- Radio Free Europe/Radio Liberty, Inc - Research Institute12
- Nóvé, Béla9
- Soviet Red Archives6
- Bortstieber, Gertrud5
- Samizdat Archives4
- Pallai, Péter3
- Balogh, Eva S.2
- Csákó, Mihály2
- Hanák, Péter2
- Radio Free Europe and Radio Liberty, Inc.2
- British Broadcasting Corporation, Written Archive Centre1
- Bíró, András1
- Cséry, László1
- Geréb, Anna1
- Great Britain, Foreign and Commonwealth Office1
- Hegedüs, András1
- Hungarian Ministry of the Interior1
- Open Media Research Institute1
- Privát Fotó és Film Alapítvány1
- Samizdat Archives of Radio Free Europe1