# 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
** Hong Kong - China Resources Gas, The Hong Kong and China Gas Company
* 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
** Hong Kong - Hongkong Electric, CLP Power
** Macau - Companhia de Electricidade de Macau
* 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
* Norway - Statnett
* 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, ScottishPower, 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
** Hong Kong - PCCW Limited, New World Telephone, Hutchison Telecom
** Macau - Companhia de Telecomunicações de Macau
* 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 Aktiengesellschaft [de]1&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
** Hong Kong - Water Supplies Department
** Macau - Macao Water
* 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