III Armored Corps has subsidiary 75th Field Artillery Brigade
III Corps, Fort Cavazos, Texas 1st Cavalry Division, Fort Cavazos, Texas (Operation Reforger Formation)
 2nd Armored Division, Fort Cavazos, Texas (Operation Reforger Formation)
 2nd Armored Division (Forward), Garlstedt, West Germany (as of 1978)
 5th Infantry Division (Mechanized), Fort Polk, Louisiana (Operation Reforger Formation)
101st Airborne Division, Fort Campbell
 III Corps Artillery, Fort Sill, Oklahoma
 75th Field Artillery Brigade, Fort Sill, Oklahoma
 212th Field Artillery Brigade, Fort Sill, Oklahoma (Operation Reforger Unit)
 214th Field Artillery Brigade, Fort Sill, Oklahoma
 3rd Armored Cavalry Regiment, Fort Bliss, Texas (Operation Reforger Unit)
 6th Cavalry Brigade (Air Combat), Fort Cavazos, Texas
 31st Air Defense Artillery Brigade, Fort Cavazos, Texas
 89th Military Police Brigade, Fort Cavazos, Texas
 3rd Signal Brigade (Corps), Fort Cavazos, Texas
 504th Military Intelligence Brigade, Fort Cavazos, Texas
 13th Corps Support Command, Fort Cavazos, Texas
has affiliate owns controls has a subsidiary company has a subsidiary corporation