Summit State Bank provides banking services to individuals and businesses in California. The bank offers a range of deposit products, including checking, savings, and money market accounts, as well as certificates of deposit. It also provides various loan products, such as commercial and industrial, construction and development, and residential real estate loans, as well as consumer loans, including home equity and personal loans. In addition, the bank offers online banking, mobile banking, and other services. The company was founded in 1984 and is headquartered in Santa Rosa, California.