Clavister is a Swedish cybersecurity company headquartered in Örnsköldsvik, Sweden, publicly listed on the Swedish stock exchange. The company specializes in cybersecurity solutions for mission-critical applications, with a particular focus on defense, public sector, and telecommunications markets. Clavister's product portfolio includes network security solutions such as next-generation firewalls, as well as cross domain solutions — technologies that enable secure information sharing across different security classification levels. The company has partnerships with defense industry players, including a notable collaboration with Saab for integrating cross domain solutions into advanced European defense systems. The company positions itself within the European cybersecurity ecosystem, emphasizing sovereign and trusted security infrastructure for critical environments. Its solutions are designed to operate in high-assurance contexts where reliability, security certifications, and compliance with stringent standards are essential. Clavister serves enterprise and government customers, particularly those operating in regulated or defense-related sectors where mission continuity and data integrity are paramount. The company develops both hardware and software-based security platforms, including virtualized and cloud-compatible variants of its firewall and network security products. As a publicly traded company (listed on Nasdaq First North Growth Market in Sweden), Clavister publishes quarterly and annual financial reports. The company has been operating for several decades and maintains a focus on the European market, though it serves customers internationally.