The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 10201 | Man in the Mirror | £ 20,566,211 | |
| 10202 | Man Kind | £ 100,281,734 | |
| 10203 | Man Lab | £ 2,388,802 | |
| 10204 | Man of Steel | £ 306,562,022 | |
| 10205 | Mana | £ 199,521 | |
| 10206 | Manaus | £ 257,899,725 | |
| 10207 | ManBearPig | £ 502,877,277 | |
| 10208 | ManChat | £ 24,921,317 | |
| 10209 | Manchester | £ 202,157,819 | |
| 10210 | Manchester Mayhem | £ 84,056 | |
| 10211 | manchester united | £ 5,711,474 | |
| 10212 | Manchester United XI | £ 5,357,466 | |
| 10213 | Manco Capac | £ 2,037,711,203 | |
| 10214 | Mancunia | £ -32,487 | |
| 10215 | Mancunia 2 | £ 138,386 | |
| 10216 | Mandalay Bay | £ 6,146,133 | |
| 10217 | Mandelbrot Set | £ 317,179,042 | |
| 10218 | mang | £ 2,904,476 | |
| 10219 | manginas | £ 46,000 | |
| 10220 | Mangle Inc | £ 16,870,733 | |
| 10221 | Mango Escapade | £ 62,454,265 | |
| 10222 | Mango incorporated | £ 76,448 | |
| 10223 | mania | £ 311,404,918 | |
| 10224 | Maniac Express | £ 24,619,316 | |
| 10225 | Manic Miner | £ 81,614,358 | |
| 10226 | Manities | £ 55,292,484 | |
| 10227 | Mankind | £ 170,883,979 | |
| 10228 | Manly Living | £ 2,808,857 | |
| 10229 | ManManMan | £ 38,206,350 | |
| 10230 | Mannanin Co | £ 8,845,526 | |
| 10231 | Mans Best Friend | £ 277,632,612 | |
| 10232 | Mans World | £ 103,865,359 | |
| 10233 | Mansell Industries Ltd. | £ 2,299,922,271 | |
| 10234 | Mansfield Bitter | £ 397,755,385 | |
| 10235 | Manta | £ 7,067,125,870 | |
| 10236 | Manta. | £ 21,707,124 | |
| 10237 | mantis | £ 5,463,181 | |
| 10238 | Manu upon avon | £ 1,056,762 | |
| 10239 | manu-de-janeiro | £ 12,962,879 | |
| 10240 | manu-upon-avon | £ 106,781,988 | |
| 10241 | manu-upon-avon2 | £ 7,786,748 | |
| 10242 | manu-upon-tyne | £ 12,073,546 | |
| 10243 | Manual Shift | £ 514,808,382 | |
| 10244 | Many | £ 5,464,758 | |
| 10245 | Many acres | £ 259,145,131 | |
| 10246 | many companies | £ 64,173,944 | |
| 10247 | Many Ends | £ 10,771,456 | |
| 10248 | Many Fossil Fuels | £ 55,702,842 | |
| 10249 | Many houses | £ 250,654,700 | |
| 10250 | Many Monies Corporation | £ 50,000 | |
| 10251 | Many more | £ 62,287,354 | |
| 10252 | Many mushrooms | £ -14,428,318 | |
| 10253 | Many Mysteries | £ 765,679 | |
| 10254 | many numbers | £ 43,995,214 | |
| 10255 | Many Years | £ 380,300 | |
| 10256 | Manytimesusedpubbucket | £ 5,530,466 | |
| 10257 | Maolina | £ 6,447,323 | |
| 10258 | Maose BV | £ 46,741 | |
| 10259 | Maosim | £ 62,212,646 | |
| 10260 | Map Flateners | £ 66,340,384 | |
| 10261 | Maple Leaf | £ 9,272,710 | |
| 10262 | Maple Syrup | £ 53,276,118 | |
| 10263 | Maple Syrup Monsters | £ 5,683,586 | |
| 10264 | MapleGrove | £ 483,977 | |
| 10265 | Mapleton Corp | £ 4,561,154 | |
| 10266 | MapleTree | £ 95,287,088 | |
| 10267 | Mapple | £ 7,653,759 | |
| 10268 | Mar | £ 3,166,311,646 | |
| 10269 | Mara Salvatrucha | £ 440,730,837 | |
| 10270 | Marathon | £ 59,899,042 | |
| 10271 | Marathon Runner | £ 58,033,010 | |
| 10272 | Marauders Inc | £ 4,803,396 | |
| 10273 | Marbles | £ 80,688,238 | |
| 10274 | Marc Enterprises | £ 25,832,788 | |
| 10275 | Marcandmoles5 | £ 4,486,455 | |
| 10276 | March | £ 6,102,999 | |
| 10277 | Marching-Affair | £ 9,685,639,817 | |
| 10278 | Marching-Again | £ 1,473,343,072 | |
| 10279 | Marco Inc | £ 7,330,897 | |
| 10280 | Marco Pierre White | £ 47,148,419 | |
| 10281 | Marco Simoncelli | £ 262,181,133 | |
| 10282 | Marcome Inc | £ -205,648 | |
| 10283 | Marcomm Inc | £ 5,254,390 | |
| 10284 | Mareals Beneficence | £ 5,020,666 | |
| 10285 | Margam | £ 581,332 | |
| 10286 | Margaret Thatcher | £ 63,413,613 | |
| 10287 | Marges | £ 978,012,084 | |
| 10288 | Marian | £ 9,481,676,807 | |
| 10289 | Marianas Trench | £ 362,432,595 | |
| 10290 | Marijuana | £ 139,330,510 | |
| 10291 | Marik Stelele | £ 1,645,091 | |
| 10292 | Marine Drive | £ 513,719,873 | |
| 10293 | Mario | £ 148,719,211 | |
| 10294 | Mario Bros. Plumbing | £ 21,346,748 | |
| 10295 | Marissa | £ 1,378,328,809 | |
| 10296 | Marissa 2 | £ 524,757,169 | |
| 10297 | Marissa 3 | £ 667,967,397 | |
| 10298 | Marissa 4 | £ 312,726,823 | |
| 10299 | Marissa 5 | £ 238,611,098 | |
| 10300 | Marissa 6 | £ 495,989,312 | |
