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Brief
PubMatic Identity Hub

PubMatic Identity Hub

Identity Hub gives publishers a single integration point to activate and manage multiple identity solutions simultaneously, maximizing addressable inventory and CPMs without the complexity of individual ID partner integrations.

pubmatic.comRedwood City, California, United StatesFounded 2020Parent: PubMatic

Last updated May 11, 2026 by the ATDb Editorial Team

Industry
Identity & Addressability / Supply-Side Platform
Business Model
Platform/SaaS (part of PubMatic SSP offering)
Target Market
Enterprise
Employee Count
1001-5000
Stock Symbol
PUBM
Parent Company
PubMatic
API Available
Yes
Market Position

A leading SSP-native identity management solution, leveraging PubMatic's publisher relationships and scale to simplify multi-ID adoption at the supply side

Overview

PubMatic Identity Hub is a publisher-focused identity management product built on top of the Prebid User ID module framework. Launched in 2020, it allows publishers to integrate and manage multiple third-party identity solutions through a single, unified interface rather than implementing each ID solution independently. This dramatically reduces the technical overhead for publishers navigating the fragmented identity landscape as the industry moves away from third-party cookies. The product supports a wide range of identity solutions including The Trade Desk's Unified ID 2.0 (UID2), ID5, LiveRamp Authenticated Traffic Solution (ATS), LiveIntent, and others. By centralizing these integrations, Identity Hub helps publishers maximize addressability across their inventory, ensuring that as many bid requests as possible carry a recognized identity signal that buyers can act on. This directly improves publisher yield and CPMs in a cookieless or cookie-limited environment. As a product of PubMatic—a publicly traded supply-side platform (SSP) with significant scale in programmatic advertising—Identity Hub benefits from deep integration with PubMatic's broader sell-side infrastructure. It positions PubMatic as a strategic partner for publishers managing the identity transition, differentiating the SSP in a competitive market where identity readiness is a key buying criterion for publishers evaluating supply-side partners.

Products & Features

Identity Hub Core

Centralized management layer built on Prebid User ID module enabling simultaneous activation of multiple identity solutions

UID2 Integration

Native support for The Trade Desk's Unified ID 2.0 for authenticated and probabilistic identity

ID5 Integration

Support for ID5's shared identity infrastructure for publishers and ad tech platforms

LiveRamp ATS Integration

Integration with LiveRamp's Authenticated Traffic Solution for people-based identity

LiveIntent Integration

Support for LiveIntent's email-based identity solution

Identity Reporting & Analytics

Dashboards and reporting to help publishers understand identity match rates and addressability across their inventory

Key Features
Single Prebid-based integration for multiple ID solutionsSupport for UID2, ID5, LiveRamp ATS, LiveIntent, and other ID partnersReal-time identity signal passing in bid requestsIdentity match rate reporting and analyticsNo-code or low-code setup for publishers already using PrebidContinuous addition of new identity partner integrationsWorks across web, mobile web, and app environments
Use Cases
Publishers preparing for third-party cookie deprecation seeking to maintain addressabilityPublishers wanting to maximize bid density by passing recognized identity signals to DSPsPublishers reducing technical complexity of managing multiple ID partner contracts and integrationsSSP-level identity activation to improve CPMs on authenticated and logged-in inventoryPublishers benchmarking identity match rates across different ID solutions
Customer Segments
Premium digital publishersNews and media publishersProgrammatic-first publishersPublishers with authenticated/logged-in audiencesAd networks and supply-side aggregators
Corporate history
  • 2020Founded
See integrations with PubMatic Identity Hub (8)

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