Gas companies List of American natural gas companies List of British natural gas companies List of Canadian natural gas companies List of French natural gas companies List of German natural gas companies List of Mexican natural gas companies Electricity companies List of American electric companies List of Australian electric companies List of Canadian electric utilities Greece: DEI (Greek Hydro) Telephone companies List of American telephone companies List of Canadian telephone companies Greece: Hellenic Telecommunication Organization (OTE) Italy: TIM Japan: NTT, (NTT East, and NTT West) Spain: Telefonica Water companies List of American water companies See also Lists of companies
