Mattermost

Mattermost is a sovereign collaboration and AI automation platform designed for secure, mission-critical team communication and workflow

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#Team Messaging

Mattermost

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Overview

Mattermost delivers secure messaging, file sharing, workflow automation, audio/screenshare, and project management with full data control for national security and critical infrastructure teams. It supports on-premises, private cloud, and hybrid deployments with advanced security and compliance features.

Last updated: Jun 29, 2026

Key Features

Secure Messaging & Channels

Persistent, encrypted team communication with classification banners, data spillage prevention, and full audit trails.

Workflow & Playbook Automation

Codify operational procedures into repeatable, automated workflows that execute consistently under pressure.

Audio & Screenshare

Sovereign real-time calls with transcription and AI-powered summarization without external dependencies.

Project & Task Management

Kanban boards and cross-functional coordination for mission planning, sprint execution, and compliance tracking.

Human-Machine Teaming

Sovereign AI agents integrated directly into operational channels to enrich, triage, and brief teams.

Integration & AI Platform

Open API, webhooks, plugin architecture, and sovereign LLM connectivity to extend Mattermost into existing toolchains and AI infrastructure.

Advanced Information Controls

Attribute-Based Access Controls, classification banners, burn-on-read, and data spillage mitigation to enforce need-to-know policies.

Microsoft Teams Interoperability

Embed Mattermost inside Teams, Outlook, and Microsoft 365 for integrated sovereign operations with global infrastructure.

Pros

Supports deployment on-premises, private cloud, sovereign cloud, and air-gapped environments for maximum data control.
Advanced security and compliance features tailored for national security and critical infrastructure use cases.
Integration with Microsoft Teams and Microsoft 365 to extend existing enterprise investments.
AI-powered workflow automation and sovereign AI agents to accelerate mission-critical operations.
Flexible deployment options including hybrid and multi-region setups.

Cons

Pricing details require contacting sales for enterprise plans, limiting upfront transparency.
The platform is complex and may require specialized knowledge for setup and management.
Free version has limited use and features compared to enterprise offerings.
Focused primarily on mission-critical and government use cases, which may be overkill for general business teams.
Some advanced features like horizontal scaling for group calls are available only in higher-tier plans.

Pricing

Plan	Price	Highlights
Free	$0	Limited-use edition of Enterprise Advanced for technical evaluation Channel-based messaging 1:1 audio calls and screen sharing Basic search up to 3 million posts Custom branding and themes Guest accounts in one channel (single-channel guests)
Entry Professional	Contact Sales	Channel-based collaboration with messaging, file sharing, and previews Threaded discussions Advanced search and integrations Multi-window desktop and compact view Multifactor authentication and Single Sign-On Custom user groups and system-wide notifications
Enterprise Advanced	Contact Sales	All Entry Professional features High-scale group calling and screen sharing Advanced access controls and compliance auditing Interactive AI bot support and multi-LLM integration Operational and DevOps integrations 24×7 support with Premier Support option

Pricing is collected from the official Mattermost website and may change. Always confirm with the vendor.

Frequently Asked Questions

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Community reviews (0)

Most recent

No reviews yet. Be the first to share your experience.

Ratings & reviews

No reviews yet. Be the first to share your experience.

Share your experience

Help others decide, your insights matter

Community reviews (0)

Most recent

No reviews yet. Be the first to share your experience.

Key Features

Secure Messaging & Channels

Persistent, encrypted team communication with classification banners, data spillage prevention, and full audit trails.

Workflow & Playbook Automation

Codify operational procedures into repeatable, automated workflows that execute consistently under pressure.

Audio & Screenshare

Sovereign real-time calls with transcription and AI-powered summarization without external dependencies.

Project & Task Management

Kanban boards and cross-functional coordination for mission planning, sprint execution, and compliance tracking.

Human-Machine Teaming

Sovereign AI agents integrated directly into operational channels to enrich, triage, and brief teams.

Integration & AI Platform

Open API, webhooks, plugin architecture, and sovereign LLM connectivity to extend Mattermost into existing toolchains and AI infrastructure.

Advanced Information Controls

Attribute-Based Access Controls, classification banners, burn-on-read, and data spillage mitigation to enforce need-to-know policies.

Microsoft Teams Interoperability

Embed Mattermost inside Teams, Outlook, and Microsoft 365 for integrated sovereign operations with global infrastructure.

Pros

Supports deployment on-premises, private cloud, sovereign cloud, and air-gapped environments for maximum data control.
Advanced security and compliance features tailored for national security and critical infrastructure use cases.
Integration with Microsoft Teams and Microsoft 365 to extend existing enterprise investments.
AI-powered workflow automation and sovereign AI agents to accelerate mission-critical operations.
Flexible deployment options including hybrid and multi-region setups.

Cons

Pricing details require contacting sales for enterprise plans, limiting upfront transparency.
The platform is complex and may require specialized knowledge for setup and management.
Free version has limited use and features compared to enterprise offerings.
Focused primarily on mission-critical and government use cases, which may be overkill for general business teams.
Some advanced features like horizontal scaling for group calls are available only in higher-tier plans.

Pricing

Plan	Price	Highlights
Free	$0	Limited-use edition of Enterprise Advanced for technical evaluation Channel-based messaging 1:1 audio calls and screen sharing Basic search up to 3 million posts Custom branding and themes Guest accounts in one channel (single-channel guests)
Entry Professional	Contact Sales	Channel-based collaboration with messaging, file sharing, and previews Threaded discussions Advanced search and integrations Multi-window desktop and compact view Multifactor authentication and Single Sign-On Custom user groups and system-wide notifications
Enterprise Advanced	Contact Sales	All Entry Professional features High-scale group calling and screen sharing Advanced access controls and compliance auditing Interactive AI bot support and multi-LLM integration Operational and DevOps integrations 24×7 support with Premier Support option

Pricing is collected from the official Mattermost website and may change. Always confirm with the vendor.

Mattermost

Overview

Key Features

Secure Messaging & Channels

Workflow & Playbook Automation

Audio & Screenshare

Project & Task Management

Human-Machine Teaming

Integration & AI Platform

Advanced Information Controls

Microsoft Teams Interoperability

Pros

Cons

Pricing

Featured Video

Frequently Asked Questions

Ratings & reviews

Ratings & reviews

Community reviews (0)

Ratings & reviews

Community reviews (0)

Key Features

Secure Messaging & Channels

Workflow & Playbook Automation

Audio & Screenshare

Project & Task Management

Human-Machine Teaming

Integration & AI Platform

Advanced Information Controls

Microsoft Teams Interoperability

Pros

Cons

Pricing

Featured Video

Frequently Asked Questions

More in Work & Office

Microsoft Teams

Zoom

Google Chat

Autoppt

Sembly

Webex

Ratings & reviews

Community reviews (0)

More in Work & Office

Microsoft Teams

Zoom

Google Chat

Autoppt

Sembly

Webex