Valve

Description:

Based in Bellevue, Washington, Valve is an entertainment software and technology company founded in 1996. In addition to creating several of the world’s most award-winning games, Valve is also a developer of leading-edge technologies including the Source game engine and Steam, the premier online gaming platform.

Valve is the creator of Steam, the world’s largest online gaming platform. Steam turns any PC (and soon any Mac) into a gaming powerhouse by providing instant access to a huge library of titles, and by automatically keeping a user’s games completely up to date.

In the world of video games, they're best known for the Half Life franchise, as well as Portal, Team Fortress, and Counter-Strike.

Website: www.valvesoftware.com