- Radio Free Europe/Radio Liberty, Inc - Research Institute21
- Samizdat Archives19
- Csákó, Mihály14
- Soviet Red Archives10
- Tsentralnaia Studiia Dokumentalnykh Filmov (TsSDF)10
- Nóvé, Béla8
- Gábor Magos5
- Lennauchfilm5
- Open Media Research Institute5
- Samizdat Archives of Radio Free Europe5
- Judith Gimes4
- Pastor, Peter4
- Philipp, Tibor4
- Hanák, Péter3
- Hungarian Ministry of the Interior3
- Pallai, Péter3
- Radio Free Europe and Radio Liberty, Inc.3
- Tsentrnauchfilm3
- Varga, László3
- Ajtony, Árpád2