The story
KB Arsenal was founded in 1711 by Tsar Peter I of Russia as a cannon foundry. Renamed to TsBK-7, the company created ICBMs between 1960 and 1980, after which it switched its focus to space research. It is the developer of over 80 spacecraft in the COSMOS series, including Russia's first nuclear power system satellites, the Kosmos 1818 and Kosmos 1867. It is the oldest Russian/Soviet design bureau connected to space research.
From Wikipedia’s article on Arsenal Design Bureau, shared under CC BY-SA 4.0.3