Investar Holding Corporation is a regional bank holding company that operates through its subsidiary Investar Bank, National Association, providing full banking services to individuals, professionals, and small to medium-sized businesses across south Louisiana, Texas, and Alabama. The company generates revenue primarily from interest income on a diversified loan portfolio encompassing real estate lending (construction, residential, multifamily, and commercial), commercial and industrial loans, and consumer lending, supplemented by deposit service fees, interchange fees, and bank-owned life insurance income. Investar emphasizes relationship banking and disciplined underwriting focused on credit quality, collateral adequacy, and borrower cash flow coverage.