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Unified ID 2.0

Ventura, California, United States · Founded 2021

51-200 employees · NASDAQ:TTD

Sourced & current · updated May 25, 20260 of 4 facts verifiedWebsite

Unified ID 2.0 is an open-source, privacy-focused alternative to third-party cookies, developed by The Trade Desk, a leading advertising technology company. It aims to provide a more transparent and user-centric approach to digital advertising while maintaining the functionality of traditional cookie-based targeting.

Where they sit

Stack tier: Ecosystem Services (A)

Identity ResolutionPrivacy-First Advertising

One of the most widely adopted open-source cookie-replacement identity frameworks in programmatic advertising, with broad DSP, SSP, publisher, and data partner adoption globally.

Ownership

Parent: The Trade Desk (founding contributor); governed by Prebid.org / PRAM
Pre-call brief from ATDb — sourced from the live database, current as of May 25, 2026. Not a static screenshot.