• Bulgarian Ship Hydrodynamics Centre - Conducts research in ship and offshore hydrodynamics, coastal hydraulics, aerodynamics, environment, water transport and information technology.
  • Wide Field Plate Database - Contains the descriptive information for the astronomical wide-field (>1°) photographic observations stored in numerous archives all over the world.
  • IEEE Bulgaria - Regional section of the institute of electrical and electronics engineers.
  • Bulgarian Academy of Sciences - Board, central administration and research units.