19 of the most inspiring ocean conservation charities to support today | Rare

Coral reefs rank among Earth’s most valuable ecosystems. They help feed families, sustain jobs, and protect shorelines for more than 500 million people worldwide, supporting fisheries, tourism, and natural storm buffers. But reefs face growing pressure from warming oceans, overfishing, pollution, and other harmful human behaviors tied to climate change and rapid development.

Reefs can recover when communities and governments reduce stress on these ecosystems and commit to long-term, science-based management. Many of the most durable efforts also track measurable outcomes, including changes in how people fish, farm, build, and manage waste. Research also suggests that projects designed with local stakeholders often deliver stronger ecological results and more lasting benefits.

This guide highlights coral reef conservation charities working across many approaches, including efforts that support local leadership, strengthen livelihoods, and help communities adapt to climate impacts while protecting the ocean resources they rely on.

Key takeaways

• Oceans are under growing pressure from climate-driven warming, overfishing, pollution, and habitat loss, threatening marine biodiversity, food security, and coastal livelihoods worldwide.
• Individuals can help advance ocean conservation by supporting trusted charities, engaging as volunteers or partners, and adopting everyday habits that reduce pressure on marine ecosystems.
• Conservation efforts are most effective when they are community-led and grounded in science, supporting behavior change among the people who depend on ocean ecosystems every day.

The critical role ocean conservation charities play

Ocean conservation charities are more essential than ever as the ocean faces mounting pressure from overfishing, pollution, habitat loss, and climate-driven warming. The ocean regulates climate, supports food security, and sustains billions of people, yet many marine ecosystems are under increasing stress, with some approaching ecological tipping points. 

Coral reefs alone support 25% of all marine life, and today they are experiencing a widespread global bleaching event driven by rising ocean temperatures. While these challenges are severe, research and on-the-ground experience show that timely, well-designed conservation can reduce pressure on ecosystems and help reefs and coastal communities adapt.

Ocean conservation charities address these threats in different ways, from habitat protection and fisheries management to policy advocacy and pollution reduction. Some organizations focus on scientific monitoring or enforcement, while others focus on social and economic factors that influence how people interact with marine resources over time.

Evidence increasingly shows that community-managed coastal areas can deliver durable outcomes when conservation aligns with local priorities and livelihoods. In parallel, charities can sometimes play an important role in connecting community-led success to broader policy efforts, including global forums such as the 2025 UN Ocean Conference, and national initiatives that elevate local voices, from the Amazon Coast to Palau. 

Together, these varied approaches help protect marine biodiversity while supporting the people who depend on healthy oceans.

Impactful ocean conservation charities to support 

Ocean conservation succeeds when communities, science, and policy work together. Here are some inspiring ocean conservation charities, each contributing in distinct ways to healthier oceans and more resilient coastal communities.

1. Rare

Mission: Rare, grounded in behavioral and social science, partners with local leaders to support community-led fisheries management, reduce overfishing, and strengthen governance while sustaining livelihoods and climate resilience.

History: Founded in 1973, the nonprofit has advanced a people-centered approach to conservation rooted in community leadership. Over the past two decades, its ocean work has focused on supporting fishers and coastal leaders in regions most vulnerable to ecosystem decline, helping communities protect marine resources vital to food security and livelihoods.

Impact:

• • Benefits 3.2 million+ people through improved farming, fishing, and conservation practices
  • Enables 2,000+ communities across 9 countries to lead measurable, community-first conservation in high-priority ecosystems
  • Works with 166,000 coastal fishers and 5,000 farmers, alongside Indigenous Peoples and local leaders, to strengthen livelihoods and protect ecosystems
  • Boosts sustainable fisheries yields by up to 50% through behavior-centered management that improves food security and income
  • Restores 100,000+ hectares of forests and coastal habitats to strengthen biodiversity and climate resilience
  • Enables community-led conservation and co-management across 300,000+ km² of coastal ocean
  • Supports the conservation of 50,000+ km² of land in collaboration with local and global partners

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2. Blue Ventures

Mission: Blue Ventures restores tropical fisheries and promotes healthy oceans through locally-led marine conservation. They support communities in designing solutions, especially in vulnerable regions where coastal people depend on reefs and fisheries for income and food.

History: Founded in 2003, their focus was primarily on research and community work in Madagascar. Today, the nonprofit’s model is active across the Indian Ocean and beyond, based on a combination of local leadership, science, and innovation.

Impact:

• • Collaborates with coastal communities to create and establish locally managed marine areas
  • Uses monitoring and data to improve the governance of fisheries and promote evidence-based conservation
  • Supports local leadership with tools, training, and technical guidance
  • Combines community involvement and science to sustain healthy oceans and promote livelihoods

3. Coral Restoration Foundation

Mission: The Coral Restoration Foundation focuses on coral reef restoration and resilience. They cultivate and outplant strong corals, empowering communities to become the stewards of their resources.

History: Founded in 2007, this organization is a global leader in coral restoration. They’re pioneers in scalable reef restoration techniques that blend science and community participation.

Impact:

• • Manages a large coral nursery, cultivating resilient corals in-water to advance restoration
  • Outplants thousands of corals every year to affected sites, rebuilding structure and encouraging biodiversity
  • Partners with locals and volunteers to increase stewardship and promote awareness
  • Supports fisheries, tourism, and safe coasts through improving the health of coral reef species and habitats

4. Environmental Defense Fund (EDF)

Mission: The Environmental Defense Fund solves pressing environmental issues. They utilize science, policy expertise, and economics to develop solutions that help the ocean thrive, promote sustainable fisheries, and make coral reefs more resilient.

History: Founded in 1967, the organization focuses on energy, climate, and ecosystems. They have a proven track record of improving smarter fisheries management, habitat protection, and policy reforms that advance marine biodiversity.

Impact:

• • Partners with locals and governments to improve marine policies and regulations to preserve ocean habitats
  • Advances science-based fisheries management to lower overfishing and promote healthier fish populations
  • Develops scalable policies to empower sustainable seafood systems and decrease damage to coral reefs
  • Combines technical and economic knowledge to better ocean governance and promote resilience

5. Greenpeace

Mission: Greenpeace’s mission is rooted in ocean conservation through a variety of methods. They defend marine ecosystems, stop damaging practices, and advocate globally for stricter policies. The nonprofit also advances protection for coral reefs and biodiversity hotspots.

History: Since 1971, they have played a vital role in promoting ocean conservation globally. Greenpeace applies research, direct action, and public advocacy to increase awareness about pressing environmental ocean issues and push for systemic changes.

Impact:

• • Advocates for the design and implementation of marine protected areas
  • Works to stop destructive fishing habits
  • Promotes global awareness and encourage a political momentum for ocean management reforms 
  • Supports the mobilization of public and political will to decrease ocean overexploitation and pollution 

6. Lonely Whale Foundation

Mission: Lonely Whale works to prevent plastic waste from polluting the ocean, nurturing a world where communities, individuals, and businesses come together to ensure a healthy ocean. They act as an incubator for innovation and partnership across sectors to reduce plastic waste and promote ocean stewardship.

History: Founded in 2015, this organization began with grassroots campaigns, empowering everyday behavior change and a move away from single-use plastics. Today, they drive broader solutions that help put an end to plastic use and prevent it from ending up in the ocean.

Impact:

• • Organizes behavior change campaigns to raise awareness of stopping single-use plastics 
  • Leads multi-stakeholder initiatives, e.g., NextWave Plastics, joining brands and innovators to divert tonnes of ocean-bound plastics
  • Creates youth and community platforms, e.g., OH-Wake Media, to amplify the voice of young leaders and ocean advocates

7. Marine Megafauna Foundation

Mission: The Marine Megafauna Foundation works to preserve, understand, and restore at-risk marine species and their habitats. They focus on coral reefs, seagrass beds, and open oceans, using a combined approach of innovative science and community involvement.

History: Founded by marine biologists and conservationists in 2006, this organization implements research-based methods to preserve manta rays, dugongs, sea turtles, sharks, and other species. They provide a wider ecosystem conservation, recognizing that healthy megafauna populations indicate thriving oceans.

Impact:

• • Researches and monitors coral reef ecosystems and marine species 
  • Partners with locals, fishers, and governments in creating and implementing conservation solutions
  • Secures marine protected areas and policies to benefit marine biodiversity 
  • Contributes to global datasets and science-based guidance used by policymakers and partners for thriving ecosystems

8. MAR Alliance

Mission: MAR Alliance protects the Mesoamerican Reef and its coastal communities. They manage marine resources, nurture partnerships among locals, and promote effective conservation solutions that advance the health of nature and people.

History: They’ve connected 35+ local, national, and international governments, organizations, and communities in the Mesoamerican Reef region, from Mexico to Honduras. MAR Alliance has coordinated policies, science, and community-led action to preserve one of the largest reef systems in the Western Hemisphere.

Impact:

• • Improves marine governance frameworks to minimize overfishing, habitat degradation, and other threats 
  • Simplifies cross-border collaboration to ensure effective coral reef conservation
  • Supports locals and Indigenous groups in introducing sustainable fisheries management 
  • Promotes regional programs to promote the health of coral reefs

9. Mwambao Coastal Community Network

Mission: Mwambao promotes coastal community leadership in the Western Indian Ocean. They implement locally led marine governance, sustainable fisheries management, and education for all generations on the importance of viewing conservation as cultural knowledge and a shared priority.

History: Founded in 2004 in Tanzania, this organization collaborates with fishers, locals, governments, and regional networks to co-design conservation solutions that align with the communities’ priorities and protect ocean habitats. They believe that ‘ocean health is community health’.

Impact:

• • Collaborates with coastal communities to implement managed marine areas
  • Improves regional networks that promote locally-led ocean stewardship
  • Participates in the planning and monitoring of corals
  • Creates local capacity for governance and sustainable resource management

10. Ocean Conservancy

Mission: Ocean Conservancy uses science-rooted solutions that aim to preserve marine biodiversity, introduce sustainable fisheries, and lower climate impact and pollution.

History: Since its founding in 1972, this organization has been shaping important ocean policies, advocating for science-based solutions, and empowering millions of individuals globally to contribute to a healthier ocean.

Impact:

• • Conducts research and implement policies to decrease harm to oceans 
  • Advocates for sustainable fishing methods and stricter protection of at-risk habitats
  • Organizes large-scale interventions like the International Coastal Cleanup
  • Engages the public and encourage community action for cleaner oceans

11. Oceanic Preservation Society (OPS)

Mission: Oceanic Preservation Society employs visual storytelling and media outlets to empower ocean conservation. They present the beauty of marine ecosystems and the urgency for protecting them, including at-risk coral reefs and coastal habitats.

History: Founded by conservation advocates and filmmakers, this organization has rapidly built a reputation for its award-winning documentaries and visual campaigns. OPS focuses on presenting ocean challenges to inform the public and influence policymakers and stakeholders to take action.

Impact:

• • Creates high-impact documentaries and visual content to raise awareness of ocean issues
  • Strengthens the voice of communities, scientists, and conservation leaders to encourage global engagement and support for safeguarding the ocean
  • Shapes cultural narratives regarding ocean stewardship
  • Empowers policies and community-first solutions

12. Oceana

Mission: Oceana focuses on a variety of methods, including policy advocacy, scientific analysis, and targeted campaigns to address habitat loss, overfishing, and unsustainable practices.

History: Founded in 2001, this organization is one of the largest international advocacy groups focusing on ocean conservation. They use legal, scientific, and communications expertise, and partner with fishers, communities, and governments to secure policy wins that benefit marine biodiversity.

Impact:

• • Advocates for reforms to lower pollution and unsustainable practices
  • Organizes global campaigns to include policymakers and the wider public in ocean conservation
  • Promotes science-based fisheries management to replenish fish populations and decrease pressure on corals
  • Secures legal protection for vulnerable marine habitats

13. One Reef

Mission: One Reef supports community-led coral reef protection through partnerships with ocean stewards in the Pacific. They provide resources, training, and scientific tools, enabling local leaders to preserve the vibrant reefs and island cultures for the current and future generations.

History: Since 2012, this organization has empowered environmental stewards in coastal and Indigenous communities in the Pacific and Micronesia to protect and manage coral reefs.

Impact:

• • Partners with scientific institutions to train local leaders on reef monitoring and impact measurement
  • Enables community stewardship agreements 
  • Supports 50+ local community partnerships in 7 Pacific Island countries, covering millions of acres of locally-managed reef territory
  • Helps increase fish biomass and make coral reefs more resilient

14. Sea Shepherd Conservation Society

Mission: Sea Shepherd safeguards and conserves the ocean and marine wildlife. Through direct action campaigns, they campaign for stricter conservation laws that will end illegal fishing and protect the most vulnerable habitats. Together with their partners, they conduct patrols, enforce policies, and promote science-based solutions globally.

History: Founded in 1977, this organization started as a direct-action movement against ocean exploitation. Today, it’s a global marine conservation charity that partners with governments to protect the ocean. 

Impact:

• • Collaborates with national authorities like the Mexican Navy to safeguard sensitive reef systems like the Scorpion Reef
  • Operates a global fleet that patrols in marine protected areas, enforcing laws, preventing illegal fishing, and removing ghost nets
  • Incorporates scientific research into conservation actions
  • Raises awareness of ocean threats

15. Surfrider Foundation

Mission: The Surfrider Foundation preserves the oceans and ensures waves and beaches remain available to all people to enjoy. They operate through a powerful network of volunteers and activists focusing on community action, policies, and scientific research.

History: Founded in 1984 by a group of surfers who wanted to defend a local coastal spot, today, this is one of the largest grassroots ocean conservation charities. They have a network of hundreds of volunteers, student clubs, and more than a million supporters campaigning in the US and beyond.

Impact:

• • Advocates for stricter marine habitat protection
  • Opposes harmful practices such as offshore oil drilling
  • Mobilizes coastal stewards and include volunteers in beach cleanups, water quality testing, and advocacy campaigns
  • Promotes local and state policies to decrease pollution, enhance water quality, and increase coastal resilience
  • Empowers grassroots efforts to establish and manage marine protected areas

16. The Nature Conservancy

Mission: The Nature Conservancy safeguards waters and lands on which all life depends, including the ocean and coral reefs. They use science-rooted solutions, sustainable management, and community partnerships. 

History: This organization was established in 1951, and it’s one of the largest conservation charities globally. Many projects focus on coral reef preservation, sustainable fisheries management, and climate resilience. 

Impact:

• • Cooperates with coastal communities and governments to manage sustainable fisheries
  • Establishes marine protected areas
  • Promotes reef resilience
  • Scales long-term ocean conservation solutions with science and policies

17. The Ocean Cleanup

Mission: The Ocean Cleanup’s mission is to cease plastic pollution and prevent it from polluting invaluable ocean ecosystems. They work hard to preserve ocean life and vulnerable habitats, including coral reefs.

History: Founded in 2013, this organization’s primary focus was to remove plastic from ocean gyres. Today, they help clean polluted rivers and prevent waste from entering the seas.

Impact:

• • Uses large-scale systems for the effective removal of plastic waste from the waters
  • Operates river interception initiatives to prevent plastic from going into the coastal and reef ecosystems
  • Improves innovation and data gathering to learn more about marine pollution
  • Raise awareness about the impact of plastic pollution on the ocean

18. WildAid

Mission: WildAid reduces the demand for illegal wildlife products and unsustainable practices that hurt marine and terrestrial species. They empower healthier consumer habits, stronger policy enforcement, and promote sustainable alternatives. They protect marine ecosystems from being overexploited by addressing the root causes associated with human behavior.

History: Founded in 2000, this organization is well-known for its campaigns that promote demand reduction and partnership with communities, governments, and cultural influencers to promote behavior change.

Impact:

• • Lowers pressure on marine biodiversity caused by illegal and unsustainable habits
  • Promotes marine enforcement and capacity-building
  • Employs behavior-change campaigns to encourage sustainable seafood choices
  • Improves conservation results by addressing unsustainable human behavior 

19. World Wildlife Fund (WWF)

Mission: WWF’s mission is to stop and reverse the decline of the ocean and coral reefs. They aim to create a thriving future for people and nature using science-based solutions, community cooperation, and global policies. Their ocean work focuses on advancing sustainable fisheries, safeguarding reefs, and making the ocean more resilient.

History: Founded in 1961, WWF today is a respected conservation organization globally, with years of experience in marine conservation, fisheries reform, and habitat safeguarding.

Impact:

• • Partners with communities, businesses, and governments to fight off overfishing and habitat loss
  • Establishes marine protected areas and sustainable fisheries
  • Promotes ocean-friendly policy adoption
  • Blends advocacy, science, and partnerships to improve conservation efforts

Choosing an ocean conservation charity that delivers lasting impact

With so many organizations working to protect the ocean, it can be hard to know where your support will do the most good. The strongest ocean conservation charities combine scientific rigor with practical strategies that work for the people who depend on healthy seas, from fishers and farmers to coastal families and small businesses. 

Use the criteria below to compare options and choose an organization that matches your values and delivers durable results. 

Look for transparency and measurable impact

Measurable, transparent ocean conservation helps supporters understand how their contributions translate into real-world outcomes for people and the ocean. Trust grows when organizations clearly explain what they do, how they do it, and how they measure progress over time.

The best ocean conservation charities typically demonstrate the following commitments:

• Transparency in approach and impact: They clearly explain how programs work, what challenges exist, and how progress is measured, helping supporters see how their contributions enable action.
• Regular, accessible reporting: They publish updates and reports that share progress over defined time periods, outline how funds are used, and communicate results with honesty and clarity.
• Independent evaluation and accountability: They are assessed by third-party organizations that provide objective insight into governance, effectiveness, and financial stewardship.
• People-centered impact data: They connect metrics to real-world outcomes, showing how conservation efforts support sustainable fisheries, improve livelihoods in vulnerable regions, and contribute to healthier reef and marine ecosystems.

This level of openness and accountability helps ensure that ocean conservation investments support solutions designed to endure.

Prioritize locally grounded approaches

Ocean conservation is strongest when the people who depend on marine ecosystems are meaningfully involved in shaping solutions. Locally grounded approaches draw on regional knowledge, cultural context, and long-term commitment to stewardship, helping align conservation goals with food security and livelihoods.

Organizations such as Rare and OneReef show how conservation outcomes improve when investments strengthen local governance, support coastal resource management, and enable locally driven monitoring and decision-making. When people have the tools and incentives to care for marine resources, stewardship is more durable across generations.

Balance global reach with local action

International organizations play an important role in mobilizing resources and advancing policy, while locally rooted groups translate those frameworks into practice. Supporting a mix of both helps ensure ocean conservation is scalable, context-specific, and grounded in the realities of coastal communities.

Take action for the ocean

Protecting the ocean is not only the work of governments and NGOs. Individual actions, when sustained and aligned with effective conservation, can help restore marine ecosystems and support coastal livelihoods.

• • Give monthly: Reliable donations help fund long-term conservation, reef protection, and sustainable fisheries.
  • Support smart ocean policy: Back organizations that advance science-informed policies for sustainable fisheries and waste reduction.
  • Lower your footprint: Choose reusables, support sustainable packaging, and cut plastic that harms marine life and reefs.
  • Share stories from your community: Stories from coastal communities such as Mozambique’s small-scale fishers, show how stewardship can restore ecosystems and livelihoods.