Nigerian Society is dedicated to conservation of the sea, shore and wildlife for both the present and future generation. Their stated aim is 'for cleaner sea'.

Marmo - Mar Mozambique was established in 2020 for the environmental protection and conservation of the Mozambican sea. This includes promoting biological diversity, developing marine and coastal conservation initiatives, promoting scientific research and ocean literacy and influencing policy by advocating for the marine environment.

Since its creation, the MMCS has developed various programmes aimed at preserving the ecosystem, for instance: attributing greater value to the submarine archaeology, stopping fishing practices using dynamite or underwater weapons, creating artificial reefs, identifying protected marine areas, keeping records of marine mammals driven ashore, identifying and protecting cetaceans as well as creating educational games based on the marine environment.

MedReAct’s mission is 'to catalyse action for the recovery of Mediterranean marine ecosystems by ensuring a fair and responsible long-term use of our Common Sea.' MedReAct consists senior marine campaigners and NGOs that jointly worked to reform of the Common Fisheries Policy (CFP), and who coordinated the coalition OCEAN2012 in Greece, Cyprus, France, Italy and Spain (ocean2012.eu), which helped securing the CFP main objective of stopping overfishing by 2020. They have now turned their attention to recovery of the Mediterranean ecosystems.

MedSOS Network is a on-profitable, non-governmental organization active since 1990 in matters related to the environment and culture on a Euro-Mediterranean level. It has 120 Full Members who form its annual General Assembly and approximately 3000 Supporting Members. Included in main activities are the issues of: Marine environment and coastal zones, Water Resources, Natural protected areas, local communities, urban environment, Energy and Climate Change

MEDASSET works to protect marine and coastal habitats in the Mediterranean, with the conservation of sea turtles and their habitats as their focus, using conservation and scientific research programmes, public awareness, environmental education, and lobbying decision-makers.

Metsähallitus manages state-owned lands and waters stretching across about one third of Finland’s surface area, or more than 120,000 km². Roughly one quarter of this, or over 30,000 km², are marine areas. The main aim of the marine conservation work is to ensure the good status of biodiversity and species of the Finnish underwater nature. This is done by planning the management and sustainable use of state-owned marine areas and the marine conservation network. (extract from website)

MexicoAzul promotes awareness of the marine habitat, defense of the environment and sustainable development, through the planning and execution of cultural, civic and educational cooperation and development programs. The Foundation for Mexico was born from the desire to create awareness about the importance of marine habitats for human life and the stability of the planet. They aim at promoting the sustainable use of coastal marine ecosystems, and to create an effective system of Marine Reserves and Protected Natural Areas in Mexico

The Mission Blue alliance includes more than 200 respected ocean conservation groups and like-minded organizations, from large multinational companies to individual scientific teams doing important research. The focus of Mission Blue is all about protecting the health of the ocean, by inspiring the action necessary to achieve that goal. They have identified 'Hope Spots', areas which are critical for healthy oceans. 'Some Hope Spots are already formally protected, while others still need defined protection. Under Dr. Earle’s leadership, the Mission Blue team has embarked on a series of expeditions to shed light on these vital ecosystems and ignite support to safeguard them as marine protected areas.'

Moidjio is a Comorian research and conservation group which focuses on cetacean and turtle conservation projects, undertaking acoustic, cetacean monitoring and turtle monitoring projects. They also work to stop poaching of sea turtles on the islands and develop a sustainable ethical whale watching industry. They are working on humpback whales, spinner dolphins, green and hawksbill turtles, lemurs, mangroves, seagrass meadows and coral reefs. Their work includes tree planting to protect against erosion, research into mangroves, sea grass and coral reefs. They study sea and terrestrial birds, lemurs and Livingston bats on the islands; plus education programmes in sustainability and English in the local communities.

This non-profit public aquarium in Monterey, California, is known for its regional focus on the marine habitats of Monterey Bay, it was the first to exhibit a living kelp forest when it opened in October 1984. Its biologists have pioneered the animal husbandry of jellyfish and it was the first to successfully care for and display a great white shark. The organization's research and conservation efforts also focus on sea otters, various birds, and tunas. Seafood Watch, a sustainable seafood advisory list published by the aquarium beginning in 1999, has influenced the discussion surrounding sustainable seafood.

Mote Marine Laboratory’s main campus is in Sarasota, Florida, where the Mote Aquarium plays an important role in Mote’s outreach efforts to educate visitors about marine life. This includes by 'presenting exhibits and programs that reflect ongoing research in the laboratory and that stimulate curiosity, discovery, exploration and stewardship of aquatic environments'. The laboratory has numerous marine research programmes, and aims to ' advance marine science and education, supporting conservation and sustainable use of marine resources.'