Prior to her position with IDA, Ms. Greenstein was the Vice President of Finance and General Counsel of Genex Corporation, a NASDAQ-traded biotechnology corporation.  While employed at Genex, Ms. Greenstein was responsible for the full range of corporate legal matters. Her major activities included two public and several private stock offerings; acquisition of another corporation; negotiation of research and development and/or licensing agreements; three major real estate transactions; and formulation of corporate strategy for protection of intellectual property, including oversight of litigation counsel. Ms. Greenstein has also been the Deputy General Counsel of the National Science Foundation and Deputy Assistant Director of Policy and Budget for the International Development Cooperation Agency.

Ms. Greenstein is a member of the Board of Directors and the Cuairman of the Audit Committee of PLATO Learning, Inc., a publicly traded provider of computer-based and e-learning instructions for kindergarten through adult learners. She is also a member of the Board of DIrectors and Vice Chair of VSA arts, an affiliate of the John F. Kennedy Center for the Performing Arts.  She has also served as the Chair of the Selection Panel for the AAAS Scientific Freedom and Responsibility Award, as a member of the American Red Cross Committee for the Protection of Human Subjects, as a principal of the Council for Excellence in Government, as a member of the United States Department of State Defense Trade Advisory Group, as a panel member and member of the Steering Committee for the Center for Strategic and International Studies Project on Export Controls in a Changing World, as the Co-chair of the Advisory Committee for the AAAS/ABA Project on Legal and Ethical Implications of Genetic Testing,   as a member of the AAAS Committee on Scientific Freedom and Responsibility, as the Chair of the Central Intelligence Agency Academic Advisory Panel to the Technology Transfer Intelligence Committee, as a member of the National Academy of Sciences Panel on the Future Design and Implementation of U.S. National Security Controls, as a member of the Advisory Board, Special Report Series on Biotechnology of the Bureau of National Affairs, Inc., as a member of the National Academy of Sciences Panel on the Impact of National Security Controls on International Technology Transfer, and as a member of the White House Office of Science and Technology Policy Advisory Committee on Scientific Communication.

Ms. Greenstein graduated cum laude from Harvard University with an A.B. in government.  She received a M.A. in International Relations from Yale University and a J.D. with highest honors from the George Washington University National Law Center. She is a member of the DC and Virginia bar.