Viant

Irvine, California, United States · Founded 1999

201-500 employees · DSP

Sourced & current · updated Oct 26, 2026Website

Viant is a programmatic advertising technology company that has been empowering marketers to create, execute, and measure advertising campaigns since 1999.

Where they sit

Stack tier: Core Platforms (S)

Attribution & AnalyticsDemand Side Platform (DSP)Identity ResolutionConnected TV PlatformVerification & MeasurementProgrammatic Platform

Independent demand-side platform specializing in CTV and AI-powered programmatic advertising, positioned as a transparent alternative to walled garden ad platforms