Trustmark Corporation operates as the bank holding company for Trustmark National Bank that provides banking and other financial solutions to individuals and corporate institutions in the United States. It operates in two segments, General Banking and Wealth Management. The company offers checking, savings and money market accounts, and certificates of deposit, as well as certificates of deposit and individual retirement accounts; and treasury management services. It also provides loans comprising financing for commercial and industrial projects, income producing commercial real estate, owner-occupied real estate, and construction and land development; and installment and real estate loans and lines of credit.