| medi-a GmbH | North Rhine-Westphalia |
| Medi.As GmbH | Saarland |
| Media Broadcast Satellite GmbH | |
| Media Connect GmbH | Hesse |
| Media Connect Multimedia | Bavaria |
| Media Deluxe | North Rhine-Westphalia |
| media desktop GbR | Brandenburg |
| Media Lab Bayern | Bavaria |
| Media Markt | Bavaria |
| Media Nova GmbH | North Rhine-Westphalia |
| Media Soft Software Technology GmbH | Saarland |
| Media Ventures GmbH | North Rhine-Westphalia |
| Media-Agency 4Ad GmbH | Berlin |
| Media-Concept Bürobedarf GmbH | Bavaria |
| media-e-motion | Baden-Württemberg |
| Media-Service Consulting & Solutions GmbH | Lower Saxony |
| Media-X-Vision | North Rhine-Westphalia |
| mediaBEAM GmbH | North Rhine-Westphalia |
| Mediabit GmbH | Bavaria |
| Mediacharge GmbH | |
| mediaclou GmbH | North Rhine-Westphalia |
| Mediadesign Hochschule für Design und Informatik GmbH | Berlin |
| Mediadesign Vogel | |
| MEDIAdorado Ltd | North Rhine-Westphalia |
| MediaEvent Services GmbH & Co. KG | |
| mediagear GmbH | Bavaria |
| Mediainterface Dresden GmbH | Saxony |
| mediaire GmbH | |
| Mediakraft Networks GmbH | North Rhine-Westphalia |
| Medial Multimedia Services | Bavaria |
| Mediaman GmbH | Rhineland-Palatinate |
| Mediamatics | Berlin |
| Mediamed Systec GmbH | Baden-Württemberg |
| MediaMill | Rhineland-Palatinate |
| Median Software + Konzepte GmbH | Hesse |
| medianet berlinbrandenburg e.V. | |
| medianetwork | Hamburg |
| MediaQuartier | |
| mediasolution Marketing & Kommunikation OHG | Baden-Württemberg |
| Mediata Communications GmbH | North Rhine-Westphalia |
| MediaTel | |
| Mediatouch GmbH | Lower Saxony |
| Mediatron | Bavaria |
| Mediatrust GmbH & Co. KG | Schleswig-Holstein |
| MediaUp Crossmedia | North Rhine-Westphalia |
| mediawerk Monika Gause, Klaus Köhnert | Hamburg |
| MediaWorkbench | Hesse |
| Medical Innovations Incubator GmbH | |
| Medical Valley EMN e.V. | |
| Medicom Dreieich GmbH | Hesse |