Digital Sovereignty Is Possible - with
Open Source
Email and collaboration are essential digital infrastructure for governments and regulated organizations.
Many organisations have become deeply dependent on foreign cloud providers for these mission-critical functions. These dependencies introduces new risks due to changing geopolitical, trade, and regulatory landscapes.
Digital sovereignty is not about isolation or rejecting global cooperation. It is about retaining control and independence over essential systems.
Self-determination and control
You decide how systems evolve, where data is processed, and who has access, without dependency on a single foreign vendor.
Competence and know-how
You retain technical understanding of your platform, instead of outsourcing critical knowledge to closed ecosystems.
Modularity of the solution
You can replace, extend, and integrate components without breaking the system.
Data sovereignty
Your data remains under your legal and technical control, not under foreign jurisdictions or opaque cloud policies.
Legal conformity
Transparency enables verification, auditability, and alignment with national and EU regulations.
Future viability
Open systems can evolve independently of vendor strategies, licensing models, or geopolitical shifts.
220+ million mailboxes run on OX technology globally
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Trusted by the world’s largest telecom operators to deliver email as a core service
5+ years of experience delivering carrier-grade software for critical communication services
Built for Public-Sector Workflows
Public institutions and regulated organisations face elevated risk requirements that demand high levels of predictability, auditability, and resilience.
OX App Suite addresses these needs by being most commonly deployed on-premise, enabling organisations to maintain maximum control over their infrastructure, data, and operations while still offering cloud deployment where appropriate, resulting in a secure, controlled, and dependable collaboration environment.
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Open-source transparency, enabling independent security reviews, audits, and long-term verification of system behaviour
Strong identity, authentication, and access control, aligned with public-sector standards
Data protection and privacy by design, supporting IT-Grundschutz requirements and GDPR compliance
Stable, long-term roadmaps, without forced upgrades, sudden deprecations, or vendor-driven change
Extensive customisation options allow organisations to adapt the platform to their specific administrative and organisational requirements
More Solutions for the Digital Workplace
Email and calendaring are the backbone of public-sector communication. Many organisations also require additional productivity and collaboration tools, such as secure file sharing or video conferencing.
OX follows a platform strategy that integrates best-of-breed, complementary solutions, delivering flexibility, avoiding new lock-ins, and enabling real digital sovereignty instead of replacing one dependency with another.
A Sovereign Digital Workplace: openDesk
For organisations seeking a comprehensive digital workplace, openDesk delivers an integrated office and collaboration suite built specifically for public administration.
openDesk is a secure platform that combines essential tools.
openDesk is developed and offered by ZenDiS (Zentrum für Digitale Souveränität der Öffentlichen Verwaltung), a public-sector organisation established by the German Federal Government to support digital autonomy across Bund, Länder, and Kommunen.
openDesk does not require a tender where sovereign digital infrastructure is mandated, simplifying procurement and adoption for public authorities.
With openDesk, organisations gain a modular, open-source workplace built around open standards and interoperable components, enabling flexible deployment without introducing new vendor lock-in after moving away from hyperscaler ecosystems.
Require digital sovereignty and legal clarity
Operate under strict compliance and procurement rules
Need long-term vendor stability
Want modern tools without geopolitical dependency
Explore a Sovereign Alternative
