| Meatable | |
| Meatless | |
| Meceda v.o.f. | |
| Mechatronica Magazine | Gelderland |
| Medace B.V. | |
| Medal B.V. | |
| MedEye | North Brabant |
| Media Distillery International B.V. | |
| Media Homeservice | South Holland |
| Media.Monks | North Holland |
| MediaBrix | |
| MediaGeni | North Holland |
| Mediaservice Maastricht | Limburg |
| Medify B.V. | |
| Medimatics | Limburg |
| Medion Monile | Limburg |
| Medis Medical Imaging Systems B.V. | |
| Medline International B.V. | |
| MedSciences Capital Management B.V. | |
| Meershap | North Holland |
| Meesterlijk | North Holland |
| Meetingselect | North Holland |
| Mega Computer Services | South Holland |
| MEGA1 Computers | South Holland |
| Megasnel.nl | Flevoland |
| Megawatt | |
| MELON | South Holland |
| Memento | |
| Memocom | South Holland |
| MendriX | Utrecht |
| Mensys | North Holland |
| Mensys B.V. | North Holland |
| Mercash | North Holland |
| Meridia Land B.V. | North Holland |
| Merus | |
| Merweb | |
| Mesa Consulting B.V. | South Holland |
| Meskers Web | |
| Mesoica B.V. | |
| Mesoline | South Holland |
| Message to the Moon | North Holland |
| MessageBird | North Holland |
| MessingMedia | North Brabant |
| Metabolic | |
| Metaclass | Groningen |
| MetaFactory | |
| Metamandrill.com | |
| Metamaze B.V. | |
| MetaMicro Automatisering B.V. | Groningen |
| Metaregistrar B.V. | South Holland |