Ecosystem Integrity Fund
UnclaimedAt a Glance
- Check Size
- $. – $.
- Stage
- Seed, Series A, Series B+
- Sectors
- Climate, Agriculture
- Founded
- 2012
- HQ
- San Francisco, CA
About Ecosystem Integrity Fund
Ecosystem Integrity Fund is a venture capital firm. To use private capital to accelerate the transition to sustainability, resulting in a healthier planet, healthier communities, and strong economic growth.EIF seeks to demonstrate that there is no trade-off between having positive impact and achieving outstanding financial returns. Sustainability is fundamentally about making things better: more efficient, more functional, less toxic, and less costly. The firm focuses on Pre-Seed, Seed, Series A, Series B+ investments across sectors including Aerospace & Defense, Other, Consumer, Fintech, Climate.
Investment Thesis
“Invests in growth-stage companies accelerating the transition to clean energy and sustainable infrastructure.”
Leadership Team
James Everett is managing partner, wrote the fund strategy, leads research and diligence and chairs the investment committee. He was previously a partner at Aquillian Investments and conservation finance manager at Pacific Forest Trust, with earlier work in commercial finance and timberland investment.
Devin Whatley is the other managing partner and came to investing from operating, having launched an organic food delivery business and run ventures in organic wine before joining Aquillian. Geoffrey Eisenberg is senior partner and was a senior consulting associate at Cambridge Associates advising institutional, pension and ultra-high-net-worth clients. Sasha Brown, also senior partner, was a principal at NewWorld Capital Group overseeing more than $100 million in solar and power electronics investments, after J.P. Morgan and environmental consulting. Jessica Singh, Amanda Bamberger and Seth Udelson fill out the investment bench, with backgrounds at the IFC, Factor[e] Ventures and a sustainability-focused family office.
Sector Focus
Investment Stage
Notable Portfolio Companies
Fund History
EIF has raised five funds on a steady step-up. Fund I launched in 2011 with $19.6 million under management. Fund II raised $57 million. Fund III closed at $100 million in May 2019.
Fund IV closed near $250 million in July 2021, among the largest sustainability-dedicated venture funds raised that year; its first six investments included East African electric motorbike and battery-swap operator Ampersand, eco-packaging company Vericool, hydrogen-electric aviation developer ZeroAvia and electric scooter company Unagi. Fund V closed in June 2025 at $225 million, short of a $300 million target and the first vintage to come in below its predecessor. Typical checks run $2 million to $5 million. The strategy is deliberately unglamorous: capital-efficient companies in under-explored sustainability niches with proven or near-commercial technology rather than frontier technical risk, across energy, transportation, waste, water, agriculture and financial services. Realised exits include Zep Solar, eMotorwerks, EVConnect, KeVita, Sunverge and Opti RTC.
Frequently Asked Questions
What stage does Ecosystem Integrity Fund invest at?
Ecosystem Integrity Fund primarily invests at the Seed, Series A, Series B+ stages. This means they focus on companies that are building their initial product and finding product-market fit.
Where is Ecosystem Integrity Fund located?
Ecosystem Integrity Fund is headquartered in San Francisco, CA. Many of their portfolio companies are also based in this region, though they invest across geographies.
What sectors does Ecosystem Integrity Fund focus on?
Ecosystem Integrity Fund focuses on investments in Climate, Agriculture. Their portfolio reflects deep expertise and networks within these sectors.
What is Ecosystem Integrity Fund's typical check size?
Ecosystem Integrity Fund's typical investment check size ranges from $. to $.. Actual amounts may vary based on the stage, sector, and specific opportunity.
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