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, 12 rolling/open

March 2026

31.03. 11d left
Hatch Blue AquaScale BIM Innovation Studio+ · Hatch Blue / Bord Iascaigh Mhara (BIM) · No cost and no equity taken. No direct financial investment provided; access to Hatch Blue investment network available post-program.
For Startups Impact Investor Accelerator Technical Assistance Aquaculture Blue Economy

April 2026

15.04. 26d left
CirculaRise Accelerator (Yunus Environment Hub) · Yunus Environment Hub · Fully funded accelerator program (no equity taken, no cash grant specified)
For Startups Foundation Accelerator Technical Assistance Capacity Building Circular Economy Recycling & Upcycling Waste Management
17.04. 28d left
OceanHub Africa Acceleration Program · OceanHub Africa · Interest-free loans of up to $30,000 USD via Blue Loop Fund (select Phase 2 participants only); additional in-kind support includes up to $75k AWS credits and up to $50k in legal/business advisory services.
For Startups Impact Investor Accelerator Loan / Concessional Finance Technical Assistance Africa Aquaculture Blue Economy Circular Economy Climate Fisheries Marine Conservation Plastic Waste 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
Impact Fund Denmark - Green Energy and Infrastructure Sector · Impact Fund Denmark (IFU) · Rolling
For Startups Government Impact Investor Blended Finance Investment Loan / Concessional Finance Africa Global India Southeast Asia Blue Economy Circular Economy Climate Waste Management
Rolling
Closed Loop Partners - Circular Plastics Strategy · Closed Loop Partners · Rolling
For NGOs Impact Investor Investment Loan / Concessional Finance Circular Economy Plastic Waste Recycling & Upcycling Waste Management
Rolling
BlueInvest - Maritime Forum - European Union · European Commission – Directorate-General for Maritime Affairs and Fisheries · Rolling / ongoing community platform; BlueInvest Day 2026: March 2026
For Startups Government Technical Assistance Global Aquaculture Blue Economy Capacity Building Fisheries Marine Conservation
Rolling
EU BlueInvest — European Commission Blue Economy Investment Platform · European Commission / Directorate-General for Maritime Affairs and Fisheries (DG MARE) · Rolling basis
For Startups Government Accelerator Investment Technical Assistance Aquaculture Blue Economy Marine Conservation
Rolling
TNC NatureVest Ocean Protection · The Nature Conservancy (TNC) — NatureVest · Rolling — NatureVest operates on a deal-by-deal basis, not via open calls
Impact Investor Blended Finance Investment Global Aquaculture Blue Economy Fisheries Marine Conservation
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
Rolling
Ocean 14 Capital - Blue Economy Private Equity · Ocean 14 Capital (private equity fund, blue economy) · Rolling; pitch to portfolio team via ocean14capital.com
Corporate Global Circular Economy Marine Conservation Plastic Waste Recycling & Upcycling
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
Rolling
Circular Economy Accelerator (CEA) by Fetola · Fetola (in partnership with Nedbank) · Waiting list open (no fixed deadline for next cohort)
For Startups Corporate Foundation Accelerator Technical Assistance Africa Capacity Building Circular Economy Waste Management