Simplify the following text for a Grade 13 native English-speaking person.
Original: Three major private employers in the city are CMS Energy , which provides natural gas and electrical services to much of Michigan and has its international headquarters in the city , as well as Allegiance Health ( Formerly Foote Hospital ) and the Eaton Corporation .
Simplified: Several of the major employers in the city are CMS Energy , which gives natural gas and electrical services to much of Michigan and has its international headquarters in the city , as well as Foote Hospital .