North Bay Monument Co. has roots in Sonoma County dating back to 1869. In 1901, a craftsman named Massimo Galeazzi came to Sonoma County from Carrara, Italy, to quarry basalt from the local mountains and quarries. Along with Peter Maroni, Natale Forni and Angelo Sodini, Massimo built local establishments, such as:
- Hotel La Rose
- The Stone House on Highway 12
- St. Rose Catholic Church
- Jack London Wolf House
- Andrew Carnegie Library
In 1937, Massimo partnered with Fisher Kinslow, John Costa and E.W.M. Evans to form what is still known as North Bay Monument Co.