Valter Mainetti (Rome, 28 October 1947) is an Italian entrepreneur, publisher and business manager, major shareholder of Sorgente Group, president of Società Italiana per Condotte d'Acqua and of Musa Comunicazione.
In the mid-seventies he began working in the family businesses, in activity since the beginning of the 1900s in Italy and the United States, operating within the industry of iron construction and real estate.
Even his paternal family's company had been involved, since 1910,[2] in the realization of works in iron, and then following World War II began building mechanical and industrial plants, such as the Sincrotrone in Frascati, the Alfa Romeo in Arese, the Steelworks in Terni and Taranto.
The purchase of the Fine Arts Building in Los Angeles dates back to 2012, while the Clock Tower of Santa Monica to 2013.
In 2014 a building was acquired in Lungotevere Aventino 4, 5, 6 in Rome, where now locates the headquarters of the Fondazione Sorgente Group.