- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)138
- Lennauchfilm3
- Tsentralnaia Studiia Dokumentalnykh Filmov (TsSDF)3
- Geréb, Anna2
- Radio Free Europe/Radio Liberty, Inc - Research Institute2
- Agoston, Tom1
- Armianskaia Studiia Dokumentalnykh Filmov1
- Azerbaijanfilm1
- Berliner, Joseph S.1
- Bisco, Jim1
- Csákó, Mihály1
- Cséry, László1
- Czechoslovak Unit1
- Davidenko, G.1
- Davies, Robert William1
- Farocki, Harun1
- Gillingham, John1
- Goldsmith, Edward1
- Gruzinskaia Studiia Nauchno-populiarnykh i Dokumentalnykh Filmov1
- Kinostudiia Nauchno-populiarnykh i Dokumentalnykh Filmov Uzbekistana1