PROTO’s home, the Noblessner district, is situated on the seaside in Tallinn near the Seaplane Harbour museum. It was here in 1912 that two businessmen from St. Petersburg established the most important submarine factory in Tsarist Russia. Emanuel Nobel (Nobel Prize founder Alfred Nobel’s nephew) and Arthur Lessner combined their surnames to name the factory ‘Noblessner’. Between 1913 and 1917, altogether twelve modern submarines were built here. When Estonia gained independence in 1918, submarine production at Noblessner came to an end, but shipbuilding and shipyard operations continued until August 2018.
In 2001, Noblessner was acquired by BLRT Grupp, who together with their business partners, is involved in the development of the area. Noblessner, with its unique architectural heritage, has become a bustling quayside community open to people and the sea.