| ID | Name | Type |
|---|---|---|
| #9343 | Martinsoft | Z |
| #9344 | Martyn | - |
| #21015 | Martyn Carroll | + |
| #9345 | Martyn Charles Davis | + |
| #9346 | Martyn Hartley | + |
| #9347 | Martyn J. Brown | + |
| #21848 | Martyn Latimer | + |
| #21485 | Martyn Whitwood | + |
| #23271 | Marukpa | - |
| #9348 | Marulk | ? |
| #9349 | Marvel Comics Group | Z |
| #9350 | Marvel Entertainment Inc | Z |
| #9018 | Marvel Soft | Z |
| #9351 | Marvic Marketing | Z |
| #9352 | Marwin Freutel | ? |
| #9353 | Marx | - |
| #9354 | Mary Borchers | ? |
| #16291 | Mary Sargent | + |
| #9355 | Mary Shelley | + |
| #21188 | Mary Tate | + |