Clavister
Computer and Network SecurityVästernorrland, Sweden51-200 Employees
Clavister is a Swedish cybersecurity company that protects organizations running mission-critical applications by delivering network security and identity and access management solutions. Headquartered in Örnsköldsvik, Västernorrland, the company has more than two decades of experience and originated as an early developer of firewall technology. It applies its security capabilities to safeguard networks, users and sensitive information across critical infrastructure, the public sector, energy, telecom and defence sectors. It serves customers in more than 100 countries and is positioned as a European cybersecurity vendor focused on digital sovereignty and resilient security for essential operations. It has been listed on Nasdaq First North since 2014. In May 2025, Clavister announced the launch of the RSG-200, a defence product that secured an initial customer order.