Government Members
- The Province of British Columbia
- The State of California
- Canada
- The Republic of Chile
- Cross River State, Nigeria
- Fiji
- The French Republic
- Gullah/Geechee Nation
- The State of Hawaii
- Iceland
- City of Imperial Beach, California
- The State of New York
- Netherlands
- New Zealand
- Nisqually Indian Tribe
- The State of Oregon
- The City of Portland, OR
- The Province of Quebec
- Quileute Nation
- Quinault Indian Nation
- The City of Seattle, WA
- The Suquamish Tribe
- Sweden
- Tsleil-Waututh Nation
- United Arab Emirates
- The City of Vancouver, Canada
- The State of Virginia
- The State of Washington
Affiliates
Association and Initiatives
Intergovernmental Organizations
- Secretariat of the Pacific Regional Environment Programme (SPREP)
- Latin America Ocean Acification Network (LAOCA)
Research and Academic Institutions
- Alaska Ocean Acidification Network
- California Ocean Science Trust
- Center for Ocean Solutions
- Edaphic Scientific
- Hakai Institute
- New Zealand Ocean Acidification Community (NZOAC)
- Ocean Networks Canada
- Ocean Sanctuaries
- Scripps Institution of Oceanography
- Tanzania Fisheries Research and Academic Institutions Institute
- University Cote D’Azur
- University of Hawaii Manoa School of Ocean and Earth Science and Technology (SOEST)
- University of Otago (OA Research and Academic Institutions Theme)
- Washington Ocean Acidification Center (WOAC)
Tribal Commission
