EU sovereignCybersecurityHeadquarters: DE

SYNRION x.ONE: sovereignty score and 8 European alternatives

SYNRION x.ONE is a suite from keyONE GmbH for managing PKI, certificates and identities centrally. It links enterprise PKI and certificate lifecycle management (CLM) with strong identity and continuous trust monitoring. The x.BIND module controls certificate and cryptographic service lifecycles and binds them to applications, x.ID manages YubiKeys, PIV certificates and FIDO2 in a browser with Microsoft Entra ID integration, and x.PULSE observes endpoints and trust relationships without agents. You can start with one module. For x.ID the vendor describes cloud, on-premises or hybrid deployment.

keyONE GmbH is based in Lebach, Germany; its website names no parent company. The pages reviewed do not say where the cloud variant is hosted, so ask the vendor. With an on-premises or hybrid deployment you keep keys and certificate data in your own environment. keyONE also offers consulting and training around PKI. For European organisations this is a German vendor with no foreign owner mentioned. No open-source code is mentioned.

See the 8 European alternatives ↓Assess your stack with SYNRION x.ONE pre-selected

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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 14, 2026

Headquarters	DE (EU)Verified 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	Cybersecurity
Type	Product
Website	keyone.one ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to SYNRION x.ONE

The European alternatives to SYNRION x.ONE come from our knowledge base of over 8,400 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

181 European Cybersecurity 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 SYNRION x.ONE

SYNRION x.ONE is headquartered in DE and therefore falls under European law: the GDPR, NIS2 and the Data Act. No foreign legislation can compel access to your data.

Data is hosted exclusively in the EU, so SYNRION x.ONE scores best on data residency.

SYNRION x.ONE 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 SYNRION x.ONE 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 SYNRION x.ONE?

It depends on your use case. Strong EU alternatives to SYNRION x.ONE include Actalis, Advenica and Aikido Security. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to SYNRION x.ONE?

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

Is SYNRION x.ONE GDPR-compliant and where is the data hosted?

SYNRION x.ONE is headquartered in DE (EU) and hosts data in EU. That makes SYNRION x.ONE 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 14, 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

Cyber Resilience Act

Public signals that relate to the EU Cyber Resilience Act. They do not count towards the score. A missing line means "not found publicly".

We found none of these signals on the vendor's own site when we checked.

For products in scope of the CRA, CE marking is required from 11 December 2027; this cannot be checked yet.

Checked on October 14, 2026. What is the Cyber Resilience Act?

In the changelog

Earlier changes to this page, as listed in the public changelog.

125 European vendors from security and quality-label registers (October 14, 2026)

Digital sovereignty in Cybersecurity

Cybersecurity: Threat detection, endpoint protection, SIEM, vulnerability management. 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.

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