Microsoft Teams vs Mattermost

Microsoft Teams and Mattermost are both communication options. Here's how they compare on official platforms, features, and positioning — sourced from each vendor's own site, not from ratings or reviews.

Side-by-side summary

ComparingMicrosoft TeamsMattermost

CategoryCommunicationCommunication

Alternatives tracked33

PlatformsWeb, Windows, macOS, iOS, AndroidWindows, macOS, Linux, iOS, Android, Web

Best for Microsoft Teams

Segmented by Microsoft into small/medium business, enterprise, education, and individual use — organizations already invested in the Microsoft ecosystem.

Best for Mattermost

Positioned as a collaboration platform for mission-critical work — defense, government, critical infrastructure, DevSecOps, and security-operations teams needing data sovereignty.

Feature comparison

Every feature listed here comes directly from each vendor's own official site.

Microsoft Teams

Chat and channels integrating Loop, OneNote, and third-party apps
AI-powered meetings with real-time translation and insights
Teams Phone cloud calling
Copilot integration for meetings and workflows
Built-in security and encryption controls

Mattermost

Channels for secure messaging and collaboration
Playbooks for workflow automation
Calls with screenshare, transcription, and summarization
Boards for kanban task tracking
AI agents connectable to sovereign or private LLMs
Pre-built integrations for SIEM/SOAR and DevSecOps tooling

Pros and cons

Microsoft Teams

Pros

Chat and channels integrating Loop, OneNote, and third-party apps
AI-powered meetings with real-time translation and insights
Teams Phone cloud calling
Copilot integration for meetings and workflows
Built-in security and encryption controls

Cons

We don't publish a "cons" list for either product. No vendor's official site documents its own product's weaknesses, so there's no sourced basis for one — and we'd rather say that plainly than invent one.

Mattermost

Pros

Channels for secure messaging and collaboration
Playbooks for workflow automation
Calls with screenshare, transcription, and summarization
Boards for kanban task tracking
AI agents connectable to sovereign or private LLMs
Pre-built integrations for SIEM/SOAR and DevSecOps tooling

Cons

Key differences

Microsoft Teams lists Chat and channels integrating Loop, OneNote, and third-party apps, AI-powered meetings with real-time translation and insights, Teams Phone cloud calling, Copilot integration for meetings and workflows, Built-in security and encryption controls that Mattermost doesn't list.
Mattermost lists Channels for secure messaging and collaboration, Playbooks for workflow automation, Calls with screenshare, transcription, and summarization, Boards for kanban task tracking, AI agents connectable to sovereign or private LLMs, Pre-built integrations for SIEM/SOAR and DevSecOps tooling that Microsoft Teams doesn't list.
Mattermost supports Linux, which Microsoft Teams doesn't list.

Choose Microsoft Teams if…

Choose Microsoft Teams if this fits: Segmented by Microsoft into small/medium business, enterprise, education, and individual use — organizations already invested in the Microsoft ecosystem.

Choose Mattermost if…

Choose Mattermost if this fits: Positioned as a collaboration platform for mission-critical work — defense, government, critical infrastructure, DevSecOps, and security-operations teams needing data sovereignty.

Facts on this page are sourced from each vendor's official site (linked below), not from ratings or reviews. Products change — verify anything that matters to your decision directly on the vendor's own site before switching. See our Disclaimer and Sources Policy.