- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)100
- Samizdat Archives15
- Open Media Research Institute12
- Samizdat Archives of Radio Free Europe8
- Radio Free Europe and Radio Liberty, Inc.3
- Soviet Red Archives3
- Monitoring Unit2
- Open Society Archives at Central European University2
- Aimanov, Shaken1
- Alfred A. Reisch1
- Bogdanova, Milana1
- Butts, Antony1
- Csákó, Mihály1
- Demchenko, E. P.1
- Eisenstein, Sergei1
- Forced Migration Projects1
- German, Aleksei1
- Goba, Kaspars1
- Goldovskaia, Marina1
- Hanák, Péter1