Resource: Professional Societies
- U.S. National Committee for Geological Sciences
- U.S. Regional Fishery Management Councils
- UC Center for Climate Justice
- UK Centre for Ecology & Hydrology
- Underwater Archaeological Society of British Columbia
- Underwater Archaeology, Woods Hole Oceanographic Institution
- Union of Concerned Scientists
- United Kingdom Environmental Law Association
- University Corporation for Atmospheric Research
- Urban Ocean Lab
- US Aquaculture Society
- USGS Pacific Coastal and Marine Science Center
- USGS St. Petersburg Coastal and Marine Science Center
- USGS Woods Hole Coastal and Marine Science Center
- Utah Department of Environmental Quality
- Utah Diné Bikéyah
- VIDA: Women in Literary Arts
- Virginia Department of Environmental Quality
- Washington Native Plant Society
- Washington State Department of Ecology
- Washington State Department of Natural Resources
- Water Affiliates Group
- WE ACT for Environmental Justice
- Weed Science Society of America
- West Virginia Division of Natural Resources
- Western Environmental Law Center
- Western Regional Aquaculture Center
- Western Writers of America
- Wetlands International
- Whale and Dolphin Conservation
- Whale and Dolphin Conservation
- Whale Shark & Oceanic Research Center
- Wild Flower Society
- Wild Oceans
- Wisconsin Aquaculture Association
- Wisconsin Center for Investigative Journalism
- Wisconsin Department of Natural Resources
- Wisconsin Underwater Archaeology Association
- Women in Engineering ProActive Network
- Women in Engineering Programs and Advocates Network
- Women In Film
- Women in Marine Mammal Science
- Women in Ocean Science
- Women in Photography International
- Women in Technology International
- Women Independent Producers
- Women Make Movies
- Women of Color Research Network
- Women Photograph
- Women's Alliance in STEM and Humanities