Thomas D. Lehrman is the Board Director at Gerson Lehrman Group.He is a Co - Founder and former Co - Chief Executive Officer of Gerson Lehrman Group, Inc. Thomas Lehrman most recently served as Director of the Office of WMD Terrorism at the U.S. Department of State and previously as a member of the professional staff on the President's WMD Commission. Earlier in his career, he worked as a Financial Analyst at Tiger Management. He is also a Co - Founder & Board Member of the Brooklyn Excelsior Charter School and the Hillhouse Scholars Program. Thomas Lehrman is a Chartered Financial Analyst and graduated from Duke University and Yale Law School.