Originally founded as a mutual savings bank, BayVanguard Bank served the communities of the Baltimore metropolitan area in Maryland for many years. The bank was formed through the merger of Bay-Vanguard Federal Savings Bank and Kopernik Bank in 2020. It focused on providing a full range of traditional banking services, including personal and business checking and savings accounts, certificates of deposit (CDs), and various loan products such as mortgages, home equity, and commercial loans. In a transaction completed in 2022, BayVanguard Bank was acquired by BCB Bancorp, Inc., and its operations and branches were subsequently rebranded under the name BCB Bank.