4Ocean manufactures and sells bracelets made from recycled materials, as well as apparel and water bottles. The company uses a portion of the profits to remove one pound of trash from the ocean and coastlines for each bracelet that is sold in an effort to clean up plastic pollution in oceans. Now operating in several countries around the world, 4Ocean employs people to collect trash from the ocean and beaches, and organises beach cleanups by volunteers. It is an award-winning company, gaining recognition for its entrepreneurial success. They are currently at work in Bali and Java, Indonesia; Haiti; Guatemala and Hawaii, USA. In addition, they have created The 4Ocean Learning Center as a resource 'for teachers, students, businesses, and any ocean enthusiast who wants to learn more about the ocean plastic crisis and be part of the solution to plastic pollution.'

AIMM is a Portuguese environmental non-governmental and not-for-profit organisation dedicated to the research and conservation of marine species and ecosystems such as dolphins, whales, sharks, sea turtles and marine birds. Founded in 2010 and based in the Algarve region, AIMM aims to be a reference for marine research and conservation, and education about the marine environment, promoting activities and establishing partnerships that, in a cooperative way, enhance the understanding of issues related to the marine environment. AIMM has developed most of its projects in the Algarve region, but also in other regions of Portugal and outside the country, particularly in the Atlantic. They work in collaboration with national and international entities, such as maritime agents, administrative authorities, dolphin watching companies, other NGOs and public institutions. In cooperation, they try to promote a sustainable and safer environment for marine species. See their instagram account at https://www.instagram.com/aimmportugal_org/. Their Youtube channel includes several videos well worth watching.

ATMEC is a marine science focused initiative by Love Wildlife Foundation, aimed at providing education in marine biology and ecology to students of all ages. ATMEC also prioritises conducting original research and conservation projects, in collaboration with the Department of Marine and Coastal Resources, in the Gulf of Thailand. The field station is based at Koh Mun Nai, Rayong. Current research projects include studying coral spawning and recruitment, investigating several new species of marine invertebrates, assessing threats to coral reefs from sedimentation to discarded fishing gear, and much more. Education includes dive training, marine ecology courses, and internships.

The Aeolian Islands Preservation Foundation exists to preserve the exceptional beauty and natural heritage of the archipelago which is north of Sicily in the Tyrrhenian Sea off Italy . AIPF raises money from people from all around the world who care about the future of the Aeolian Islands. which donations are used to give out grants to local environmental and sustainable initiatives. AIPF has worked with 'partners and funded projects to protect the land and sea, commissioned studies to engage the community and promote change, and established alliances to strengthen local voices on critical issues'. Such projects include combatting plastic pollution and marine debris, creating marine protected areas, monitoring marine life such as turtles, supporting marine research, education and awareness, amongst others.

Ocean conservation educational initiative taken up by a 7 years old from Minnesota named Aeon. In first quarter since the birth of the organization, it presented the awareness to more than 250 youngers in several educational institutes. The initiative continues to grow and to educate kids about the ocean.

ACE work with a marine conservation project in South Africa, organising volunteers for conservation work, including school trip, gap year students and adventure tourism. This is an example of the many conservation-oriented volunteer experiences that exist for fee-paying volunteers. They are not included in this database as a rule, this one being here as an example of what is available. They can easily be found on the internet.

AFMESI's mission is to achieve total sensitization of people, organizations, groups, governments among others in Africa towards achieving sustainable utilization of the marine environment and its resources, by providing a platform for information exchange among experts on the subject globally and harnessing and directing such knowledge to protecting, restoring and improving the quality of the oceans in the continent . (Note: social media contacts not connecting in July 2021)

AMMCO’s mission is to contribute to the protection of the aquatic megafauna and their habitats in Central Africa by improving the scientific knowledge of the area, and involving fishers and other stakeholders into sustainable fisheries and responsible watershed-use. The four strategies they have adopted include applied research and monitoring, integrated management, awareness and capacity building. In practice this involves conservation of the aquatic megafauna b: Protection, Restoration, Good local governance, Community-based conservation, Alternative livelihood and Advocacy. They aim to develop the advanced skills and experience required in aquatic research, achieved by providing internship, mentorship, and workshops to students and fishermen frequently.

AMRF is dedicated to the preservation of the marine environment, specifically to the problem of plastic pollution. Algalita was the first to spearhead the research methodology for collecting and analyzing micro/macroplastic samples from the ocean. Since Captain Moore's 1997 discovery of the 'plastic soup' in the North Pacific Gyre, AMRF have continued collecting samples through multiple expeditions in the North Pacific and around the world, including in the Southern Hemisphere in Chile and the South Pacific. Their current focus is on youth education.

American Cetacean Society aims to protect whales, dolphins, porpoises, and their habitats by educating the public about the problems these animals face. It also provides teachers' guides and fact sheets on marine mammals and allows interested parties to join the group's whale watching trips to Baja. The Society also makes research grants available and is involved in conservation actions.

The ASOC Southern Ocean Fisheries Campaign works on five continents to stop the Illegal, Unregulated and Unreported (IUU) fishing that is dramatically depleting toothfish stocks, the most important commercial fish in the Southern Ocean. At the same time, the long-liners are killing thousands of endangered albatrosses and other seabirds each year.

Archipelagos, Institute of Marine Conservation is a Greek non-profit, non-governmental organization founded in 1998. Archipelagos is committed to researching and defending the biodiversity of the Greek seas and islands, as well as of the NE Mediterranean region overall. The focus is on a combination of multi-disciplinary scientific research and efficient conservation work.