Investar Holding Corporation operates as the bank holding company for Investar Bank that provides a range of commercial banking products to individuals and small to medium-sized businesses in South Louisiana. The company offers various deposit products and services, such as savings, checking, money market, and individual retirement accounts, as well as various certificates of deposit; debit cards; and mobile banking services. It also provides commercial real estate loans; commercial and industrial loans, including working capital lines of credit and equipment loans; loans for the construction of commercial projects, and single family residential and multifamily properties; one-to-four family residential real estate lending, such as second mortgage loans; consumer loans, such as secured and unsecured installment and term loans, home equity loans and lines of credit, and auto loans, as well as loans for personal, family, and household purposes.