Jim is principal of Trinity Management Services, part of a family-run real estate enterprise started by his late father, Angelo Sangiacomo. He serves on the Board of Central Market Community Benefit Corporation, the University of San Francisco, and Holy Name Day Home. Jim is president of the Board of Museo Italo Americano, and a Knight with the Order of Malta. Longtime philanthropists in San Francisco, Jim and his wife Gerry Sangiacomo help oversee gifts from the Yvonne and Angelo Sangiacomo Foundation. They have four grown children. A native San Franciscan, Jim attended Notre Dame des Victories Elementary School and St. Ignatius College Preparatory. He is a graduate of Gonzaga University.