arsenal credit union
Arsenal Credit Union (ACU) is a state-chartered credit union headquartered in Arnold, Missouri, and serving the St. Louis metropolitan area, chartered and regulated under the authority of the Missouri Division of Credit Unions. Member deposits are federally insured by the National Credit Union Administration (NCUA), a U.S. government agency. As of March 2018, ACU has approximately $231.1 million in assets, more than 26,000 members and six branches. It is the 8th-largest credit union in St. Louis and the 11th-largest in Missouri, based on asset size.