- Radio Free Europe/Radio Liberty, Inc - Research Institute20
- Samizdat Archives18
- Csákó, Mihály14
- Tsentralnaia Studiia Dokumentalnykh Filmov (TsSDF)12
- Soviet Red Archives10
- Nóvé, Béla8
- Open Media Research Institute6
- Philipp, Tibor6
- Lennauchfilm5
- Pastor, Peter5
- Samizdat Archives of Radio Free Europe5
- Group Inconnu3
- Hanák, Péter3
- Hungarian Ministry of the Interior3
- Monitoring Unit3
- Pallai, Péter3
- Radio Free Europe and Radio Liberty, Inc.3
- Tsentrnauchfilm3
- Varga, László3
- Ajtony, Árpád2