- British Telecommunications (UK)
- Telecom Italia (Italy)
- Centre Tecnologic de Telecomunicacions de Catalunya (CTTC) (Spain)
- Telefonica Investigacion y Desarrollo (Spain)
- University of Bristol (UK)
- Universitat Politecnica de Catalunya (UPC) (Spain)
- Universitat Politecnica de Cartagena (UPCT) (Spain)
- Consorzio Nazionale Interuniversitario Per Le Telecomunicazioni (CNIT) (Italy)
- Naudit High Performance Computing and Networking (Spain)
- Openlightcomm (UK)
- Lexden Technologies (UK)
- Zeetta Networks (UK)
- Fraunhofer HHI (Germany)
- Technische Universiteit Eindhoven (TU/e) (Netherlands)
- Infinera (Portugal)
- Ericsson Telecomunicazioni (Italy)
- Adva Optical Networking (Germany)
- Nokia Bell Labs France (France)
- Old Dog Consulting (UK)
- Qognify (Germany)
- Nokia Bell Labs Italia (Italy)
- Politecnico di Milano (Italy)
