Companies and Brands
Ameren Corporation
Utilities
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Ameren Corporation is an American electric and natural gas utility holding company headquartered in St. Louis, Missouri, formed in 1997 through the merger of Union Electric Company and Central Illinois Public Service Company (CIPSCO), whose combined name blended "American" and "energy." Its principal operating subsidiaries, Ameren Missouri and Ameren Illinois, deliver electricity and natural gas to customers across those two states.
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A major electric or gas utility company; classified in the atlas utilities-industry.
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