134 ocean nonprofits and NGOs working on corals & biodiversity across 29 countries.
Belize · Corals/Biodiversity, Waste/Pollution, Education/Policy, Data/Tech
ECOMAR is a marine conservation organization in Belize focused on the Belize Barrier Reef Reserve System through research, outreach, volunteer monitoring, and education. It coordinates programs on coral bleaching, sea turtles, lionfish management, marine mammal sightings, and field-based research.
France · Corals/Biodiversity, Communities/Tourism, Education/Policy, Data/Tech
Coral Guardian is a French nonprofit dedicated to protecting and restoring coral ecosystems through local conservation action, scientific research, and public awareness. It works with local communities on coral restoration projects and marine conservation initiatives.
USA · Corals/Biodiversity, Mangroves/Coastal, Aquaculture/Fisheries, Seaweeds/Algae, Waste/Pollution, Carbon/Climate, Data/Tech, Communities/Tourism, Education/Policy, Generalist
The Ocean Foundation is a nonprofit community foundation dedicated to ocean health, marine conservation, and support for coastal communities worldwide. It provides grantmaking, fiscal sponsorship, capacity building, research, policy engagement, and its own ocean-focused initiatives.
Netherlands · Waste/Pollution, Corals/Biodiversity, Education/Policy
Healthy Seas is a nonprofit foundation that removes marine litter, especially ghost nets, and works on prevention, education, and circular solutions for recovered materials. It protects marine ecosystems through underwater and coastal clean-ups, public awareness, and partnerships with fishers, businesses, and recyclers.
United Kingdom · Waste/Pollution, Carbon/Climate, Corals/Biodiversity, Aquaculture/Fisheries, Education/Policy, Generalist
ClientEarth is a nonprofit environmental law organisation that uses legal action, policy advocacy and expert training to protect nature, tackle climate change and stop pollution. It works across Europe, Asia and the USA with partners, citizens and decision-makers to drive systemic environmental change.
France · Corals/Biodiversity, Mangroves/Coastal, Aquaculture/Fisheries, Carbon/Climate, Communities/Tourism, Education/Policy, Generalist
Blue Alliance is a nonprofit organization focused on marine protected area management and sustainable blue economy development. It works on coral reef regeneration, coastal livelihoods, community-based aquaculture, sustainable fisheries, ecotourism, and blue carbon.
Mozambique · Corals/Biodiversity, Waste/Pollution, Communities/Tourism, Education/Policy
Marine Megafauna Foundation is a marine conservation nonprofit focused on protecting endangered ocean giants and the habitats they depend on. It combines research, conservation action, and community education across multiple coastal regions.
USA · Corals/Biodiversity, Mangroves/Coastal, Waste/Pollution, Carbon/Climate, Education/Policy, Generalist
Only One is a nonprofit advocacy and impact platform focused on ocean and climate action. It runs public campaigns, movement-building, strategic communications, and member-funded conservation projects such as mangrove restoration, coral planting, and plastic removal.