RA Capital Management announced the final close of its $120 million Planetary Health Fund (PHF). The fund invests in high-growth companies that advance resource availability, energy innovation, and industrial productivity. The Planetary Health team backs capital-efficient companies that can become profitable without relying on subsidies or policy support.
They focus on industries such as critical minerals, energy, manufacturing, agriculture, and environmental services. PHF is an early-stage fund that invests in companies based on their path to near-term deployment and profitability. The fund has invested in seven portfolio companies so far.
These include Sortera Technologies and AM Batteries in metal recycling and advanced battery manufacturing. It also invested in Koloma for geologic hydrogen exploration, Bia Energy and Optivolt in next-generation energy platforms, and two stealth companies in mining technology and metal circularity. Managing Partners Brigid O’Brien and Kyle Teamey lead the Planetary Health team.
Planetary Health investment strategy
They previously worked together at In-Q-Tel, the strategic investment arm of the U.S. Intelligence Community. O’Brien also served as Managing Director at In-Q-Tel’s Australian subsidiary and Head of Venture Investments at BHP.
Teamey was a Partner at Breakthrough Energy Ventures and CEO and Co-Founder of Liquid Light, a CO2-to-chemicals company. RA Capital Management was founded in 2004. It is a multi-stage investment manager dedicated to evidence-based investing in healthcare, life sciences, and planetary health companies.
The firm has over 170 employees and more than $10 billion in assets under management. It creates and funds innovative companies from seed rounds to public financings. The Planetary Health Fund represents an expansion of RA Capital’s mission.
It applies the same rigorous, evidence-based approach to planetary health as its other investments. The goal is to build enduring companies that address global challenges while delivering strong returns.