- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)46
- Radio Free Europe/Radio Liberty, Inc - Research Institute13
- Samizdat Archives12
- Soviet Red Archives9
- Samizdat Archives of Radio Free Europe8
- Héderváry, Claire de7
- Bortstieber, Gertrud4
- Open Society Archives at Central European University4
- Lewytzkyj, Borys3
- Open Media Research Institute3
- Szekfű, András3
- Glawogger, Michael2
- Nóvé, Béla2
- Rohde, David2
- Soros Foundation–Hungary2
- Alfred A. Reisch1
- Analytic Research Department1
- Andreas Sager, Daniel1
- Arshunetsʻi, Sona1
- Bak, Gamma1