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, 33 rolling/open

May 2026

25.05. 6d left
Blended Finance Accelerator for Fund Managers (A4FM) – Convergence · Convergence Blended Finance · Stage 1 (Scoping): up to CAD $260,000 (~USD 190,000). Stage 2 (Proof-of-Concept/Pilot): up to CAD $500,000 (~USD 365,000). Funding in Canadian Dollars. Stage 1 grants are non-repayable; Stage 2+ grants are conditionally repayable. Grantees must contribute minimum 10% of total cost.
Impact Investor Blended Finance Grant Africa Global Southeast Asia Blue Economy Climate
31.05. 12d left
Illuminating the Mekong River Basin · National Geographic Society · Up to $20,000. Funds usable over two years.
Foundation Grant Southeast Asia Biodiversity Fisheries Marine Conservation Research

June 2026

01.06. 13d left
Convergence — Indo-Pacific NGO Blended Finance Accelerator (DFAT) · Convergence Blended Finance / Australian DFAT · Stage 1 (Scoping/Feasibility): up to AUD 300,000 (~USD 200,000). Stage 2 (Proof-of-Concept/Pilot): up to AUD 840,000 (~USD 550,000). Stage 3 (Scale-up/Expansion): amount not publicly specified. Disbursed in AUD.
For NGOs Multilateral Accelerator Blended Finance Grant Global Southeast Asia Capacity Building Climate

July 2026

01.07. 43d
Darwin Initiative · Darwin Initiative · Innovation: £10,000–£200,000; Capability & Capacity: £50,000–£200,000; Main: £100,000–£800,000; Extra: £800,000–£5,000,000
For NGOs Government Grant Africa Global Southeast Asia Biodiversity Capacity Building Marine Conservation

Rolling / Open Deadlines

periodic
Denmark Ministry of Foreign Affairs Civil Society Support · Danish Ministry of Foreign Affairs (Danida) · Annual call cycles for each scheme; development research calls issued annually; embassy grants vary by mission
For NGOs Government Grant Africa India Southeast Asia Capacity Building Climate Waste Management
periodic
Blue Planet Fund (Defra) · UK Government - Department for Environment, Food & Rural Affairs (Defra) / Foreign, Commonwealth & Development Office · Annual call; next round expected January 2026 (Round 2 grantees announced, Round 3 not yet open as of May 2026)
For NGOs Government Grant Africa Global Southeast Asia Biodiversity Capacity Building Coastal Protection Marine Conservation Pollution
periodic
Whitley Fund for Nature (Whitley Awards) · Whitley Fund for Nature · Annual, applications typically open in autumn for the following spring ceremony; 2026 round now closed (ceremony held 29 April 2026)
For NGOs Foundation Grant Prize Africa Global India Southeast Asia Biodiversity Coastal Protection Fisheries Marine Conservation
periodic
FCDO Blue Planet Fund — OCEAN Grants Programme · UK Foreign, Commonwealth & Development Office (FCDO) / Department for Environment, Food & Rural Affairs (Defra) · Annual, next call due January 2025 (per November 2024 update)
For NGOs Government Grant Africa Global Southeast Asia Biodiversity Circular Economy Coastal Protection Fisheries Marine Conservation Marine Protected Areas Plastic Waste Pollution Waste Management
periodic
UNDP Partnership for Preventing Riverine Plastic Pollution - Indonesia · UNDP (United Nations Development Programme) · March 2026 round passed; next round TBD
For Communities / Cooperatives For NGOs Multilateral Grant Southeast Asia Capacity Building Plastic Waste Pollution Waste Management
Rolling
Norwegian Development Programme to Reduce Plastic Pollution and Marine Litter · Norad (Norwegian Agency for Development Cooperation) · Ongoing
For NGOs Government Grant Africa Global India Southeast Asia Capacity Building Circular Economy Marine Conservation Plastic Waste Pollution Waste Management
Rolling
Norad Marine Litter Programme — Stage 2 (Invitation Only) · Norad · Ongoing (no current deadline — open to invited applicants on a rolling basis)
For NGOs Government Grant Africa Global Southeast Asia Capacity Building Circular Economy Marine Conservation Plastic Waste Pollution Waste Management
Rolling
Indonesia Mangroves for Coastal Resilience Project (P178009) · World Bank Group (IBRD) · Ongoing; procurement opportunities advertised through the World Bank procurement portal and Indonesian Government systems
Multilateral Loan / Concessional Finance Southeast Asia Biodiversity Coastal Protection Marine Conservation
Rolling
Indonesia Improvement of Solid Waste Management to Support Regional and Metropolitan Cities (P157245) · World Bank Group (IBRD) · Ongoing; procurement plan active as of May 2026
Multilateral Loan / Concessional Finance Southeast Asia Circular Economy Pollution Waste Management
periodic
ZUG gGmbH Grant Programme against Marine Litter · Zukunft – Umwelt – Gesellschaft (ZUG) gGmbH · Periodic, typically every 2-3 years (calls in 2020, 2021, 2022, 2025); 2025 call is closed; next call date not yet announced
For NGOs Government Grant Africa Global Southeast Asia Capacity Building Circular Economy Marine Conservation Plastic Waste Pollution Waste Management
periodic
Danida Green Business Partnerships (DGBP) - New Programme 2026 · Danida (Danish Ministry of Foreign Affairs) · Q2/Q3 2026 (expected launch of new programme application round; historic DGBP round closed October 2025)
Government Grant Africa Global India Southeast Asia Capacity Building Circular Economy Climate
Rolling
Convergence - Global Network for Blended Finance · Convergence Blended Finance · Rolling (grant portfolio continuously updated; multiple cohorts per year based on published grants)
For NGOs Impact Investor Blended Finance Grant Africa Global Southeast Asia Blue Economy Circular Economy Climate
Rolling
Norwegian Development Programme to Combat Marine Litter and Microplastics (Norad/MFA) · Norad - Norwegian Agency for Development Cooperation · Rolling - depends on specific open call
Government Grant Africa Global Southeast Asia Capacity Building Marine Conservation Plastic Waste Pollution Waste Management
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
Adaptation Fund - Nature-Based Solutions for Coastal Adaptation · Adaptation Fund · Rolling basis
Multilateral Grant Africa Global India Southeast Asia Biodiversity Climate Coastal Protection Marine Conservation
Rolling
Grant-making - Oak Foundation · Oak Foundation · Rolling basis
Foundation Grant Africa Global Southeast Asia Biodiversity Climate Fisheries Marine Conservation
Rolling
Global Fund for Coral Reefs - Fondation Prince Albert II de Monaco · Global Fund for Coral Reefs (GFCR) · Rolling basis
Foundation Multilateral Blended Finance Grant Investment Africa Global Southeast Asia Biodiversity Blue Economy Coral Reefs Marine Conservation Marine Protected Areas
Rolling
Danish Climate Investment Fund (DCIF) - Impact Fund Denmark · Impact Fund Denmark · Rolling basis
Government Investment Africa India Southeast Asia Climate Waste Management
Rolling
Alliance to End Plastic Waste (AEPW) — Partnership Programme · Alliance to End Plastic Waste (AEPW) · Rolling basis
For NGOs Corporate Blended Finance Grant Africa Global India Southeast Asia Circular Economy Plastic Waste Pollution Recycling & Upcycling Waste Management
Rolling
Circulate Capital Ocean Fund (CCOF) · Circulate Capital · Rolling basis
Impact Investor Investment India Southeast Asia Circular Economy Plastic Waste Recycling & Upcycling Waste Management
Rolling
Aage V. Jensen Charity Foundation — Nature Conservation · Aage V. Jensen Charity Foundation · Rolling basis
For NGOs Foundation Grant Africa Arctic Global Southeast Asia Biodiversity Capacity Building Coastal Protection Marine Conservation Marine Protected Areas
Rolling
Asia-Pacific Climate Finance Fund · Asian Development Bank · Rolling basis
Multilateral Blended Finance India Southeast Asia Blue Economy Climate
Rolling
Community Resilience Financing Partnership Facility (CRFPF) · Asian Development Bank · Rolling basis
Multilateral Grant Technical Assistance India Southeast Asia Capacity Building Climate
Rolling
UK PACT - Partnering for Accelerated Climate Transitions · UK PACT (UK Government, FCDO / DESNZ) · Rolling basis (country funds have individual open calls)
Government Grant Technical Assistance Africa Global India Southeast Asia Blue Economy Capacity Building Climate
periodic
OCEAN Grant Programme UK - Marine Community Grants · UK Blue Planet Fund / OCEAN Grants Programme (administered by NIRAS) · Round 2 application window is now closed. Future rounds expected; sign up to mailing list for updates. Programme runs until 2029.
For NGOs Government Grant Africa Global India Southeast Asia Biodiversity Coastal Protection Fisheries Marine Conservation Plastic Waste Pollution
periodic
Civil Society Fund · CISU - Civil Society in Development · Small/Large Project: January 28, 2026 and August 26, 2026; Small Programme: March 4, 2026 and September 9, 2026; Co-financing: Ongoing/rolling
For NGOs Government Grant Africa Global Southeast Asia Capacity Building Circular Economy Waste Management
periodic
SWITCH-Asia — Sustainable Consumption and Production in Asia-Pacific · European Commission Directorate-General for International Partnerships (SWITCH-Asia) · Unknown
Government Grant India Southeast Asia Capacity Building Circular Economy Plastic Waste Recycling & Upcycling Waste Management
periodic
Convergence Indo-Pacific NGO Blended Finance Accelerator · Convergence Blended Finance / Australian Department of Foreign Affairs and Trade (DFAT) · Unknown
For NGOs Government Accelerator Blended Finance Grant Southeast Asia Blue Economy Capacity Building Climate
periodic
Adaptation Fund Climate Innovation Accelerator (AFCIA) · United Nations Development Programme (UNDP) / Adaptation Fund / European Union · Unknown
For Communities / Cooperatives For NGOs Multilateral Accelerator Grant Africa Global Southeast Asia Biodiversity Blue Economy Capacity Building Climate Coastal Protection Fisheries Marine Conservation
periodic
Catalytic Climate Finance Facility (CCFacility) – CPI & Convergence · Climate Policy Initiative (CPI) and Convergence Blended Finance · Unknown
Impact Investor Blended Finance Grant Africa Global Southeast Asia Blue Economy Climate Marine Conservation
periodic
Blue Action Fund (BMZ/KfW) - Marine Protected Areas Funding · Blue Action Fund · Upcoming Call for Proposals planned Q2/2026 for Indonesia, Philippines, Vietnam, and India (mangroves, blue carbon markets, 30x30). No current open call.
For NGOs Government Grant Africa India Southeast Asia Biodiversity Blue Economy Fisheries Marine Conservation Marine Protected Areas
periodic
Blue Action Fund Grant Programme · Blue Action Fund · Upcoming call planned Q2/2026 (Mangroves, Blue Carbon Markets and 30x30 in Indonesia, Philippines, Vietnam and India). No currently open call as of May 2026.
For NGOs Foundation Grant Africa India Southeast Asia Biodiversity Coastal Protection Marine Conservation Marine Protected Areas
periodic
Convergence Blended Finance — Accelerator Design Grants · Convergence Blended Finance · Varies by initiative window. Indo-Pacific NGO Blended Finance Accelerator: second call launching June 1, 2026. A4FM Fund Managers: May 25, 2026. Asia Climate Solutions: date TBA. Catalytic Climate Finance Facility: date TBA.
For NGOs Impact Investor Blended Finance Grant Africa Global Southeast Asia Capacity Building Climate