VENDOR IN FOCUS: Clavister, 25 years of Swedish-quality cybersecurity
Updated: Oct 29
Clavister is a cybersecurity technology company founded in Sweden in 2001, best known for its NetWall and NetShield firewall solutions. Beyond everyday use, Clavister firewalls are also found in highly sensitive environments, including military networks, combat vehicles and tanks. It is one of the few European vendors whose technology meets the highest security and availability requirements.
What makes Clavister’s technology special?
What sets Clavister apart is that all of its firewall software, from the very first line of code, has been developed entirely in Sweden. Unlike many other vendors, Clavister’s operating system is not based on any commonly used kernel technology (e.g. Linux), which means:
exceptionally fast start-up and restart,
a minimal attack surface,
and significantly fewer vulnerabilities (CVEs) than global competitors.
Clavister has dozens of times fewer vulnerabilities than the well-known major vendors.
A low number of vulnerabilities means:
A significantly lower likelihood of the firewall falling victim to an attack.
Much faster security patch management, which reduces workload and potential downtime.
Lower total cost of ownership over the entire life cycle of the solution (TCO).
Why should you choose Clavister?
Very low number of CVEs (vulnerabilities)
Low cost of ownership thanks to scalability and simple management
Suitable for everything from edge devices to data centres
Cloud native virtual firewalls and CNF support
Modern Zero Trust architecture
Fully featured central management (InCenter) at no extra cost
Certified: CC EAL4+, NATO NIAPC
Proven use in military and critical infrastructure
What makes Clavister special as a partner?
Clavister is a small, agile and trustworthy European vendor that operates very differently from its large competitors. Swedish modesty shows in the fact that Clavister does not make inflated sales promises: its product datasheets are conservative, but actual performance and support exceed expectations.
Unlike large corporations, Clavister’s customers do not disappear into an “endless support queue”. Reaching the right person is quick, because every customer matters: smaller organisations also receive personal, high-quality support.
Clavister has consistently stood for European origin, independence and digital sovereignty. What used to be a rather idealistic message has now become a practical geopolitical necessity.
Why Clavister, and why now?
Regulations such as NIS2, GDPR, DORA and, increasingly, national supply chain security requirements stress that the origin and controllability of IT solutions are directly linked to risk mitigation.
At the same time, there is a growing political risk that non-European technology could become a tool in diplomatic conflicts. In today’s world, the origin of information technology carries enormous weight.
In summary:
If you are looking for a trustworthy, independent firewall vendor of European origin that can offer:
the functionality you actually need
an extremely low level of vulnerabilities
a flexible and transparent licensing model,
high performance,
lower costs
then Clavister should definitely be at the top of your list.
Replicant IT is Clavister’s official partner in Estonia. Get in touch and let’s discuss how to take your network security to a new level with Clavister while bringing down risk and cost.
