The following list shows all the companies that are in the game.
| Companies List | |||
| Pos. | Company Name | Awards | Total Worth |
| 10601 | Main Force Patrol | £ 32,257,237 | |
| 10602 | Maison and Co | £ 2,656,528 | |
| 10603 | Major Suite | £ 17,697 | |
| 10604 | Makaveli | £ 59,162,571 | |
| 10605 | Makaveli II | £ 44,201,619 | |
| 10606 | Make America Great Again | £ 5,508,261 | |
| 10607 | Make Another Move | £ 225,614,005 | |
| 10608 | Make Gotham Great | £ 134,979,354 | |
| 10609 | make money | £ 4,810,592 | |
| 10610 | Make Netro Great | £ 3,983,342 | |
| 10611 | make this yet | £ 48,850,871 | |
| 10612 | makeofthis | £ 134,245,142 | |
| 10613 | maker | £ 6,849,833 | |
| 10614 | Maker Inc. | £ 2,239,625 | |
| 10615 | Makes Me Feel Fine | £ 64,773,514 | |
| 10616 | Making America Great | £ 164,451,564 | |
| 10617 | Making Pennies | £ 92,844,685 | |
| 10618 | Mako | £ 7,379,065 | |
| 10619 | Maks a Muckle | £ 938,220,068 | |
| 10620 | Malak.Co | £ -47,512 | |
| 10621 | Malaria | £ 1,959,297 | |
| 10622 | Malawi | £ 178,768,230 | |
| 10623 | Malaysia | £ 59,026,830 | |
| 10624 | Malaysia Jet Lost | £ 965,177 | |
| 10625 | MalCo | £ 16,148,870 | |
| 10626 | Malcontent | £ 110,148,082 | |
| 10627 | malformed creature | £ 244,911,007 | |
| 10628 | Malice | £ 980,085,156 | |
| 10629 | Malicious Intent | £ 55,421,858 | |
| 10630 | Malik Inc. | £ 43,598 | |
| 10631 | Malkowitz Industries | £ 303,579,424 | |
| 10632 | Mall | £ 33,937,859 | |
| 10633 | Mallard | £ 47,485,699 | |
| 10634 | Malt Liquor Hulk | £ 142,837,826 | |
| 10635 | Malta | £ 5,500,838 | |
| 10636 | Maltesers | £ 54,432,517 | |
| 10637 | Maluku Inc. | £ 32,601,576 | |
| 10638 | MAMA | £ 10,429,149 | |
| 10639 | Mama Said Knock You Out | £ 206,270,452 | |
| 10640 | mamamiah | £ 7,580,475 | |
| 10641 | mamamiahah | £ 73,270,710 | |
| 10642 | Mambeast Pte Ltd | £ -17,776,530 | |
| 10643 | mami | £ 10,204,605 | |
| 10644 | Mammaries | £ 443,603,860 | |
| 10645 | Mammi | £ 42,251,220 | |
| 10646 | Mammiiah | £ 6,959,891 | |
| 10647 | Mammon | £ 5,509,324 | |
| 10648 | mammoth proportions | £ 503,376,369 | |
| 10649 | mams secret milk | £ 5,504,304 | |
| 10650 | Man | £ 15,615,588 | |
| 10651 | Man 53 | £ 28,656,765 | |
| 10652 | Man Chu | £ 58,613 | |
| 10653 | Man Flu | £ 5,664,188 | |
| 10654 | Man in the Mirror | £ 20,566,211 | |
| 10655 | Man Kind | £ 100,281,734 | |
| 10656 | Man Lab | £ 2,388,802 | |
| 10657 | Man of Steel | £ 306,562,022 | |
| 10658 | Mana | £ 199,521 | |
| 10659 | managed | £ 183,840,634 | |
| 10660 | Manaus | £ 257,899,725 | |
| 10661 | ManBearPig | £ 502,877,277 | |
| 10662 | ManChat | £ 24,921,317 | |
| 10663 | Manchester | £ 300,684,849 | |
| 10664 | Manchester Mayhem | £ 84,056 | |
| 10665 | manchester united | £ 5,711,474 | |
| 10666 | Manchester United F.C. | £ 340,499,255 | |
| 10667 | Manchester United FC | £ 471,867,757 | |
| 10668 | Manchester United XI | £ 5,357,466 | |
| 10669 | Manco Capac | £ 2,037,711,203 | |
| 10670 | Mancunia | £ -32,487 | |
| 10671 | Mancunia 2 | £ 138,386 | |
| 10672 | Mandalay Bay | £ 6,146,133 | |
| 10673 | Mandelbrot Set | £ 317,179,042 | |
| 10674 | mang | £ 2,904,476 | |
| 10675 | manginas | £ 46,000 | |
| 10676 | Mangle Inc | £ 16,870,733 | |
| 10677 | Mango Escapade | £ 115,346,715 | |
| 10678 | Mango incorporated | £ 76,448 | |
| 10679 | Manhattan Project | £ 81,585,802 | |
| 10680 | mania | £ 311,404,918 | |
| 10681 | Maniac Express | £ 24,619,316 | |
| 10682 | Manic Miner | £ 81,614,358 | |
| 10683 | Manities | £ 56,668,913 | |
| 10684 | Mankind | £ 170,883,979 | |
| 10685 | Manly Living | £ 2,808,857 | |
| 10686 | ManManMan | £ 38,206,350 | |
| 10687 | Mannanin Co | £ 8,845,526 | |
| 10688 | Mans Best Friend | £ 279,475,422 | |
| 10689 | Mans World | £ 103,865,359 | |
| 10690 | Mansell Industries Ltd. | £ 2,299,922,271 | |
| 10691 | Mansfield Bitter | £ 397,755,385 | |
| 10692 | Manta | £ 7,067,125,870 | |
| 10693 | Manta. | £ 21,707,124 | |
| 10694 | mantis | £ 5,463,181 | |
| 10695 | Manu upon avon | £ 1,056,762 | |
| 10696 | manu-de-janeiro | £ 12,962,879 | |
| 10697 | manu-upon-avon | £ 106,781,988 | |
| 10698 | manu-upon-avon2 | £ 7,786,748 | |
| 10699 | manu-upon-tyne | £ 12,073,546 | |
| 10700 | Manual Shift | £ 514,808,382 | |
