- Radio Free Europe/Radio Liberty, Inc - Research Institute20
- Samizdat Archives19
- Csákó, Mihály9
- Soviet Red Archives9
- Nóvé, Béla6
- Open Media Research Institute5
- Philipp, Tibor5
- Samizdat Archives of Radio Free Europe5
- Pastor, Peter4
- Pallai, Péter3
- Balogh, Eva S.2
- Group Inconnu2
- Hanák, Péter2
- Hungarian Ministry of the Interior2
- Monitoring Unit2
- Radio Free Europe and Radio Liberty, Inc.2
- Ajtony, Árpád1
- American Refugee Committee1
- British Broadcasting Corporation, Written Archive Centre1
- Bíró, András1