EU Sovereignty Score
EU sovereignE-signaturesHeadquarters: AT

sproof: sovereignty score and 8 European alternatives

sproof is an Austrian platform for electronic signing and identity verification. The suite consists of sproof sign for signatures and digital approval workflows, sproof ident for eIDAS-based identity checks, and an eID Hub giving access to European eID providers, including the EUDI Wallet. It also includes Fastlane for collecting signatures from external parties, a Widget for embedding signing in a customer's own web tools, and Validate for checking signature validity. Advanced (FES) and qualified (QES) signatures are supported. A web app and a REST API are available, and sproof is delivered as SaaS.

sproof GmbH is based in Puch bei Hallein, Austria. According to its website, data is hosted in ISO 27001-certified data centres in Europe, and sproof states it has no connection to third countries such as the USA. The website does not say who owns the company. The platform is not open source.

See the 8 European alternatives ↓Assess your stack with sproof pre-selected
MastodonLinkedInBlueskyXEmail
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
HeadquartersAT (EU)Verified by hand
Sovereignty modelVendor-hosted (EU)Verified by hand
Data hostingEUVerified by hand
Open-sourceNoVerified by hand
GDPR-compliantYesVendor-stated
Hosting signalOVH - OVH SAS, FR (FR)Technically measured
CategoryE-signatures
TypeProduct
Websitesproof.com ↗

The hosting signal shows the network that serves the vendor's website, often a CDN, and not necessarily where the service or your data is hosted. How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to sproof

The European alternatives to sproof 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

Is sproof one of many dependencies?

Score your whole stack in about three minutes. Free, no account needed.

Assess your stack →View a sample report (opens in a new tab)

Why digital sovereignty matters with sproof

sproof is headquartered in AT 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 sproof scores best on data residency.

sproof 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 sproof 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 sproof?

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

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

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

sproof is headquartered in AT (EU) and hosts data in EU. That makes sproof 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

See all →
Open in the alternatives dashboardMissing a vendor? Submit itAre you this vendor? You can also become a sponsor on the E-signatures page — with no effect on your score
8 European alternatives to sproof — GDPR-compliant & EU-hosted · EU Sovereignty Score