GTE Corporation, formerly General Telephone & Electronics Corporation (1955–1982), was the largest independent telephone company in the United States during the days of the Bell System. The company operated from 1926, with roots tracing further back than that, until 2000, when it was acquired by Bell Atlantic; the combined company took the name Verizon.
Primo Water Corporation is an American-Canadian water company offering multi-gallon bottled water, water dispensers, self-service refill water machines, and water filtration appliances. The company is headquartered in Tampa, Florida, and services residential and commercial customers across the United States, Canada, Europe, and Israel.
Scottish Power is a vertically integrated energy company based in Glasgow, Scotland. It is a subsidiary of Spanish utility firm Iberdrola.
Fortis Inc. is a St. John's, Newfoundland and Labrador-based international diversified electric utility holding company. It operates in Canada, the United States, Central America, and the Caribbean. In 2015, it earned CA$6.7 billion.
Azurix Corp. is a water services company, headquartered in Houston, Texas. The company owned and operated facilities in North America, Europe, and South America. In 2007, Azurix was awarded a $165 million claim against the government of Argentina by an international arbitral tribunal; the company is currently involved in a dispute over Argentina's refusal to pay the claim.
Exelon Corporation is an American Fortune 100 energy company headquartered in Chicago, Illinois and incorporated in Pennsylvania. It generates revenues of approximately $33.5 billion and employs approximately 33,400 people. Exelon is the largest electric parent company in the United States by revenue, the largest regulated electric utility in the United States with approximately 10 million customers, and was formerly the largest operator of nuclear power plants in the United States and the largest non-governmental operator of nuclear power plants in the world until the generation sources were spun off into an independent company, Constellation Energy, in 2022.
FirstEnergy Corp is an electric utility headquartered in Akron, Ohio. It was established when Ohio Edison acquired Centerior Energy in 1997. Its subsidiaries and affiliates are involved in the distribution, transmission, and generation of electricity, as well as energy management and other energy-related services. Its ten electric utility operating companies comprise one of the United States' largest investor-owned utilities, based on serving 6 million customers within a 65,000-square-mile (170,000 km2) area of Ohio, Pennsylvania, West Virginia, Virginia, Maryland, New Jersey and New York. Its generation subsidiaries control more than 16,000 megawatts of capacity, and its distribution lines span over 194,000 miles. In 2018, FirstEnergy ranked 219 on the Fortune 500 list of the largest public corporations in the United States by revenue.
Aquila, Inc. was an electricity and natural gas distribution network headquartered in Kansas City, Missouri in the United States. The company also owned and operated power generation assets. It previously operated under the name UtiliCorp United, Inc. The company at one time ranked #33 on the Fortune 500 list.
Hawaiian Telcom, Inc., is the incumbent local exchange carrier (ILEC) or dominant local telephone company, serving the state of Hawaii. In 2005, Hawaiian Telcom Holdco, Inc., was formed by The Carlyle Group, following its purchase of the Hawaiian Telecom Inc. assets of Verizon Communications. On July 2, 2018, Cincinnati Bell purchased Hawaiian Telcom Holdco, Inc. for $650 Million,
Edison International is a public utility holding company based in Rosemead, California. Its subsidiaries include Southern California Edison, and unregulated non-utility business assets Edison Energy. Edison's roots trace back to Holt & Knupps, a company founded in 1886 as a provider of street lights in Visalia, California.
Frontier Communications Parent, Inc. is an American telecommunications company. The company previously served primarily rural areas and smaller communities, but now also serves several large metropolitan markets.
UGI Corporation is a natural gas and electric power distribution company headquartered in King of Prussia, Pennsylvania, with extensive operations in the United States and Europe.
PacifiCorp is an electric power company in the western United States.
The Imperial Irrigation District (IID) is an irrigation district that serves the Imperial Valley in Southern California. Established under the State Water Code, the IID supplies roughly 500,000 acres (200,000 ha) of Imperial Valley farmland with raw Colorado River water to support irrigation. In addition to providing irrigation, IID also supplies electrical energy to the valley.
Covanta Holding Corporation is a private energy-from-waste and industrial waste management services company headquartered in Morristown, New Jersey. Most of its revenue comes from operating power plants that burn trash as fuel. Covanta charges a fee for waste disposal, sells electricity produced in the process, and recovers metal for recycling.
El Paso Electric is a Texas-based public utility company, engaging in the generation, transmission, and distribution of electricity in west Texas and southern New Mexico. Its energy sources consist of nuclear fuel, natural gas, purchased power, solar and wind turbines. The company owns six electrical generating facilities with a net dependable generating capability of approximately 2,010 megawatts. It serves approximately 437,000 residential, commercial, industrial, public authority, and wholesale customers.
Avista Corporation is an American energy company which generates and transmits electricity and distributes natural gas to residential, commercial, and industrial customers. Approximately 1,550 employees provide electricity, natural gas, and other energy services to 359,000 electric and 320,000 natural gas customers in three western states. The service territory covers 30,000 square miles (78,000 km2) in eastern Washington, northern Idaho, and parts of southern and eastern Oregon, with a population of 1.5 million.
Algonquin Power & Utilities Corp. is a Canadian renewable energy and regulated utility conglomerate with assets across North America. Algonquin actively invests in hydroelectric, wind and solar power facilities, and utility businesses, through its three operating subsidiaries: Bermuda Electric Light Company, Liberty Power and Liberty Utilities.
The Electric Bond and Share Company (Ebasco) was a United States electric utility holding company organized by General Electric. It was forced to divest its holding companies and reorganize due to the passage of the Public Utility Holding Company Act of 1935. Following the passage of the Act, the U.S. Securities and Exchange Commission (SEC) selected the largest of the U.S. holding companies, Ebasco to be the test case of the law before the U.S. Supreme Court. The court case known as Securities and Exchange Commission v. Electric Bond and Share company was settled in favor of the SEC on March 28, 1938. It took twenty-five years of legal action by the SEC to break up Ebasco and the other major U.S. electric holding companies until they conformed with the 1935 act. It was allowed to retain control of its foreign electric power holding company known as the American & Foreign Power Company (A&FP). After its reorganization, it became an investment company, but soon turned into a major designer and engineer of both fossil fuel and nuclear power electric generation facilities. Its involvement in the 1983 financial collapse of the Washington Public Power Supply System's five nuclear reactors led to Ebasco's demise because of the suspension of nuclear power orders and lawsuits that included numerous asbestos claims. The U.S. nuclear industry stopped all construction of new facilities following the 1979 nuclear meltdown at Three Mile Island, going into decline because of radiation safety concerns and major construction cost overruns.
California Water Service, commonly known as Cal Water, is an American company providing drinking water and wastewater services to a number of regions within the state of California. It was founded in 1926 and is based in San Jose, California, and provides service across multiple local districts, reaching more than 484,900 customers.
