Viant is a marketing consulting firm that provides data-driven solutions for brands and agencies. The company was founded in 1999 by Tim Vanderhook and Chris Vanderhook and is headquartered in Los Angeles, California. Viant's services include audience targeting, programmatic advertising, and measurement and analytics. The company has been recognized as one of the fastest-growing private companies in America by Inc. Magazine and has won numerous awards for its work, including Cannes Lions and Effies.