EWSB Bancorp, Inc. operates as the bank holding company for East Wisconsin Savings Bank that provides various banking products and services in Wisconsin. The company offers a range of deposit accounts, including certificates of deposit, money market accounts, savings accounts, and interest-bearing and noninterest-bearing demand accounts. It also provides one- to four-family residential real estate loans, marine and recreational vehicle loans, home equity loans and lines of credit, and other consumer loans, as well as commercial real estate, multifamily, construction, and commercial loans. In addition, it invests in securities consisting primarily of the U.S. Treasury and federal agency securities, including agency mortgage-backed securities, securities issued by state and political subdivisions, and corporate bonds. The company was founded in 1887 and is based in Kaukauna, Wisconsin.