- Csákó, Mihály16
- Tsentralnaia Studiia Dokumentalnykh Filmov (TsSDF)12
- Lennauchfilm7
- Nóvé, Béla7
- Leningradskaia Studiia Dokumentalnykh Filmov (LSDF)5
- Pastor, Peter4
- Philipp, Tibor4
- Tsentrnauchfilm4
- Ukrainskaia Studiia Khronikalno-dokumentalnykh Filmov4
- Hanák, Péter3
- Hungarian Ministry of the Interior3
- Pallai, Péter3
- Ajtony, Árpád2
- Cséry, László2
- Geréb, Anna2
- Group Inconnu2
- Jakab, Lajos2
- Kievskaia Kinostudiia Nauchno-populiarnykh Filmov2
- Király, Béla2
- Open Society Archives at Central European University2