Founded by Ken Lafranchi in 1992, this Santa Rosa firm handles architecture, construction management and development for Sonoma County commercial projects, from wineries to revitalized urban properties.

A North Bay accounting firm since 1932, Linkenheimer partners with privately held and family-owned businesses on audit, tax and long-range planning, and is a longtime North Bay "Best Place to Work."

Building relationships since 1935, Petaluma-based Midstate is a North Bay general contractor behind housing, schools, wineries and public works, including SRJC Petaluma's Welcome and Connect Center.