A Clean Beach Initiative is an Australia based non-profit organisation focussing on the reduction plastic pollution in the oceans and beaches. As educating people on the risks of marine plastic pollution, the organisation encourages beach-goers to take just three pieces of rubbish before leaving the beach and places near any waterways or bodies. As millions of tons of plastic end up in our oceans every year, this initiative believes in turning small efforts into big results to protect our oceans from plastic pollution

Tangaroa Blue Foundation is an Australia-wide organisation dedicated to the removal and prevention of marine debris. They have created 'the Australian Marine Debris Initiative (AMDI), an on-ground network of volunteers, communities and organisations that contribute data to the AMDI Database, and then work on solutions to stop the flow of litter at the source. The AMDI helps communities look after their coastal environment by providing resources and support programs, and collaborates with industry and government to create change on a large scale.' (from their website)

The Tara Ocean Foundation, the first recognized public interest foundation in France dedicated to the world’s oceans, organizes voyages to study and understand the impact of climate change and the ecological crisis facing the world's oceans. 'We use high-level scientific expertise to raise awareness and educate young people, mobilize policy makers at the highest level, and enable emerging and developing countries to access the latest knowledge about the Ocean. ' In addition, the Tara Ocean Foundation partners with many French and international groups as advocates for policies on climate, biodiversity and plastic pollution. Since 2015, as Special UN Observer, the foundation has been supporting the important decisions to be taken in favour of the ocean in the eyes of leaders and encouraging them to maintain ambitious objectives.

TIC runs a wide marine conservation programme focusing on biodiversity on the island on Tengah in Malaysia. Protection of turtles is a significant part of their agenda, as is marine pollution, engagement with the local community, and sustainable tourism. Their conservation programme includes coral reef mapping on Pulau Tengah and other Johor islands, coral reef surveys and monitoring, reef restoration and other habitat studies.

Co-founded by husband-and-wife duo Marcus Eriksen and Anna Cummins, The 5 Gyres Institute is a non-profit organization that works for cutting plastics pollution through giving focus on primary research. The organisation says it fights against pollution through science, art, education, and adventure, eg. as a result of their efforts, the organisation worked to help impose a ban on plastic microbeads used in skincare and cosmetic products in the United States.

The Beach Co-op works to eliminate, reuse, redesign and recycle single-use plastic, which often lands up in our oceans and on our beaches. We work with single-use plastics at all points of the value chain, including to remove them from the beach, educate about choices regarding plastic products, and to advocate for less plastic usage and recycling options.

Devoted to Marine Conservation in Thailand, with the aim of improving the health of the oceans and coral reefs, The Coral Tribe area group of qualified and certified Marine Conservation Instructors who conduct marine conservation courses and internships for beginner to graduate level, for divers and non-divers. Their many projects include coral restoration, Microplastics surveys, Beach Cleanups, marine debris extraction, Diving against debris, amongst others

The MARE Foundation works to protect the Polish and Baltic marine environment. The main objectives are the conservation of marine living resources and their habitats through measures aimed at promoting sustainable exploitation of marine and coastal resources, the protection of ecosystems and its components having an impact on the marine environment and raising public awareness of environmental matters, as well as helping people affected by ecological disasters and their effects.

Ocean Conservancy is a non-profit environmental advocacy group based in Washington, D.C., United States. One of the leading advocacy groups working to protect marine habitats, the organization helps formulate ocean policy at the federal and state government levels based on peer reviewed science. Serves to protect ocean ecosystems and conserve the global abundance and diversity of marine wildlife through science-based advocacy, research, and public education. Part of the 'Fighting for Trash Free Seas' campaign, International Coastal Cleanup (ICC) is one of their many initiatives, as is Clean Swell (a trash collection mobile app). To encourage cleanups around the globe, they provide various 'how to' information on their website.

The Ocean Movement (formerly known as “By the Ocean we Unite”) is a Dutch charity that works to stop plastics to end up in the oceans, by various activities, including sailing expeditions, lectures, documentaries. They conduct research, educate and activate people, organizations and governments.

The Sea Cleaners work on solutions against marine plastic pollution on land and at sea. They are ‘fighting on all fronts: awareness and prevention, the dissemination of scientific knowledge, the transition to a circular economy, and the collection of waste on land and at sea.’ They collect floating plastic waste in high concentration areas before it sinks or breaks down into microplastics, and develop innovative collection and reuse solutions of plastic waste in the sea. They currently have a vessel, the Mobula 8 which collects macro- and micro-waste for pollution control and research, and are currently developing The Manta, a giant sailing boat/factory ship capable of collecting, processing and recovering large quantities of marine plastic waste. Their mission also includes scientific research and awareness raising against plastic pollution, encouraging volunteers worldwide to join clean-up operations in calm and protected waters - port and lake areas, mangroves, rivers, canals and the sea up to 5 miles from the coast.

Trees to Seas is teaching conservation through participation, including education, dive training, ocean clean-ups in various places, including Hawaii, Bali, Belize, Jamaica