Banner Corporation operates as the bank holding company for Banner Bank and Islanders Bank that provides commercial banking and financial products and services to individuals, businesses, and public sector entities primarily in the United States. It offers deposit products, including interest-bearing and non-interest-bearing checking accounts, money market deposit accounts, regular savings accounts, and certificates of deposit, as well as treasury management services and retirement savings plans. The company also provides commercial real estate loans, including owner-occupied, investment properties, and multifamily residential real estate loans; construction, land, and land development loans; residential mortgage loans; commercial business loans; agricultural loans; and consumer loans, such as home equity lines of credit, automobile, and boat and recreational vehicle loans, as well as loans secured by deposit accounts. In addition, it engages in the mortgage banking operations through the origination and sale of one- to four-family and multi-family residential loans. Further, the company provides electronic and digital banking services. As of December 31, 2018, it operated 182 branch offices, including 179 Banner Bank branches and 3 Islanders Bank branches located in Washington, Oregon, California, and Idaho. It also operates 17 Banner Bank loan production offices located in Washington, Oregon, California, Idaho, and Utah. Banner Corporation was founded in 1890 and is based in Walla Walla, Washington.