Stackfield is a project management and collaboration platform from Germany, combining all the features teams need for effective collaboration: team chat, task and project management, whiteboards, video conferencing, collaborative document editing, and more.

Element is an open-source team communication app from the United Kingdom, built on the open Matrix protocol. Rather than routing every conversation through a single company's servers, Element connects to independent Matrix homeservers, so organizations can run their own server or rely on the public matrix.org homeserver that Element operates on behalf of the nonprofit Matrix.org Foundation. All conversations are end-to-end encrypted, and Element requires verified devices before they can send or receive encrypted messages. The apps are available for web, desktop, iOS, and Android, and existing Slack, Microsoft Teams, or IRC channels can be bridged into Matrix rooms. Element is used by companies, public administrations, and individuals who want a team communication services tool that does not depend on a single vendor's infrastructure.

meetergo is an appointment scheduling platform from Germany that has grown into a broader all-in-one business platform. Businesses share their availability through booking pages or forms so clients can book meetings directly against a calendar, with automated reminders to reduce no-shows. Alongside scheduling, meetergo bundles video calling, a customer relationship management pipeline, AI-generated meeting notes, e-signatures, and invoicing as optional modules on the same platform. It serves sales teams, HR and recruiting departments, law firms, healthcare providers, and other service businesses that want to manage bookings and client follow-up in one system. meetergo's video conferencing product can also be used on its own, independent of the scheduling features.

OpenTalk is a video conferencing software from Germany. OpenTalk is part of the German Heinlein Gruppe, which also owns the email provider mailbox.org. OpenTalk is open source under the EUPL (European Public License), which is similar to the GPL, but specifically made for the legal framework in the European Union. The tool offers break-out rooms, a voting system and the ability to moderate with multiple people. OpenTalk also offers On-Premise hosting with a Enterprise version and support.