List Of Public Utilities
This is a list of public utilities.
Natural gas companies
Barbados - National Petroleum Corporation, Barbados National Oil Company Ltd.
Brazil - Comgás
Canada - List of Canadian natural gas companies
China - China Natural Gas, Towngas China 
Egypt - EGAS
France - List of French natural gas companies
Japan - List of Japan natural gas companies
Malaysia - Petronas
Pakistan - Sui Northern Gas Pipelines Limited, Sui Southern Gas Company Limited
Spain - Endesa, Iberdrola, Naturgy, Repsol, TotalEnergies
Taiwan - CPC Corporation
Thailand - PTT
United Kingdom - List of British natural gas companies
United States - List of United States natural gas companies
Electricity companies
Australia - Lumo Energy, EnergyAustralia, Origin Energy, TRUenergy, SEC Victoria (fmr.), Powercor, Click Energy, AGL, Alinta, Citipower, ETSA Utilities, Western Power, Country Energy, Energex, Integral Energy, ActewAGL, Ergon Energy, Power and Water
Bangladesh - Summit Group, Power Grid Company of Bangladesh Ltd, Electricity Generation Company of Bangladesh Ltd- Barbados - Barbados Light and Power Company Ltd.
Belgium - Electrabel
Botswana - Botswana Power Corporation- Brazil - Eletrobrás, AES Eletropaulo, CPFL Energia, Celesc, CEMIG, CESP, Copel, Light S.A., CEEE, Energisa
- Canada - List of Canadian electric utilities
- China - State Grid Corporation, China Southern Power Grid
Cuba - Union Electrica
Czech Republic - CEZ Group- Egypt - Egyptian Electricity Holding Company
Ethiopia - Ethiopian Electric Power Corporation
Finland - Fortum- France - EDF, Engie, List of French electric utilities
Germany - E.ON, RWE, EnBW
Greece - PPC (DEI) (Greek Hydro), List of electric power companies in Greece
Iceland - Orkuveita Reykjavíkur
India - List of Electricity Organizations in India, India: NTPC, Power Grid Corporation of India Ltd.(PGCIL), KPTCL, MSEB, Tata Power, BSES Rajdhani Power Ltd New Delhi, BSES Yamuna Power Ltd New Delhi
Indonesia - Perusahaan Listrik Negara
Italy - Enel, Edison, A2A, ACEA, Hera, Sorgenia- Japan - Kansai Electric Power, Tokyo Electric Power, Chubu Electric Power, Chugoku Electric Power, Hokuriku Electric Power, Hokkaido Electric Power, Kyushu Electric Power, Tohoku Electric Power, Shikoku Electric Power, Okinawa Electric Power, J-POWER
Libya - Gecol- Malaysia - Tenaga Nasional Berhad
New Zealand - Genesis Energy, Mercury Energy, Meridian Energy, Transpower
Philippines - Meralco
Singapore - Singapore Power
South Africa - Eskom
South Korea - Korea Electric Power Corporation- Spain - Endesa, Iberdrola, Naturgy, Repsol, TotalEnergies
Sweden - Vattenfall- Taiwan - Taiwan Power Company
- Thailand - Electricity Generating Authority of Thailand, Provincial Electricity Authority, Metropolitan Electricity Authority
- United Kingdom - EDF Energy, E.ON UK, National Grid, RWE npower, Scottish Power, Scottish and Southern Energy, Drax Power and Good Energy, Ecotricity, Alkane Energy, Ovo Energy
- United States - List of United States electric companies
Telephone companies
- Australia - Telstra, Optus, Vodafone, Hutchison Telecom(3G network), AAPT, Primus Telecom, Nextgen Networks, Agile Communications, TransACT
- Barbados - Liberty Latin America
- Botswana - Botswana Telecommunications Corporation
- Brazil - Brasil Telecom, Oi, Vivo, TIM, Telefónica Brasil
- Canada - List of Canadian telephone companies
- China
- Cuba - ETECSA
- Egypt - telecom egypt, orange egypt, vodafone egypt, etisalat egypt
- France - List of French telephone companies
- Germany - Deutsche Telekom, Arcor AG, Freenet AG, T-Mobile, Vodafone Germany,1&1 Aktiengesellschaft1&1 Drillisch
- Greece - Hellenic Telecommunication Organization
- India - Airtel, BSNL, MTNL, Vodafone Idea, Jio
- Indonesia - Telkom
Ireland - Eircom, BT Ireland, Smart Telecom, Vodafone Ireland, Hutchison 3G, O2 (Telefónica Europe)- Italy - List of Italian telephone companies
- Japan - NTT, (NTT East, and NTT West)
- Malaysia - Telekom Malaysia
- Pakistan - Mobilink, Ufone, Telenor, Zong
- Philippines - Philippine Long Distance Telephone Company
- Singapore - SingTel
- South Africa - Telkom
- Spain - Telefónica, Orange, Vodafone, Yoigo
- Taiwan - Chunghwa Telecom, FarEasTone, Taiwan Mobile
- Thailand - TOT, CAT Telecom, True Corporation, DTAC, AIS, JAS Mobile
- United States - List of United States telephone companies
Water companies
- Australia - Unitywater, Queensland Urban Utilities
- Barbados - Barbados Water Authority
- Botswana - Water Utilities Corporation
- Brazil - Sabesp, Sanepar, Copasa, Semasa
- China
- Egypt - Holding company for water and wastewater, Alexandria Water Company
- France - SAUR, Suez Environnement, Veolia Environnement
- Greece - EYDAP
- Ireland - Irish Water
- Italy - Hera, Seabo
- Philippines - Maynilad Water Services, Manila Water Company, Inc., Metropolitan Waterworks and Sewerage System
- Spain - Canal de Isabel II, Grupo Agbar
- Taiwan - Taiwan Water Corporation
- United Kingdom - List of United Kingdom water companies
- United States - List of United States water companies
Steam companies
- Note: some of these companies are still trading, others are listed here for historical interest.
- American District Steam Company
- Boston Heating Company
- Compagnie Parisienne de Chauffage Urbain
- Detroit Thermal
- New York Steam Company, now Con Edison Steam Operations
- Trigen Energy Corporation
Former hydraulic power companies
- Itaipú Binacional * Brazil
- Liverpool Hydraulic Power Company * UK
- London Hydraulic Power Company, defunct since 1977 * UK
See also
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