- Samizdat Archives21
- Radio Free Europe/Radio Liberty, Inc - Research Institute16
- Samizdat Archives of Radio Free Europe9
- Soviet Red Archives9
- Open Media Research Institute7
- Csákó, Mihály6
- Pastor, Peter5
- American Refugee Committee2
- Balogh, Eva S.2
- Fekete Doboz Alapítvány2
- Hanák, Péter2
- Monitoring Unit2
- Soros Foundation–Hungary2
- British Broadcasting Corporation, Written Archive Centre1
- Bíró, András1
- Pallai, Péter1
- Péter Forgács1
- Radio Free Europe and Radio Liberty, Inc.1
- Samizdat Archives at the RFE/RL Research Institute1
- Szekfű, András1