Signed by:
- International Press Institute (IPI)
- Media and Law Studies Association (MLSA)
- PEN International
- Article 19
- Articolo 21
- Confederation of Progressive Trade Unions of Turkey - Turkish Press, Broadcasting and Printer Workers’ Union
- Danish PEN
- English PEN
- European Centre for Press and Media Freedom (ECPMF)
- Freedom House
- French PEN
- Georgia PEN
- German PEN
- Human Rights Foundation of Turkey
- Icelandic PEN
- Independent Chinese PEN Centre
- Index on Censorship
- Kurdish PEN
- Latvia PEN
- Life Memory Freedom Association
- Lithuanian PEN
- Moscow PEN
- New Zealand Society of Authors Te Puni Kaituhi o Aotearoa (PEN NZ) Inc
- Norwegian PEN
- Osservatorio Balcani e Caucaso Transeuropa (OBCT)
- PEN America
- PEN Belgium/Flanders
- PEN Center for German Language Writers Abroad
- PEN Eritrea
- PEN Netherlands
- PEN Nicaragua
- PEN Québec
- PEN Suisse Romand
- PEN Turkey
- PEN Ukraine
- Press in Arrest
- Punto24 Association for Independent Journalism (P24)
- Romanian PEN
- San Miguel de Allende PEN
- Scottish PEN
- South East Europe Media Organisation (SEEMO)
- St Petersburg PEN
- Swedish PEN
- Swedish PEN
- Swiss-German PEN
- Uganda PEN
- Wales PEN Cymru