Decarbonization Partners is a climate-focused investment platform formed by BlackRock and Temasek, investing in late-stage and growth-stage decarbonization companies. The firm targets scalable technologies across energy, industry, transportation, and materials, typically once commercialization risk is reduced and deployment is realistic at global scale. For founders, Decarbonization Partners is not appropriate for seed or Series A rounds; it becomes relevant only once the company has significant traction, industrial pilots, and institutional-grade readiness.