Institute "AtomEnergoPoekt" (http://www.spbaep.ru) is the project institute. They desigh buildings for nuclear power-stations . Most nuclear stations were built using their projects (from Obninsk(Russia) to Busher(Iran)).
The institute was found in 1929 in Leningrad. The name of the institute was Lenigrad brunch of State Trust "EnergoStroy" (Power construction). At that time they disigned hydroelectric power-stations and heat stations.