- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)5,692
- Samizdat Archives20
- Radio Free Europe/Radio Liberty, Inc - Research Institute9
- Soviet Red Archives8
- Samizdat Archives of Radio Free Europe6
- Dudko, Dmitrii5
- Open Media Research Institute4
- Kopelev, Lev3
- Radio Free Europe and Radio Liberty, Inc.3
- Zinoviev, Aleksandr3
- Avtorkhanov, Abdurakhman2
- Chukovskaia, Lidiia Korneevna2
- Geréb, Anna2
- Hanák, Péter2
- Krivitskii, Aleksandr IUrʹevich2
- Levitin-Krasnov, A. E.2
- Lisavtsev, Emilii Ivanovich2
- Open Society Archives at Central European University2
- Tsentralnaia Studiia Dokumentalnykh Filmov (TsSDF)2
- Vachnadze, Georgii Nikolaevich2