6632 individuals and 1469 organizations have added their names to the declaration.
- Firenze University Press
- INRA Animal Physiology Department France
- SPARC Europe
- American Psychiatric Publishing, Inc. United States
- Committee on Institutional Cooperation (CIC)
- Open Society Institute United States
- BioMed Central Ltd.
- International Consortium for the Advancement of Academic Publication
- Public Sphere Project (Computer Professionals for Social Responsibility) United States