Commanders Act and First-id Team Up on 'Sovereign' Marketing Identity
French ad-tech firms Commanders Act and First-id have allied to embed first-party identification natively into a server-side gateway - pitching a European, cookieless alternative to platform-controlled identity in a post-cookie world.
The Alliance
Commanders Act and First-id announced an integration that natively embeds First-id's first-party identification into Commanders Act's server-side Gateway, letting brands unify identity data without heavy technical projects. Identifiers feed into the advertiser's CDP for deduplication, segmentation and cross-channel activation.
The pitch is European data sovereignty. It works across Safari and Firefox, reconciles online and offline data, supports the Meta, Google and TikTok Conversion APIs, and is framed as RGPD-compliant. Commanders Act CEO Michael Froment argues each company should 'construct its own data patrimony' with autonomy from big platforms.
Why It Matters
As third-party cookies fade, identity is the new battleground, and most solutions route brands back through the walled gardens. A homegrown, first-party alternative is France's bid to keep that identity layer independent and locally governed.
For advertisers, owning the identity layer is about leverage. If your measurement and targeting depend entirely on platforms, you cannot audit or move them; a sovereign layer gives you a counterweight and portability.
Marketing Minute's Take
The strategic point is bigger than one integration. Brands that treat first-party identity as owned infrastructure - not something rented from a platform - keep control of their most valuable asset as the cookie disappears.
Our advice: build and consolidate your first-party data now, insist on solutions that work independently of any single platform, and treat 'data sovereignty' as a practical resilience strategy rather than a slogan. The brands that own their identity layer will negotiate from strength.
Quick FAQ
What have Commanders Act and First-id announced?
They have integrated First-id's first-party identification into Commanders Act's server-side Gateway, letting brands unify identity data into their CDP without heavy technical work.
Why is this called a 'sovereign' identity solution?
It is a European, cookieless, RGPD-compliant approach that keeps identity data under the advertiser's control rather than routing it through the big platforms.
What should advertisers do about post-cookie identity?
Consolidate first-party data now, choose solutions that work independently of any single platform, and treat data sovereignty as a resilience strategy that preserves control and portability.
As the cookie dies, identity is the new leverage. If your targeting and measurement live entirely inside the walled gardens, you cannot audit them and you cannot leave. Owning your first-party identity layer is not a slogan - it is the difference between negotiating from strength and negotiating from dependence. - Daniel Nikolla, Founder of Merx Marketing
First-party identity is owned infrastructure, not a platform rental - the brands that control their own identity layer will keep leverage as third-party cookies disappear.
As cookies disappear, do you own your customer identity layer - or are you renting it from the platforms?
If you would like to know more about this topic, please contact us on danieln@merxmarketing.co.uk
Sources: The Media Leader, Commanders Act, MNTD.
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Written by Daniel Nikolla, Founder of Merx Marketing Ltd and Marketing Minute
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