Upcoming Deadlines

Range 30 days 3 months 6 months 12 months
Source EU Federal (DE) Schleswig-Holstein Mecklenburg-Vorpommern Lower Saxony Foundation Private US Foundation UK Nordic UN / Multilateral Corporate Impact Investor Philanthropic Network International
Relevance ≥70% ≥50% ≥30%
Topic Aquaculture Biodiversity Blue Economy Capacity Building Circular Economy Climate Coastal Protection Coral Reefs Education Fisheries Marine Conservation Marine Protected Areas Plastic Waste Pollution Recycling & Upcycling Research Seaweed & Algae Waste Management
Mechanism Accelerator Blended Finance Grant Investment Loan / Concessional Finance Prize Technical Assistance
Region Africa Arctic Baltic Sea Global India Mediterranean Nordic / Denmark North Sea Southeast Asia
Audience For Communities / Cooperatives For NGOs For Researchers For Startups
Funder-type Corporate Family Office Foundation Government Impact Investor Multilateral Philanthropic Network Research Council
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3 fixed deadlines, 5 rolling/open

May 2026

15.05. 56d
ReFED Catalytic Grant Fund · ReFED Catalytic Grant Fund · Minimum $100,000 per grant over approximately a two-year period; fund capacity reported up to $20M total. Individual grant amounts not explicitly stated on the page.
For NGOs For Startups Foundation Grant Capacity Building Circular Economy Climate Research Waste Management
27.05. 68d
All news - BlueInvest Community · TASC-RestoreMed / BlueInvest Community (European Commission) · €200,000–€1.4M per project (Community-Led Actions, total €7M); €100,000 per project (Transition Agendas, total €1M)
For Communities / Cooperatives For NGOs For Researchers Government Multilateral Grant Technical Assistance Mediterranean Biodiversity Blue Economy Circular Economy Coastal Protection Marine Conservation Plastic Waste Pollution Seaweed & Algae
29.05. 70d
European Science Foundation — Blue Action (Atlantic-Arctic Ocean Research) · BlueActionAA Consortium (led by Marine Institute, managed by European Science Foundation; funded by Horizon Europe) · Community-Led Action Call: EUR 200,000 to EUR 2,000,000 per project (total budget EUR 7M). Transition Agenda Call: up to EUR 100,000 per roadmap (at least 20 funded). Maximum per single organization EUR 500,000.
For Communities / Cooperatives For NGOs Government Grant Arctic Biodiversity Blue Economy Coastal Protection Marine Conservation Pollution

Rolling / Open Deadlines

periodic
The Incubation Network (SecondMuse & Circulate Capital) · The Circulate Initiative and SecondMuse (with backing from Circulate Capital, U.S. State Department, Ocean Conservancy, and AEPW) · Main three-year programme concluded March 2023. Country-specific accelerators ongoing; check incubationnetwork.com for current intake rounds
For Startups Corporate Foundation Impact Investor Multilateral Accelerator Grant Technical Assistance India Southeast Asia Circular Economy Plastic Waste Recycling & Upcycling Waste Management
Rolling
EU Mission: Restore our Ocean and Waters - Research and innovation · European Commission – Directorate-General for Research and Innovation (Horizon Europe) · Rolling — periodic calls under the Horizon Europe Work Programme (2026/27 calls announced in January 2026)
For NGOs For Researchers Government Multilateral Grant Arctic Baltic Sea Mediterranean North Sea Biodiversity Blue Economy Circular Economy Climate Coastal Protection Marine Conservation Pollution Research
periodic
EPA Solid Waste Infrastructure for Recycling Grants (SWIFR) · Round 3 not yet announced (Round 2 selectees announced December 2025)
Government Grant Circular Economy Plastic Waste Recycling & Upcycling Waste Management
periodic
IUCN Blue Natural Capital Financing Facility (BNCFF) · IUCN Blue Natural Capital Financing Facility (BNCFF) · Unknown
Multilateral Blended Finance Grant Technical Assistance Global Biodiversity Coastal Protection Marine Conservation Marine Protected Areas
Rolling
IUCN IslandPlas Community Grants · Unknown — no open call found; programme supports 7 African island nations through rolling community grants
For Communities / Cooperatives For NGOs Corporate Grant Africa Blue Economy Capacity Building Circular Economy Plastic Waste Recycling & Upcycling Waste Management