Adelphic

Mid-tier DSP known for cross-device targeting and omnichannel programmatic buying, acquired by Viant Technology in 2017

Adelphic was a demand-side platform (DSP) founded in 2010 that specialized in programmatic advertising across digital and connected TV channels. The company built its reputation on sophisticated cross-device targeting capabilities, allowing advertisers to reach audiences consistently across mobile, desktop, tablet, and emerging connected TV environments. Adelphic's platform was notable for its people-based marketing approach, leveraging deterministic data to identify and target real individuals rather than relying solely on cookies or probabilistic matching. The company positioned itself as a premium programmatic solution for brands and agencies seeking omnichannel reach with strong data transparency and audience insights. Adelphic supported a wide range of ad formats including display, video, native, and audio, and was recognized for its intuitive interface and robust reporting capabilities. Its technology stack emphasized real-time bidding (RTB) and private marketplace (PMP) deal execution, making it a competitive option in the crowded DSP landscape. In 2017, Viant Technology — the parent company of Myspace and operator of the Vindico video advertising platform — acquired Adelphic to strengthen its programmatic buying capabilities. Following the acquisition, Adelphic's technology was integrated into Viant's broader advertising cloud ecosystem. The Adelphic brand was eventually subsumed into Viant's platform offerings, with Viant rebranding its DSP capabilities under its own name. The acquisition marked the end of Adelphic as a standalone entity but significantly enhanced Viant's competitive position in the programmatic advertising market.