David Garman

Decker Garman Sullivan


David Garman is currently a principal and managing partner in the consulting firm Decker Garman Sullivan and Associates, LLC, with a client base that includes Fortune 500 companies, national laboratories, universities, think tanks and “greentech” startups. 

At the U.S. Department of Energy (DOE), Garman served as the Assistant Secretary for Energy Efficiency and Renewable Energy from 2001-2005, and then as the Under Secretary of Energy from 2005-2007.  He testified before Congress 47 times and was twice awarded the Secretary’s Gold Medal.  In addition, the National Academy of Public Administration credited Garman and his team for transforming the Office of Energy Efficiency and Renewable Energy from a “troubled organization” to one that was “worthy of emulation.”  

Prior to his service in the Executive Branch, Garman served two United States Senators and two Senate Committees in a variety of professional staff capacities over the course of two decades.

He holds a Bachelor of Arts in Public Policy from Duke University, and a Master of Science in Environmental Sciences from the Johns Hopkins University.