Capricorn Investment Group began as the platform that managed Jeff Skoll's fortune and the Skoll Foundation's capital before growing into a broader investment platform that combines OCIO services for foundations and families, direct deep-tech venture investing, and minority stakes in other impact-focused investment managers. Its venture approach favors companies built around hard science and engineering rather than business-model pitches, and its fund-building strategy specifically targets impact managers in the $100 million to $1 billion range that are too advanced to be startups but too small to be established institutions.