Bureau veritas provides experts and consultants to civil and military airports and civil aviation authorities in the field of aerodrome certification, airport security, ATC/ATM Support, safety, training

Egis Avia provides consulting and engineering services, aeronautical information systems and turn-key operations, assistance and products in Air Traffic Management, Airport and Air Operations.

INEO Engineering & Systems is a communication & information system integrator for ATC and aeronautical systems : navaids, area control centre, telecommunication networks, control towers, power stations and airfield lighting.

Steria offers a portfolio of airport IT services, operations management, flight information systems, security solutions and RFID-Based vehicle access management.