Top Utilities Companies in USA List by Market Cap as of August 2026

CMS ENERGY CORPORATION is Electricity utility and gas utility company with headquarters is in Michigan, USA.Consumers Energy is one of the nation’s largest combination electric and natural gas utilities.CMS Enterprises owns and operates independent power generating plants, natural gas assets.CMS Enterprises Company also engaged in independent power generation in several states.

CMS Energy total number of employees in 2022 was 9,073.

Natural gas utility and electric utility company with headquarters is in Indiana, USA.

Western Midstream provides high-quality midstream service providing Natural gas processing, compressing and transportation company. Headquarters is in Texas, USA.

Electricity Utility company with headquarters is in USA. Company products are Electricity generation Electric power transmission Electricity distribution.

As on 2022, EVERGY has 4,512 employees.

As on 2022, EVERGY generating 4.4 GB Renewable Generation Added Since 2005.

EVERGY revenue generating for the period of ending 2022 was 5,859 million USD.

EVERGY Net Income was generating for the period of ending 2022 was 752 million USD.

Alliant Energy Corporation is a public utility holding company. The Company supplies electricity, natural gas and water to residential and commercial customers. The Company's segments include Utility and Non-regulated, Parent and Other. The company products are electricity and natural gas. The headquarters is in USA.

As on Dec-2022, Alliant Energy Corporation has 3,129 employees.

Alliant Energy Corporation annual revenue generated for period ending Dec-2022 was 4,205 million USD.

TELEFONICA BRASIL is Telecom Company with headquarters is in Sao Paulo, Brazil providing mobile network services, fixed line services, internet services, television services.

As on 2022, TELEFONICA BRASIL has 34,000 employees.

TELEFONICA BRASIL annual revenue generated for period ending Dec-2022 was 48,041 million BRL.

TELEFONICA BRASIL annual net income generated for period ending Dec-2022 was 4,085 million BRL.

PLAINS ALL AMERICAN PIPELINE is involved in intrastate crude oil pipeline transportation and terminal storage activities. The company is operates in three segments: transportation, facilities, and supply and logistics. By this segments the company is engaged in transportation, storage, terminating and marketing of crude oil, NGL and natural gas. The headquarters is in USA.

Dycom Industries is a Engineering Services company. It serve the nation from more than 500 field offices and are unparalleled in scope and scale and over 14,000 employees provides a wide array of specialty services including construction, engineering, underground facility locating, fulfilment and program management. The headquarters is in USA.

Pinnacle West Capital Corporation is a Electric Utility holding company. It mainly handles serving electric company that generates safe, affordable and reliable electricity transmission and distribution. The headquarters is in USA.

Zayo Group Holdings is a Communication and Technology Service company. The company services are fiber and bandwidth connectivity, colocation and cloud infrastructure. The headquarters is in USA.

Zayo acquired by Digital Colony and EQT for 14.3 Billion USD.