Established in 1979, calzavara operates on the domestic and international markets in the telecommunications and energy fields.

For telecommunications, calzavara is a system integrator with traditional and innovative services and products for networks relative to fixed, wireless, cellular and broadcasting, TV, radio, surveillance radar and the broadband market in general.

Furthermore, calzavara offers "turnkey" and innovative services for alternative and renewable energies.  In particular, for the PVs, wind energy and energy back-up and storage sectors.