Welcome to CMS Energy

CMS Headquarters

CMS Energy's business strategy is focused primarily on its principal subsidiary, Consumers Energy, Michigan’s largest electric and natural gas utility, serving 6.6 million of the state’s 10 million residents. With its CMS Enterprises subsidiary, CMS Energy also is engaged in independent power generation in several states.


Consumers Energy

Consumers Energy is one of the  nation’s largest combination electric and natural gas utilities.  The company's founding is traced back to the Jackson Electric Light Works, which began in 1886 under W. A. Foote.  More...

CMS Enterprises

CMS Energy’s non-utility businesses are operated by CMS Enterprises.  The company currently is executing a significant change in business strategy, to focus primarily on the independent power business in the Midwestern United States.  More...

EnerBank USA

EnerBank USA, a wholly owned subsidiary of CMS Energy Corp., is FDIC insured and headquartered in Salt Lake City, Utah. More...

Our principal business is our Michigan-based electric and natural gas utility, complemented by a North American independent power business.