Digital signature solutions

sproof is reinventing digital signing and is creating tools for digitizing your business processes. sproof allows you to fast and easy integrate digital signatures in your existing processes and tools:

  • 5 Minutes to get your digital signature.
  • 100% legally-binding with qualified digital signatures.
  • 100% GDPR-compliant.
  • Sign yourself and collect signatures.
  • Working on documents together.
  • Automation with API and integrations.


  • SaaS, Legal


  • Austria

Founding Year

  • 2019

ESAC Invested

  • 2021

Web & social media

Related News

sproof Wikarus Award

sproof is nominated for the Wikarus Award

The Business Award WIKARUS – Salzburg's most important award for outstanding entrepreneurial and innovative achievements – goes into the next round. We are unquestionably proud, that our portfolio company sproof is one of the nominees in the category "Innovation". Congratulations to the whole team!
Secure digital signature for private banking

Sproof starts cooperation with Kyocera

Our portfolio company, the Salzburg-based startup Sproof, which specializes in digital signatures, was able to win over a prominent cooperation partner.