- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)1,014
- Radio Free Europe/Radio Liberty, Inc - Research Institute19
- Samizdat Archives18
- Csákó, Mihály14
- Tsentralnaia Studiia Dokumentalnykh Filmov (TsSDF)12
- Soviet Red Archives10
- Nóvé, Béla8
- Philipp, Tibor7
- Monitoring Unit6
- Open Media Research Institute6
- Pastor, Peter6
- Gábor Magos5
- Jakab, Lajos5
- Lennauchfilm5
- Samizdat Archives of Radio Free Europe5
- Group Inconnu4
- Hanák, Péter4
- Judith Gimes4
- Lanzmann, Claude4
- Delannoy, Gilles3