- Organized and Federally recognized 1 May 1974 in the Kentucky Army National Guard at Cynthiana as Detachment 1, Company D, 201st Engineer Battalion
- Reorganized and redesignated 1 September 1978 as Company C, 201st Engineer Battalion
- Ordered into active Federal service 1 August 2002 at Cynthiana; released from active Federal service 30 July 2004 and reverted to state control
- Ordered into active Federal service 2 March 2008 at Cynthiana
- Reorganized and redesignated 1 September 2008 as the 149th Engineer Company
- Released from active Federal service 5 April 2009 and reverted to state control
- Ordered into active Federal service 8 February 2013 at Cynthiana; released from active Federal service 14 March 2014 and reverted to state control
HOME STATION: Cynthiana (less detachment at Olive Hill)