Resource: Professional Societies
- Deep-Ocean Stewardship Initiative
- Delaware Department of Natural Resources and Environmental Control
- Department of Marine Geology, Center for Coastal Studies
- Department of Ocean and Resources Engineering
- Detroiters Working for Environmental Justice
- DigitalUndivided
- Directors Guild of America Inc.
- Diva Film Productions
- Divers Alert Network
- Diverse Representation
- Doc Films
- Doc Society
- Dream Corps: Green For All
- EANA- European Astrobiology Network Association
- Earth Guardians
- Earth Journalism Network
- Earth Science Women's Network
- Earth.org
- EarthEcho International
- Earthjustice
- Earthwatch Institute
- East Coast Shellfish Growers Association
- East Yard Communities for Justice
- Eastern Environmental Law Center
- Ecological Society of America
- Ecologically or Biologically Significant Marine Areas
- Editorial Freelancers Association
- Education Writers Association
- ELECTRA
- En Foco, Inc.
- Environmental and Energy Study Institute
- Environmental and Engineering Geophysical Society
- Environmental Defense Fund
- Environmental Justice Australia
- Environmental Justice for All
- Environmental Justice Foundation
- Environmental Law & Policy Center
- Environmental Law Alliance Worldwide
- Environmental Law Association
- Environmental Law Foundation
- Environmental Law Institute
- Environmental Leadership Program
- EnvironmentalScience.Org
- Estimating the Circulation and Climate of the Ocean, NASA
- Estuary & Ocean Science Center
- EurOcean
- EUROPARC Federation
- European Aquaculture Society
- European Ecological Federation
- European Marine Science Educators Association