Leadership
Leadership for
Trusted Cybersecurity
Our leadership and management form the foundation for trust, ensuring that Clavister operates with integrity, quality, and accountability in every aspect of our business.
board of directors
Andreas Hedskog
Chair of the Board / Chair of the Audit Committee
Andreas Hedskog is today chairman of the board of 4C Group AB (publ), a company he founded in 2000, starting as CEO, then working chairman of the board until the company was listed in 2022. Andreas is also a board member of a couple of other companies.
Born: 1974 Elected to the board: 2023
Education: MA University of Cambridge, OPM Harvard Business School, Reserve officer (Mj) Swedish Defense University, SERA IHEDN
Independent to the company and management: Yes
Independent to bigger shareholders: Yes
Holdings in Clavister: 1 755 709 shares
Staffan Dahlström
Director of the Board / Member of the Audit Committee
Staffan Dahlström is since 2009 the CEO of HMS Networks AB (listed on Nasdaq OMX Mid Cap) and one of its co-founders.
Born: 1967 Elected to the board: 2018
Education: Executive MBA and Computer Science studies
Independent to the company and management: Yes
Independent to bigger shareholders: Yes
Holdings in Clavister: 8 521 583 shares
Stina Slottsjö
Director of the Board / Member of the Audit Committee
Stina Slottsjö is the Senior Vice President Commercial at Telavox with more than ten years within the telecom and energy industry, leading and executing within sales.
Born: 1982 Elected to the board: 2022
Education:Master of Engineering Physics; Technology Management
Independent to the company and management: Yes
Independent to bigger shareholders: Yes
Holdings in Clavister: 3 500 shares
Tobias Öien
Director of the Board / Member of the Audit Committee
Tobias Öien is currently the Chief Experience Officer, IT Infrastructure at Advania and has been employed there since 2015 with assignments within the company. He is Business Unit Director for three business units; License & Software, Integration Platform and Modern IT (IAM & Cyber Security).
Born: 1972 Elected to the board: 2024
Education: MSc in Mechanical Engineering, Royal Institute of Technology, Lund University, Physio Therapist, Lund University
Independent to the company and management: Yes
Independent to bigger shareholders: Yes
Holdings in Clavister: 265 000 shares
Executive Management
John Vestberg
President / CEO
John Vestberg co-founded Clavister in 1997 and was imperative in the process leading up the release of the company’s first commercial security product, as well as a key driver in securing business with some of Clavister’s most important strategic accounts. Vestberg built up Clavister’s Research & Development department, and acted as the company CTO from 2003 until 2017, when he assumed the CEO responsibility. Before Clavister, Vestberg was a sole proprietor conducting IT consultancy projects for public administration as well as private firms.
Position held since: June 22, 2017
Education: Certified Upper Secondary School Engineer
Board assignments: Board member of Örnsköldsviks Industrigrupp
Holdings in Clavister: 1 410 200 shares, 4 637 652 warrants
David Nordström
Chief Financial Officer
David Nordström is an experienced fiduciary officer with wide experience and responsibility. He has been an authorized auditor, having been with PwC in Stockholm since 2011 with a wide latitude of projects and professional input. As main auditor for some ninety companies, Nordström has been in charge of larger auditing projects towards publicly listed clients.
Position held since: October 1, 2020
Education: Master of science in business and economics
Holdings in Clavister: 300 000 shares and 2 742500 warrants
Nils Undén
Chief Technology Officer
Since 1993 when he began taking on engineering management roles, Undén’s career has been defined by helping tech companies navigate their operating terrain to find the right products and strategies to succeed. Be that large international product organisations, start-ups across CRM, logistics, fintech and telecom solution providers, his first priority is to build compelling products for companies. Undén has a professional drive—based in an analytical/data driven approach—to guide software development teams to deliver innovative and rich solutions.
Position held since: February 1. 2020
Education: Bachelor of Science
Holdings in Clavister: 328 198 & 2 757 008 warrants
Maja Fiske
Chief Customer Success Officer
Maja Fiske is an experienced leader with a strong background in IT environments and user-centric software development. She is a trained behavioral scientist with a focus on usability and human behaviour in IT systems. She has a proven track record of driving customer-centric approaches and building high-performing teams. Since joining Clavister in 2018, Fiske plays a key role in developing the company’s customer success initiatives, leveraging her strong customer-centric mindset to strengthen Clavister’s customer experience strategy.
Position held since: 2025
Education: Master of Science in behavioral analysis in IT environments
Holdings in Clavister: 0