News Center >

Nielsen and The Trade Desk unveil new strategic data measurement partnership for the open internet in Europe, Asia, Mexico and Canada

3 minute read | February 2022

The Trade Desk will contribute data to the Nielsen Identity System to international markets

NEW YORK – Feb. 17, 2022 – Nielsen (NYSE: NLSN) and The Trade Desk (Nasdaq: TTD) today announced a strategic partnership to power identity resolution for open internet measurement in key international markets around the world. The Trade Desk will help fuel Nielsen’s demographic data starting with France, Italy and the United Kingdom. Japan, Australia and Germany will launch on April 1, with plans to launch in other Asian and European markets, in addition to Canada and Mexico, on a regular cadence following the initial releases in 2022. 

Nielsen will integrate demographic data provided by The Trade Desk into the Nielsen ID System to provide more scope and accuracy in Nielsen’s digital ad measurement for the open internet, connecting digital impressions to demographics across millions of devices. Advertisers and publishers can use Nielsen Digital Ad Ratings with more confidence knowing that the solution is aimed towards appropriately assigning and deduplicating audience demographics across mobile and PC platforms when a digital ad is viewed. With this initiative, Nielsen becomes a preferred measurement provider of The Trade Desk and builds on the two companies’ longstanding relationship.

“This strategic partnership with The Trade Desk immediately scales Nielsen’s Identity System globally, and showcases our commitment to independent measurement and marketplace interoperability, facilitating an open ecosystem for the media industry, with audiences de-duplicated across multiple platforms,” said Karthik Rao, Chief Operating Officer, Nielsen. “We continue to evolve our technologies and methodologies as we move toward Nielsen ONE and this is a very important milestone for that vision of true cross-platform measurement across all screens, underpinned by a strong digital measurement capability.”

The Trade Desk is committed to working towards accurate and transparent measurement in service of an optimal advertising experience on the open internet. As part of this strategic partnership, The Trade Desk will provide demographic data to Nielsen’s Identity System. In doing so, this will help to advance more robust measurement and reporting across digital media, particularly over-the-page advertising, in key international markets that have most room to benefit.  

“As the world’s largest independent demand-side platform, The Trade Desk is in a prime position to provide the open internet with a standard of measurement that improves data-driven decisioning, advertising performance and transparency,” said Michelle Hulst, Chief Data Officer, The Trade Desk. “We have long believed that it takes all of us to support the digital media ecosystem, especially in the world of measurement, and look forward to advancing the open internet together with Nielsen internationally.”

As part of the Nielsen ID System, the Nielsen ID Graph is calibrated against, and validated by, Nielsen’s people-based panels and truth sets. This deal will further position Nielsen to scale its ID Resolution System globally and truly deliver deduplicated audiences across linear and digital platforms as part of Nielsen ONE, its cross-media measurement solution.  

About The Trade Desk

The Trade Desk™ is a technology company that empowers buyers of advertising. Through its self-service, cloud-based platform, ad buyers can create, manage, and optimize digital advertising campaigns across ad formats and devices. Integrations with major data, inventory, and publisher partners ensure maximum reach and decisioning capabilities, and enterprise APIs enable custom development on top of the platform. Headquartered in Ventura, CA, The Trade Desk has offices across North America, Europe, and Asia Pacific. To learn more, visit or follow us on Facebook, Twitter, LinkedIn and YouTube.

About Nielsen

Nielsen shapes the world’s media and content as a global leader in audience measurement, data and analytics. Through our understanding of people and their behaviors across all channels and platforms, we empower our clients with independent and actionable intelligence so they can connect and engage with their audiences—now and into the future.

An S&P 500 company, Nielsen (NYSE: NLSN) operates around the world in more than 55 countries. Learn more at or and connect with us on social media.


The Trade Desk

Pat Wentling


Sara Guainazzi