
Building a universal ID for digital advertising
ID5 is the independent shared identity infrastructure for ad tech platforms and premium publishers
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The Advertising Identity Guide
Learn how identity works today on the web and what will change with the deprecation of third-party cookies
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Join ID5 Inside
Learn more about our partnership programme, designed to create better identification infrastructure for digital advertising
Learn moreID5 provides premium publishers and ad tech platforms with a universal ID solution that enables user-level identification without relying on third-party cookies.
To learn how ID5’s solutions can help identify users in a privacy-compliant way, improve match rates and increase programmatic revenue, get in touch
Contact UsCookie-less solution
ID5’s Universal ID solution enables publishers and ad tech companies to identify 100% of users even in browsers where 3rd party cookies are blocked
Privacy-by-design
ID5’s privacy-by-design technology enforces consumers’ and publishers’ choices and ensures that consumers’ data is only shared with approved vendors
Scale and reach
ID5 works with 70+ ad tech platforms, is active on more than 100,000 websites and reaches over 400M users per day globally
"We are looking forward to bringing people-based addressability across web, mobile apps and CTV environments. Through our partnership with ID5, we are able to offer significantly higher reach and user addressability for buyers across all channels delivering superior monetisation capabilities to our publishers. This capability will be crucial as adoption grows for alternatives to the third-party cookie within the digital advertising ecosystem."
Emma Newman
Cheif Revenue Office
"As an industry, we need to improve our identification capabilities. ID5 has come up with a strong solution that aligns the interests of all stakeholders. We are committed to supporting their efforts in building a shared identification infrastructure that we can all leverage to make programmatic work better."
Arnaud Créput
Chief Executive Officer
"Our global integration with ID5’s Universal ID enables us to better support the cookieless digital advertising ecosystem by remaining ID agnostic while also ensuring the continued delivery of addressable audience profiles at scale for brands and advertisers."
Kristina Prokop
Co-founder and CEO
"Identifying users in a scalable, efficient and privacy compliant way is a key challenge for Ad Tech. We believe that there is value in a neutral party like ID5 building an independent user identification infrastructure."
Jochen Schlosser
Chief Strategy Officer



