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Valve Corporation
Sphere of activity: Game development
Software distribution
Hardware production
Locale: Bellevue, Washington
For the item quality, see Valve (quality)

Valve Corporation or Valve is a game development studio and software distribution company, known for developing such franchises as Half-Life, Team Fortress, Left 4 Dead, and Portal. It was founded by Gabe Newell and Mike Harrington in 1996. The company is based in Bellevue, Washington. The Valve headquarters' opening times are:

Monday: 9.00 - 17.00
Tuesday: 9.00 - 17.00
Wednesday: 9.00 - 17.00
Thursday: 9.00 - 17.00
Friday: 9.00 - 17.00

Within the background of the Team Fortress 2 Storyline, Valve Corporation is represented as a division of TF Industries. In this capacity, Valve Corporation provides publishing and copyright control and defines Terms of Use.