89 ocean networks and coalitions listed across 27 countries and 12 focus areas.
· Generalist, Education/Policy
BlueActionMatch is an online community connecting people and organisations working for sustainable ocean, seas and waters across Europe and beyond. Managed by the SUBMARINER Network within the EU Mission Restore our Ocean and Waters by 2030, it hosts thematic working groups, mentorship and collaborator matching.
Indonesia · Corals/Biodiversity, Education/Policy, Data/Tech, Communities/Tourism, Generalist
ReShark is an international conservation collective dedicated to rebuilding threatened shark and ray populations through rewilding, conservation translocations, and species recovery programs. It connects aquariums, NGOs, governments, academics, and local communities to restore healthy and self-sustaining marine populations.
Belgium · Energy/Maritime, Carbon/Climate
The Maritime Industry Decarbonisation Council is a Belgian think tank that brings the maritime value chain together to work on decarbonising shipping through sustainable alternative fuels and energy efficiency. It runs industry projects on ammonia, methanol, hydrogen and wind propulsion.
Indonesia · Seaweeds/Algae, Education/Policy, Generalist
ASTRULI is an Indonesian seaweed processors association that connects buyers with member suppliers of agar and carrageenan and promotes the national seaweed hydrocolloid industry. It organizes industry events, supports market access, and highlights quality, traceability, sustainability, and international standards.
USA · Corals/Biodiversity, Education/Policy, Generalist
High Seas Alliance is a global partnership of non-governmental organizations working to protect the high seas and strengthen ocean governance beyond national jurisdiction. It advocates for the ratification and implementation of the High Seas Treaty and the establishment of marine protected areas.
Australia · Waste/Pollution, Education/Policy
The Marina Industries Association is the peak body for marina facilities in Australia and runs the International Clean Marina Program and the Fish Friendly Marinas Program. Both are voluntary accreditation schemes that push marinas towards environmental compliance and best management practices.
Switzerland · Waste/Pollution, Education/Policy
The Global Plastic Action Partnership, launched by the World Economic Forum in 2018 to tackle plastic waste from source to sea, builds National Plastic Action Partnerships in coastal countries. It reached 25 national partnerships by 2025, making it the world's largest multistakeholder initiative on plastic pollution, covering more than 1.5 billion people.
USA · Data/Tech, Education/Policy
SECOORA is the Southeast Coastal Ocean Observing Regional Association, providing real-time and historical coastal ocean data for resilience, safety and a thriving blue economy in the southeast United States. It runs buoys, coastal stations, gliders, high frequency radar, water level monitoring and the WebCOOS camera network as part of the US Integrated Ocean Observing System.