- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)254
- Héderváry, Claire de25
- Open Society Archives at Central European University25
- Samizdat Archives18
- Open Media Research Institute15
- Radio Free Europe/Radio Liberty, Inc - Research Institute9
- Samizdat Archives of Radio Free Europe8
- Soviet Red Archives8
- Csákó, Mihály7
- American Refugee Committee5
- Monitoring Unit4
- Pallai, Péter3
- Ajtony, Árpád2
- Fekete Doboz Alapítvány2
- Housden, Martyn2
- Kotkin, Stephen2
- Morris, Errol2
- Nóvé, Béla2
- Rohde, David2
- de Héderváry, Claire2