- Caribbean Conservation Corporation & Sea Turtle Survival League
 - Increasing the understanding of the plight of sea turtle species in the wider Caribbean and Atlantic. Conducts programs in satellite tracking and nest preservation. - Sea Turtle Restoration Project
- Fights to protect endangered sea turtles in ways that make cultural and economic sense to the communities that share the beaches and waters with them.
- Help Endangered Animals - Ridley Turtles (HEART)
- Promoting preservation of all endangered sea turtles, especially the Kemp's Ridley, through education and activism.
- EuroTurtle
- Provides extensive sea turtle biology and conservation information. Offers identification keys with photographs, diagrams, and general descriptions.
- Sea Turtle Association of Japan
- Established by people involved in turtle surveys and research around Japan.
- Sea Turtle Preservation Society (STPS)
- Nonprofit working to educate the public about marine turtles and to help maintain the current sea turtle population in Florida.
- Leatherback Trust, The
- Nonprofit foundation established to save the Leatherback Turtle and other sea turtles from extinction. It is active in the management of leatherback nesting beaches in Costa Rica.
- Archie Carr Center for Sea Turtle Research (ACCSTR) - University of Florida
- Working to conduct research in all aspects of the biology of sea turtles, to train graduate students, and to further sea turtle conservation through the communication of these research results to the scientific community, management agencies, and conservation organizations throughout the world.
- Association for the Protection of the Environment and the Marine Turtle in Southern Baja (ASUPMATOMA)
- Helping to save sea turtles along Baja's coastline by protecting their nurseries.
- Cape Lookout Studies Program
- Bottlenose dolphin research, coastal environmental education, and sea turtle conservation program of the North Carolina Maritime Museum.
- Save-A-Turtle
- Dedicated to the preservation, protection, and enhancement of rare and endangered sea turtles in the Florida Keys.
- Mediterranean Association to Save the Sea Turtles (MEDASSET)
- Working for the conservation of sea turtles and their habitats throughout the Mediterranean.
- Neighbors Ensuring Sea Turtle Survival
- Offers activities that are geared towards sharing information, becoming more informed, and making the right choices to assist nesting turtles and hatchlings.
- Marine Turtle Research Group (MTRG) - University of Exeter
- Group of professional scientists and student volunteers dedicated to undertaking fundamental and applied research on marine turtles world-wide.
- NOAA Marine Turtles
- Features species identification guides as well as scientific reports studying the graceful saltwater reptiles.
- Broward County Sea Turtle Conservation Program
- Briefly describes sea turtle nesting behaviour and threates to the population.
- The Georgia Sea Turtle Center
- Georgia Sea Turtle Centre rescues and rehabilitates injured sea turtles and works to educate the public about these endangered species,
- WWF: Marine Turtles
- Learn about the marine turtle life cycle and habitat, the WWF's Global Marine Turtle Programme, and conservation efforts for all seven species of endangered marine turtles.
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