| ID | Name | Type |
|---|---|---|
| #19748 | Mandarin Adventures | P |
| #8972 | Mandarin Software | Z |
| #8973 | Mandragora Software | Z |
| #8974 | Mandy Rodrigues | + |
| #8975 | Manel | ? |
| #8976 | Manfred Fillinger | + |
| #8977 | Manfred Nolton | + |
| #22547 | Manfred Schininger | + |
| #8978 | Manfred Steinbach | + |
| #8979 | Manic Miner Technologies | Z |
| #19228 | Manic Software | P |
| #8980 | Maniu | ? |
| #8981 | Manjinder Rai | ? |
| #8982 | Manjinder Singh | ? |
| #16701 | Mannesman-Tally | ? |
| #19480 | Manoel Carvalho | + |
| #8983 | Manoel Silva Rodrigues | ? |
| #21667 | Manoli Fernandez G. | + |
| #8984 | Manolo Lopez Garcia | ? |
| #8985 | Manor Software | Z |