Global Ocean is dedicated to the conservation of marine life, by heightening public awareness about the plight of the seas, providing educational resources and raising funds for conservation programmes. Their projects educate and raise awareness about the importance of healthy oceans for sustaining life and positively engage the public and encourage stewardship of our blue planet. In particular, they draw attention to the dangers of plastic pollution in our oceans. They develop and deliver free educational workshops and resources for schools and the public around the world. Similarly, their India branch has a primary focus on raising awareness about plastic pollution through education, outreach and workshops, currently working in the state of Kerala. Their UAE branch focuses on conserving native Elasmobranch species and implementing their plastic pollution education programme.

The Great Canadian Shoreline Cleanup is a national conservation program that provides Canadians the opportunity to take action in their communities wherever water meets land, one bit of trash at a time. Initiative. Originally an initiative lead by Vancouver Aquarium, now Ocean Wise, and operates in conjunction with WWF Canada.

The Green Heritage Fund Suriname works for the protection of the wild dolphin population through establishment and maintenance of a sound community monitoring program that contributes to decision-making regarding the estuary of the Suriname River. Working on the conservation of dolphins in the estuary inspired GHFS to expand its conservation efforts to include the marine environment in its entirety. This shift in focus inspired the organization to work towards sustainable use and management of the marine environment, which ultimately motivated the GHFS initiate or promote the use of marine spatial planning in Suriname. Addressing marine litter is also an important focus of the organization.

Greenpeace Australia Pacific is the regional office of the global environmental organisation Greenpeace. Greenpeace Australia Pacific is one of Australia's largest environmental organisations.

The Green Peace organization works on several issues in the marine environment, amongst their many various interests. With its vast networks across the world, the organisation urges big corporations to act to reduce their plastic footprint to end the flow of plastic into our oceans. In addition, Green Peace is engaged in addressing unsustainable industrial fishing practices, climate change and ocean acidification. Greenpeace's oceans campaign focusing on three major threats to the world's oceans: overfishing, pirate fishing, whaling, and intensive shrimp aquaculture.

The GCFI is a non-profit organization that works throughout the Caribbean and Gulf of Mexico region, renowned for their annual meetings since 1947, actively promoting the exchange of information on the use and management fo marine resources in the Gulf of Mexico and the Caribbean. GCFI has worked for over 2 decades on developing coral-reef marine protected areas networks in the Caribbean and has developed the capacity of MPAs and their managers. They work together with multiple organizations, including UNEP and NOAA, to address issues in the area, including marine litter, sustainable fisheries, coral reef monitoring, amongst many others.

In 2002, a handful of Alaskan volunteers began protecting the waters and habitat of the Northern Gulf of Alaska by cleaning up marine debris in Prince William Sound. In 2006 these efforts morphed into the non-profit Gulf of Alaska Keeper (GoAK), which has removed over 3 million pounds of toxic plastic debris from over 1,500 miles of critical and sensitive coastal habitat. As the continent's largest ongoing marine debris clean-up organization, GoAK has developed clean-up techniques that make it the most efficient remote coastal marine debris cleanup organization in the world.

HEPCA is a NGO specializing in the field of marine and land conservation in the Egyptian Red Sea. What began with a dozen of concerned individuals grew through the years to become a large network of scientists, professional divers, industry experts, and community members who are pro-active in protecting and preserving the natural resources of the Red Sea, as well as promoting conservation and sustainable tourism practices.

HWF is a dedicated to the conservation of Hawaii's native wildlife through research, education and advocacy. The HWF Team is made up of educators, conservationists, researchers, naturalists, communities, volunteers and donors devoted to the protection of Hawaii's fragile marine ecosystem and inhabitants.

Healthy Seas was founded to tackle the ghost fishing phenomenon that is responsible for the needless death of marine animals. They remove waste from the seas, in particular fishing nets, which are then regenerated into new textile products such as socks, swimwear and carpets. They achieve this through cleanups with volunteer divers and by working with stakeholders of the fishing sector toward marine litter prevention. Since their inception, in 2013, Healthy Seas has collected 585 tons of waste nets. They currently have operations in the North Sea, the Red Sea, the Mediterranean, Adriatic and Baltic Seas and the Pacific Ocean.

HOAM is a group of concerned locals from the Helderberg region who plan to eliminate litter and give their beaches back to nature.

The IUCN Global Marine and Polar Programme (GMPP) has a team committed to effectively addressing key global challenges in the marine and polar environment. GMPP cooperates with other IUCN thematic and regional programmes and with the IUCN Commissions to ensure that marine and polar ecosystems are maintained and restored in their biodiversity and productivity, and that any use of the resources is sustainable and equitable.