Valve

Valve Corporation is a private American video game developer, publisher, and digital distribution company best known for operating Steam, the dominant storefront and social platform for PC gaming. Founded in the mid-1990s by former Microsoft employees Gabe Newell and Mike Harrington, the company has shaped PC gaming culture through landmark franchises including Half-Life, Counter-Strike, Portal, and Dota 2.

Beyond software, Valve has expanded into hardware, producing the Valve Index virtual reality headset and the Steam Deck, a handheld PC gaming device. The Steam Hardware Survey, published monthly, has become an industry-standard barometer for tracking which graphics cards, operating systems, and peripherals PC gamers actually use — making Valve a meaningful source of real-world market data for chip and hardware makers.

As a large-scale private technology company, Valve operates without the quarterly reporting obligations of public firms, giving it unusual latitude to experiment on its own timeline. Recent moves include winding down its physical Steam gift card program after persistent exploitation by fraudsters, and continued investment in VR hardware distribution — signals of a company actively managing both the commercial and security dimensions of its platform ecosystem.