One of the long-established group leaders in the stone industry, Campolonghi's roots go back to 1962, when D'Angiolo and a partner established Freda S.r.l., the initial fabricating plant of the company. The Campolonghi name was established in 1968, and the company has worked on prominent architectural projects around the world. Over the years, the firm has worked with some of the world's most renowned architects, such as Philip Johnson, Cesar Pelli, I.M. Pei, Kohn Pedersen Fox and others.
Today, the group is broken into different productive units, each specialized in their own sector of the stone industry. The Campolonghi Group has 350 employees on the payroll and 150 more on contract, for a total of 500 workers.