EU sovereignE-signaturesHeadquarters: PL

SIGNIUS: sovereignty score and 8 European alternatives

SIGNIUS is a Polish company that develops software for electronic document signing, automated sealing and digital identity verification (KYC). Its platform supports online signing, API integration and on-premise deployment. According to the website, it can be run locally, in a hybrid set-up or as SaaS. Its KYC and anti-money-laundering features target customer onboarding. For qualified signatures the company works with EuroCert, a certified trust service provider.

The company is based in Poznań, Poland. The website names no owner or parent company, and it states no hosting location for the SaaS option. According to the site, its services comply with the eIDAS regulation and the EU GDPR. For a European organisation, the on-premise and hybrid options allow data to stay within its own infrastructure, while the SaaS option depends on hosting terms that should be confirmed in the contract.

See the 8 European alternatives ↓Assess your stack with SIGNIUS 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 11, 2026

Headquarters	PL (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	E-signatures
Type	Product
Website	signius.eu ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to SIGNIUS

The European alternatives to SIGNIUS 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

51 European E-signatures 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 SIGNIUS

SIGNIUS is headquartered in PL 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 SIGNIUS scores best on data residency.

SIGNIUS 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 SIGNIUS 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 SIGNIUS?

It depends on your use case. Strong EU alternatives to SIGNIUS include A-Trust, Agrello and Assently. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to SIGNIUS?

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

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

SIGNIUS is headquartered in PL (EU) and hosts data in EU. That makes SIGNIUS 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 11, 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 E-signatures

E-signatures: Electronic signatures, trust services, eIDAS services. 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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