Columbia Banking System, Inc. operates as the Bank holding company of Umpqua Bank that provides banking, private banking, mortgage, and other financial services in the United States. The company offers deposit products, including business, non-interest-bearing checking, interest-bearing checking and savings, and money market; and insured cash sweep and other investment sweep solutions. It also provides commercial lending products, such as commercial lines of credit and term loans, accounts receivable and inventory financing, international trade finance, commercial property loans, multifamily loans, equipment loans, commercial equipment leases, and real estate construction loans; and permanent financing and small business administration program financing, as well as capital markets. In addition, the company offers wealth management comprising financial planning, investment, trust, and insurance; and treasury management, which includes digital and mobile banking solutions, ACH, wires, positive pay, remote deposit capture, integrated payments, integrated receivables, lockbox, cash vault, real-time payments, commercial card, and foreign exchange and international banking related products, as well as merchant services. Further, it provides residential real estate loans and consumer loans. It serves its products to corporate, institutional, small business, and individual customers. The company was founded in 1953 and is based in Tacoma, Washington.