Headquarters n. sing. : The quarters or place of residence of any chief officer, as the general in command of an army, or the head of a police force; the place from which orders or instructions are issued; hence, the center of authority or order.

Example:
Why are a companies Headquarters in a different country to where the products are made?

Taxonomy
Headquarters, HQs, business unit, corporate headquarters, Entity, corporate functions, free encyclopedia, head office, rear, Military headquarters, Police headquarters, Unsourced, regional unit, Isby, front line, Wanner, Unit headquarters, Regional headquarters.

Defination from the web:
headquarters in Wiktionary, the free dictionary. Headquarters (HQ) denotes the location where most, if not all, of the important ... Corporate headquarters are a key element of a corporate structure and cover different corporate functions such as strategic planning, corporate ...