European team communication services

A team communication service is company chat: channels per project or topic, direct messages, threads, file sharing and search across everything said so far. Most add calls, screen sharing, guest access for clients and integrations that post updates from other systems. It replaces a lot of internal email and becomes, in practice, the place where decisions are recorded.

Years of internal discussion, shared files and customer detail accumulate in one searchable archive, which is a serious thing to keep on another continent. Stackfield, Infomaniak kChat and Nextcloud Talk are European, and Nextcloud Talk can run on your own servers. A European alternative to Slack keeps that archive under GDPR, so check message export and retention settings on the way in.