Ameren Corporation is an American power company created December 31, 1997 by the merger of St. Louis, Missouri's Union Electric Company (formerly NYSE: UEP) and the neighboring Central Illinois Public Service Company (CIPSCO Inc. holding, formerly NYSE: CIP) of Springfield, Illinois.
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UpGuard's Cyber Security Ratings range from 0 to 950. The higher the score, the more likely Ameren is implementing good security practices.
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