| Nombre | UIT-R | UIT-T | UIT-D | Categorias |
| Federal Ministry for Digital and Transport, BERLIN | | | | ADMIN |
| Federal Network Agency for Electricity, Gas, Telecommunications, Post and Railway, MAINZ | | | | ADMIN RELATED / REGULATOR |
| 1NCE GmbH, Cologne | | ASSOCIATE SG2 | | ROA |
| AVM Audiovisuelles Marketing und Computersysteme GmbH, BERLIN | | ASSOCIATE SG15 | | ROA / MANUFACTURER |
| Bayernwerk AG, REGENSBURG | | X | | OTHER ENTITY |
| Cerence GmbH, Aachen | | ASSOCIATE SG12 | | OTHER ENTITY |
| DENIC eG, FRANKFURT AM MAIN | | ASSOCIATE SG2 | | OTHER ENTITY |
| Deutsche Telekom AG, Bonn | X | X | | ROA |
| Deutsche Welle, BONN | | X | | ROA |
| EMnify GmbH, BERLIN | | ASSOCIATE SG2 | | ROA / OPERATOR |
| Focus Infocom Ges. F. Informatik u. Telekomm. mbH, Darmstadt | | ASSOCIATE SG12 | | SIO |
| Fraunhofer HHI & IIS, BERLIN | | X | | SIO |
| HEAD Acoustics GmbH, HERZOGENRATH | | ASSOCIATE SG12 | | SIO |
| Heraeus Quarzglas GmbH & Co. KG, HANAU | | ASSOCIATE SG15 | | SIO |
| Huawei Technologies Düsseldorf GmbH, MUNICH | | X | | SIO |
| Keysight Technologies Deutschland GmbH, BOEBLINGEN | | ASSOCIATE SG15 | | SIO |
| LS telcom AG, LICHTENAU | X | | X | SIO |
| Meinberg Funkuhren GmbH & Co.KG, BAD PYRMONT | | ASSOCIATE SG15 | | SIO / MANUFACTURER |
| Narda Safety Test Solutions GmbH, PFULLINGEN | ASSOCIATE SG1 | ASSOCIATE SG5 | | OTHER ENTITY / MANUFACTURER |
| Norddeutscher Rundfunk (NDR), HAMBURG | X | | | ROA |
| Opticom GmbH, ERLANGEN | | ASSOCIATE SG12 | | SIO |
| Power Plus Communications AG, MANNHEIM | | ASSOCIATE SG15 | | SIO / MANUFACTURER |
| Rivada Space Networks GmbH, München | X | | | ROA / OPERATOR |
| Robert Bosch GmbH, Stuttgart | X | X | | SIO |
| Rohde & Schwarz GmbH & Co. KG, MÜNCHEN | X | X | X | SIO |
| Sennheiser Electronic GmbH & Co. KG, WEDEMARK | X | | | SIO |
| SkyFive AG, Taufkirchen | | ASSOCIATE SG2 | | SIO |
| Telefónica Germany GmbH & Co. OHG, MÜNCHEN | X | | | ROA |
| Vodafone GmbH, DÜSSELDORF | | X | | ROA |
| VOLKSWAGEN AG, Wolfsburg | | X | | OTHER ENTITY |
| Zweites Deutsches Fernsehen, MAINZ | X | | | ROA |
