C
CMS ENERGY CORP
Electric & Other Services Combined
· Common: CMS
CMS Energy is a Michigan-based energy holding company formed in 1987, operating primarily through its principal subsidiary, Consumers Energy, an electric and gas utility that has served Michigan customers since 1886. The company runs three main business segments — electric utility, gas utility, and NorthStar Clean Energy — with Consumers Energy accounting for the substantial majority of total assets, income, and operating revenue. NorthStar Clean Energy focuses on domestic independent power production, including renewable generation development and operation. CMS Energy reported consolidated operating revenue of $8.5 billion in 2025, making it one of Michigan's largest and most established energy providers.