Gabriel Kra co-founded Prelude Ventures after working as a scientist, activist, entrepreneur, banker, and ski bum, including being arrested at a climate protest in the early 1990s and earning a master's in atmospheric chemistry. He runs Prelude with a single climate-motivated LP (the Simons family) and maintains a hard line against investing in fossil fuel expansion while focusing on capital-intensive, deep-tech climate solutions across multiple sectors rather than narrow niches. Gabriel Kra co-founded Prelude Ventures after working as a scientist, activist, entrepreneur, banker, and ski bum, including being arrested at a climate protest in the early 1990s and earning a master's in atmospheric chemistry. He runs Prelude with a single climate-motivated LP (the Simons family) and maintains a hard line against investing in fossil fuel expansion while focusing on capital-intensive, deep-tech climate solutions across multiple sectors rather than narrow niches.