Sound Financial Bancorp, Inc. is a bank holding company, which engages in the provision of traditional banking and other financial services. It involves attracting retail and commercial deposits from the general public and local governments and investing those funds, along with borrowed funds, in loans secured by first and second mortgages on one- to four-family residences, commercial and multifamily real estate, construction and land, consumer, and commercial business loans. The company was founded in 2008 and is headquartered in Seattle, WA.