CCS's mission is to improve cetacean conservation within the Wider Caribbean Region and beyond. Created by two marine biologists from Guadeloupe and Martinique islands in 2020, and based in Martinique, the group aims to work at the Caribbean scale, to improve cetaceans conservation through international cooperation, via networking and practical research. Their initial "Ti Whale An Nou" project 'aims at determining population estimates, distributions, movement patterns, social structure and vocal clans of the Sperm whales (Physeter macrocephalus) in the Lesser Antilles. This project also allow to improve knowledge on the diversity, distribution and relative densities of the other cetacean species in the region.'

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CARICOMP was a regional scientific effort to study land-sea interaction processes, to monitor for change, and to provide appropriate scientific information for management of the coastal resources in the wider Caribbean region. In existence from 1992 to 2007

The Manta Caribbean Project takes a multidisciplinary approach to the conservation of manta and mobulid rays, and their habitat in the Caribbean Sea. They work on the conservation of these gentle creatures via science and research, and by raising awareness and providing education to the community and stakeholders. Karen Fuentes' message to divers is to look up from time to time, as you never know who might be passing by.

The Caribbean Shark Coalition is a coalition of over 40 organizations from nearly 30 countries working to advance the study and conservation of sharks and rays found in the Greater Caribbean region. Founded by the Dutch Caribbean Nature Alliance and Beneath the Waves in 2020, CSC members represent a collection of experts from NGOs, local communities, intergovernmental organizations and governments, academia, and policy institutes, and local businesses, working together to advance the study and conservation of sharks and rays found in the waters of the Greater Caribbean. The CSC will provide cross-disciplinary training, region-wide assessments, and will issue grants to CSC-member projects.

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.

CeDePesca works towards achieving socially, economically and ecologically sustainable fisheries in Latin America.  ‘By implementing Fishery Improvement Projects, CeDePesca trains stakeholders, builds the capacity of small-scale fishers, encourages and conducts research, and spreads management systems that ensure the sustainable use of fishery resources in the region’. Their headquarters are in Argentina, with offices in Chile, Brasil, Perú, Panamá, México y Guatemala

Center for Biological Biodiversity has a membership organization with approximately 1.1 million members and online activists, and is known for its work protecting endangered species through legal action, scientific petitions, creative media and grassroots activism. The Center is working to establish crucial protections for Pacific Ocean species and their habitats based on the following rationale: The 'high seas', or 'open ocean', have historically been a no-man's-land, claimed by no single country and not governed by any single body of law; and the sea has been treated as an inexhaustible resource, infinitely deep, wide, and bountiful. But the advent of large-scale commercial fishing, shipping and oil drilling has pushed many species to the brink of extinction and beyond, and the oceans, animals and natural systems are now in serious decline. While their main office is in Arizona, they have bases in many locations in the US, including in Hawaii.

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.

CMBC works to assess the state of marine ecosystems now and in the past and develop predictive models for the future; train new marine biodiversity and conservation scientists; develop novel interdisciplinary approaches linking the biological, physical, social and informatic sciences; increase public understanding of scientific issues and provide sound scientific analyses to policy makers; design technically sophisticated, regionally appropriate strategies to prevent and reverse biodiversity collapse.

CCMI is dedicated to conducting and facilitating research, education, and outreach that will sustain marine diversity for future generations. They maintain a growing marine research and education facility with a resident team of staff based in Little Cayman in the Cayman Islands, focusing on the adaptation and resilience of coral reefs. Their research team conducts state-of-the-art experimental research, as well as 20+ years of monitoring and observational studies, to understand how coral ecosystems respond and evolve in the face of climate change. They develop empirically verified methods to ensure successful, complex restoration can boost wild coral populations and promote biodiversity on coral reef ecosystems, helping to restore populations of threatened coral species across the Cayman Islands. They work at education and outreach initiatives, including for local and international students.

CEMACS was established in August 1991 to undertake research and post-graduate training in Marine Science and Coastal Ecosystems. It provides the institutional mechanism for mobilising and integrating the Universiti Sains Malaysia’s considerable expertise and resources in marine science. The main objective of CEMACS is to enhance the capability of conducting integrated inter-and multi-disciplinary studies leading towards solving problems related to marine and coastal ecosystems. Located at Teluk Aling the northwest coast of Penang Island in the Penang National Park, research and training conducted at the centre is focused on biodiversity and conservation of marine ecosystems, coastal forest ecosystems, mariculture and marine mammal ecology (dugong and dolphin).

Centro Ballena Azul focuses on conservation of the blue whales in Chile