TRMK

Trustmark Corporation

A Mississippi-based bank holding company, Trustmark Corporation runs Trustmark National Bank, offering everyday banking, loans, and wealth services to individuals and businesses across the South. It traces its roots to the Jackson Bank, founded in Jackson, Mississippi, in 1889 to serve local trade, farming, and business credit. Over the decades it grew through mergers, taking its current name in 1985—and in 2025 it switched from a national charter to a Mississippi state charter, tying its brand even more tightly to its home state.