We are a deep-tech company focused on information-theoretically secure solutions.

QuBalt provides crypto-agility, secure software updates, and authentication of mission-critical data and QKD links, for systems that must stay secure when their cryptography is broken, and for their whole operational life.

// Who We Are

An independent European cryptography company, from research to delivery.

QuBalt is an independent, R&D-driven deep-tech company providing quantum- and cryptanalysis-secure cryptographic solutions: algorithms, software, hardware, and IP combined into security systems. We are headquartered in Riga (Latvia) with a second office in Hamburg (Germany), and have a senior team of 8.

Our solutions are built on information-theoretically secure foundations, making them secure against both quantum and cryptanalytic attack. We serve the aerospace, defence, and critical-infrastructure markets, are a technology supplier to the European Space Agency (ESA), and support customers from research and consulting through to engineering and delivery.

// Current development

Our current development is a quantum-secure software-update, crypto-agility, and data-authentication system for remote, inaccessible systems such as satellites:

  • Secure after deployment: mission-critical software and cryptographic algorithms are updated securely once the system is fielded.
  • Authenticity that does not expire: it stays secure against quantum computers, AI, and future cryptanalysis.
  • ESA-validated: validated to TRL 4 under the ESA GSTP programme.
  • In-orbit demonstration: selected by ESA for in-orbit demonstration aboard its CyberCUBE satellite in 2026.
// Research

Research drives QuBalt. We maintain active relationships with the University of Latvia and the University of Tartu (Estonia), and pursue:

  • Information-theoretic security: the foundation of everything we build, combined with computational methods for efficiency.
  • Fully homomorphic encryption: computation directly on encrypted data.
  • Quantum position verification: location verification via quantum mechanics (with Tartu).
// Sovereignty and Export

Sovereign, European cryptography.

QuBalt develops and delivers from Latvia and Germany, so the technology and its IP stay under European control. The security is sovereign by construction: information-theoretic authentication depends on no foreign-standardised algorithm and no external key infrastructure, so its guarantee is not bound to another nation's cryptographic policy or standards roadmap. We support the export licensing that aerospace and defence programmes require, and provide our export classification on request.

// Founders Heritage

Four companies built, three exits.

QuBalt's three founders bring a combined track record across four international companies in Latvia, Germany, and the USA, built and scaled, three of them successfully exited and the fourth being QuBalt itself, with technology that protected over five billion devices.

Key Facts

Previous companies

// Get in Touch

Discuss your mission requirements

Whether you are protecting a satellite mission, a fielded critical-infrastructure asset, or secure hardware, our team will help you match the right solution to your systems, threat model, and compliance requirements. Explore our solutions to see how each applies, or contact our team to discuss yours.