Threema is Europe’s leading secure communication solution. We protect digital conversations and provide rigorous privacy for private individuals and organizations.
More than 8,000 organizations and over 12 million people worldwide trust Threema for secure communication.
Threema OnPrem enables organizations with the highest security requirements to operate the Threema communication platform entirely within their own infrastructure.
All Threema Work features, including the powerful administration interface that is customizable to organizational needs
Total data sovereignty
You host and control every aspect in-house, no data leaves your servers
CYBER DEFENSE AT ITS BEST
Maximum protection from cyber threats thanks to fully isolated infrastructure
Meets the strictest security and compliance requirements
Keep up with your corporate design and customize the app with your desired app name, design, and colors.
Ultimate data sovereignty, handling classified information.
Operations security, no public cloud risks.
Encrypted, isolated communication, continuous operational readiness.
Crisis-proof messaging.
Privacy comes first – we keep your conversations truly private and secure.
End-to-end encrypted messaging, calls, and file exchange
No phone number or email address required
Free of ads and tracking mechanisms
Minimal metadata, maximum confidentiality
We promise security and also prove it.
Fully open source
Independently verified through regular external audits
GDPR-compliant and hosted in ISO 27001–certified Swiss data centers
Strict data minimization
Threema combines modern, powerful, and versatile technology for all needs.
Native apps for Android, iOS, and the desktop
Comprehensive APIs and seamless integration (Active Directory, MDM, etc.)
Reliable, cross-platform communication
Developed and hosted in Switzerland
