Sunoco LP is an American master limited partnership organized under Delaware state laws and headquartered in Dallas, Texas. Dating back to 1886, the company has transitioned from a vertically integrated energy company to a distributor of fuels. It was previously engaged in oil, natural gas exploration and production, refining, chemical manufacturing, and retail fuel sales, but divested these businesses. Sunoco is the largest independent distributor of fuels in the United States.
PPL Corporation is an energy company headquartered in Allentown, Pennsylvania in the Lehigh Valley region of eastern Pennsylvania. The company is publicly traded on the New York Stock Exchange as NYSE: PPL and is part of the S&P 500. As of 2022, the company had $7.9 billion in revenue, 6,500 employees, over $37 billion in assets, and serves 3.6 million customers.
Constellation Energy Corporation is an American energy company headquartered in Baltimore, Maryland. The company provides electric power, natural gas, and energy management services. It has approximately two million customers across the continental United States.
Atmos Energy Corporation, headquartered in Dallas, Texas, is one of the United States' largest natural-gas-only distributors, serving about three million natural gas distribution customers in over 1,400 communities in nine states from the Blue Ridge Mountains in the East to the Rocky Mountains in the West.
Consol Energy Inc. is an American energy company with interests in coal headquartered in the suburb of Cecil Township, in the Southpointe complex, just outside Pittsburgh, Pennsylvania. In 2017, Consol formed two separate entities: CNX Resources Corporation and CONSOL Energy Inc. While CNX Resources Corp. focuses on natural gas, spin-off Consol Mining Corporation, now Consol Energy Inc. focuses on coal. In 2010, Consol was the leading producer of high-BTU bituminous coal in the United States and the U.S.'s largest underground coal mining company. The company employs more than 1,600 people.
Ameren Corporation is an American power company created December 31, 1997, by the merger of St. Louis, Missouri's Union Electric Company and the neighboring Central Illinois Public Service Company of Springfield, Illinois. It is now a holding company for several power companies and energy companies. The company is based in St. Louis, with 2.4 million electric, and 900,000 natural gas customers across 64,000 square miles in central and eastern Missouri and the southern four-fifths of Illinois by area.
Veolia Water Technologies & Solutions is a water technology company. It is part of Veolia Group and has operations in 130 countries in a variety of industries, including food and beverage, metals and mining, power, pharmaceutical, oil and gas, chemicals, petrochemicals, pulp and paper, and utilities.
EPCOR Utilities Inc., formerly known as Edmonton Power Corporation, is a utility company based in Edmonton, Alberta. EPCOR manages water, wastewater, natural gas, and electricity distribution systems in the Canadian provinces of Alberta, British Columbia, and Ontario, and the American states of Arizona, New Mexico, and Texas. In addition, the company maintains and provides engineering support for traffic signals and street lights within the City of Edmonton, as well as other cities in Alberta. EPCOR is a municipally owned corporation with the City of Edmonton as sole shareholder.
Frontier Communications Parent, Inc. is an American telecommunications company. Known as Citizens Utilities Company until 2000, Citizens Communications Company until 2008, and Frontier Communications Corporation until 2020, as a communications provider with a fiber-optic network and cloud-based services, Frontier offers broadband internet, digital television, and computer technical support to residential and business customers in 25 states. In some areas it also offers home phone services.
SCANA Corporation was an American regulated electric and natural gas public utility. The company was based in Cayce, South Carolina, a suburb of Columbia, South Carolina. Following the Nukegate scandal, the company's stock fell and the company was in disrepair. In January 2019, SCANA was acquired by Dominion Energy. The corporate name SCANA was not an acronym, but was taken from the letters in South Carolina.
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.
Avangrid, Inc., is an energy services and delivery company. Avangrid serves about 3.1 million customers throughout New England, Pennsylvania and New York in the United States.
Stone & Webster was an American engineering services company based in Stoughton, Massachusetts. It was founded as an electrical testing lab and consulting firm by electrical engineers Charles A. Stone and Edwin S. Webster in 1889. In the early 20th century, Stone & Webster was known for operating streetcar systems in many cities across the United States including Dallas, Houston and Seattle. The company grew to provide engineering, construction, environmental, and plant operation and maintenance services, and it has long been involved in power generation projects, starting with hydroelectric plants of the late 19th-century; and with most American nuclear power plants.
EQT Corporation is an American energy company engaged in hydrocarbon exploration and pipeline transport. It is headquartered in EQT Plaza in Pittsburgh, Pennsylvania.
Ranhill Utilities Berhad is a Malaysian conglomerate with interests in environment and power sectors. In the environment sector, it provides water supply services, operates water and wastewater treatment plants, and provides specialised services in the management and optimisation of water utility assets. In the power sector, it develops, owns and operates power generation assets. Its operations and services are primarily in Malaysia, and its international operations are centered in Asian markets such as China, Thailand and Southeast Asia.
XTO Energy Inc. is an American energy company and subsidiary of ExxonMobil principally operating in North America. Acquired by ExxonMobil in 2010 and based out of Spring, Texas, it is involved with the production, processing, transportation, and development of oil and natural gas resources. The company specializes in developing shale gas via unconventional means like hydraulic fracturing and horizontal drilling.
American Water is an American public utility company that, through its subsidiaries, provides water and wastewater services in the United States.
G&K Services, Inc. was an American company based in Minnetonka, Minnesota, which provided branded identity uniforms and facility products and services for rent and purchase. G&K Services' branded clothing and facility services programs provided rental-lease or purchase options through its direct sale programs (GKDirect). On March 21, 2017, the company was acquired by Cintas for approximately $2.2 billion.
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.
Xylem Inc. is a large American water technology provider, in public utility, residential, commercial, agricultural and industrial settings. The company does business in more than 150 countries. Launched in 2011 as the spinoff of the water-related businesses of ITT Corporation, Xylem is headquartered in Washington, DC, with 2018 revenues of $5.2 billion and 17,000 employees worldwide.
US$1,878M (2021) [1] 
