San Diego Gas & Electric
Founded in 1881, San Diego Gas & Electric is the primary natural gas utility for San Diego and southern Orange County. A subsidiary of Sempra Energy, a Fortune 500 energy company, SDG&E delivers natural gas and electricity to over 3.4 million customers is a service area that spans 4,100 square miles.
Southern California Gas
A subsidiary of Sempra Energy, SoCalGas is the primary natural gas utility for southern California. In operation for over 140 years, SoCalGas serves over 20 million natural gas customers in more than 500 communities. Its 20,000 square mile service area ranges from the Mexican border to Visalia, up in the San Joaquin Valley.
The United Illuminating Company is a regional electric utility. Established in 1899, it is headquartered in Orange, Connecticut. It delivers energy to over 325,000 residential, commercial, and industrial consumers. Its service area encompasses 17 communities around the Bridgeport and New Haven. It is a subsidiary of UIL Holdings.
Atlanta Gas Light
Founded in 1856, Atlanta Gas Light is a subsidiary of AGL Resources, which delivers gas to over 4.5 million customers. Currently, Atlanta Gas Light Company is the largest natural gas distributor in the southeastern United States, providing service to over 1.5 million residential and commercial customers across the state of Georgia. Both Atlanta Gas Light and AGL Resources are headquartered in Atlanta.
Commonwealth Edison Company, or ComEd, provides utility services to 70% of the Illinois population. A subsidiary of Exelon Corporation, ComEd’s top priority is to deliver safe and reliable power to its customers. ComEd also puts its customers’ needs first, offering a range of educational information on energy and technologically-advanced customer service functions.
Based in Collinsville, Illinois, Ameren Illinois is a subsidiary of Ameren Corporation. Ameren Illinois was founded in the early 1900s and delivers energy to over 1.2 million electric and 806,000 natural gas customers in over 1,200 communities in central and southern Illinois. They also maintain and repair over 45,000 miles of electrical lines and 18,000 of natural gas pipeline.
North Shore Gas
Founded in 1900, Northshore Gas is a regulated gas utility serving the northern Chicago suburbs. It delivers natural gas to 159,000 customers in Cook and Lake counties. Based in Chicago, Illinois, Northshore Gas is a subsidiary of People’s Gas.
Founded in 1954, Nicor Gas is a subsidiary of AGL Resources. It is the largest natural gas utility in northern Illinois, delivering energy to over two million customers. Its service territory includes the northern third of the state. It operates, maintains, and manages over 32,000 miles of natural gas pipelines.
Emera Maine (Bangor Hydroelectric)
Emera Maine delivers energy to the areas previously served by the Bangor Hydro and Maine Public Service. Its 8,902 square mile service area includes the counties of Hancock, Piscataquis, Washington, Penobscot, and Aroostok and includes over 150,000 customers. `
Central Maine Power
Founded in 1899, Central Maine Power Company serves over 600,000 business and residential customers in central and southern Maine. Its service area is larger than the states of Massachusetts and Rhode Island combined and contains roughly 80% of Maine’s population and major centers of business and industry. Central Maine Power maintains and reapirs over 25,000 miles of electric wire and over 280 substations.
Baltimore Gas & Electric
A subsidiary of Exelon, Baltimore Gas & Electric is both the oldest gas utility in the nation and the largest utility in Maryland, with a service area of over 2,300 square miles. BG&E deliver electricity to 1.25 million residential and small business customers and maintains over 25,000 miles of distribution and transmission lines.
Delmarva Power & Light
Delmarva Power was founded in 1909 and is currently a subsidiary of Pepco Holdings. The utility delivers electricity to 506,000 residential and business customers in Maryland and Delaware and natural gas to over 126,000 customers in northern Delaware. Its service territory in Maryland includes the counties of Harford, Cecil, Kent, Queen Annes, Talbot, Caroline, Dorchester, Somerset, Worcester, and Wicomico.
Washington Gas Light
Founded in 1848, Washington Gas Light Company is the primary natural gas utility for the District of Columbia. It delivers natural gas to over a million homes and businesses throughout Washington D.C. and the surrounding area. It is a subsidiary of WGL Holdings, Inc.
Unitil (Fitchburg Gas & Electric)
Unitil is an electric and natural gas utility that serves customers in New Hampshire, Massachusetts, and Maine. Founded in 1984, it serves over 102,000 electric customers and 75,900 natural gas customers. Its service area includes significant population and commercial centers including Fitchburg, MA, Concord, NH, and the cities of Portland and Lewiston in Maine.
NSTAR (Eversource Energy)
Previously known as Northeast Utilities, Eversource is a Fortune 500 energy company that serves over 3.6 million customers in Connecticut, Massachusetts, and New Hampshire. It operates and maintains over 72,000 miles of electrical power lines and roughly 6,500 miles of natural gas pipelines.
Eversource Energy Massachusetts
Western Massachusetts Electric is an electrical utility, delivering energy to 207,000 residential, commercial, and industrial customers. Founded in 1866, Western Massachusetts Electric has a service area of 1,490 square miles, making it one of the largest utility companies in New England. It operates over 4,200 miles of electric distribution and power lines.
DTE Energy (Michigan Consolidated)
Founded in 1849, Michigan Consolidated Gas (MichCon) is a subsidiary of DTE Energy. DTE delivers electricity to over 2.1 million customers in southeast Michigan and natural gas to roughly 1.2 million homes and businesses in northern and central Michigan. It is one of the largest natural gas utilities in the United States.
Michigan Gas Utilities
Founded in 1859, Michigan Gas Utilities delivers energy to roughly 170,000 customers in southwest Michigan. Its service area includes Grand Haven, Otsego, Benton Harbor, Coldwater and Monroe. Formerly known as Aquila Energy, Michigan Gas Utilities is a subsidiary of Integrys Energy Group.
Headquartered in Port Huron, SEMCO Energy Gas Company is a regulated public utility that serves roughly 290,000 residential, commercial, and industrial customers throughout the state of Michigan. Its service territory spans from White Pine, Hancock, and Houghton in the Upper Peninsula, to the Port Huron, St. Clair, Holland, Niles, and Albion in the southern half of the Lower Peninsula.
Atlantic City Electric
Founded in 1924, Atlantic City Electric is a subsidiary of PEPCO Holdings, Inc. Atlantic City Electric has a service area of more than 2,700 square miles and delivers electricity to over 545,000 customers in southern New Jersey. The counties they serve include Camden, Cape May, Atlantic, Burlington, Ocean, and others.
Jersey Central Power & Light
Jersey Central Power & Light is a subsidiary of First Energy, one of the largest energy delivery companies in the United States, serving six million customers in New Jersey, Pennsylvania, W. Virginia, Maryland, Virginia, and Ohio. In New Jersey, JCPL serves customers in Burlington, Essex, Middlesex, Monmouth, Morris, Ocean, Passaic, Somerset, Sussex, Union, and Warren counties.
Public Service Electric & Gas (PSEG)
Public Service Electric & Gas Company (PSE&G) is the largest utility in New Jersey, serving both business owners and homeowners since 1903. PSE&G provides reliable electric and natural gas services to 5.1 million customers, which earned them the title of most reliable mi-Atlantic utility company for the 15th year in a row.
A subsidiary of Orange & Rockland, Rockland Electric delivers energy to 61,109 residential electric customers in northern New Jersey. Its service area includes parts of Passaic, Bergen, and Essex counties. Since deregulation, Rockland Electric no longer generates energy and has instead focussed solely on distribution and delivery.
Headquartered in Union, New Jersey and founded in 1855, Elizabethtown Gas delivers natural gas to over 277,000 customers in southern New Jersey. Its service area includes the counties of Union, Middlesex, Sussex, Warren, Hunterdon, Morris, and Mercer. In 2004, Elizabethtown Gas became a subsidiary of AGL Resources.
South Jersey Gas
Founded in 1910, South Jersey Gas delivers energy to over 343,560 customers in southern New Jersey. A subsidiary of South Jersey Industries, the utility’ 2,500 square mile service area covers roughly one-third of the state’s geographic area. The service area includes the counties of Cape May, Cumberland, Salem, Atlantic, Burlington, Camden, and Gloucester.
Central Hudson (Electricity & Nat Gas)
Central Hudson Gas & Electric serves 300,000 electric customers in New York’s Mid-Hudson River Valley. Extending from the New York City suburbs in the south to Albany in the north, its service area includes Poughkeepsie, Newburgh, Beacon, and Kingston. Founded in 1900, the utility received the Headliner Award for Customer Service in 2015 and the Edison Electric Institute’s Emergency Response Award for its response to Hurricane Sandy.
National Grid (Keyspan New York)
Keyspan New York is a subsidiary of National Grid, which is the largest natural gas distributor in the northeast. It provides service to 3.6 million natural gas customers and 3.4 million electricity customers in New York, Massachusetts, and Rhode Island.
Consolidated Edison Co.
Founded in 1823, the Consolidated Edison Company (commonly referred to as ConEd) has become one of the world’s largest energy delivery companies. ConEd serves 10 million customers in various parts of New York, and is dedicated to the delivery and maintenance of high quality services.
National Grid (Keyspan Long Island)
Keyspan Long Island is a subsidiary of National Grid, a British-based energy company that is also the largest natural gas distributor in the northeastern United States. It delivers natural gas to 3.6 million customers in New York, Massachusetts, and Rhode Island, and electricity to roughly 3.4 million customers in the same states.
Dayton Power & Light
Since its founding in 1911, Dayton Power & Light has been serving the residents of the Miami Valley including, not surprisingly, the city of Dayton. It delivers electricity to over 515,000 residential and business customers in its 6,000 square mile service area. The company operates and maintains over 15,000 miles of electrical lines.
Duke Energy Ohio is a subsidiary of Duke Energy, America’s largest electric power holding company. Duke Energy Ohio delivers electricity to 840,000 homes and businesses in southeastern Ohio. It’s 3,000 square mile service area includes the city of Cincinnati as well as Hamilton, Butler, Clermont, Warren, and Brown counties.
Ohio Edison is a subsidiary of First Energy. Ohio Edison delivers electricity to over one million customers in central and northeastern Ohio. Its service area include Ashland, Champaign, Clark, Cuyahoga, Delaware, Erie, Franklin, Knox, Miami, Union, and Wayne counties. It manages, maintains, and operates over 30,000 miles of electric power lines.
AEP Ohio (Ohio Power Company)
A subsidiary of AEP Ohio, Ohio Power transmits and distributes electricity to nearly 1.5 million residential, commercial, and industrial customers. Founded in 1907, the company is headquartered in Columbus. The utility manages and operates over 31,000 miles of electrical wire, ensuring reliable delivery to your doorstep.
Founded in 1881, Toledo Edison delivers electricity to residential, commercial, and industrial customers in Ohio. A subsidiary of First Energy, Toledo Edison’s service area includes northwestern Ohio.
Dominion East Ohio is a subsidiary of Dominion Resources, one of the largest distributors of energy in the United States, serving millions of customers across 12 states. Dominion Resources was ranked No. 1 among electrical and gas utilities in Fortune’s list of “World’s Most Admired Companies” in 2015 and was 71st on the list of “100 Best Corporate Citizens 2014.”
Vectren Energy Delivery
Headquartered in Evansville, Indiana, Vectren delivers natural gas to over a million residential and commercial customers in Ohio and Indiana. In Ohio, Vectren delivers to 314,000 customers located in the western and central part of the state. Its service area includes the city of Dayton, Troy, Bellefontaine, Centerville, and Fairborn.
Founded in the late 1870s by famed inventor George Westinghouse, Duquesne Light Company is the primary electric utility for the Pittsburgh area. It delivers electricity to over 500,000 residential and business customers in its 817 square mile service area, which includes Allegheny and Beaver counties. It operates, maintains, and manages over 45,000 miles of overhead power lines.
Metropolitan Edison (Met-Ed)
A subsidiary of First Energy, Metropolitan Edison is an Akron-based electric utility company that operates in central and eastern Pennsylvania. Founded in 1917, Met-Ed delivers electricity to over 560,000 customers. Its 3,300 square mile service area includes parts of Adams, Berks, Chester, Cumberland, Dauphin, Lancaster, Lehigh, Lebanon, Monroe, Montgomery, Northampton, Pike, and York counties.
Founded in 1881, the Philadelphia Electric Company, or PECO, is the largest combination natural gas and electricity utility. It provides service to 1.6 million electric customers and 485,000 natural gas customers. Its 2,100 square mile service area includes Philadelphia, Coatesville, Pottstown, Norristown, and Willow Grove.
West Penn Power
Headquartered in Greensburg, Pennsylvania, West Penn Power is a natural gas and electric utility. It delivers energy to over 724,000 electric customers in 24 Pennsylvania counties. It is a subsidiary of First Energy Corp.
Peoples Gas (formerly Equitable Gas)
In 2013, Equitable Gas was purchased by Peoples Gas company. Peoples serves over 700,000 natural gas customers in western Pennsylvania, West Virginia, and Kentucky. Its service area in Pennsylvania includes the cities of Pittsburgh, Indiana, Altoona, Clarion, Johnstown, and Uniontown.
National Fuel Gas (PA)
Founded in 1902, National Fuel is a natural gas utility that serves western New York and northwestern Pennsylvania. In Pennsylvania, its service area includes Sharon and Erie. It delivers energy to 740,000 residential, commercial, and industrial customers and is headquartered in Williamsville, NY.
UGI Penn Natural Gas
Headquartered in Wilkes-Barre, UGI Penn Natural gas is the largest natural gas distribution company in northeast and central Pennsylvania. It delivers energy to roughly 158,000 customers across 13 counties. Its service area includes the cities of Scranton, Wilkes-Barre, and Williamsport. The utility was founded in 1854.
UGI Central Penn Gas
UGI Central Penn Gas is a natural gas and electric utility. They deliver energy to over 650,000 customers in hundreds of communities across the state. Their service area includes Their service area includes parts of Monroe, Carbon, Lancaster, Clarion, Venango, McKean, Clearfield, Potter, Schuylkill, Bradford, and Chester. Formerly known as PPL Gas Utilities Corp, UGI Central Penn was founded in 1944 and is based in Allentown, PA. It is a subsidiary of UGI Utilities, Inc.
AEP Texas Central
AEP Texas Central is an electric utility operating in southern and central Texas. Founded in 1916, it delivers energy to over 800,000 residential, commercial, and industrial customers. AEP Texas Central it is a subsidiary of American Electric Power Company, one of the largest electrical utilities in the United States.
AEP Texas North
Formerly West Texas Utility, AEP Texas North is an electric utility that provides service to over 49 counties and 176 cities in central, northern, and western Texas. It delivers energy to over 184,000 residential, commercial, and business customers and operates over 18,000 miles of transmission and distribution lines.
Centerpoint Energy is headquartered in Houston, where it also serves as the primary electrical utility. In addition to providing electrical service to two million Houston residents and businesses, CenterPoint has won numerous awards for its service and environmental stewardship, including the SAP Utility of the Year award for 2014 and the Energy Star Sustained Excellence Award from the Environmental Protection Agency in 2013.
Oncor Electric Delivery
Oncor Electric Delivery spans 402 cities and 91 counties in Texas, making it one of the largest electric utilities in the state. Oncor’s main goal is to rethink energy “for greater efficiency, cost savings and positive environmental impact”. To do so, Oncore employs advanced energy technologies to improve and maintain its 3.4 million meters and 122,000 miles of power lines.
Founded in 1998 and headquartered in Dallas, Sharyland Utlities is a privately owned, publicly regulated Texas utility. It delivers electricity to roughly 50,000 customers across 29 counties throughout the state. In addition to delivering energy, Sharyland Utilities is also engaged in a number of transmission and generation projects.
Texas-New Mexico Power
Based in Lewisville, Texas, Texas New Mexico Power provides service to roughly 236,000 customers in more than 20 communities throughout the state. Their service area includes the cities of Kermit, Sanderson, Gatesville, Whitney, Farmersville, Angleton, and Texas City. The utility manages over 9,000 miles of electric power lines and distribution wires.