Matthias Vallentin
Founder & CEO
Matthias is the mastermind behind Tenzir. After completing his PhD and postdoc in computer science at UC Berkeley, he brings the Californian spirit and driven work ethos right into the heart of Hamburg, Germany. His dissertation work provides the foundation for Tenzir. When not coordinating the top-notch team, he seeks outdoor and cultural adventures.
Johan Hesse
COO & VP Sales
Johan oversees day-to-day operations and is the driving force behind business development at Tenzir. As a mathematician, he can recount a career of close to 25 years in the high-assurance area of cybersecurity at secunet, liaising with the leading European security authorities and managing foreign business. Recreationally, you might come across him in an opera house somewhere around the globe.
Julia Vallentin
CLO
Julia is Tenzir's in-house counsel and responsible for the contractual relationships with customers and clients. In addition, she advises on all questions of the operational business. Before joining Tenzir, Julia was an Associate in an international law firm, focusing on IP, antitrust and IT law. Outside of the office, Julia spends time with her family and indulges in the art and cultural scene of Hamburg.
Advised by experts
Dr. Kelley Misata brings over a decade of leadership as President of the Open Information Security Foundation (OISF) and is the Founder and CEO of Sightline Security. With a career spanning cyber and information security operations, privacy, strategic communications, and open source, she has made a lasting impact on the field. Through her instrumental role as Director of Communications with the Tor Project, Dr. Misata has consistently championed the power and sustainability of open source. Her unique ability to connect technical innovation with real-world application, combined with her visionary approach to open source as a business and community driver, makes her an invaluable asset to Tenzir.
