- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)1,531
- Héderváry, Claire de113
- Radio Free Europe/Radio Liberty, Inc - Research Institute19
- Soviet Red Archives8
- Csákó, Mihály5
- Samizdat Archives5
- Pallai, Péter4
- Hanák, Péter3
- Balogh, Eva S.2
- Bortstieber, Gertrud2
- Bíró, András2
- Gábor Magos2
- Hutton, Joseph Bernard2
- International Commission of Jurists (1952- )2
- Nóvé, Béla2
- Open Media Research Institute2
- Open Society Archives at Central European University2
- Waggner, George2
- Abramovitch, Raphael R.1
- Acton, John Emerich Edward Dalberg Acton1