COMPANY

ID5

ID5 is a privacy-first identity infrastructure for cookieless digital advertising.

Analyst Perspective

ID5 is a private AdTech company that provides identity infrastructure for digital advertising in cookieless, privacy-first environments. Its core products include a universal identifier, an identity graph, and interoperability tooling used by publishers, SSPs, DSPs, data platforms, advertisers and agencies to improve addressability, match rates, bid enrichment, audience activation and measurement across web, in-app, audio and CTV environments. The company generates value by making previously unaddressable inventory more monetisable and by helping buy-side and sell-side participants improve campaign efficiency. Its commercial model appears hybrid: broad ecosystem adoption is encouraged through free or low-friction deployment of its ID product, while revenue is generated through paid graph access, data assets, enrichment, interoperability and commercial agreements tied to performance and identity services. The 2025 acquisition of TrueData expanded its US footprint and strengthened its identity datasets.

Analyst Signal Briefing

Updated: 2 Jul 2026

Publicis Groupe’s $2.2 billion acquisition of LiveRamp has positioned ID5 as a prominent independent alternative for identity and data connectivity, as agencies seek to mitigate neutrality risks. CEO Mathieu Roche has engaged in industry dialogue regarding the evolving "identity economics" and infrastructure shifts resulting from this consolidation. Concurrently, ID5’s technology is being utilised within sell-side AI agentic workflows and first-party data clean rooms to facilitate deterministic targeting. These developments highlight ID5’s strategic relevance as the industry transitions toward interoperable, patchwork identity stacks in a post-LiveRamp environment.

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Category Differentiation

ID5 is not a consumer identity app or login provider for end users. It is an AdTech infrastructure company focused on privacy-first identity, graph enrichment and interoperability for digital advertising.

ID5: About

ID5 operates a B2B identity infrastructure model for the advertising ecosystem. It builds proprietary identity resolution technology and data assets that connect fragmented signals across devices and environments, enabling publishers and platforms to increase monetisation while helping buyers improve targeting and measurement. Value is created through ecosystem integrations, graph enrichment, interoperability and identity-linked data services that become more useful as adoption broadens across supply and demand partners.

How ID5 Works & Monetises

Business model analysis and core revenue streams

ID5 uses a hybrid monetisation strategy. The ID5 ID is positioned as a low-friction or free adoption layer to drive ecosystem penetration among publishers and platforms. Revenue is then captured through paid access to the ID5 Graph, identity enrichment, data assets such as TrueData, audience activation, interoperability services and commercial agreements with ecosystem partners that benefit from higher CPMs, better fill rates, improved match rates and stronger campaign performance.

Revenue Channels

Identity graph access and enrichmentSaaS / data licensing
Universal ID ecosystem monetisationCommercial partner agreements / take-rate
Data assets including acquired identity datasetsData licensing
Interoperability and partner integration servicesEnterprise commercial agreements

Products & Services in Categories

Verified structural categorizations from the graph

ID5: Key Subsidiaries & Acquisitions

View full acquisition footprint

Recent Signals (ID5)

DigidayJun 25, 2026

Race for Post‑LiveRamp Successor Underway

Digiday reports from Cannes Lions that the ad industry is already positioning to replace LiveRamp after Publicis Groupe’s intended acquisition. Attendees and vendors — including Hightouch, MadConnect, and identity specialists — pitched alternatives ranging from cloud‑native activation layers (built on Snowflake, Databricks or BigQuery) to fragmented identity‑graph and clean‑room solutions. Sources say the deal accelerated agencies' moves away from LiveRamp contracts and is likely to trigger strategic M&A as buyers seek to assemble marketplace connections, onboarding pipes and identity capabilities. The consensus view is that no single vendor currently matches LiveRamp’s combined graph, onboarding integrations and marketplace breadth, so the near‑term outcome will be interoperating, patchwork stacks and a wave of consolidation.

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https://triscari.substack.com/feedJun 18, 2026

Revving's Transactional Funding: Interview with CEO Chris Pettit

Quo Vadis published an interview with Chris Pettit, CEO and co‑founder of Revving, describing Revving’s Transactional‑Based Funding model which uses verified transaction data to advance earned revenue and reduce cash‑flow delays in the advertising supply chain. Pettit argues payment timing constrains choices for smaller and scaling AdTech businesses and that advancing earned revenue democratizes funding versus traditional invoice-based finance. The piece links the funding approach to emerging agentic advertising workflows and says Revving is "MCP‑ready" for agentic buyer‑seller systems, suggesting funding could become integrated into real‑time commercial workflows. The post also lists several Cannes Lions events (including an off‑the‑record lunch with Michael Rubenstein of Firsthand AI on June 25) and was published on 2026-06-18.

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https://triscari.substack.com/feedJun 12, 2026

Publicis Reframes Identity with LiveRamp Acquisition

Quo Vadis published an analysis and hosted an interview with Mathieu Roche to unpack Publicis’s acquisition of LiveRamp and its implications for identity economics in advertising. The piece argues Publicis bought positional infrastructure and data-exchange capability rather than short-term profits, following prior buys such as Epsilon and Lotame. It frames identity as a means of exchange (a currency that enables trades of inventory, audience data and measurement) and revisits the 'Identity Trade-Off Frontier'—the historical tension between scale and ID precision—arguing recent infrastructure advances have expanded that frontier. The article introduces the 'Gravity Theory of Data Trade' to explain network effects and raises neutrality and lock-in questions now that LiveRamp sits inside a major holding company. The post also lists related Cannes events and calls out wider industry shifts from cookies toward infrastructure and collaboration.

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ID5: Frequently Asked Questions

What is ID5?

ID5 is a B2B AdTech company that provides privacy-first identity infrastructure, including a universal ID and identity graph for digital advertising.

Who uses ID5?

Its users are publishers, SSPs, DSPs, data platforms, advertisers, agencies and other adtech partners that need cookieless identity and enrichment.

How does ID5 make money?

It monetises identity infrastructure through paid graph access, enrichment, data assets, partner agreements and related enterprise identity services.

Company Facts

Founded
2017
Headquarters
8 Devonshire Square, 6th Floor, London EC2M 4YJ, United Kingdom.
Core Segment
AdTech Vendor
Company Size
50–200
Official Link
id5.io