 The Chicago Loop Alliance is located at 55 West Monroe, the Chicagoland Chamber of Commerce is located in an office in the Aon Center, the French-American Chamber of Commerce in Chicago has an office in 35 East Wacker, the Netherlands Chamber of Commerce in the United States is located in an office at 303 East Wacker Drive, and the US Mexico Chamber of Commerce Mid-America Chapter is located in an office in One Prudential Plaza.McDonald's was headquartered in the Loop until 1971, when it moved to suburban Oak Brook.When Bank One Corporation existed, its headquarters were in the Bank One Plaza, which is now Chase Tower.