the.com/headquarters

means The central office from which an organization is directed and commanded.

from Built from 'head' (chief, principal) plus 'quarters,' the old military term for lodgings assigned to troops — rooms where soldiers were quartered. A general's headquarters was literally the house or tent where he was billeted while commanding the army, and the word marched from military camps into business and bureaucracy with its sense of 'the place the orders come from' intact.