- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)30,053
- Samizdat Archives31
- Open Media Research Institute17
- Samizdat Archives of Radio Free Europe13
- Open Society Archives at Central European University11
- Radio Free Europe/Radio Liberty, Inc - Research Institute10
- Soviet Red Archives10
- Romm, Mikhail8
- Monitoring Unit7
- Chiaureli, Mikhail6
- Aizenberg, Alexander5
- Aleksandrov, Grigori5
- Bortstieber, Gertrud5
- Eisenstein, Sergei5
- Fokin, Vladimir5
- Pyriev, Ivan5
- Bosenko, Sergei4
- Germanika, Valeriya Gay4
- Kostomarov, Pavel4
- Razbezhkina, Marina4