Director, Office of Safeguards and Security Assessments

Thomas “Clay” Messer serves as the Director of the Office of Safeguards and Security Assessments within the Department of Energy’s (DOE) Office of Enterprise Assessments (EA).  The office is responsible for conducting independent evaluations of the effectiveness of safeguards and security policies and programs throughout the Department, including systems, programs, facilities, and policies for protecting such Departmental assets as classified matter, radiological materials, chemical materials, biological agents, select agents and toxins, critical infrastructure, government property, and personnel from malevolent acts.  Prior to becoming Director, Mr. Messer served as the office’s Deputy Director.

Clay Messer Portrait Photo

Before joining EA, Mr. Messer worked as a contractor at DOE’s National Nuclear Security Administration Pantex Plant, where he served in many positions.  These included Protective Force Management and Program Integration Department Manager, where his responsibilities included the safeguards and security analytical basis program and security interface with the nuclear safety, nuclear explosive safety, explosive safety, and worker safety and health organizations.  He also served in leadership positions with the Texas Department of Criminal Justice and the U.S. Marine Corps.

Mr. Messer holds a Bachelor of Science degree in Business Management and a Master of Business Administration degree from Wayland Baptist University.  He has completed the U.S. Office of Personnel Management’s Leadership Development Program in Executive Management and executive course and the Harvard Kennedy School’s Senior Executive Fellows program.