- "Working to make a better tomorrow for all mankind."
- ―The Black Mesa motto
Black Mesa is a scientific research company and closest rival of Aperture Science. Black Mesa has been shown to produce a wide array of devices and weaponry, including the HEV suit, various weapons and defense technologies, though much of their research and development is kept secret. Many of the devices produced by Black Mesa were stolen from Aperture, contributing to Aperture's bankruptcy.
like much of the world and it's competing companies, Black Mesa was devastated by and subsequently dismantled after the Black Mesa Incident, which allowed the Combine to invade earth and enslave humanity, only to be devastated in turn by Gordon Freeman, at the time an ex-employee of Black Mesa and the only known owner of a functional HEV suit.