Astaldi S.p. A. designs, develops, and operates public infrastructure and civil engineering works in Italy and internationally. It undertakes transport infrastructure projects, including roads, bridges/viducts, railways, undergrounds, subways, stations, motorways, and tunnels; water and energy plants, such as hydroelectric plants, dams, aqueducts, and power stations.

It is also involved in the civil and industrial buildings comprising schools, hospitals, underground rail stations, car parks, and exhibition spaces; and plant design and engineering, as well as offers operation and maintenance services. The company was founded in 1929 and is headquartered in Rome, Italy. Astaldi S.p.

A. operates as a subsidiary of Webuild S.p.