The Buccoo Reef Trust (BRT) was specifically created to assist the government and communities in addressing the threats facing Tobago’s marine environment and to explore opportunities for the sustainable development of marine tourism, fishing and aquaculture in the Southern Caribbean region. BRT has successfully implemented education, research and coastal zone management programmes throughout Tobago, supporting its aim of building capacity in marine sciences that will enable governments, resource managers and stakeholder and the general public to make informed decisions on how best to interact with and use the region’s marine resources.

What started in 2013 as a local youth movement saying NO to plastic Bags, has expanded dramatically. From its foundation by two young sisters in Bali, BBPB has become an international movement. BBPB Teams have launched in over 50 locations across the globe and the founders share their message on stages around the world in front of global leaders. In 2021 there are BBPB bases in Indonesia, India, Thailand, Vietnam, Malaysia, Japan, Myanmar, Australia, Spain, Greece, Algeria, Egypt, Denmark, Germany, Mexico, Hong Kong, UK, Nigeria, France, New Zealand, South Korea, China, Singapore, Tanzania, Peru and Qatar. A remarkable achievement.

CEBSE focuses on conservation and sustainable development within the area of the proposed biosphere reserve in Samana Bay, in the Dominican Republic, a programme involving community participation and education, sustainable development, conservation of biodiversity and inter-institutional co-ordination and support.

With over 15 years of experience in marine research, education and outreach and six years on the island of Eleuthera, CORE is involved in community education and capacity building in north Eleuthera. Their mission is to involve Bahamian students and communities in the research process which is aimed at understanding of ecologically sensitive habitats that ultimately promotes the conservation of biodiversity. Their education programs promote the ecological significance and consequent conservation value of both marine and terrestrial ecosystems. Current projects include marine pollution, impact of acidification, shark monitoring, amongst others. Jan 2023: website inaccessible (expired).

CORE sea is a research and marine conservation education organization which works to understand and protect the marine biodiversity of South East Asia, by providing a platform for both research and marine education. Researchers and conservationists develop, test and apply best practices to actively help our deteriorating coral reefs, while students and interns participate in marine conservation oriented projects such as maintaining and establish projects like artificial reefs and coral nurseries, remove ghost nets, clean reefs and beaches.

CRAM Foundation is dedicated to the protection of marine life. Its main activity is the clinic and rescue of endangered marine species, which will later be reintroduced to the wild, such as turtles and dolphins. The Foundation also carries out research into marine species and ecosystems, and educates to raise awareness of the need to conserve the oceans. In addition to the state-of-the-art recovery center, with a technical and human team specially trained to assist marine species, as well as the Vell Marí, one of the few scientific sailboats dedicated to the exploration of the marine environment.

Based in Costa Rica, CREMA is marine preservation organization which plays a role in the country's international shark fin trade. The group also does research so that they can protect ocean resources as well as persuade the country (and all Central America) to carry out sustainable fishing policies.

Based in Monterey Bay, California, COA conducts marine research to drive conservation, with the additional aim to educate on marine and conservation issues. In one such project, COA marine biologists travel to Antarctica to conduct cutting-edge research on whale populations and behaviour. By combining research with conservation and education, they are contributing to the understanding and protection of marine mammals worldwide, and ensuring that their populations persevere and thrive into the future.

The Cape Eleuthera Institute (CEI) is a dedicated center for research and innovation at The Island School in South Eleuthera, The Bahamas. CEI promotes ‘the conservation of the tropical marine and coastal ecosystems by facilitating the research of resident and visiting scientists, supporting the education of students at all levels, and spurring outreach efforts to enhance the environmental awareness of local and global communities.’ Students of all ages gain experience regarding conservation, sustainability, and local ecosystems. They collaborate with world-class scientists, doing substantive research, eg. tagging nurse sharks, sea turtle research, all aimed at a better understanding of the environment and how to protect it.

Cape RADD is a marine field station that serves as a platform for researchers in the Cape Town and False Bay area of South Africa. They facilitate SCUBA and freediving training courses for individuals who want to learn more about the marine environment, conservation and research through hands on field experience and diver development. Their courses include training in multiple data collection and field operation techniques, and theoretical workshops and presentations from field biologists and dive experts. They also run a volunteer programme focusing of citizen science research, community awareness, conservation projects and educational outreach.

CARMABI was established in 1955 as a marine research institute. Now the organization has 4 pillars on which it works: Marine and Terrestrial Research, Park Management, Nature and Environment Education and Consultancy. The research facilities host different researchers from all over the world to study the island's reefs. Park Management manages several national parks on Curacao: The Christoffel National Park; the largest national park of the island, an important Sea Turtle nesting area: Shete Boka National Park; The Curacao Marine Park, where they protect the reef and conduct scientific marine research, and shortly to be added is The Curacao Rif Mangrove Park.

CCRC was founded to conserve cetaceans and the ecosystems they inhabit. Their mission is to conduct benign research on the biology of cetaceans, to raise awareness of marine conservation issues, especially those concerning cetaceans, by: Providing curriculum enrichment and community outreach programs, Publishing scientific findings in both professional and popular formats through various media, Offering practical experiences for interns and volunteers, Producing educational films for television, and finally to collaborate with and facilitate organizations and individuals of complementary purpose. Closely associated Cook Islands Whale Research, they also have an office in Maine in the US.