405,177 | |
| 10389 | Marriages | £ 225,537,792 | |
| 10390 | Marrissasempire | £ 1,227,037 | |
| 10391 | Marrying The Mafia | £ 532,818 | |
| 10392 | Mars | £ 55,103,707 | |
| 10393 | Mars bars LTD | £ 117,272,299 | |
| 10394 | Mars Colony | £ 593,256 | |
| 10395 | Mars Rover | £ 10,459,384 | |
| 10396 | Mars wont find me | £ 246,116 | |
| 10397 | Marshmallow Machetes Inc | £ 4,163,631 | |
| 10398 | Marshmello | £ 155,437,327 | |
| 10399 | MarshSkye | £ 35,400 | |
| 10400 | Martin Luther King Jnr | £ 902,082,927 | |
