- Airbus Defence and Space
- AR-Electronique
- Armadeus Systems
- Bodet
- Cristal innov
- EXAIL (MUQUANS)
- FEMTO ENGINEERING
- FreC’N’Sys
- Gorgy Time
- HITIM GROUP (GEMMA) Quartz et Crystal
- IDIL
- III-V LAB
- KEYSIGHT Technologies
- MY CRYO FIRM
- NAVAL GROUP
- ORANGE
- OscilloQuartz
- Rakon
- SCPTime
- SENSeOR Conception de capteurs
- SigmaWorks SigmaWorks
- SILENTSYS
- Sodern
- Spectracom
- Spherea Test & Services
- Syrlinks
- THALES Alenia Space
- THALES AVS Thales Avionic Systems France
- Thales Research and Technology
- Timelink Microsystems
- Tronics
