Producer and provider of signature software and services as well as eIDAS trust service provider.


digital signing, simple as that.

primesign is a leading provider of products, services, and solutions for electronic signatures. With more than 20 years of experience, everything we do revolves around the digitization and optimization of signature processes. Since June 2016, we have also been an eIDAS trust service provider and operate an internationally active trust center for qualified signature and seal certificates. Every day, thousands of certificates are issued here and millions of signature transactions are processed.

As an innovative manufacturer and provider of signature software and services and at the same time an eIDAS trust service provider, our central focus is on providing efficient and consistently optimized solutions - from the initial issuance of a signing certificate to its use. We offer strong expertise in solutions and are the ideal partner for the highest level of legal assurance. We stand for secure economic activities in the digital world of tomorrow.

primesign is based in Graz and has been part of the CRYPTAS Group since 2016.