HKN

HKN GmbH is a German cloud services provider based in Krefeld. Founded in 1996, this family-run company focuses on DSGVO-compliant, open-source cloud solutions hosted entirely in Germany. They offer managed Nextcloud and Zimbra workspaces, OpenStack-based virtual datacenters, managed Kubernetes, and colocation across seven German locations. Their security portfolio includes 365 Total Protection for Microsoft 365 and a Mail Security Cloud. HKN operates datacenters in Hamburg, Berlin, Düsseldorf, and Frankfurt am Main. All services run in ISO 27001 certified facilities. The company emphasizes full data sovereignty and open-source as the backbone of its infrastructure, stating they host most cloud services in their own Open Source Cloud which they are migrating to an open-source hardware platform.