Cyrille Damany

21Net Ltd. provides broadband, multimedia and connectivity solutions to railway companies. It offers Internet on-board, such as satellite and terrestrial, and terrestrial only Internet and broadband services for train operators and its customers and multimedia entertainment, including video on demand and live TV to passenger laptops, tablets, and overhead or personal screens. The company was founded by Jean-Francois de Lantsheere and Henry Hyde-Thomson in 2001 and is headquartered in Ledbury, the United Kingdom.

Mentum SA provides software and services solutions to wireless operators, equipment vendors and consultants. Its software solutions, including Mentum Planet, Mentum Ellipse, Mentum Fusion, Mentum CellPlanner, Mentum LinkPlanner along with tailored Mentum Geodata, enable network operators and engineers to maximize their design potential. The company was founded in 2000 and is headquartered in Velizy, France.

Acterna France SAS functions as an investment holding company. The company was founded on October 14, 2014 and is headquartered in Saint Etienne, France.

Antennessa designs and manufactures customized antennas and electromagnetic field measurement systems. The firm provides custom antennas solutions for the telecom, automotive or military industries. The company is headquartered in Plouzané, France.