Heinlein Group participated in the Open Source 2026 forum at Bitkom in Erfurt on September 17, 2026, featuring an opening panel titled Resilient with Open Source.

For over 30 years, the Heinlein Group has been offering private individuals, companies and public authorities an alternative digital infrastructure that focuses on security, data protection and independence. Under our umbrella, we combine the OSS service provider Heinlein Support, the email provider mailbox, the video conferencing solution OpenTalk and the file management platform OpenCloud. The group of companies thus offers many years of expertise in open standards, personalised consulting and innovative solutions for secure communication and the development and operation of sovereign and resilient IT infrastructures. We are convinced that the digital future requires courage, competence and attitude. With our experience, our solutions and our strong team, we are shaping the transformation. Genuine independence for a strong, self-determined future in Europe. Heinlein Support: Stands for Linux and mail expertise in the data centre. Our range of services: IT consulting and practical hands-on support, IT services for securing critical IT infrastructure, Linux training and individual hosting operations. mailbox: Offers secure e-mail and a digital workplace for companies, institutions and private individuals. Hosted in German data centres in accordance with the latest security standards. OpenTalk: Is the secure, intuitive and scalable video conferencing solution for public institutions, providers and companies. Digitally sovereign on-premises or hosted as a SaaS service in our German data centres. OpenCloud: The cloud-native solution for file management, file sharing and collaboration – designed to meet the highest enterprise demands in terms of performance, stability and scalability. Digitally sovereign on-premises or securely hosted via partners.