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GroupM Case Study

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GroupM (WPP), the world’s leading advertising investment company

Led by Mathieu Morgensztern, CEO, GroupM France brings together the media agencies of the WPP group:

KR Wavemaker, Mindshare, Neo Media World, Mediacom and Keyade. GroupM France has dedicated departments: Business Media Science (media marketing studies, efficiency, data management), StudioM (content creation professions), GroupM Digital (specialized digital teams). GroupM France employs more than 1000 people.

GroupM France Background in numbers

Media investment
New Report Dashboard UI_September 2020

How we help them

Adomik  has released support for the reporting activities of GroupM’s (WPP) publishers and agencies. The Adomik Reporting for Agency program enables complete transparency in the programmatic supply chain.

Thanks to this collaboration, GroupM’s Programmatic Department (Programmatic Business Unit, PBU) has direct and real-time access to its programmatic investments made with market-leading publishers, such as Unify, Media.Figaro, Le Bon Coin, Le Point, Prisma Media, 366, and Webedia, regardless of the mode of purchase — auctions or fixed prices.

Adomik’s dynamic Report App now makes it possible to accurately connect the actual expenses of all of GroupM’s DSP seats (more than five DSPs and 25 seats in total, divided between agencies and advertisers) with all of the SSPs the publishers use (more than 20 in total) and to provide reliable reports more easily. 


The major difficulty in the programmatic ecosystem lies in the traceability of the financial flows of an advertising campaign from end-to-end and, therefore, in the reconciliation between the expenses of the advertiser and the revenues of the publisher (even with several DSPs and SSPs involved).

“The partnership between Adomik and GroupM is in line with our DNA, based on transparency. We particularly appreciate the established and trusting relationships between publishers and Adomik, and the time savings that this solution brings to our teams”.

Adomik Deal Cox Automotive - Recover your lost programmatic deal revenue

Laurence Milhau
General Manager of GroupM Digital

GroupM France

New Report Dashboard UI_September 2020


What was achieved

GroupM can now reduce the differences between agency reports and publisher reports to less than 5%, including on open auctions

Consolidated Data

Provide strong Programmatic reporting, Access consolidated & accurate data across their full stack

Zero Discrepancy

Harmonize their SSP data thanks to Adomik robust mapping engines with zero discrepancy

More efficiency

Increase in efficiency by reducing risk of error and saving time


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