MainStreet Bancshares, Inc. is a Virginia-based financial holding company that owns MainStreet Bank, a community commercial bank operating branches across Northern Virginia and Washington, D.C., serving retail customers, small to medium-sized businesses, and professionals. The bank offers deposit products including checking and savings accounts, certificates of deposit with FDIC protection, lending across commercial real estate, residential construction, and consumer segments, and digital banking services including online and mobile platforms. MainStreet generates revenue through net interest income on loans and deposits, fee-based banking services, and treasury investments, competing against larger regional banks through emphasis on personalized, local decision-making and disciplined credit underwriting in one of the nation's largest and wealthiest metropolitan areas.