Columbia Banking System, Inc., is a registered bank holding company. Its wholly-owned subsidiary, Columbia National Bank, also conducts full-service commercial banking under the name Astoria Bank in Washington State and Oregon. Headquartered in Tacoma, Washington, the company provides a full range of banking services to small, medium and small businesses, professionals and individuals. Founded in 1993, Columbia Bank takes full advantage of commercial banking opportunities in the company's key market areas. The opportunity to capture the market share of commercial banks is due to the increase in bank mergers, mainly through the acquisition of state-owned bank holding companies with different customers. 

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