Halcyon accelerates the impact-driven future of business. #halcyoninspires Halcyon accelerates the impact-driven future of business. Halcyon is a 501(c)3 nonprofit organization based in Washington, D.C. Our signature programs are fellowships for early-stage social entrepreneurs, designed to equip them with tools and relationships they need to achieve scalable, lasting impact in their fields. More broadly, we seek to mold the business world to be a more inclusive, impact-oriented place. Our groundbreaking model of offering residential fellowships without taking any equity in our fellows’ ventures paved the way for change in social enterprise ecosystems. To date, Halcyon has supported over 406 entrepreneurs. Halcyon fellows have impacted over 9.2 million lives, created over 6,000 jobs, and have secured more than $500 million in further investments.