The following is the list of IENE's current corporate membership.
COMPANY/ORGANIZATION NAME
- Administrator of Renewable Energy Sources and Guarantees of Origin (DAPEEP SA) - Greece
- AERS (Energy Agency of the Republic of Serbia)
- AES Corporation (Bulgaria)
- ASPROFOS
- ATHENS INTERNATIONAL AIRPORT
- ATHEX GROUP
- Aurora Energy Research
- BANK OF GREECE
- BP Greece SA
- Clarion Partners Owners Engineer (Serbia)
- CORAL S.A.
- CORINTH PIPEWORKS
- CREDITCARB Ltd.
- DELOITTE BUSINESS SOLUTIONS ΑΕ
- DEPA Commercial
- EDF EN HELLAS A.E.
- ELECTRIP HELLAS Ltd
- ELECTRICITY AUTHORITY OF CYPRUS
- ELINOIL SA
- ELPEDISON S.A.
- ELVAL SA
- ENAON EDA
- Energy Management Institute (EMI) - Bulgaria
- ENERGEAN OIL & GAS
- ENERTA
- ENSCO SA
- ENTEKA SA
- EPIAS (Enerji Piyasaları İşletme A.Ş)
- EPS -PE Electric Power Industry of Serbia
- EUNICE TRADING SA
- EUROBANK
- EVDITI Ltd
- EXERGIA
- EYDAP
- FORENA Energy SA
- GASTRADE SA
- GOLDECO SA
- GRANT THORNTON
- Green (Greek Environmental &Energy Network Single Member SA)
- GREEN TOP ENERGY
- HELLENIC CABLES
- HELLENIC ELECTRICITY DISTRIBUTION NETWORK OPERATOR S.A. (HEDNO)
- HELLENIC ENERGY COMPETENCE CENTER (ECC)
- Hellenic Energy Exchange S.A. (HEnEx S.A.)
- HELLENIC GAS TRANSMISSION SYSTEM OPERATOR S.A. (DESFA)
- HELLENIC HALYVOURGIA S.A.
- HELLENiQ ENERGY
- HEREMA
- HERON SA
- HITACHI ENERGY SA
- Independent Bulgarian Energy Exchange (IBEX)
- Independent Power Transmission Operator S.A. (IPTO)
- ITA SA
- JP SRBIJAGAS Novi Sad - Serbia
- KYRIAKIDES GEORGOPOULOS LAW FIRM
- LDK Consultants
- McKINSEY Ltd
- MESSARITIS RENEWABLES LTD
- Mirova Helllas SA
- MICHANIKI SA
- MOLGAS ENERGY Greece SA
- MOTOROIL
- Metlen Εnergy & Metals SA
- NATIONAL BANK OF GREECE
- NIS (Serbia)
- NORTON ROSE FULBRIGHT GREECE
- OLYMPIA GROUP SA
- ONE-CYCLE CONTROL, INC
- PIRAEUS BANK
- PPC GROUP
- PPC RENEWABLES
- Praxis Factor Telecom SA
- Principia Energy Services
- PROMETHEUS GAS
- PWC
- Regulatory Authority for Energy, Waste and Water (RAAEY)
- Romania Energy Centre (ROEC)
- SARAKAKIS Group of Companies
- STARVERT Energy GmbH
- TEMPORARY WORKS DESIGN GREECE Μ.I.K.E. (TWD)
- TERNA ENERGY SA
- TRITOXO PROJECT MANAGEMENT
- UNICEN (Hellenic Union of Industrial Consumers of Energy)
- VOLTON SA
- VSB RENEWABLE ENERGY HELLAS Ε.Π.Ε.