US Army parachute oval Staf Headquarters and Headquarters Company (master)

In United States Army units, a headquarters and headquarters company (HHC) is a company-sized military unit, found at the battalion level and higher. In identifying a specific headquarters unit, it is usually referred to by its abbreviation as an HHC. While a regular line company is formed of three or four platoons, an HHC is made up of the headquarters staff and headquarters support personnel of a battalion, brigade, division, or higher level unit. As these personnel do not fall inside one of the regular line companies of the battalion, brigade, or division, the HHC is the unit to which they are administratively assigned. The typical personnel strength of an average HHC is 80 to 110.