Sources
Trade unions
- Athens Daily Newspaper Publishers Association
- Association of Advertising Companies in Greece (EDEE)
- Association of Regional Press Publishers
- Hellenic Union of Editors of Periodical Press (HUEPP)
- Hellenic Management Association (EEDE)
- Hellenic Union of Radio Technicians
- Online Publishers Association
- Union of Regional Televisions in Greece
- Union of Owners of Athenian Private Radio Stations
- Union of Technicians of Private Television in Attica
- ERT’s personnel union POSPERT
Journalists and media associations
- Association of Foreign Correspondents
- Athens Daily Newspaper Journalists’ Union (ESIEA)
- Association of Photojournalists
- The Union of Journalists of Daily Newspapers of Macedonia-Thrace
- The Union of Journalists of Daily Newspapers of Peloponnesus
- Journalists Association of Thessaly and Stereas Ellados
- Journalists of Magazine Press
- The Hellenic Union of Editors of Periodical Press
- Panhellenic Federation of Journalists' Unions (POESY)
News agencies
Audience measurement organisations