Mattermost vs Microsoft Teams
Side-by-side comparison of AI visibility scores, market position, and capabilities
Open-source team messaging platform for air-gapped and self-hosted enterprise deployments; trusted by defense, intelligence, and regulated industries.
About
Mattermost is an open-source, self-hostable team messaging and collaboration platform built for security-conscious enterprises, government agencies, and development teams that cannot or will not use cloud-only solutions like Slack or Microsoft Teams. Founded in 2015 and headquartered in Palo Alto, Mattermost provides a Slack-like interface with channels, threads, file sharing, and integrations — but deployed entirely within an organization's own infrastructure or private cloud.
Microsoft 365 enterprise collaboration hub with 280M monthly active users for messaging, video, and files; integrating Copilot AI competing with Slack and Zoom for enterprise communication.
About
Microsoft Teams is Microsoft's enterprise collaboration hub within Microsoft 365 — integrating workplace messaging (chat channels and direct messages), video conferencing, file storage (SharePoint and OneDrive integration), and application extensions into a single platform that has become the primary communication tool for over 280 million monthly active users globally. Launched in 2017 as a replacement for Skype for Business, Teams became one of the most significant technology adoption stories in corporate history during COVID-19, growing from 44 million daily active users in March 2020 to 270 million monthly active users by 2023.
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