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Please note: To contact a USTDA Staff member, please call our main office line at 703-875-4357 or submit your inquiry using our contact form.

USTDA Executives and Department Heads

Name Title
Leocadia I. Zak


Enoh T. Ebong
Deputy Director
Michael Levitin

General Counsel

Thomas R. Hardy
Director for Congressional Affairs and Public Relations & Chief Information Officer
Clark Jennings

Chief of Staff

Andrea Lupo
Director for Global Programs
Carl B. Kress
Regional Director, East Asia / Middle East, North Africa, Europe and Eurasia
Nathan Younge
Regional Director, Latin America and the Caribbean
Henry Steingass
Regional Director, South and Southeast Asia
Lida M. Fitts
Acting Regional Director, Sub-Saharan Africa
Diana Harbison
Program Evaluations Director, Office of Evaluations
Michele Bivins
Acting Director of Finance
Garth Hibbert
Chief, Office of Acquisition Management
Carolyn Hum
Administrative Officer, Office of Administration