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 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
 * 🇭🇰 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