EU Sovereignty Score
EU sovereignCustomer Data Platform (CDP)Headquarters: NL

Relay42: sovereignty score and 8 European alternatives

Relay42 is a real-time customer data platform, founded in 2010, that unifies customer data and supports audience building, targeting and personalised experiences across digital and offline channels. It is aimed at marketers in larger organisations, and its products are now offered as Data Activation within Supermetrics, covering connecting and exporting data, storing and transforming it, analysing it, and acting on rules-based and predictive models to personalise marketing.

Supermetrics, headquartered in Helsinki, announced the acquisition of Relay42 on 18 June 2025, so the ultimate owner is a company in Finland, an EU member state. Relay42 itself originates in Amsterdam, and its former website now redirects to the Supermetrics site. The product is proprietary and not open source. The sources consulted do not state where Relay42 hosts customer data after the acquisition, so a European organisation should confirm the hosting region, the subprocessors and any changes since the takeover in its data processing agreement.

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Sovereignty score
71 / 1000 = high exposure
100 = sovereign
  • Jurisdiction SOV-2100
    Headquartered in the EU: European law applies
  • Data residency SOV-3100
    EU-only hosting
  • Cryptographic key sovereignty SOV-360
    Key management with a European vendor
  • Freedom from lock-in SOV-640
    Closed source: switching requires data migration
  • Source & runtime sovereignty SOV-4 · SOV-655
    Closed source, runtime with the vendor

SOV codes: the matching objective in the European Commission's Cloud Sovereignty Framework. Official source

How the score is calculated

Facts and evidence

Last checked October 9, 2026
Headquarters
NL (EU)Verified by hand
Ultimate parent company
FIVerified by hand
Sovereignty model
Vendor-hosted (EU)Verified by hand
Data hosting
EUVerified by hand
Open-source
NoVerified by hand
GDPR-compliant
YesVendor-stated
Category
Customer Data Platform (CDP)
Type
Product
Website
relay42.com ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Relay42

The European alternatives to Relay42 come from our knowledge base of over 6,800 vendors. We only list vendors headquartered in the EU or the EEA; fully European-owned vendors rank before vendors with a foreign owner. For each alternative you see the country, the open-source status and a short description.

Score per alternative: 0 = high exposure, 100 = sovereign

13 European Customer Data Platform (CDP) vendors are in the catalogue. View the whole category · Submit an alternative · View category on the map

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Why digital sovereignty matters with Relay42

Relay42 is headquartered in NL and therefore falls under European law: the GDPR, NIS2 and the Data Act. No foreign legislation can compel access to your data. The ultimate owner is based in FI, also within Europe.

Data is hosted exclusively in the EU, so Relay42 scores best on data residency.

Relay42 is closed source and hosted by the vendor. The encryption keys and the runtime sit with the vendor and switching requires data migration. Ask about bring-your-own-key, export options and open standards.

What this means for your organisation depends on your whole stack and context. The free assessment weighs Relay42 together with your other vendors and gives a total score, a heatmap and the main risk drivers.

Frequently asked questions

What is the best European alternative to Relay42?

It depends on your use case. Strong EU alternatives to Relay42 include Commanders Act, ContactPigeon and Spotler ActivatePro (formerly CrossEngage). On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Relay42?

Our list of EU alternatives to Relay42 is mostly commercial options. Browse the category on the map for open-source choices.

Is Relay42 GDPR-compliant and where is the data hosted?

Relay42 is headquartered in NL (EU) and hosts data in EU. That makes Relay42 an EU-sovereign choice in its own right; the EU alternatives on this page are comparable European tools.

Details and sources

Verified by handHeadquarters, owner, hosting locations and licence have been checked by us against public sources. Free of charge and for every vendor, not a paid label. Nothing in this knowledge base is taken over automatically. Last checked on October 9, 2026.

Sources

Public sources used in the latest check of this record.

Compliance evidence

The links below point to the vendor's own public documents. We only record what we found: a missing link means "not found publicly", not "not compliant".

No public compliance evidence has been recorded for this vendor yet. Do you know its DPA or subprocessor list? Something wrong? Suggest a correction

Digital sovereignty in Customer Data Platform (CDP)

Customer Data Platform (CDP): Unifying customer data across tools — identity resolution, audience segmentation and data activation for marketing and product teams. In this category the choice of vendor determines who has legal access to your data, where that data lives and how easily you can switch later.

Also in this category

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8 European alternatives to Relay42 — GDPR-compliant & EU-hosted · EU Sovereignty Score