What is the plural of headquarters?

The plural of headquarters is headquarters.

Headquarters is an invariant noun: the singular and plural are identical.

All forms of headquarters

as a noun

base: headquarters
plural: headquarters

Headquarters in a sentence

The general commanded him to report to headquarters.unknown
The company's headquarters were located in a modern and stylish building.Amastan
In this next slide we see an aerial shot of the company headquarters.darinmex