Hartree Partners is a venture capital fund specializing in Series B investments, focusing on data analytics, climate, and green tech. They help companies navigate new markets to maximize revenue and minimize risks. With over two decades of experience in energy and commodities markets, Hartree Partners have invested in companies like SustainCERT. Founded in 1997 and headquartered in New York, they also have global offices. Owned by its Managing Partners, senior staff, and Oaktree Capital, Hartree Partners engage in ventures aimed at sustainable energy and environmental solutions, including Vertree, AMPYR, and Hartree Solutions.