- Samizdat Archives31
- Open Media Research Institute24
- Radio Free Europe/Radio Liberty, Inc - Research Institute21
- Open Society Archives at Central European University16
- Csákó, Mihály13
- Samizdat Archives of Radio Free Europe13
- Soviet Red Archives11
- Nóvé, Béla10
- Monitoring Unit8
- Philipp, Tibor6
- American Refugee Committee5
- Bortstieber, Gertrud5
- Fekete Doboz Alapítvány5
- Jakab, Lajos5
- Pastor, Peter5
- Bartók, István3
- Group Inconnu3
- Pallai, Péter3
- Radio Free Europe and Radio Liberty, Inc.3
- Witness, Inc.3