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 -
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
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
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
- Off-the-grid