Sentyron protects what matters most.

Sentyron is the Dutch high-assurance secure communication provider trusted to protect what matters most.

With more than twenty years of experience securing classified information, state secrets and vital systems, we deliver uncompromising secure communication and cryptographic solutions for government, defence and critical infrastructure. Our technology is built for environments where failure is not an option. Designed with an engineer’s and hacker’s mindset and certified at the highest assurance levels, including NATO COSMIC TOP SECRET.

Rooted in Dutch craftsmanship and strengthened by CR Group, we combine decades of cryptographic expertise with a clear European outlook. We deve ...