- Open Society Archives at Central European University62
- Samizdat Archives25
- Radio Free Europe/Radio Liberty, Inc - Research Institute20
- Open Media Research Institute18
- Samizdat Archives of Radio Free Europe12
- Soviet Red Archives10
- Csákó, Mihály8
- American Refugee Committee5
- Pastor, Peter5
- Pallai, Péter4
- Monitoring Unit3
- Balogh, Eva S.2
- Fekete Doboz Alapítvány2
- Hanák, Péter2
- Radio Free Europe and Radio Liberty, Inc.2
- Soros Foundation–Hungary2
- Ajtony, Árpád1
- Bortstieber, Gertrud1
- British Broadcasting Corporation, Written Archive Centre1
- Bruner, Richard W.1