European Alternative
for digital signatures
GDPR-compliant e-signatures
sproof is 100% developed in Europe and operated in European data centers. No dependencies on US services, no Cloud Act risks – maximum data sovereignty and security for companies with the highest compliance requirements.
Our Mission: European
Sovereignty & Security
Why sproof?
sproof GmbH was founded to develop a comprehensive e-signature solution that is uncompromisingly secure, reliable and can be used internationally. 100% eIDAS & ZertES compliant, ISO 27001 certified and fully hosted in the EU – for companies that need to meet the highest compliance requirements.
- American surveillance laws:
US providers are subject to the Cloud Act – confidential data is not protected from access by authorities.
- European Signature Laws:
Only eIDAS-compliant signatures are legally secure and standardized in the EU.
- European Data Protection:
GDPR-compliant solutions guarantee the highest level of security – without being passed on to third countries.
- Place of jurisdiction Europe:
Full legal certainty through European jurisdiction – no dependence on US law.
All about the risks of the US Cloud Act and the need for European sovereignty.
White Paper - Cloud Act
What is most important for
your cloud strategy?
Full performance, without safety risks -
What companies should consider:
Top companies with critical infrastructure, banks, renowned tax and law firms rely on sproof sign for secure and legally valid signature processes.
Encrypted e-signatures
with the highest probative value
Highest security for e-signatures
- Aymmetric Encryption: Digital signatures with sproof sign forgery-proof and verifiable – for maximum integrity and highest evidential value.
- Integrated authenticity check: Validate signatures in the user interface or automatically via API – for maximum security and traceability.
- E-signature as evidence: An electronic signature with proof sign meets the highest legal standards and must not be rejected as evidence.
All your signature processes as a digital workflow in the cloud
Cloud platform for legally valid e-signatures
- Expert in e-signature projects: Specialized in the precise digitization of all signature processes.
- Signing internally & externally: Centrally managed cloud for internal and external contract processes. Incl. SSO and user management.
- International & legally valid: eIDAS-compliant, advanced and qualified e-signatures for the highest evidential value.
