Catharine Cyr Ransom

Managing Director


Through her career in government and at GPG, Catharine has worked on almost every major issue and policy debate related to energy, the environment and infrastructure. From the raging political fight over the Renewable Fuel Standard (RFS) to securing federal permitting approvals for HVDC transmission projects, Catharine has unparalleled expertise on a diverse set of issues as well as the network and political experience to advance her clients’ interests. At GPG, she manages highly public, integrated advocacy campaigns; provides political intelligence, counsel, and direct lobbying; and performs transactional due diligence and risk assessment.

This combination of practical experience and the creative application of the latest communications tools yields results: an innovative campaign Ransom led to change the conversation about our nation’s infrastructure won the 2014 Sabre Award in Federal Public Affairs.

Catharine is a Hill veteran, having served for close to a decade in the U.S. Senate, as Senior Policy Advisor to Senator Max Baucus (D-MT); the Committee on Environment and Public Works; and Senator Bob Graham (D-FL) managing environment, energy and agriculture legislative portfolios.

Prior to her time in the Senate, Catharine worked for the Navy, focusing on climate change and ozone-depleting substance elimination.

Catharine graduated Phi Beta Kappa from Penn State University with a B.A. in Economics, and she received her Master’s Degree in Environment and Energy Engineering Management from The George Washington University. She is conversant in Spanish.