The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 9901 | Mastah Inc. | £ -5,386,656 | |
| 9902 | Master | £ 411,127,543 | |
| 9903 | Master Builders | £ 6,821,399 | |
| 9904 | master molloy2 | £ 3,015,413 | |
| 9905 | Master of Zelda | £ -757,416 | |
| 9906 | Master Sticker Peelers | £ 256,154 | |
| 9907 | Master Swords and Bows | £ 24,666,107 | |
| 9908 | Mastercard | £ 252,652,100 | |
| 9909 | mastermolloy1 | £ 4,589,292 | |
| 9910 | mastermolloy4 | £ 878,532 | |
| 9911 | mastertkd | £ 156,322,341 | |
| 9912 | Masterton | £ 9,742,506 | |
| 9913 | Mata.inc | £ 13,598,445 | |
| 9914 | Matador Cattle Company | £ 5,024,777 | |
| 9915 | matches | £ 795,209,718 | |
| 9916 | Matches plus Petrol | £ 232,978,819 | |
| 9917 | Matchlock | £ 324,682 | |
| 9918 | Materia | £ 19,046,923 | |
| 9919 | Mathewmatics | £ 6,466,483 | |
| 9920 | Matrix | £ 14,797,169 | |
| 9921 | Matrix Reimbursed | £ 134,369,263 | |
| 9922 | Mats | £ 5,740,312,553 | |
| 9923 | Matt Coprporations | £ 25,939,511 | |
| 9924 | Matt Corp 2 | £ 5,507,664 | |
| 9925 | Matt Lange | £ 171,005,052 | |
| 9926 | Matt Schaub | £ 213,184,276 | |
| 9927 | Matthews Kiosks | £ 41,142,201 | |
| 9928 | Mattikins | £ 50,000 | |
| 9929 | Matts money | £ 1,189,880 | |
| 9930 | Matts Place | £ 4,023,510 | |
| 9931 | Matty B Inc 7 | £ -331,481 | |
| 9932 | matty mears corporation | £ 7,886,001 | |
| 9933 | matty mears plc | £ 76,777,292 | |
| 9934 | MattyBinc | £ 69,763,618 | |
| 9935 | MattyBinc2 | £ 96,555,685 | |
| 9936 | MattyBinc3 | £ 38,675,838 | |
| 9937 | MattyBinc8 | £ 62,049,472 | |
| 9938 | Mau5trap | £ 939,845 | |
| 9939 | Mauro | £ 5,504,457 | |
| 9940 | mauro mania | £ 50,000 | |
| 9941 | maurotech | £ 548,809 | |
| 9942 | Mauve en Wit | £ 24,014,076 | |
| 9943 | Maverick Inc | £ 14,453,208 | |
| 9944 | Maverick Trouble Inc | £ 37,638,244 | |
| 9945 | Mavs | £ -158,119 | |
| 9946 | Maw | £ 5,504,812 | |
| 9947 | MaWahhh | £ 90,231,150 | |
| 9948 | MawkiMawki | £ 6,983,736 | |
| 9949 | Max Cash Grab Stuff Inc | £ 4,492,788 | |
| 9950 | Max Power | £ 113,331,826 | |
| 9951 | MaxAttack Ltd | £ 773,584 | |
| 9952 | Maxima | £ 9,994,577 | |
| 9953 | Maximas | £ 50,000 | |
| 9954 | Maximum | £ -2,213,330 | |
| 9955 | Maximum Force | £ 756,904,724 | |
| 9956 | Maximum Profit | £ 5,583,604 | |
| 9957 | MaximumRetaliation | £ 345,639 | |
| 9958 | Maximus Inc | £ -27,673 | |
| 9959 | maximus industries | £ 52,863,673 | |
| 9960 | Maximus Pyrotechnics | £ -22,809,232 | |
| 9961 | Maximus Storage | £ 4,310,218 | |
| 9962 | Maximuscle | £ 3,759,106 | |
| 9963 | Maxxis | £ 2,547,439 | |
| 9964 | May | £ 299,699,321 | |
| 9965 | May Day | £ 10,362,997 | |
| 9966 | May Hay | £ 6,903,268 | |
| 9967 | may help | £ 23,308,617 | |
| 9968 | Maya | £ 788,764,343 | |
| 9969 | Mayans | £ 28,668,150 | |
| 9970 | Maybach Music | £ 12,470,379 | |
| 9971 | Mayhem | £ 116,618,582 | |
| 9972 | Mayoland Inc. | £ -390,754 | |
| 9973 | Maz1 | £ 4,123,280 | |
| 9974 | Maz2 | £ 4,145,139 | |
| 9975 | Maz3 | £ 4,137,031 | |
| 9976 | Maz4 | £ 4,101,386 | |
| 9977 | Maziacs | £ 214,690,206 | |
| 9978 | MazManInc | £ 258,718 | |
| 9979 | mbm | £ 81,202,527 | |
| 9980 | mc3 | £ 62,358,543 | |
| 9981 | Mcboobs Knocking Shops | £ 27,084 | |
| 9982 | mcbuttface | £ 3,955,729 | |
| 9983 | McCann Ind | £ -29,449 | |
| 9984 | McCormick Enterprises | £ 704,217 | |
| 9985 | McDAB | £ 53,108,625 | |
| 9986 | McDonalds | £ 18,885,463 | |
| 9987 | Mcdonalds Corporation | £ 134,518,979 | |
| 9988 | McDonaldsZim | £ 63,176,931 | |
| 9989 | McDumponface | £ 3,660 | |
| 9990 | McFadden | £ -131,571 | |
| 9991 | Mcfc88 | £ -4,784,232 | |
| 9992 | McGarrett | £ 193,129,471 | |
| 9993 | McGeeters | £ 83,681 | |
| 9994 | McGirk Waste Management | £ 2,848,421 | |
| 9995 | MCI Communications | £ 134,374,955 | |
| 9996 | Mckutchen | £ 1,830,803 | |
| 9997 | Mclaren Mercedes | £ 2,778,685 | |
| 9998 | McLovin | £ 2,299,983 | |
| 9999 | mcm | £ 57,999,853 | |
| 10000 | McNasty Burgers | £ 49,150,132 | |
