Messaging

3CX develops software-based unified communications systems. Bypassing rigid hardware setups, the platform provides video conferencing, voice, and live chat features that can be self-hosted or deployed in the cloud. The company operates from its global headquarters in Nicosia, Cyprus.

Built on the open Matrix network, Element provides a decentralized and federated architecture for enterprise messaging. This structure gives organizations complete control and ownership over their communications data, ensuring absolute sovereignty compared to centralized silos like Slack or Microsoft Teams.

Talkdesk develops a cloud-based contact center platform (CCaaS) for customer support operations. The platform integrates communication tools, automated routing, and AI-driven features to assist customer support agents. The company retains significant engineering operations in Lisbon, Portugal.

Based in Switzerland, this secure instant messenger allows for truly anonymous use without requiring a phone number to register. Featuring fully open-source apps and self-hosting options for businesses, Threema offers unparalleled metadata protection compared to WhatsApp or Signal.

Fully open-source and built from the ground up in Germany, Tuta offers a zero-knowledge architecture where not even the company can read your emails..

With a relentless focus on enterprise compliance and security standards, Wire offers comprehensive end-to-end encryption for voice, video, and text..