Mercantile Bank Corporation is a Michigan-based bank holding company operating two state-chartered banks that serve small- to medium-sized businesses and consumers across Michigan through commercial and retail lending, deposit products, and digital banking services. The company generates revenue primarily from net interest income on its loan and securities portfolio, along with deposit and loan fees, with a diversified loan base concentrated in commercial real estate, residential mortgages, and consumer loans. Through its subsidiaries, Mercantile also operates an insurance agency and invests in community development tax credit opportunities.