ID5 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

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Cookie-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


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 100+ ad tech platforms, is active on more than 60,000 websites and reaches over 3B users per month globally