Energy
- casadosventos.com.br
Casa dos Ventos
Brazilian renewable energy company
- cmpco.com
Central Maine Power Company
electric utility in Maine, United States
- ceb.lk
Ceylon Electricity Board
state-owned power company in Sri Lanka
- cspc.co.in
Chhattisgarh State Power Generation Company Limited
government-owned Indian energy company
- energia.co.jp
Chugoku Electric Power Transmission & Distribution Company
Japanese energy company
- clicksgroup.co.za
Clicks Group
South African energy company
- colbun.cl
Colbun S.A.
Chilean energy company
- copel.com
Companhia Paranaense de Energia
Brazilian electric utility
- concordnewenergy.com
Concord New Energy
Global renewable energy company
- conocophillips.com
ConocoPhillips
American oil and gas company
- consolenergy.com
Consol Energy
American energy company
- cornwallelectric.com
Cornwall Electric
electricity utility in Ontario, Canada
- cosan.com.br
Cosan
Brazilian energy company
- cotabatolight.com
Cotabato Light and Power Company
electric company based in Cotabato City, Philippines
- cowboyspace.com
Cowboy Space Corporation
renewable energy company
- delekus.com
Delek US
energy company with assets in petroleum refining, logistics, asphalt, renewable fuels and convenience store retailing
- gruppodolomitienergia.it
Dolomiti Energia
energy company in Italy
- drukgreen.bt
Druk Green Power Corporation
electricity utility company that operates and maintains hydropower assets of Bhutan
- dtek.com
DTEK
Ukrainian energy company
- dufercoenergia.com
Duferco Energia
Italian energy company
- progress-energy.com
Duke Energy Florida
American Power company
- eon.dk
E.ON Danmark
energy company in Denmark
- eon.de
E.ON Energie Deutschland
German energy company
- e-regio.de
e-regio
regional energy company in Germany
- ecotricity.co.uk
Ecotricity
green energy company based in Stroud, Gloucestershire, England
- edfenergy.com
EDF Energy
energy company in the United Kingdom
- edison.it
Edison
Italian electric utility company
- edp.com.br
EDP Espírito Santo
energy company in Brazil
- edpr.com
EDP Renewables North America
North American energy company
- enefit.ee
Eesti Energia
Estonian energy company
- egehaina.com
EGE Haina
Dominican energy company
- el5-energo.ru
EL5-Energo
Russian energy company
- electricafurnizare.ro
Electrica Furnizare
Romanian electric utility
- electrica.ro
Electrica
Romanian electric utility
- edm.co.mz
Electricidade de Moçambique
Mozambique's publicly owned electricity company
- edf.fr
Électricité de France
French multinational electric utility company
- eac.com.cy
Electricity Authority of Cyprus
energy company in Cyprus
- egco.com
Electricity Generating Public Company Limited
Thai electricity company
- electris.lu
Electris
energy company in Luxembourg
- eks.ch
Elektrizitätswerk des Kantons Schaffhausen
Swiss energy company
- ewr-energie.com
Elektrizitätswerke Reutte AG
regional energy company
- ers.ba
Elektroprivreda Republike Srpske
Bosnian state-owned integrated power company
- eps.rs
Elektroprivreda Srbije
Serbian energy company
- elgas.com.au
ELGAS
Australian oil and gas company
- elin.gr
Elinoil Hellenic Petroleum Company S.A.
Greek energy company
- emba.kz
Embamunaygas
oil and gas company
- enbw.com
EnBW
German energy company
- endesa.com
ENDESA ENERGIA RENOVABLE, SL
Spanish energy company