Viant provides a people-based advertising platform that enables brands to reach real people across channels using proprietary identity data, offering a privacy-forward alternative to cookie-based targeting in programmatic advertising.
Last updated Feb 8, 2026
Mid-tier independent DSP with focus on people-based advertising and identity resolution
Viant Technology LLC is a publicly-traded advertising technology company that operates a people-based advertising platform designed to help brands and agencies execute programmatic digital advertising campaigns. Founded in 1999 and headquartered in Irvine, California, Viant has evolved from an early internet advertising pioneer into a sophisticated demand-side platform (DSP) provider. The company went public via a direct listing on NASDAQ under the ticker symbol DSP in February 2021. Viant's core offering is the Viant DSP (formerly known as Adelphic), which enables advertisers to plan, buy, and measure digital advertising across multiple channels including connected TV (CTV), linear TV, mobile, desktop, audio, and digital out-of-home (DOOH). The platform is distinguished by its people-based approach to advertising, leveraging Viant's proprietary identity graph that contains data on over 250 million individuals and 115 million households in the United States. This identity resolution capability allows advertisers to target audiences based on actual people rather than cookies, making it particularly valuable in the evolving privacy-conscious advertising landscape. Viant primarily serves enterprise brands and advertising agencies, positioning itself as a privacy-forward alternative to walled garden platforms.
Omnichannel demand-side platform for programmatic advertising across CTV, linear TV, mobile, desktop, audio, and DOOH
Proprietary identity graph containing deterministic data on over 250 million people and 115 million households
AI-powered optimization and predictive analytics for campaign performance
Self-service interface for advertisers to manage campaigns independently