EU Sovereignty Score
EU sovereignE-signaturesHeadquarters: DE

SIGN8: sovereignty score and 8 European alternatives

SIGN8 offers digital signatures and seals that, according to the vendor, comply with eIDAS. The company presents itself as a qualified trust service provider and supplies solutions for both remote and local signing. These run through a cloud signing portal, through local signing with a signing token or, for organisations that manage their own digital certificates, through an on-premises option. It also provides signing APIs, S/MIME with bring your own key (BYOK), and solutions for the EUDI Wallet and digital product passports. The vendor says its technology is developed in-house.

SIGN8 GmbH is headquartered in Munich, Germany, with a second location in Oldenburg, and therefore operates under German and European law. Its website does not name a foreign parent company. It also does not state in which region the cloud service is hosted, so organisations that need this information should ask the vendor. The on-premises option and customer-managed keys (BYOK) can give organisations more control over certificates and keys. SIGN8 is not open source.

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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 5, 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
E-signatures
Type
Product
Website
sign8.eu ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to SIGN8

The European alternatives to SIGN8 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 SIGN8

SIGN8 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 SIGN8 scores best on data residency.

SIGN8 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 SIGN8 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 SIGN8?

It depends on your use case. Strong EU alternatives to SIGN8 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 SIGN8?

Our list of EU alternatives to SIGN8 is mostly commercial options. Browse the category on the map for open-source choices.

Is SIGN8 GDPR-compliant and where is the data hosted?

SIGN8 is headquartered in DE (EU) and hosts data in EU. That makes SIGN8 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 5, 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.

Also in this category

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8 European alternatives to SIGN8 — GDPR-compliant & EU-hosted · EU Sovereignty Score