ENGINEERS, U S ARMY CORPS OF Active UEI CAGE Website HGN3U9YMLF39 Addresses Physical Address 1222 SPRUCE ST RM 4.100 SAINT LOUIS, MO 63103 UNITED STATES OF AMERICA Mailing Address , Business Type U.S. FEDERAL GOVERNMENT NAICS Codes Code Description 541330 ENGINEERING SERVICES (PRIMARY NAICS) 928110 NATIONAL SECURITY Contacts Type Person