Clavister and Netsecurity Join Forces to Secure Defence Information Systems
Örnsköldsvik, Sweden – 14 August 2025 – Clavister, a European leader in cybersecurity for mission-critical applications, announces a strategic partnership with Norwegian cybersecurity firm Netsecurity. This partnership focuses specifically on enhancing cyber defence capabilities for armed forces and tactical environments, through sovereign, high-assurance network security solutions built in Europe.
Netsecurity is one of Norway’s largest and most experienced cybersecurity firms, with operations across Oslo, Bergen, Stavanger, Kristiansand, Grimstad, Trondheim and Stockholm. With more than 170 employees and over 800 clients across the public and private sectors, Netsecurity has a clear societal mission: to protect our customers values in a time of increasing digital threats.
The company delivers end-to-end cybersecurity services throughout the Nordics and is a trusted supplier to the Norwegian total defence. Its services include 24/7 automated SOC monitoring (MDR), Norwegian National Security Authority (NSM) approved incident response (IRT), penetration testing, Operational Technology (OT) security, strategic advisory, and turnkey security operations.
With a fully Norwegian-based 24/7 SOC and support centre, staffed by highly certified experts, Netsecurity ensures local, responsive, and regulation-compliant protection – including for environments with elevated national security requirements. Netsecurity has extensive domain experience and is expanding its capabilities to meet the increasing demand from the defence sector.
The partnership between Clavister and Netsecurity is strategic and well-aligned with the sector’s requirements. Clavister´s technology is developed and maintained entirely in Sweden, with no third-country dependencies, and is already deployed in several NATO-aligned defence systems.
“This partnership with Netsecurity aligns perfectly with our vision to protect Europe’s most vital networks with trusted, sovereign technologies,” said John Vestberg, CEO of Clavister. “Netsecurity’s position in the Norwegian cybersecurity ecosystem makes them an ideal partner to accelerate our impact in this key market.”
Netsecurity will offer Clavister’s portfolio — including next-generation firewalls and tactical security products — within its managed security and integration services. Joint initiatives will focus on use cases in the defence and national security space.
“Clients in the defence and tactical domain require trusted, future-proof security built for the unique challenges of national infrastructure,” said Jan Søgaard, CEO of Netsecurity. “Clavister enables us to deliver just that, with technology developed in Sweden, free from third-country dependencies, and a proven track record in defence and public-sector deployments.”
About Clavister
Clavister is a specialised Swedish cybersecurity company, protecting customers with mission-critical applications for more than two decades. Founded and headquartered in Örnsköldsvik, Sweden, Clavister pioneered one of the first firewalls and continues to build robust and adaptive cybersecurity solutions since. Empowering a growing ecosystem of partners and resellers, we are serving customers in more than 100 countries with deployments across the public sector, energy, telecom and defence sectors.
The stock, Clavister AB, is listed at Nasdaq First North Growth Market. FNCA Sweden AB is the Company’s Certified Advisor.
For additional information, please visit https://www.clavister.com/, and follow us on our official LinkedIn and YouTube channels.
About Netsecurity
Netsecurity AS is a Norwegian cybersecurity company delivering advanced security services, consulting and integration to public and private sector. With deep expertise Netsecurity supports clients in managing digital risk and maintaining operational continuity across IT/OT environments.
For further information, please contact:
John Vestberg, President and CEO
Tel: +46 (0) 660 29 92 00
E-mail: john.vestberg@clavister.com
Jan Søgaard, CEO
Tel: +47 901 087 27
E-mail: jan@netsecurity.no
