AmerenUE » Business Directory If you your business isn’t listed here, contact us today for more information! Find a business using one of our Quick Links to search by business name. Go back to directory. Add to Address Book. AmerenUE AmerenUE PO Box 1558 Jefferson City MO 65102 home Work Phone: 573-690-0339work Work Email: lhoelscher@ameren.comINTERNET Website: http://www.ameren.com Categories: Business Updated 2 years ago.