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You are here: Home / Training and Mentorship / Open Call: Ray of Hope Accelerator Program

Open Call: Ray of Hope Accelerator Program

Deadline Date: April 24, 2026

The Biomimicry Institute is inviting applications to support early-stage, nature-inspired startups that develop innovative solutions to address the world’s most pressing environmental challenges.

The main focus areas of the program include chemistry and materials, built environment, manufacturing and advanced robotics, renewable energy, transportation and mobility, food and agriculture, conservation and remediation, life sciences and medtech, biotechnology, consumer products, cosmetics, textiles, water, BlueTech, and climate tech. The program prioritizes startups that integrate nature-inspired solutions by drawing on biological principles, ecological relationships, or other strategies from the natural world to solve environmental problems.

Startups accepted into the program typically operate at the Pre-Seed, Seed, or Series A stages and have a working prototype with Technology Readiness Level 4 or higher. Eligible applicants have generally secured between $250,000 and $5 million in prior funding, though exceptions are considered. Startups must be legally established with two or more full-time team members, and at least one founder or executive team member must actively participate in the program, submit deliverables, and attend the mandatory four-day nature retreat.

Selected startups receive a non-dilutive grant of $15,000 to support their growth, though this amount may be subject to change. Participants join the accelerator’s global ecosystem, gaining ongoing access to networks, resources, corporate partnerships, investor connections, and opportunities to support incoming cohorts as alumni. The program evaluates each application holistically to ensure a strong fit with the mission of scaling systemic, nature-inspired solutions to environmental challenges.

For more information, visit The Biomimicry Institute.

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RFAs: Nutrient-Dense Food Products for Women and Girls (India)

Open Call for Global Solidarity Fund (United Kingdom)

Submissions open for Grierson-Percy Documentary Grant (UK)

Ideas!Reich: Innovation Funding Programme for SMEs and Startups (Austria)

Open Challenge Program for DeepTech and AI Startups in India

SmartAgri CoE Open Challenge Program (India)

2026 X-celerate Climate Tech Acceleration Program (Vietnam)

ASTRID Climatic Extremes Call for Expression of Interest 2026 (France)

Apply Now: PIER71 Smart Port Challenge 2026

Sustainable Chemical Supply Chains and Engineering Biology Innovation Exchange (UK)

GIMA Innovators Seed Corn Fund (UK)

CFAs: C-CAMP Wadhwani Innovation Network Centre of Excellence (India)

Open Call: 500 Global Accelerator Program in Eurasia

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