Siepel designs, manufactures, and installs Faraday cages, anechoic chambers, reverberation chambers, electromagnetic absorbers, etc. for the fields of antenna measurement and ElectroMagnetic Compatibility (EMC). These high-tech products based on proven industrial solutions are customised and completed to deliver turnkey systems or can be supplied as off-the-shelves products. They meet the requirements of leading-edge fields such as defence, space, telecom, automotive, etc. for the public and private sectors. Leader in France, Siepel is also very active worldwide.
We also develop and manufacture security devices for critical infrastructures and the protection of information exchanges in mobility: 
- Secure meeting rooms (electromagnetic/acoustic) 
- Secure box, secure mobile enclosure (electromagnetic/acoustic)
 - Faradised pouches 
- Electronic Security Operations and Tempest zoning measurements
Founded in 1986 and based in La Trinité sur Mer from the outset, Siepel has been a secondary establishment of Cegelec Défense Toulouse, Vinci Energies Group, since September 2021. This takeover complements the group's existing range of high-performance systems for the cybersecurity of premises and networks. For Siepel, which keeps its historical activities, this integration brings a new dynamic as well as a complementary range and new business opportunities by relying on other operational units such as Cegelec Defence Mechatronic Solutions for positioners, Cegelec Defence Infrastructures & Réseaux for hardened infrastructures ....
Siepel has about 50 employees in R&D, design office, sales, manufacturing, procurement, installations.
Siepel's values are fully in line with those of the group: attention, support, safety, relational ethics, and many synergies are obvious: high added-value know-how, innovativeness, commitment to performance, respect for deadlines, networking to provide our clients with sustainable competitiveness.

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