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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4 fixed deadlines, 6 rolling/open

May 2026

27.05. 8d left
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
31.05. 12d left
Common Waters: Community-based Coastal and Riverine Stewardship · National Geographic Society · Level I: up to $20,000 (for earlier-career applicants, first-time NGS grantees). Level II: up to $75,000 (for established practitioners or prior NGS grantees).
Foundation Grant Arctic Global Mediterranean Biodiversity Climate Coastal Protection Fisheries Marine Conservation

June 2026

04.06. 16d left
Preserving Traditional Arts (NGS + Lindblad) · National Geographic Society · Level I: up to $20,000 (earlier-career). Level II: up to $75,000 (established practitioners or prior NGS grantees). Funds usable over up to 2 years.
Foundation Grant Global Mediterranean Capacity Building Education
17.06. 29d left
EU Blue Partnership for Sustainable Blue Economy · Sustainable Blue Economy Partnership · €43.5 million total for the third joint transnational call; individual project allocations not specified on the page
Government Grant Baltic Sea Mediterranean North Sea Blue Economy Marine Conservation Research

Rolling / Open Deadlines

periodic
Pure Ocean Challenges — Call for Projects · Pure Ocean · Annual, September 1 – October 1 (Phase 1); Phase 2 by invitation (October 20 – November 23)
For NGOs For Researchers Foundation Grant Global Mediterranean Biodiversity Climate Marine Conservation Plastic Waste Pollution Research
periodic
Prince Albert II of Monaco Foundation — Call for Projects · Prince Albert II of Monaco Foundation · Annual, typically autumn (2025 call closed; next call expected autumn 2026)
For NGOs Foundation Grant Global Mediterranean Biodiversity Climate Coastal Protection Coral Reefs Marine Conservation Marine Protected Areas Plastic Waste Pollution
periodic
The MedFund - Fondation Prince Albert II de Monaco · The MedFund · Annual; Call 2025 Phase 1 deadline was 15 May 2025, Phase 2 deadline was 13 July 2025
Foundation Grant Mediterranean Biodiversity Marine Conservation Marine Protected Areas
Rolling
[PDF] INITIATIVES & PROJECTS - Fondation Prince Albert II de Monaco · Prince Albert II of Monaco Foundation (Fondation Prince Albert II de Monaco) · Rolling / annual calls per initiative (e.g., DIMFE annual call; Polar Initiative call launched June 2024; Pelagos Initiative call 2024). No single universal deadline.
For NGOs For Researchers For Startups Foundation Blended Finance Grant Prize Technical Assistance Africa Arctic Global Mediterranean Southeast Asia Biodiversity Blue Economy Climate Coastal Protection Coral Reefs Fisheries Marine Conservation Marine Protected Areas Plastic Waste Pollution Research
Rolling
Adessium Foundation - Nature and Living Environment Programme · Adessium Foundation · Rolling basis (invitation-only; no open calls)
For NGOs Foundation Grant Mediterranean Biodiversity Coastal Protection Fisheries Marine Conservation Marine Protected Areas Pollution
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