- Academy of Sciences of the Czech Republic
- Academia Publishing House
- Archives and collections in the Czech Republic (National Archive Portal)
- Archives of the Office of the President of the Republic
- Archives of Science of the Polish Academy of Sciences and the Polish Academy of Sciences in Kraków
- Czech Archival Society
- National Archives
- Institute of History of Charles University and Archives of Charles University
- Central Archives of the Slovak Academy of Sciences
- Masaryk Museum in Hodonín
- Masaryk Museum in Lány
- T.G.M. Museum Rakovník
- Institute of T. G. Masaryk, o. p. s.
- Photographs of E. Beneš in the Šechtl & Voseček Museum of Photography in Tábor