Guardtime

Guardtime is a deep-tech company pioneering verifiable trust in digital systems.

We develop data integrity technologies that ensure authenticity, transparency, and accountability—without reliance on trusted third parties. With origins in Estonia’s cybersecurity ecosystem, our solutions are deployed globally across government, defense, critical infrastructure, and the space domain.

In space, we focus on four key areas:

• Space traffic coordination and management

• Civil security from space - crisis management

• Supply chain traceability

• Earth Observation data trust and provenance

Our core technologies—like KSI® blockchain and Guardtime’s integrity assurance stack—deliver scalable, cryptographically-verified trust for digital operations where failure is not an option.