World Top 100 Utilities Companies List by Market Cap as of August 2026

CONSTELLATION ENERGY CORPORATION generates Electricity and supplies to its consumers. It supplies natural gas as well to it's consumers. Headquarters is in USA.

As on 2022, CONSTELLATION ENERGY CORPORATION has 13,370 employees.

DUKE ENERGY CORPORATION is Electricity generation and Electric utility (electricity distribution) company with headquarters is in North Carolina, USA. DUKE ENERGY CORPORATION electric utilities serve 8.2 million customers in North Carolina, South Carolina, Florida, Indiana, Ohio and Kentucky, and collectively own 50,000 megawatts of energy capacity.

Williams Companies is an energy infrastructure company focused on connecting North America’s significant hydrocarbon resource plays to growing markets for natural gas and natural gas liquids (NGLs). Williams’ interstate gas pipeline and gathering & processing operations span the United States, including strategic assets in the deep water Gulf of Mexico, the Rockies, the Pacific Northwest and the Eastern Seaboard.

Williams owns and operates midstream gathering and processing assets, and interstate natural gas pipelines.

WASTE MANAGEMENT is Waste and Trash Management Company with headquarters is in USA. They pickup waste materials and recycle waste materials. They have recycling plants and huge trucks fleet to provide waste management services effectively.

It is the provider of comprehensive waste management services in North America, providing services that range from collection and disposal to recycling and renewable energy generation.

As on 2022, WASTE MANAGEMENT has 49,500 employees.

ENTERPRISE PRODUCTS PARTNERS is Oil and Gas Company with headquarters is in Texas of USA. Enterprise Products Partners L.P. provides midstream energy services to producers and consumers of natural gas, natural gas liquids (NGLs), crude oil, refined products, and petrochemicals in the United States, Canada, and Gulf of Mexico.

As on 2021, ENTERPRISE PRODUCTS PARTNERS has 7,130 employees.

ENTERPRISE PRODUCTS PARTNERS annual revenue generated for period ending Dec-2022 was 58,186 million USD.

TAQA had 10 integrated utilities champion in the EMEA region with power and water and oil and gas operations in 25 countries around the world. Headquarters is in UAE.
Their business operations is in the UAE as well as Canada, Ghana, Morocco, Netherlands, Oman, Saudi Arabia, United Kingdom and United States.

EDF (ELECTRICITE DE FRANCE) is Electricity Generation and Electric Utility company with headquarters is in France mainly from nuclear power and renewable energy.

The EDF shares were delisted from Euronext in Paris on June-08-2023. EDF is owned by French state.

Electric Utility and Gas Utility company with headquarters is in London, UK.

NATIONAL GRID TRANSCO BUSINESS AREAS:

ELECTRICITY DISTRIBUTION(ED)

ELECTRICITY TRANMISSION.

ELECTRICITY SYSTEM OPERATOR.

NATIONAL GRID VENTURES.

NATIONAL GRID PARTNERS.

UNITED STATES.

Electric Utility and Electricity generation company. Gas Utility and Gas Production company. Generates Nuclear power, hydro-electric power, wind power. Headquarter is in France.

KINDER MORGAN is Oil and Gas pipelines infrastructure operating company with headquarters is in USA. Kinder Morgan is one of the largest energy infrastructure companies in North America. They own an interest in or operate approximately 84,000 miles of pipelines and 157 terminals.