The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 12301 | Manu upon avon | £ 1,056,762 | |
| 12302 | manu-de-janeiro | £ 12,962,879 | |
| 12303 | manu-upon-avon | £ 106,781,988 | |
| 12304 | manu-upon-avon2 | £ 7,786,748 | |
| 12305 | manu-upon-tyne | £ 12,073,546 | |
| 12306 | Manual Shift | £ 514,808,382 | |
| 12307 | Manwe Sulimo | £ 1,211,657,968 | |
| 12308 | Many | £ 5,464,758 | |
| 12309 | Many acres | £ 521,974,837 | |
| 12310 | many burner comps | £ 420,248,025 | |
| 12311 | many companies | £ 64,173,944 | |
| 12312 | Many Ends | £ 10,771,456 | |
| 12313 | Many Faces | £ 256,555,457 | |
| 12314 | Many Fossil Fuels | £ 55,702,842 | |
| 12315 | Many houses | £ 357,182,784 | |
| 12316 | Many Missiles | £ 253,747,721 | |
| 12317 | Many Monies Corporation | £ 50,000 | |
| 12318 | Many more | £ 62,287,354 | |
| 12319 | Many mushrooms | £ -14,428,318 | |
| 12320 | Many Mysteries | £ 765,679 | |
| 12321 | Many Names | £ 126,369,379 | |
| 12322 | many numbers | £ 43,995,214 | |
| 12323 | Many Talents | £ 5,504,706 | |
| 12324 | Many Women | £ 4,358,376 | |
| 12325 | Many Years | £ 380,300 | |
| 12326 | Manytimesusedpubbucket | £ 5,530,466 | |
| 12327 | Mao Tse-Tung | £ 2,618,727,429 | |
| 12328 | Mao Tsu Tsung | £ -1,713,345 | |
| 12329 | Maolina | £ 6,447,323 | |
| 12330 | Maose BV | £ 46,741 | |
| 12331 | Maosim | £ 62,212,646 | |
| 12332 | Map Flateners | £ 66,340,384 | |
| 12333 | Maple Leaf | £ 9,272,710 | |
| 12334 | Maple Syrup | £ 53,276,118 | |
| 12335 | Maple Syrup Monsters | £ 5,683,586 | |
| 12336 | MapleGrove | £ 483,977 | |
| 12337 | Mapleton Corp | £ 4,561,154 | |
| 12338 | MapleTree | £ 95,287,088 | |
| 12339 | Mapple | £ 7,653,759 | |
| 12340 | Maps | £ 5,503,263 | |
| 12341 | Mar MB | £ 59,938,508 | |
| 12342 | Mara Salvatrucha | £ 440,730,837 | |
| 12343 | Marathon | £ 59,899,042 | |
| 12344 | Marathon Runner | £ 58,033,010 | |
| 12345 | Marauders Inc | £ 4,803,396 | |
| 12346 | Marbles | £ 336,923,960 | |
| 12347 | Marc Enterprises | £ 25,832,788 | |
| 12348 | Marcandmoles5 | £ 4,486,455 | |
| 12349 | March | £ 6,102,999 | |
| 12350 | Marching-Affair | £ 9,711,202,901 | |
| 12351 | Marching-Again | £ 1,729,189,416 | |
| 12352 | Marco Inc | £ 12,220,734 | |
| 12353 | Marco Marketing | £ 350,613,978 | |
| 12354 | Marco Simoncelli | £ 981,442,769 | |
| 12355 | Marcome Inc | £ -205,648 | |
| 12356 | Marcomm Inc | £ 5,254,390 | |
| 12357 | Marcus corp | £ 4,311,184 | |
| 12358 | Mare Nubium | £ 88,308,765 | |
| 12359 | Mareals Beneficence | £ 10,471,098 | |
| 12360 | Margam | £ 581,332 | |
| 12361 | Margaret Thatcher | £ 63,413,613 | |
| 12362 | Marges | £ 978,012,084 | |
| 12363 | Marian | £ 10,841,138,789 | |
| 12364 | Mariana Trench | £ 75,983,255 | |
| 12365 | Marianas Trench | £ 167,306,131 | |
| 12366 | Marijuana | £ 139,330,510 | |
| 12367 | Marijuana Laws | £ 433,105,208 | |
| 12368 | Marik Stelele | £ 1,645,091 | |
| 12369 | Marilyn Monroe | £ 14,051,160 | |
| 12370 | Marine Drive | £ 595,150,695 | |
| 12371 | Mario | £ 148,719,211 | |
| 12372 | Mario Bros. Plumbing | £ 21,346,748 | |
| 12373 | Marion Morrison | £ 127,909,303 | |
| 12374 | Marissa | £ 1,378,328,809 | |
| 12375 | Marissa 2 | £ 524,757,169 | |
| 12376 | Marissa 3 | £ 667,967,397 | |
| 12377 | Marissa 4 | £ 312,726,823 | |
| 12378 | Marissa 5 | £ 238,611,098 | |
| 12379 | Marissa 6 | £ 495,989,312 | |
| 12380 | Marissa 7 | £ 407,172,119 | |
| 12381 | Marissa 8 | £ 425,196,899 | |
| 12382 | Marissa 9 | £ 548,552,830 | |
| 12383 | Marissa Love | £ 220,710,374 | |
| 12384 | Maritime Fish Factory | £ 2,719,055 | |
| 12385 | Mark Chapman | £ 54,086,382 | |
| 12386 | Mark Co | £ 529,484 | |
| 12387 | Market failure | £ 112,316,461 | |
| 12388 | Market Spike | £ 1,374,802 | |
| 12389 | MarketLiquidity | £ 10,169,358 | |
| 12390 | marketstalls | £ 9,598,506 | |
| 12391 | Marks and Spencer | £ 763,981,607 | |
| 12392 | Marley | £ 5,014,024 | |
| 12393 | Marlin inc | £ 1,915,058 | |
| 12394 | Marmalade | £ 620,434,088 | |
| 12395 | Marmara | £ 1,010,339,022 | |
| 12396 | Marraqueta | £ 138,405,177 | |
| 12397 | Marriages | £ 225,537,792 | |
| 12398 | Marrissasempire | £ 1,227,037 | |
| 12399 | Marrows | £ 1,890,267 | |
| 12400 | Marrying The Mafia | £ 532,818 | |
