- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)5,495
- Open Society Archives at Central European University22
- Héderváry, Claire de16
- Capra, Frank7
- Vachnadze, Georgii Nikolaevich3
- Geréb, Anna2
- Hazan, Barukh2
- Hungarian Ministry of the Interior2
- Kater, Michael H.2
- Makavejev, Dusan2
- Matous̆, Milan2
- Panfilov, Artem Flegontovich2
- PeriscopeFilm2
- Pohle, Heinz2
- Sharma, Rakesh2
- Shevchik, E. V.2
- Solomon, Alexandru2
- Tsentralnaia Studiia Dokumentalnykh Filmov (TsSDF)2
- Waggner, George2
- Anstey, Edgar1