CoastalSouth Bancshares, Inc. operates as the bank holding company for Coastal States Bank that provides various banking products and services to retail and commercial customers. The company accepts various deposits, including individual retirement accounts, certificates of deposits, minor savings accounts, noninterest-bearing demand deposits, as well as checking, savings, and money market accounts. It offers commercial loans, such as acquisition, development, and construction loans; income-producing and owner-occupied commercial real estate loans; senior housing loans; small business administration loans; and commercial and industrial loans. In addition, the company offers retail loans, including marine vessels, residential mortgages, home equity loans, cash value life insurance line of credit, and other consumer loans. Further, it provides commercial and government guaranteed lending; treasury management; home builder financing, senior housing, and warehouse lending; and correspondent banking, credit and debit cards, and digital banking, including card management, e-statement, bill payment, telephone banking, alerts, transfers, and mobile deposits. It operates retail banking branches in the Lowcountry of South Carolina; Savannah, Georgia; and metro Atlanta, Georgia. The company was founded in 2003 and is headquartered in Atlanta, Georgia.