• ABB Generation Vasteras
  • ABB Marine
  • ALSTOM Power
  • CDRiA Pipeline Services, The Oil Pipeline Operating Company "Przyjaźń" PERN, Płock
  • Eaton Controls Gdansk
  • ESP. Energoprojekt Warsaw
  • Filar S.A
  • GALMEKO Gdynia
  • Gdansk Shipyard
  • Group of Water Power Stations Porabka Zar
  • ITS Polska
  • LG Electronics
  • Petrobaltic
  • Pumped Storage Power Plants (ESP) Warsaw
  • Purac Water
  • PŻB
  • Sendzimir Ironworks Cracow
  • Therma Gdansk
  • VATech Escher Wyss (Austria/Germany)
  • Voith Siemens Hydro Generation (Austria/Germany)
  • ZRE Gdansk