- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)3,694
- Radio Free Europe/Radio Liberty, Inc - Research Institute19
- Samizdat Archives19
- Csákó, Mihály14
- Tsentralnaia Studiia Dokumentalnykh Filmov (TsSDF)12
- Soviet Red Archives10
- Nóvé, Béla8
- Open Media Research Institute8
- Philipp, Tibor7
- Gorbachev, Mikhail Sergeevich6
- Jakab, Lajos6
- Monitoring Unit6
- Pastor, Peter6
- Lennauchfilm5
- Samizdat Archives of Radio Free Europe5
- Geller, Mikhail4
- Group Inconnu4
- Hanák, Péter4
- Hegedüs, András4
- Lanzmann, Claude4