• National energy company  Ukrenergo, Kyiv (laboratory, training center)
  • Dniepro power station National energy company  Ukrenergo,  city of Zaporizhia
  • Donbass power station National energy company  Ukrenergo,  Donetsk, Makeyevka, Mariupol
  • Western power station National energy company  Ukrenergo, Lviv, Lutsk, Stryi
  • Crimea power station National energy company   Ukrenergo Simferopol, Dzhankoy, Feodosiya
  • Northern power station National energy company  Ukrenergo, Kharkiv, Poltava, Sumy
  • Central power station National energy company  Ukrenergo, Kyiv
  • Southwest power station National energy company  Ukrenergo, Vinnytsya, Kamyanets-Podolsky, Khmelnytsky, Ternopil, Chernivtsi
  • Southern power station National energy company  Ukrenergo, Odessa, Nikolaev, New Kakhovka
  • National joint-stock company Naftogaz of Ukraine, Tekhdiagaz, Donetsk, Lviv, Cherkasy
  • National enterprise High-voltage electrical networks, Kyiv, Donetsk
  • Donbass enterprise of start-up, adjustment, technology improvement and operations on power stations and networks, Gorlivka
  • National enterprise Ukrzaliznytsia, Dnipro railway, city of Dnipropetrovsk
  • National enterprise Ukrzaliznytsia, Southern Railway, Poltava, Kharkiv, Kupyansk, Lozova
  • National enterprise Ukrzaliznytsia, South-Western Railway, Fastov, Kalynivka,Vinnytsia region.
  • National enterprise Ukrzaliznytsia, Odessa Railway, Shevchenkove
  • National nuclear energy generating company Energoatom, Kyiv
  • Rivne nuclear power plant, Kuznetsovsk
  • Khmelnitsky nuclear power plant, Neteshyn
  • South-Ukrainian nuclear power plant, Yuzhnoukrayinsk
  • The Chernobyl nuclear power plant, Chernobyl
  • Tashlyk pumped-storage hydroelectricity, Yuzhnoukrayinsk
  • Dneprodzerzhinsk  thermoelectric power station, Dneprodzerzhynsk
  • DTEK, Zuevsk  thermoelectric power station, Zugres, Donetsk region
  • Krym thermoelectric power station, Simferopol
  • DTEK, Transdnipro  thermoelectric power station, Dnepropetrovsk
  • Kharkiv  thermoelectric power station-5, Kharkiv region
  • Public joint-stock company Vinnytsiaoblenergo, Vinnytsia
  • Public joint-stock company Dniprooblenergo DTEK, Dnipropetrovsk, Krivyi Rig
  • Public joint-stock company Dniprooblenergo DTEK, Gorelektroseti, Dnipropetrovsk
  • Public joint-stock company Donetskoblenergo, Gorlivka, Training Center
  • Public joint-stock energy company Zhytomyroblenergo, Zhytomyr
  • Public joint-stock energy company Zakarpatieoblenergo, Uzhgorod
  • Public joint-stock company Kyivoblenergo, Kiev, Bila Tserkva
  • Public joint-stock company Kirovogradoblenergo, Kirovograd
  • Public joint-stock company Krymenergo, Simferopol
  • Lugansk Energy Association, Lisichansk, Starobelsk
  • Public joint-stock energy company Nikolaevoblenergo,  Nikolaev, Nova Kakhovka
  • Public joint-stock energy company Odessaoblenergo, Odessa, Izmail, Belgorod-Dniesterovsky
  • Public joint-stock company Prykarpattyaoblenergo, Ivano-Frankivsk
  • Public joint-stock company Rivneoblenergo, Rivne
  • Public joint-stock company Sevastopolenergo, Sevastopol
  • Limited company Service-Invest, Donetsk
  • Public company Chernigivoblenergo, Chernygiv, Pryluky
  • Public joint-stock energy company Chernovtsyoblenergo, Chernivtsy
  • Public joint-stock energy company Khmelnitskoblenergo, Khmelnytsky
  • Public joint-stock energy company Khersonoblenergo, Kherson
  • Limited company ABB, Kyiv
  • Kievpribor software (MRZS production), Kyiv
  • Research and production company Hartron-Inkor (production PM PZA DIAMANT), Kharkiv
  • Public company Electrotechnical Plant (RELSIS, RZL production), Kyiv
  • Automation and Protection Ltd., Donetsk
  • Public company AZOT, Cherkassy
  • Limited liability partnership Aktobe Prylad, Kazakhstan, Aktobe city
  • Limited company ARES, Kharkiv
  • Limited company Budshlyahmash, Kyiv
  • LLC High Voltage Union Ukraine, Rivne
  • LLC Greentek Energy, Simferopol
  • LLC Garant-Energo, Kyiv
  • CJSC  Zaporozhkoks, Zaporizhia
  • CJSC ISTIL (Ukraine) Mini metallurgical Plant, Donetsk
  • ISTEK Ltd. (Horlivka coke plant), Donetsk
  • Interpipe Niko Tube (Nikopol Pipe Plant), Nikopol
  • Kyiv Energy Construction Company Ltd, Kyiv
  • Business enterprise Elektropivdenzahidmontazh CP-6, Lviv
  • Lysychansk Oil Refinery (LINIK), Lysychansk
  • Metinvest - Holding Ltd., Donetsk
  • Odessa Port Plant PJSC, Yuzhny, Odessa region
  • Promavtomatika ltd, Kyiv
  • RZA-Systems Ltd., Kyiv
  • Rivne High-voltage equipment plant, Rivne
  • SVS-Dnipro PJSC, Kyiv
  • SICHENERGO  ltd, Kyiv
  • Tekhsoyuz-2004 Ltd., Zaporizhia
  • Titan Ukraine Ltd., Crimea, Armyansk
  • Trading House EMB (Energomashvin), Kyiv
  • LLC UgleEnergoMontazh, Donetsk
  • Ukrspetskomplekt STC Ltd., Kyiv
  • Chernigovvodokanal, Chernygiv
  • Elektroyuzhatommontazh Corporation, JSC Kharkiv
  • Elektroyuzhmontazh JSC, Kharkiv
  • Elektroyuzhmontazh Corp. Ltd., Donetsk
  • Elektroyuzhmontazh Ltd., Kuznetsovsk
  • Ektrak Service LLC, Armenia
  • Electra Ltd., Zaporizhia
  • Electric Networks of Armenia CJSC, Armenia
  • LLC Elektronaladka, Donetsk
  • ElKor Electrical Corporation, Kharkiv
  • ELTEL Netvorsk Ltd, Sweden, representative office in Kyiv
  • EMV AG Energy Ltd., Kyiv, Lviv
  • Energy solutions Ltd., Kyiv
  • ENPASELECTRO, Kyiv
  • LLC Etalon-Pribor, Kharkiv
  • Dnepropetrovsk Railway transport university (for training purposes)
  • NTU Kharkov polytechnic Institute (for training purposes)
  • National University Lviv Polytechnic (for training purposes)
  •  Kharkov University of Agriculture (for training purposes)
  • Kharkov municipal economy university (for training purposes)
  • and other companies