Tammy E. Newmark, a leader in impact investing, serves as CEO and Managing Partner of EcoEnterprises Fund, a pioneer in investing growth capital in nature-based solutions. She has led EcoEnterprises Fund for 25 years, first under The Nature Conservancy, and then as a women-owned and managed investment firm beginning in 2009. EcoEnterprises Partners IV, LP, the fourth fund under management was launched in 2025. EcoEnterprises Fund has invested in nearly 50 innovative small companies in Latin America which serve as transformative models to drive climate resilience, biodiversity conservation, and social impact. Previously, she was a founder of the first venture fund that specialized in renewable energy, clean technology, and green investments in small and medium sized companies in emerging markets. Tammy Newmark authored, Impact Investing for a Sustainable Planet: Insights from EcoEnterprises Fund (2024), and, Portfolio for the Planet: Lessons from 10 years of impact investing (2012).

Investor Profile

Based In: US

Investor Type: Impact

Preferred Sector(s): Natural Capital: natural climate investments, nature-based solutions

Preferred Stage(s): Growth

Preferred Geo(s): Mezz debt and quasi-equity

Website: https://ecoenterprisesfund.com/

LAVCA Honors

Top Women Investors in Latin America 2025