Geoffrey Eisenberg is a Partner at the Ecosystem Integrity Fund and has been a member of the EIF investment team since its inception. Geoff leads fundraising and investor relations for the firm. His responsibilities also include investment deal sourcing, sector research, and strategy development, with a particular focus on Transportation, Renewable Energy, Grid Modernization, and Green Chemistry. Geoff also works directly with EIF’s portfolio companies on strategy, capital raising, and business development. He serves as a board director for ZeroAvia, Shoreline, and Sunverge, and a board observer for Liminal. He is formerly a board member of AMP and T-Rex, and was a board observer at EV Connect and Complete Solar.

Prior to joining EIF, Geoff worked as a Senior Consulting Associate at Cambridge Associates, a global institutional investment consulting firm. While at Cambridge, he provided investment counsel to institutional, pension, and ultra high net-worth clients.
Geoff also conducted due diligence on investment managers and helped clients build diversified and sophisticated portfolios across asset classes. He initiated the firm’s 2007 white paper on cleantech investing for institutional clients and conducted extensive research on the cleantech industry, including company and venture capital/private equity fund analysis.

In addition to his role at EIF, Geoff is a mentor for the Hawaii Energy Excelerator, helping clean energy start-ups scale. Geoff sits on the Leadership Council for Vote Solar, and he serves as a Director of the Forsythia Foundation, a non-profit focused on the commercialization of safer green chemistry replacements for toxic chemicals in our products and environment.

Geoff holds a BA in History and Philosophy from Bates College in Lewiston, ME.