EX-21 5 trmk-ex21.htm EX-21

Exhibit 21

LIST OF SUBSIDIARIES

The following is a list of all subsidiaries of Trustmark Corporation as of December 31, 2025, and the jurisdiction in which each was organized. Each subsidiary does business under its own name.

Name |  | Jurisdiction Where Organized
Trustmark Bank |  | Mississippi
F. S. Corporation (inactive) |  | Mississippi
First Building Corporation (inactive) |  | Mississippi
First Capital Corporation (inactive) |  | Mississippi
Trustmark Preferred Capital Trust I |  | Delaware
Trustmark Securities, Inc. (1) (inactive) |  | Mississippi
Southern Community Capital, LLC (1) |  | Mississippi

(1)
Subsidiary of Trustmark Bank.