| Mrtg | 2 | 2 |
| Mrtnmtth | 1 | 1 |
| Mruby | 2 | 61 |
| Mrxvt | 1 | 2 |
| Mrxvt Project | 1 | 2 |
| Ms Analysis | 1 | 1 |
| Ms Topsites | 1 | 1 |
| Ms-ins | 2 | 2 |
| Ms3d Project | 1 | 1 |
| Mscdex | 1 | 10 |
| Mschaef | 1 | 2 |
| Mschwar | 1 | 1 |
| Msearch | 1 | 1 |
| Msedgeredirect Project | 1 | 1 |
| Msgpack5 Project | 1 | 1 |
| Msh134 | 1 | 3 |
| Msi | 7 | 13 |
| Mskocik | 1 | 1 |
| Mssql-node Project | 1 | 1 |
| Mssql.js Project | 1 | 1 |
| Msvod | 1 | 2 |
| Msweet | 1 | 8 |
| Msxstudios | 1 | 1 |
| Msyk | 1 | 1 |
| Mt Orumcek | 1 | 1 |
| Mt Systems Co., Ltd. | 2 | 2 |
| Mt312 | 2 | 2 |
| Mt4 | 1 | 1 |
| Mtc Project | 1 | 1 |
| Mtcms | 1 | 6 |
| Mtheme-unus Project | 1 | 1 |
| Mtools | 1 | 1 |
| Mtouch Quiz Project | 1 | 7 |
| Mtp-target | 1 | 2 |
| Mtr | 1 | 4 |
| Mtssb.mt-systems | 1 | 1 |
| Mubarakalmehairbi | 1 | 1 |
| Mubu | 2 | 3 |
| Mucommander | 1 | 1 |
| Mufg | 1 | 1 |
| Muforum | 1 | 1 |
| Mulesoft | 6 | 24 |
| Multi Feed Reader Project | 1 | 1 |
| Multi Restaurant Table Reservation System Project | 1 | 7 |
| Multi User Project | 1 | 1 |
| Multi-aterm | 1 | 1 |
| Multi-ini Project | 1 | 2 |
| Multi-router Looking Glass Project | 1 | 1 |
| Multi-tech | 1 | 1 |
| Multi-tech Systems | 1 | 1 |
| Multi-website | 1 | 2 |
| Multicorewareinc | 2 | 3 |
| Multidots | 6 | 6 |
| Multigames Project | 1 | 1 |
| Multilanguage Real Estate Mlm Script Project | 1 | 2 |
| Multilaser | 2 | 2 |
| Multimania | 2 | 5 |
| Multimedia | 1 | 1 |
| Multimediasoft | 5 | 5 |
| Multiplanet | 1 | 1 |
| Multiplayer Games | 1 | 1 |
| Multiplayer-plugin Project | 1 | 1 |
| Multiple Vendors All Trailer Power Line Communications Are Affected. | 1 | 1 |
| Multiple, Non-isc | 1 | 8 |
| Multiplex Movie Theater Booking Script Project | 1 | 1 |
| Multiqueue Project | 1 | 1 |
| Multiqueue2 Project | 1 | 1 |
| Multireligion Responsive Matrimonial Project | 1 | 2 |
| Multishopcms | 1 | 2 |
| Multisoft | 1 | 1 |
| Multitech | 4 | 6 |
| Multitheftauto | 1 | 2 |
| Multivendor Penny Auction Clone Script Project | 1 | 1 |
| Multivendorx | 2 | 3 |
| Multiversx | 1 | 2 |
| Multixtpm | 1 | 213 |
| Mumble | 1 | 10 |
| Mumbojumbo | 1 | 1 |
| Mundi King | 1 | 1 |
| Munic | 1 | 3 |
| Munica | 1 | 1 |
| Munin-monitoring | 1 | 10 |
| Munki Facts Project | 1 | 1 |
| Munkireport Project | 2 | 6 |
| Munky | 1 | 1 |
| Munsoft | 1 | 1 |
| Murat Ersoy | 1 | 1 |
| Muratsoft | 1 | 3 |
| Musanim | 1 | 2 |
| Musawir Ali | 1 | 1 |
| Muscle | 1 | 6 |
| Mushmush | 1 | 1 |
| Mushroom Content Management System Project | 1 | 1 |
| Music City Networks | 1 | 3 |
| Music Daemon | 1 | 2 |
| Musical.ly Inc. | 1 | 1 |
| Musicbox | 1 | 10 |
| Musicboxv2 | 1 | 10 |
| Musicbrainz | 2 | 2 |
| Musicjustnow | 1 | 1 |
