UPONU GmbH from Siegen builds a reliable foundation for the digital future of organizations. True to our brand claim "Genuinely Performant," we develop and operate sovereign cloud infrastructure and smart software solutions for secure communication.

We give small and medium-sized enterprises and critical infrastructure companies full technological control over their data back. We secure digital processes with open architectures based on the Sovereign Cloud Stack, compliant with the "Deutschland Stack," in our own certified data centers with absolute reliability, and protect daily business communication through our own products, such as the automatic crypto gateway mail:u. This guarantees seamless email encryption and centralized, legally compliant signature management.

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