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sproof is an Austrian-based startup company co-founded by Clemens Brunner,
Fabian Knirsch and Erich Höpoldseder. sproof is supported by the FH Salzburg
University of Applied Sciences Startup Center. 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.

Our products:
sproof registry: sproof registry creates a revolutionary and new kind of digital
signature that allows you to issue your document digitally and secure.
Furthermore, verification is easy, completely decentralized and does not require
your interaction.
sproof sign: sproof sign is an online signature collection service that is easy to use and makes the collection of signatures fast and easy.


Discover our recently published press news.
sproof sign: Digital signature tool launched with major customer on board
With sproof sign, the Salzburg-based start-up sproof has launched a digital signature tool. The experts for document certification are...
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