ABOUT Matthiassen.com

With more than two decades of experience, gained from thousands of hands-on hours, combined with loads of training.

We provide un-biased consulting, don't sell any products and integrity and confidentially is our pride and joy and what we sell.



René Matthiassen is the director and lead security consultant of Matthiassen Ltd.

His professional experience in IT security services field spans over more than 20 years. He has attained numerous industry certifications, allowing him to stay ahead of the evolving technologies in IT security.

René has worked with some of the largest companies in the nordics and in some of the most complex scenarios and environments.

Beside consulting, René lectures in various IT security training courses, for e.g. Teknologist Institute and IDA, Denmark.


Fun Fact: He enjoys traveling the world, snowboarding, and golfing. He is also passionate about playing guitar in his band



  • CCNA
  • CCNP
  • CISM
  • ISO 27001 Senior Lead Implementer
  • ISO 27001 Senior Lead Auditor



More than two decades of vast IT security experience. Contributor to ISO/IEC 27001:2013