Graziano Chiesa

Sirti SpA engages in engineering and realization of telecommunication networks and systems. It offers technological solutions for the telecommunication, energy, distribution, multi utilities, road and railway transportation sectors. The firm provides development services such as telecommunication cable networks, cellular radiotelephone systems, broadcasting networks, electric rail-tramway systems, energy transportation and distribution. The company was founded by Piero Pirelli and Vittorio Tedeschi on November 21, 1921 and is headquartered in Milan, Italy.

Retelit SpA operates as a holding company, which provides data services and infrastructure for the telecommunications market. Its services include telecommunications infrastructure, data center (Colocation, Cloud, Cyber Security e APM), data transmission, and managed network. The company was founded on August 31, 1999 and is headquartered in Milan, Italy.