First Seacoast Bancorp operates as a holding company for First Seacoast Bank that provides various banking products and services. It offers various deposit accounts, including non-interest-bearing and interest-bearing checking accounts, savings accounts, money market accounts, and certificates of deposit for individuals and businesses. The company also provides various lending products comprising one-to four-family residential real estate loans, commercial real estate and multi-family real estate loans, commercial and industrial loans, home equity loans and lines of credit, and consumer loans, as well as acquisition, development, and land loans. In addition, it offers wealth management services, such as retirement planning, portfolio management, investment and insurance strategies, business retirement plans, and college planning to individuals. The company operates through its main office located in Dover, New Hampshire; and four branch offices located in Barrington, New Hampshire. The company was founded in 1890 and is based in Dover, New Hampshire. First Seacoast Bancorp is a subsidiary of First Seacoast Bancorp, MHC.