/ ˌhedˈkwɔːtəz; NAmE ˈhedkwɔːrtərz/ noun
[ U+sing./pl. v . , C ] ( pl. head·quar·ters ) ( abbr. HQ ) a place from which an organization or a military operation is controlled; the people who work there :
The firm's headquarters is / are in London.
Several companies have their headquarters in the area.
I'm now based at headquarters.
police headquarters
Headquarters in Dublin has / have agreed.