RBB Bancorp operates as a bank holding company. It provides various banking products and services such as checking, savings, money market accounts, and certificates of deposits. Its Specific services include remote deposit, E-banking, mobile banking, commercial and investor real estate loans, business loans and lines of credit, Small Business Administration (SBA) 7A and 504 loans, mortgage loans, trade finance, and a full range of depository accounts. It generates its revenue from interest received on loans and leases and, to a lesser extent, from interest received on investment securities and derives income from noninterest sources, such as fees received in connection with various lending and deposit services, loan servicing, gain on sales of loans, and wealth management services.