Ameren Corp.
Sector: Transportation, Communications, Electric, Gas, And Sanitary Services
Industry: Utilities
Company Description:Ameren Corporation, together with its subsidiaries, operates as a public utility holding company in the United States. The company generates electricity through coal, nuclear, and natural gas, as well as renewable sources. Ameren Missouri, Illinois Electric Distribution, Ameren Illinois Natural Gas, and Ameren Transmission operate through four segments.