Halcyon’s Climate Fellowship empowers entrepreneurs across the United States and the globe creating solutions that address climate mitigation, adaptation, and resilience. Sub-sectors include renewable energy generation and storage, green building technologies, climate data and analytics, climate-smart agriculture and food systems, WaterTech, blue economy solutions, and more.

Halcyon ran our inaugural Climate Fellowship in 2024, supporting eight ventures through an immersive eight-week in-person residency in Washington, DC with expert training, mentorship, technical and legal support, and more. Our second iteration of the program successfully ran from June through August 2025.