Upcoming Deadlines
Source
EU
Federal (DE)
Schleswig-Holstein
Mecklenburg-Vorpommern
Lower Saxony
Foundation
Private
US Foundation
UK
Nordic
UN / Multilateral
Corporate
Impact Investor
Philanthropic Network
International
Topic
Aquaculture
Biodiversity
Blue Economy
Capacity Building
Circular Economy
Climate
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Coral Reefs
Education
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Marine Protected Areas
Plastic Waste
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Research
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Waste Management
Mechanism
Accelerator
Blended Finance
Grant
Investment
Loan / Concessional Finance
Prize
Technical Assistance
13 fixed deadlines, 86 rolling/open
May 2026
25.05.
6d left
Illuminating Climate Solutions (NGS + The Climate Pledge)
· National Geographic Society
· Up to $100,000. Recommended: up to $20,000 for applicants with five or fewer years of experience. Funds may be used over two years.
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)
29.05.
10d left
BlueActionBANOS - Baltic and North Sea Ocean Restoration
· BlueActionBANOS
· EUR 200,000 to EUR 2 million per action. Maximum EUR 500,000 to any single entity within a consortium.
29.05.
10d left
Funding opportunities - BlueActionBANOS
· BlueActionBANOS
· Community-Led Actions: grants of EUR 200,000 to EUR 2,000,000 per consortium (max EUR 500,000 per entity). Transition Agendas: up to EUR 100,000 per award.
29.05.
10d left
BlueActionBANOS Open Call for Community-Led Actions
· BlueActionBANOS
· Grants of EUR 200,000 to EUR 2,000,000 per consortium. Maximum EUR 500,000 per single entity within the consortium. 100% funding rate. Paid as lump sum with stages and deliverables defined in an Individual Integrated Project Plan.
29.05.
10d left
BlueActionBANOS — Open Call: Community-Led Actions
· BlueActionBANOS
· EUR 200,000 to EUR 2,000,000 per Community-Led Action; maximum EUR 500,000 to any single entity within a consortium
31.05.
12d left
Illuminating the Mekong River Basin
· National Geographic Society
· Up to $20,000. Funds usable over two years.
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).
June 2026
17.06.
29d left
EU Blue Partnership - Transitioning Blue Economy Sectors
· Sustainable Blue Economy Partnership (SBEP)
· Total estimated budget approx. EUR 43.5 million pooled across 38 national/regional funding organisations and co-funded by the EU (Horizon Europe). Individual project budgets depend on national regulations and participating funders.
30.06.
42d
Aage V. Jensen Nature Foundation - Marine Ecosystem Conservation
· Aage V. Jensen Naturfond
· DKK 4-7 million over 2-5 years (approx. EUR 540,000 to EUR 940,000 total). Funds PhD positions (including tuition), postdocs, and up to 10% of permanent scientific staff salaries.
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
31.07.
73d
BMUV Nature Conservation Association Funding (Verbändeförderung Naturschutz)
· Federal Ministry for the Environment, Climate Protection, Nature Conservation and Nuclear Safety (BMUV)
· EUR 4.45 million per year distributed across eligible associations and projects
August 2026
01.08.
74d
Rolex-Explorers Club Grant
· The Explorers Club / Rolex
· Historically, awards have been given in the amount of $10,000 USD.
Rolling / Open Deadlines
Rolling
LIFE Programme Multi-Annual Work Programme 2025-2027 Overview
· European Commission – LIFE Programme
· 2025–2027 (rolling calls; specific call deadlines published on EU Funding & Tenders Portal)
Rolling
Schwab Foundation for Social Entrepreneurship
· Schwab Foundation for Social Entrepreneurship
· 2026 awards already announced; 2027 cycle TBD
Rolling
Sustainable Blue Economy Partnership (SBEP)
· Sustainable Blue Economy Partnership (SBEP)
· 3rd Joint Transnational Call: launched September 2025; Rolling TA Call: open February 20, 2026 to February 29, 2028 (evaluated every 4 months)
periodic
Interreg Atlantic Area Programme 2021-2027
· Interreg Atlantic Area
· 3rd call for projects: recently concluded with approved projects; upcoming calls TBD
periodic
Interreg South Baltic Programme - Calls for Proposals
· Interreg South Baltic Programme (EU / Joint Secretariat)
· 6th call for proposals: 16 September – 4 November 2026 (Measures 1.1 and 4.1 only). 4th Small-scale project call: same window (Measure 4.1, EUR 320K ERDF indicative). Note: Measure 2.3 (circular/resource efficiency) and Measure 2.2 (water) not included in 6th call.
Rolling
Spain — Biodiversity Foundation - Terra Viva Grants
· Fundación Biodiversidad (Biodiversity Foundation) — Spain
· Annual call for proposals; specific deadline published per round
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)
Rolling
LIFE Programme 2025-2027 Multi-Annual Work Programme (Official Document)
· European Commission / CINEA (European Climate, Infrastructure and Environment Executive Agency)
· Annual calls throughout 2025, 2026, and 2027
Rolling
Wipro Earthian Awards - Sustainability Education Program
· Wipro Foundation (Wipro Limited)
· Annual program; the 2025 cycle has closed. Next round timing not specified.
periodic
OCEAN Grants Programme — Community Grants and Partnership Grants (UK Blue Planet Fund)
· OCEAN Grants Programme (UK Blue Planet Fund / Defra)
· Annual — Round 2 closed February/March 2025; Round 3 expected to open late 2025 or early 2026
periodic
Pure Ocean Challenges — Call for Projects
· Pure Ocean
· Annual, September 1 – October 1 (Phase 1); Phase 2 by invitation (October 20 – November 23)
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)
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)
periodic
Baltic Sea Action Plan (BSAP) Fund - Nefco
· Nefco / Nordic Investment Bank (NIB) — Baltic Sea Action Plan Fund
· Annual, next call expected early 2026 (2025 round closed April 18, 2025; results announced February 2026)
periodic
Baltic Sea Action Plan Fund
· Nordic Environment Finance Corporation (NEFCO)
· Annual, typically February-April (2025 round deadline was 18 April 2025; 2026 round expected similar period)
periodic
UEFA Foundation for Children – Annual Call for Projects
· UEFA Foundation for Children
· Annual, typically June-July
periodic
Miljøstøtte til Arktis (DANCEA) — Danish Arctic Environmental Support
· Miljøstyrelsen (Danish Environmental Protection Agency)
· Annual, typically June-September (2025 round: 24 September 2025)
periodic
TotalEnergies Foundation — Marine & Coastal Environment Programme
· TotalEnergies Foundation
· Annual, typically Q4 (2024 edition launched; no 2025/2026 open round announced)
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)
periodic
periodic
NATO Science for Peace and Security Programme — Annual Calls for Proposals
· NATO Science for Peace and Security Programme
· Annual, typically spring/autumn calls; no active call as of April 2026
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
periodic
Björn Carlson Baltic Sea Prize (BalticSea2020)
· Björn Carlsons Östersjöstiftelse (BalticSea2020)
· Annual; nomination period not specified on website
periodic
Interreg North Sea Programme 2021-2027
· Interreg North Sea Programme
· Call 6 is currently open (deadline not specified on page; rolling within Call 6 period)
Rolling
King Baudouin Foundation - EU Missions Horizon Europe: Restore our Ocean and Waters
· King Baudouin Foundation
· Call-specific; rolling calls published at kbs-frb.be
Rolling
Interreg Baltic Sea Region Programme 2021-2027
· Interreg Baltic Sea Region Programme 2021-2027 (IB.SH / EU Cohesion Policy)
· Future calls expected 2026-2027; second call for project platforms closed November 2025
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
periodic
BINGO! Environmental Foundation Lower Saxony
· Niedersaechsische Bingo-Umweltstiftung (Lower Saxony BINGO! Environmental Foundation)
· Periodic
periodic
Interreg Aurora Programme 2021-2027 (formerly Northern Periphery and Arctic)
· Interreg Aurora
· Periodic calls for applications; check interregaurora.eu/projects/calls-for-applications/ for open calls
periodic
Interreg Baltic Sea Region 2021-2027
· Interreg Baltic Sea Region Programme
· Periodic calls; the programme runs 2021-2027. Call-specific deadlines announced by Managing Authority/Joint Secretariat. Check interreg-baltic.eu/gateway/ for current calls.
periodic
KfW Blue Action Fund (BAF) – Marine Conservation Grants for NGOs
· Blue Action Fund / KfW Development Bank
· Periodic — open calls published on rolling basis; check blueactionfund.org for current calls
periodic
Aage V. Jensen Naturfond – Nature Conservation Grants
· Aage V. Jensen Naturfond
· Periodic — three application rounds per year
periodic
Aage V. Jensens Fond – General Grants (Nature, Greenland, Faroe Islands)
· Aage V. Jensens Fond
· Periodic — three board meetings per year to process applications
periodic
Deutsche Postcode Lotterie - Environmental Project Funding
· Deutsche Postcode Lotterie
· Periodic, multiple rounds per year
periodic
Aage V. Jensen Naturfond – Grant Programme (3x/year)
· Aage V. Jensen Naturfond
· Periodic, three times per year
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.
Rolling
European Science Foundation — Blue Action (Atlantic-Arctic Ocean Research)
· European Science Foundation
· Rolling / multiple calls; project period September 2025 - August 2029
Rolling
Marine Nature Conservation Fund (Meeresnaturschutzfonds)
· Deutsche Bundesstiftung Umwelt (DBU)
· Rolling basis
Rolling
Federal Programme for Biological Diversity (Bundesprogramm Biologische Vielfalt)
· Bundesministerium für Umwelt, Naturschutz, nukleare Sicherheit und Verbraucherschutz (BMUV/BMUKN)
· Rolling basis
Rolling
Wilderness Fund (Wildnisfonds)
· Bundesministerium für Umwelt, Naturschutz, nukleare Sicherheit und Verbraucherschutz (BMUV/BMUKN)
· Rolling basis
Rolling
Large-Scale Nature Conservation Projects (chance.natur)
· Bundesamt für Naturschutz (BfN) / Bundesministerium für Umwelt, Naturschutz und nukleare Sicherheit (BMUV)
· Rolling basis
Rolling
European Maritime, Fisheries and Aquaculture Fund (EMFAF)
· European Commission / Directorate-General for Maritime Affairs and Fisheries (DG MARE)
· Rolling basis
Rolling
Rolling
DBU General Project Funding (Projektfoerderung)
· Deutsche Bundesstiftung Umwelt (DBU)
· Rolling basis
Rolling
Rolling
Rolling
Esmee Fairbairn Foundation - Natural World / Marine Grants
· Esmee Fairbairn Foundation
· Rolling basis
Rolling
UKRI / Natural Environment Research Council (NERC) - Marine Programs
· UK Research and Innovation / Natural Environment Research Council (NERC)
· Rolling basis
Rolling
Rolling
Rolling
Greenpeace Environmental Foundation (Umweltstiftung Greenpeace) - Marine Conservation Grants
· Umweltstiftung Greenpeace
· Rolling basis
Rolling
DBU Marine Nature Conservation Fund - North and Baltic Sea Protection
· Deutsche Bundesstiftung Umwelt
· Rolling basis
Rolling
Rolling
Baltic Sea Conservation Foundation (BaltCF)
· Baltic Sea Conservation Foundation (BaltCF)
· Rolling basis
Rolling
Rolling
Rolling
Rolling
Global Fund for Coral Reefs - Fondation Prince Albert II de Monaco
· Global Fund for Coral Reefs (GFCR)
· Rolling basis
Rolling
Rolling
GCF Simplified Approval Process (SAP) — via Accredited Entity Partner
· Green Climate Fund
· Rolling basis
Rolling
Rolling
Aage V. Jensen Charity Foundation — Nature Conservation
· Aage V. Jensen Charity Foundation
· Rolling basis
Rolling
Rolling
Rolling
Rolling
Rolling
Rolling
Rolling
The Ocean Foundation Grantmaking
· The Ocean Foundation
· Rolling basis (Letters of Inquiry reviewed quarterly; full proposals by invitation only)
periodic
Grand Solutions – Innovation Fund Denmark
· Innovation Fund Denmark
· Rolling basis (calls published periodically under the Grand Solutions programme)
Rolling
Adessium Foundation - Nature and Living Environment Programme
· Adessium Foundation
· Rolling basis (invitation-only; no open calls)
Rolling
DOEN Foundation Funding Opportunities
· DOEN Foundation (Stichting DOEN)
· Rolling basis - applications accepted year-round via online portal
Rolling
European Maritime, Fisheries and Aquaculture Fund (EMFAF)
· European Commission - Directorate-General for Maritime Affairs and Fisheries
· Rolling basis - managed through national operational programmes; CINEA direct management calls announced periodically
Rolling
Bezos Earth Fund – Conserving & Restoring Nature Program
· Bezos Earth Fund
· Rolling basis — no open call; grants awarded on invite-only or strategic partnership basis
Rolling
EEA and Norway Grants 2014-2021 / 2021-2028
· EEA Grants / Norway Grants
· Rolling — each beneficiary country has its own programme timeline and call schedule
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)
periodic
Interreg Baltic Sea Region Programme 2021-2027
· Interreg Baltic Sea Region
· Rolling, with periodic calls for project proposals
Rolling
Endangered Landscapes and Seascapes Programme (ELSP)
· Endangered Landscapes & Seascapes Programme (ELSP) / Arcadia Fund
· Rolling; open calls publicised when opened — no permanent deadline stated
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.
periodic
Green Program for Transition of Fisheries and Aquaculture (Denmark)
· Styrelsen for Fødevarer, Landbrug og Fiskeri (Danish Agency for Food, Agriculture and Fisheries)
· Unknown
periodic
periodic
Adaptation Fund Climate Innovation Accelerator (AFCIA)
· United Nations Development Programme (UNDP) / Adaptation Fund / European Union
· Unknown
periodic
RAIN Challenge – Resilient Agriculture Innovations for Nature (East Africa)
· Munich Re Foundation
· Unknown
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.
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.
periodic
King Baudouin Foundation - Climate, Environment and Biodiversity Program
· King Baudouin Foundation
· Varies by call; approximately 150-180 calls published annually