- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)3,548
- Radio Free Europe/Radio Liberty, Inc - Research Institute21
- Samizdat Archives18
- Csákó, Mihály14
- Polgári Védelem Országos Parancsnokság11
- Soviet Red Archives10
- Nóvé, Béla9
- Visnews8
- UPTIN7
- Amal'rik, Andrei6
- Gábor Magos5
- Samizdat Archives of Radio Free Europe5
- Ajtony, Árpád4
- Judith Gimes4
- Pallai, Péter4
- Bieńkowski, Władysław3
- Gombrowicz, Witold3
- Hanák, Péter3
- Hegedüs, András3
- Hungarian Ministry of the Interior3