Applications are now open for the 2026 Halcyon’s Global Climate Fellowship. Halcyon’s 2026 Global Climate Fellowship will serve founders across the world who are tackling pressing challenges in climate adaptation and resilience. Through a hybrid programming format, selected entrepreneurs will attend a one-week, in-person residency in Washington, DC, five virtual programming days, and a final one-week, in-person residency in Los Angeles, California.
Sectors
Solutions addressing climate adaptation and resilience, including but not limited to:
Renewable and resilient energy systems and storage
Adaptive infrastructure and green building technologies
Climate intelligence and early-warning systems
Climate-smart agriculture and food systems
WaterTech (water security, resilient water systems, and more)
Blue economy and coastal resilience
Financial resilience to climate shocks (including, but not limited to, climate insurance)
Eligibility Requirements
Location: Global
Stage: Must have a working Minimum Viable Product (MVP) and a realistic potential to scale. Applicants must demonstrate early user feedback or evidence of early commercial validation, such as pilots, LOIs, or revenue.
Team:
May apply with up to one Co-Founder.
Applicant must be the CEO or hold primary decision-making power.
Must be fluent in English (programming will be in English).
Must be at least 21 years of age by the start of the program.
Program Engagement: Applicant(s) must commit to participating in all residencies, program activities, events, and in-person and virtual sessions.
Impact: Must be developing a product and venture which contributes towards one or more of the UN’s 17 SDGs.
Benefits
$10K in Amazon Web Services, Inc. (AWS) credits
$6K equity-free stipend per venture
Workshops with experts in product-market fit, capital strategy, and leadership
Professional advisors
Networking with investors and varied stakeholders in climate in Washington, DC and Los Angeles, CA
Access to Halcyon’s global community of 600+ founders
Continued benefits after your program
Program Structure
The final cohort is selected from 10 ventures across the globe. The program is delivered in a hybrid modality through a virtual kickoff meeting, two one-week, in-person residencies in the US, and four additional virtual programming days.
Founders receive training in Halcyon’s methodology on product-market fit, capital strategy, and leadership, as well as access to critical resources and connections to accelerate their ventures.
Application Timeline:
December 8th, 2025: Application window opens
January 15th, 2026: Last chance to submit your eligibility application to be considered for this application window! Halcyon team begins reviewing eligibility applications
Mid-January, 2026: Halcyon team sends out invitational applications to select candidates on a rolling basis
January 23rd, 2026: Invitational application deadline
February 24-25th 2026: Virtual pitch days for finalists
March 6th, 2026: Selected founders notified
April 7th, 2026: Virtual Program Kickoff
April 24th-May 1st, 2026: Residency Week #1 in Washington, DC
May 20th 2026: Virtual Meeting #2
June 17th, 2026: Virtual Meeting #3
July 8th, 2026: Virtual Meeting #4
August 12th, 2026: Virtual Meeting #5
September 11th-September 18th, 2026: Residency Week #2 in Los Angeles, CA
