Constituted 16 October 1939 in the Regular Army as Headquarters and Headquarters and Service Company, 18th Engineers

Activated 21 October 1939 at Fort Devens, Massachusetts

Redesignated 1 August 1942 as Headquarters and Headquarters and Service Company, 18th Engineer Combat Regiment

Reorganized and redesignated 8 January 1945 as the 1081st Engineer Maintenance Company

Inactivated 20 October 1945 at Camp Bowie, Texas

Redesignated 29 April 1947 as the 18th Engineer Maintenance Company

Redesignated 20 May 1947 as the 18th Engineer Construction Company

Activated 3 June 1947 at Schofield Barracks, Hawaii

Inactivated 31 December 1949 at Schofield Barracks, Hawaii

Redesignated 5 December 1956 as the 18th Engineer Company

Activated 24 December 1956 in France

Inactivated 23 January 1957 in France

Activated 16 December 1957 at Ladd Air Force Base, Alaska

Inactivated 1 October 1963 at Fort Wainwright, Alaska

Activated 24 June 1967 at Fort Lewis, Washington

Inactivated 22 June 1972 at Fort Lewis, Washington

Assigned 16 September 2000 to the 2d Infantry Division and activated at Fort Lewis, Washington

18th Engineer Company Honors

Campaign Participation Credit

World War II-American Theater: Silver Band without inscription

World War II-AP: Aleutian Islands

Decorations

Meritorious Unit Commendation (Army) for ALCAN HIGHWAY