- Radio Free Europe/Radio Liberty, Inc - Research Institute17
- Samizdat Archives17
- Csákó, Mihály9
- Soviet Red Archives9
- Open Media Research Institute6
- Jakab, Lajos5
- Nóvé, Béla5
- Pastor, Peter5
- Philipp, Tibor5
- Samizdat Archives of Radio Free Europe5
- Monitoring Unit4
- Balogh, Eva S.2
- Group Inconnu2
- Hungarian Ministry of the Interior2
- Pallai, Péter2
- Privát Fotó és Film Alapítvány2
- Ajtony, Árpád1
- American Refugee Committee1
- British Broadcasting Corporation, Written Archive Centre1
- Cséry, László1