Threema OnPrem. Self-Hosted

Self-hosted secure messaging for organizations is now within reach. Threema OnPrem. Self-Hosted gives enterprises, government agencies, and security-focused organizations complete control over their communication infrastructure, eliminating dependence on third-party servers and ensuring total data sovereignty.

Your organization retains 100% data ownership by hosting the entire system on your own servers. This independence, combined with Threema's battle-tested security architecture, creates a communication environment designed for the highest confidentiality standards. Whether you're coordinating sensitive operations, protecting classified information, or managing confidential projects, this solution delivers the control and transparency your organization demands.

Collaborate securely across teams, groups, and projects with end-to-end encryption protecting every conversation. Voice and video calls remain private through the same proven encryption that secures all messaging. File and document exchange happens with military-grade protection, regardless of format or size. Access your secure communication through mobile apps, desktop clients, or the web interface—consistency and security across every platform.

Additional security layers protect your most sensitive chats with optional PIN or fingerprint authentication. When confidentiality is non-negotiable, these features add critical extra protection at the user level.

Threema OnPrem. Self-Hosted transforms how mission-critical organizations communicate. Set up begins on your company server, giving your IT team complete visibility and control over deployment, updates, and data handling. Achieve the independence, security, and confidentiality your organization requires without compromise.