EU Sovereignty Score
EU sovereignE-signaturesHeadquarters: FR

Subnoto: sovereignty score and 8 European alternatives

Subnoto is a French electronic signature platform focused on confidentiality. Users send and sign documents online, passwordless through passkeys, with real-time status tracking and automatic notifications. For developers there is a REST API with an OpenAPI specification, TypeScript and Python SDKs, webhooks and an MCP server for AI assistants. According to Subnoto, documents are processed inside secure enclaves (trusted execution environments), so they stay encrypted even during processing. The website says eIDAS advanced and qualified signatures are planned for 2026. Subnoto is delivered as SaaS.

Subnoto presents itself as a company made in France and belongs to the La French Tech ecosystem around Paris. By its own account the service runs on its own servers in France, so data stays in Europe. The company was founded by Cyril Leclerc and Corentin Mors. No foreign parent company is mentioned. The software 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 9, 2026
HeadquartersFR (EU)Verified by hand
Sovereignty modelVendor-hosted (EU)Verified by hand
Data hostingEUVerified by hand
Open-sourceNoVerified by hand
GDPR-compliantYesVendor-stated
CategoryE-signatures
TypeProduct
Websitesubnoto.com ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Subnoto

The European alternatives to Subnoto come from our knowledge base of over 6,200 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 Subnoto

Subnoto is headquartered in FR 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 Subnoto scores best on data residency.

Subnoto 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 Subnoto 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 Subnoto?

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

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

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

Subnoto is headquartered in FR (EU) and hosts data in EU. That makes Subnoto 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 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 Subnoto — GDPR-compliant & EU-hosted · EU Sovereignty Score