We audit. You trade with confidence.
ABC is the media industry's independent auditor - certifying data and providing assurance against industry standards, so you can buy and sell with confidence.
Access trusted data Explore our Assurance Services
Building trust across the media landscape
Data
Industry standard media data. Enabling advertisers, agencies and media owners to plan, buy and trade confidently.
Published Media
Verification of print and digital circulation, distribution and audience claims, helping publishers prove performance and buyers make informed decisions.
Digital Advertising
Assurance to recognised standards, supporting transparency and accountability across online advertising supply chains.
Retail Media
Audits of networks and technology companies, building trust in measurement, delivery and accountable trading.
COUNTER
Verification of COUNTER usage reports, ensuring accurate, comparable data for publishers, vendors and libraries.
TV / VoD
Audit services for TV and video measurement, helping validate data, processes and industry confidence.
Bespoke Assurance
Tailored assurance for claims, standards and processes, helping organisations demonstrate credibility and build stakeholder trust.
Other Services
Additional services supporting trusted measurement, including data privacy, viewability and access to the Spiders & Robots exclusion list.
Trusted by leading media businesses
We work with companies, brands and organisations from all across the media industry. Including Advertisers, Publishers, Media Buyers.
Our commitment to you
As your industry-owned auditor, we're dedicated to delivering trustworthy data and assurance services you can rely on. Here's what you can expect from us.
Value for money
Quality industry partnerships
Global services
Qualified teams
- Chartered Accountant (ACA)
- Certified Internal Auditor (CIA)
- Certified Information Privacy Professional/ Europe (CIPP/E)
- AI Governance Professional (AIGP)
- Certified Information Systems Auditor (CISA)
Heritage and innovation
Company values
Industry organisations we work with
Ad fraud is a global issue and, by working with TAG and expert auditors like ABC, these companies are showing their commitment to fighting fraud across the digital supply chain.Mike Zaneis
The ABC Audit is crucial in ensuring that the census data we collect from broadcasters’ VOD services meet the standard that the industry expects from Barb. Justin Sampson
ABC is an integral part of the COUNTER community, working alongside the Technical Advisory Group to help ensure that everything we discuss is practicably auditable. Tasha Mellins-Cohen
ABC is a highly regarded organisation and plays a key role in supporting the credibility and commercial success of many of our members. Sajeeda Merali
For over 90 years, ABC has set the standard for trust in media measurement. As the industry evolves, we’re building that same confidence beyond print, bringing clarity and accountability to every channel we serve.Andrew Hirsch
The agencies we represent invest hundreds of millions in advertising on behalf of their clients every year. For those investment decisions to be well-founded, the data underpinning them needs to be independently audited - not self-reported by the very media owners seeking that spend. That’s the assurance ABC provides, and why its independence matters as much today as it ever has.Graeme Griffiths
Latest news
Why Trusted Measurement Matters More Than Ever in Retail Media
An interview with Liv McCullagh, IAB UK’s Retail Media Lead Retail media is now one of the most important forces in UK digital advertising. As investment grows, so does the need for...
