Columbia Banking System, Inc. operates as the bank holding company for Columbia State Bank that provides a range of banking services to small and medium-sized businesses, professionals, and individuals in Washington, Oregon, and Idaho. It offers personal banking products and services, including noninterest and interest-bearing checking, saving, money market, and certificate of deposit accounts; home equity loans and lines of credit, home mortgages for purchases and refinances, personal loans, and other consumer loans; debit and credit cards; and online and mobile banking services. The company also provides business banking products and services, such as checking, savings, interest-bearing money market, and certificate of deposit accounts; accounts receivable and inventory financing, small business administration financing, commercial real estate loan products for construction and development or permanent financing; and agricultural lending, municipal lending, merchant card, remote deposit capture, small business, and treasury management services. In addition, it offers wealth management services in the areas of private banking, professional banking, financial services, and trust and estate services to individuals, families, and professional businesses. Further, the company provides fiduciary, agency, trust, and related services, as well as life insurance products. As of December 31, 2016, the company had 143 branches. Columbia Banking System, Inc. was founded in 1993 and is headquartered in Tacoma, Washington.