Accelerate Mission-Critical Work in
Teams and Enterprises

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Professional

Channel-centric for team collaboration

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Includes:

Channel-based collaboration
Multi-team collaboration
Access controls + automation
Agentic platform
Integrations platform
Support

Enterprise

For secure collaborative workflows

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Everything in Professional, Plus:

Real-time communications
Federated communications
Critical infrastructure hardening
Workflow automation
Compliance + administration
Scale + high availability
Work management
Enterprise mobility

Enterprise Advanced

For multi-domain secure operations

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Everything in Enterprise, Plus:

Security-optimized mobility
Air-gapped + DDIL environments
Ultra-high resiliency
Enterprise mobility
Zero Trust security
Classified and sensitive information control
Mission partner environments

Features across all our offerings:

Channel-based collaboration

Messaging, file sharing, and link and file previews across device platforms
1:1 Audio calls and screen sharing
Threaded discussions
Core search up to 3 million posts
Custom branding, themes, and emojis

Multi-team collaboration

Group calling and screen share
Guest accounts
Customer user groups
System-wide notifications

Access controls + automation

Multifactor authentication
Single sign-on
AD/LDAP user sync
Advanced attribute-based access controls (ABAC)

Agentic platform

Interactive AI bot support
Bring-your-own & multi-LLM integration
Agent control plane
Agents Token Accounting

Integrations platform

Flexible plugin platform
Operational and DevOps integrations
REST API, MCP Server, Webhooks, and Slash Commands

Support

Community Support
Professional Support

Compare Mattermost Packages

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Channel-based collaboration

1-1, group messaging, public and private channels, file sharing, link and media previews across web, PC, Mac, iOS and Android devices, with 1-1 audio calls and screen share, threaded discussions, search, custom branding themes and emojis, and availability in 20 languages.

Messaging, File Sharing, and Link and File Previews across Device Platforms

Channels-based messaging including 1-1, group messaging, public and private channels, file sharing, link and media previews across web, PC, Mac, iOS, and Android devices.

1:1 Audio Calls and Screen Sharing

Call another user to start a 1-1 audio discussion in web, desktop, and mobile experiences with optional screen sharing.

Threaded Discussions

Organize discussions within channels using threaded discussions and the thread inbox to follow-up on threaded discussions in addition to channels.

Core Search up to 3 Million Posts

Search over messages and files in Mattermost. Core search happens in a relational database and is intended for deployments under 3 million posts and file entries. Beyond that scale, Enterprise Search is recommended.

Custom Branding, Themes, and Emojis

Match your organizations look, feel and brand by customizing the site name, description, login brand image and text, as well as theme colors.

Hashtags

Hashtags in channel-based messaging enhance discoverability and organization by allowing users to tag key topics, themes, or initiatives directly within conversations. This makes it easier to filter, search, and follow relevant discussions across teams, improving collaboration and knowledge sharing.

Channel Categorization

Channel categorization helps teams stay organized by grouping related channels into custom sections, making it easier to navigate and prioritize conversations. This improves focus and efficiency, especially in high-volume workspaces where users need to quickly access the most relevant discussions.

Available in 20 Languages

Multiple languages including English (Australian, US), Bulgarian, Chinese (Simplified and Traditional), Dutch, French, German, Hungarian, Italian, Japanese, Korean, Persian, Polish, Portuguese (Brazil), Romanian, Russian, Spanish, Swedish, Turkish, Ukrainian, and Vietnamese.

Multi-Window Desktop

Enables users to open multiple chat windows simultaneously, enhancing multitasking and productivity. This capability ensures that priority conversations remain visible at all times, enabling users to monitor live updates and engage in multiple discussions without losing track

Compact View

Increase the efficiency of technical teams with compact display views of discussions and tooling notifications integrated in Mattermost channels.

Markdown Compatibility

Easily move information across Mattermost discussions and technical tooling outputs with built-in support for the Markdown technical formatting standard. Text formatting, code snippets, media embedding, tables, status indicators, and emojis render consistently across the Mattermost user experience and Markdown-compatible tools.

Message Priority

Elevate the focus of organizations with the ability for end users to specify the priority of messages as Standard (Default), Important, and Urgent.

Persistent Notifications

Mattermost's Persistent Notifications feature ensures that urgent messages remain visible until acknowledged or replied to, enhancing the visibility of critical communications. Users can configure the frequency and maximum number of repeated notifications, ensuring that important alerts are not missed

Custom Profile Attributes

Custom Profile Attributes gives organizations the ability to define and manage user-specific metadata to support more precise access control, smarter automation, and deeper personalization.

Multi-team collaboration

Work across teams and organizations with real-time calling and screen share, guest accounts to integrate internal and external stakeholders, custom user groups to organize teams within teams, and system-wide notifications to share organization-wide messages.

Group Calling and Screen Share

Streamline real-time collaboration with complete privacy by enabling group audio calling and screen share up to approximately 50 concurrent users in any group call per self-hosted server. High-scale options for private, self-hosted group calling and screen share are available in Mattermost Enterprise with the setup of its horizontal scaling option.

Guest Accounts

Bring external users and users who need to have restricted access into your Mattermost instance. Guests in exactly one channel are treated as single-channel guests and are free up to a 1:1 ratio with licensed seats. Guests in multiple channels count as paid active users.

Custom User Groups

Simplify communication by creating custom user groups to mention and notify up to 256 users who work together on projects or in functions or have other ties. Examples include creating custom groups for cross-functional teams, for job types, or organization membership within an enterprise.

System-Wide Notifications

Notify users across teams of upcoming system maintenance, service changes, and other announcements using system-wide announcement banners.

Access controls + automation

Centralize and automate user identity and permissions with a range of single-sign-on (SSO), user synchronization and advanced access control. capabilities

Multifactor Authentication

Mattermost supports multifactor authentication (MFA), adding an extra layer of security beyond traditional username and password. This feature ensures that unauthorized users are denied access even if passwords are compromised, reducing the risk of account breaches

Single Sign-On

Mattermost's Single Sign-On (SSO) feature allows users to log into multiple applications with a single set of credentials, streamlining the login process and enhancing security. This integration supports various SSO protocols, including SAML, OpenID Connect, and OAuth 2.0, ensuring seamless and secure access across platforms

AD/LDAP User Sync

AD/LDAP User Sync feature ensures seamless synchronization of user attributes and group memberships from Active Directory or LDAP directories. This integration automates user management, maintaining up-to-date user information and access controls across the platform

Advanced Access Controls

Empower admins to manage and moderate multi-team deployments with the ability to configure channels to be read-only, to restrict channel mentions and emoji reactions, and to lock down channels so that users can only be added or removed by selected administrators.

Magic Link for Guests

Users can invite guests to specific channels via email with magic links, granting them secure, one-click access to Mattermost on mobile, web, or desktop — without creating usernames or passwords.

ABAC for Team Admins

With ABAC for Teams, a Team Admin can define policies for team management in advance and as the user's profile changes over time, they are automatically added or removed from teams.

ABAC for File Permissions

ABAC File Permissions allow Admins to build fine-grained rules to whether a user can upload or download files based on their user and channel attributes.

Integrations platform

Mattermost’s Integrations Platform offers operational extensibility with pre-packaged, source-available connectors, automations, and templates for rapid and effective systems integration. This platform supports seamless integration with modern toolchains and legacy systems, enhancing workflow automation and collaboration

Integrations Platform

Mattermost's Integrations Platform offers operational extensibility with pre-packaged, source-available connectors, automations, and templates for rapid and effective systems integration. This platform supports seamless integration with modern toolchains and legacy systems, enhancing workflow automation and collaboration

Operational and DevOps Integrations

Mattermost's Integrations Platform supports rapid and effective systems integration with pre-packaged connectors, automations, and templates, ensuring increased productivity with common developer tools, including Jira, GitHub, GitLab, Zoom, and more.

CyberSecurity toolchain Integrations

Mattermost integrates seamlessly with Microsoft 365 and other Security Suites, enhancing real-time, out-of-band AI-enhanced security collaboration. This integration ensures critical decisions are made securely without disruption or adversary surveillance. Key integrations include Microsoft Sentinel, Microsoft Defender, EntraID, and Intune, providing a comprehensive security solution

Scale + high availability

Achieve scale and resilience through cluster-based architecture, horizontal scaling, Kubernetes orchestration, and advanced performance monitoring and logging.

High Availability Cluster-Based Deployment

Enable business continuity through component failures using cluster-based deployment with multiple application servers, multiple database servers, and multiple front-end proxies and/or load balancers.

Horizontal Scalability Architecture

Scale to tens of thousands of users with horizontal scale-out architectures offering a range of deployment options from on-prem data centers to cloud-based hyperscalers including AWS and Azure.

Enterprise Search (3M+ Posts)

Enable enterprise-scale search after exceeding 3 million posts in the Mattermost database by deploying Elasticsearch with dedicated indexing and usage resourcing via cluster support.

Performance Monitoring

Track system health in large deployments, including deployments on high availability clusters, using advanced performance monitoring integrated with Grafana and Prometheus.

Advanced Logging

Advanced logging provides comprehensive tracking of all system activities for auditing, optimizing, and troubleshooting high-scale, mission-critical deployments to a full range of destinations.

High Availability, Horizontally Scalable Calls and Screen Share

Enable high-scale, high availability deployment of audio calling and screen share through dedicated servers managed on an integrated Kubernetes platform.

Supported Kubernetes Deployment

Simplify and automate IT administration through Mattermost's supported options for deploying to Kubernetes clusters running either on-prem in data centers or in managed services such as Amazon EKS, Azure Kubernetes Service, Google Kubernetes Engine, and DigitalOcean Kubernetes, among others.

Scale to 50,000 Concurrent Users

Mattermost Enterprise is designed to scale efficiently, supporting up to 50,000 concurrent users and beyond. Mattermost ensures high availability and robust performance, meeting the demands of large-scale deployments.

Agentic platform

By combining AI-driven workflows, real-time collaboration, and advanced security controls, Mattermost accelerates decision-making while maintaining complete data sovereignty. Integrate your preferred LLM — including local models — in direct and group messaging, public and private channels, and more to speed execution and unlock innovation.

Interactive AI Bot Support

Interactive AI Bot Support in Mattermost enhances collaboration by integrating AI-driven bots that assist with workflows, provide real-time updates, and automate routine tasks. These bots can interact with users and each other, leveraging multiple models and configurations to streamline operations and improve efficiency

Bring-Your-Own & Multi-LLM Integration

Mattermost's Flexible Bring-Your-Own-LLM Integration allows organizations to integrate their privately hosted language models into the Mattermost platform. This feature supports multiple AI/LLM service backends and ensures unified management, observability, and reliability of both private and commercial LLMs, providing a consistent interface and enhanced security for mission-critical operations

Sovereign AI

Mattermost supports Sovereign AI, enabling secure, mission-critical operations with full data sovereignty. This feature allows deployment in air-gapped, private, or sovereign cloud environments, ensuring that sensitive data remains under complete control while leveraging AI to streamline workflows, communication, and incident response

Contextual Summarization and Composition

Contextual Summarization and Composition in Mattermost leverages AI to provide concise summaries and generate relevant content based on the context of discussions. This feature enhances productivity by allowing users to quickly grasp key points and compose responses without reviewing the raw input, ensuring efficient and informed communication

Real-Time Channel Briefing

By integrating live transcription, call recordings, chat logs, and automated summaries, Real-time Channel Briefing ensures clarity and alignment during high-stakes situations and for post-incident analysis and compliance.

Universal Connector with Model Context Protocol (MCP)

Model Context Protocol (MCP) empowers AI to securely search across enterprise systems and take action in real time, without leaving Mattermost. AI models can access external tools, knowledge, and workflows enabling faster, smarter decision-making.

Agents Enhanced Search

Mattermost's Agent-enhanced Search uses semantic understanding to deliver context-aware answers across your workspace while respecting access controls. It not only finds the right information — even when phrased differently — but summarizes it with references to the original source, so users can trust and verify results.

Enterprise LLM Management

Enterprise LLM Management in Mattermost empowers organizations to efficiently manage and deploy large language models, enabling granular billing and usage tracking. Assign LLM account authorizations at the user, group, or team level, and track LLM token usage at the user level for optimal performance and accountability.

Sovereign Agentic Web Search

Add the full power of real-time web search into your secure Mattermost environment with your sovereign LLM.

Channel-Context Summarization

Instant, AI-generated summaries of unreads and custom date ranges (up to 14 days) directly in the channel header. The LLM provides precise, sourced answers, formatted action items, key highlights, and direct source links to keep projects moving.

Agents Token Accounting

Admins can track detailed usage metrics — including unique users and token counts — by integrating with existing Grafana logging structures.

Multiplayer Tool Calling

Users can invoke agents within channels or group messages delegating their own permissions to it.

Tool Policy Editor

Admins have granular control over tool execution, allowing them to configure which tools require approval based on the context (e.g., DM versus channel) or to disable specific tools entirely.

Agent Creation

End users can create, update, delete, and share agents using a configuration UI, provided they have the appropriate permissions. Within this UI, creators can set custom instructions, enable specific MCP tools, configure channel and user access, and assign other users as agent admins to share tools and practices across their team.

Critical infrastructure hardening

Mattermost’s Critical Infrastructure Hardening ensures your collaboration environment meets the highest security standards with FIPS 140-3 validated cryptography and STIG-hardened images approved by the U.S. Department of Defense. These features provide robust protection for sensitive and classified data, helping organizations maintain compliance and operational integrity in even the most demanding environments.

FIPS 140-3 Compliant

Mattermost is available in a FIPS-validated image for FedRAMP compliance, satisfying the US government's NIST 800-53 standards. This ensures that cryptographic modules used by agencies meet specific security requirements for processing sensitive, classified, or regulated data

STIG-Hardened Image for DoD Information Assurance Standards

Mattermost offers a STIG-hardened DISA-approved image, ensuring compliance with the Department of Defense's Security Technical Implementation Guides (STIGs). This secure configuration standard is critical for maintaining the integrity and security of DoD Information Assurance (IA) and IA-enabled devices and systems, providing a robust solution for processing classified and sensitive information

Workflow automation

Streamline and automate workflows to reduce errors and delays while increasing efficiency and innovation using collaborative playbooks to speed structured team processes, from incident response and software release cycle management to accelerating operational logistics, as well as workflow dashboards to assess and refine process outcomes and operations.

Collaborative Playbooks

Collaborative playbooks provide structure, monitoring, and automation for repeatable, team-based processes integrated with the Mattermost platform. They enable seamless coordination across departments, ensuring efficient incident response, software release management, and logistical operations

Workflow Dashboards

Workflow dashboards provide a centralized view of all ongoing playbooks, enabling teams to track progress, and manage workflows efficiently. With real-time data updates and historical summaries, these dashboards enhance productivity by automating repetitive tasks and empowering teams to focus on strategic initiatives

Mobile Playbooks

Mobile playbooks bring the power of Mattermost Playbooks to your mobile device, enabling field workers, airmen, and government personnel to collaborate and execute mission-critical workflows on the go. This feature allows users to interact with playbooks, view checklists, and mark items as completed, ensuring productivity and efficiency no matter where they are.

Conditional Workflows

Conditional workflows increase compliance by consolidating the user experience for complex and evolving processes into one place. They enable users to execute and follow a single general playbook per procedure, ensuring a comprehensive audit log of all user actions in a single playbook run

Enhanced Run Reports

Enhanced run reports allow you to analyze and summarize playbook activities, define custom reports, and export those reports in PDF format. This feature provides comprehensive insights into workflow performance, enabling better decision-making and streamlined operations

Channel Checklists

Instantly create a simple checklist, then deploy into a complete organizational playbook in two clicks.

AI-Assisted Summaries and Retrospectives

AI-assisted summaries and retrospectives reduce time and increase the accuracy of in-progress playbook status updates. Mattermost Agents understands the context of the playbook, the user's roles and expertise, and the progress the team has made in the playbook channel.

Compliance + administration

Meet enterprise and critical infrastructure compliance requirements with advanced identity and access control synchronization, delegated administration roles, granular data retention policies, eDiscovery, legal hold, and information export capabilities—alongside enforced acceptance of custom terms of service.

Granular Role-Based Access Controls

User roles (e.g., Admin, Channel Admin, User) are applied to all users in the system and determine access to system functions. These roles can be synchronized from AD/LDAP and updated automatically, ensuring that access permissions are always current and aligned with organizational policies

AD/LDAP Group, Channel, and Team Sync

Automate management of users, groups, access controls, and channel and team membership through synchronizing with Entra ID/AD/LDAP Groups.

Delegated Granular Administration

In large deployments where administrative tasks need to be separated and delegated, Mattermost supports the creation and customization of system administrator roles with specific granular permissions in order to offer specialized administration delegated from senior administrators.

Data Retention Policy

Meet data retention compliance requirements. By default Mattermost uses a "soft delete" system where messages and files deleted based on user actions are removed from the user interface, but persist in the Mattermost database. By activating Mattermost's data retention policy capability, rules can be set to permanently delete all messages and files in a Mattermost system, or in specific teams or channels, that are beyond a specific age (e.g., 30 days, 90 days, or other options). This feature should be used carefully; once data is removed using data retention policies, the action is irreversible.

Legal Hold

Comply with legal hold and litigation hold requests to preserve information in anticipation of legal action. The legal hold capability can be combined with eDiscovery integration and data retention policies to customize the data retained and deleted to meet compliance requirements.

Compliance Export and eDiscovery Automation

Fulfill eDiscovery and compliance requirements with manual and automated export of message history to Actiance, Global Relay, and custom compliance formats.

Channel Export

Archive, backup, or submit the contents of a channel into other systems to fulfill reporting and auditability requirements as needed.

Custom End User Terms of Service

Increase clarity on legal expectations for internal employees and guests with the ability to set custom Terms of Service ("ToS") agreements and re-acceptable periods.

Real-time communications

Empower mission-critical teams with secure, seamless collaboration across voice, video, and messaging. With features like live-text transcription, AI-generated call summaries, and integrations with Pexip, Zoom, and Microsoft Teams, Mattermost ensures every conversation is captured, searchable, and actionable

Calls with Live-Text Transcription & AI Summaries

Enhance mission-critical communication with Calls featuring Live-Text Transcription and AI Summaries in Mattermost. This capability captures every spoken word in real time and automatically generates concise, AI-powered summaries—ensuring your teams stay aligned, informed, and ready to act, even in fast-paced or high-pressure environments.

Video Integrations

Elevate secure collaboration with Mattermost Video Integrations, including Pexip, Zoom, and Microsoft Teams. Whether self-hosted for maximum control or integrated with your existing video platforms, Mattermost enables seamless video calls, screen sharing, and chat—right within your channels—ensuring mission-critical communication stays secure, flexible, and fully under your command.

Federated communications

Support cross-organizational workflows through shared channels across Mattermost servers and integrated connectivity with Microsoft Teams for streamlined information flow.

Microsoft Teams Messaging Integration

Increase focus and isolate environments across your organization by connecting users across Microsoft Teams and Mattermost. Microsoft Teams serves as a centralized, organization-wide standard for collaboration, while Mattermost supplements with a dedicated environment for developers, security professionals, and operators with integrated direct messaging bridging the two.

Shared Channels

Enables real-time collaboration between users on different Mattermost servers, allowing organizations to securely connect and synchronize messages, emoji reactions, and file sharing. This feature ensures that communication remains uninterrupted and synchronized, even across separate networks.

Work management

Plan and manage projects, people and events with integrated Kanban boards, Calendars, Tasks, hierarchical and other relationships between any users and data in Mattermost.

Boards: Kanban-Style Project Management

Mattermost Boards empower teams to manage projects and mission-critical workflows with visual clarity and precision. With Kanban-style task tracking built into the secure Mattermost platform, teams can plan, prioritize, and execute work efficiently—whether in the office, in the field, or at the tactical edge.

Enterprise mobility

Speed real-world workflows with enterprise-grade mobility and security through EMM, MDM, and AppConfig integration, including ID-only push notifications and data protection measures that restrict transfer to underlying iOS and Android platforms.

Enterprise Mobility Management (AppConfig) Support

Enhance mobile security by deploying with Enterprise Mobility Management (EMM) to secure mobile endpoints with management application configuration, and Mattermost AppConfig compatibility.

Private Mobility with ID-Only Push Notifications

ID-only push notifications protects against breaches in iOS and Android notification infrastructure by replacing notification text with an opaque message ID. The mobile app retrieves the full message directly from your Mattermost server over an encrypted connection, so Apple and Google never see your content.

InTune MAM for iOS

Give teams a stronger layer of protection for mobile collaboration—without sacrificing usability. With Intune MAM, organizations can secure Mattermost app data with policy-based controls, prevent data leakage between personal and work apps, and enforce compliance without requiring full device enrollment.

Zero trust security

Enforce stringent Zero Trust security policies through granular, user- and resource-specific controls. These features enable dynamic enforcement of access policies across all Mattermost data—channels, files and messages —based on customer-defined attributes such as clearance level, program affiliation, device type, and location, synchronized from Identity, Credential and Access Management (ICAM) platforms or a User Authoritative Source, and aligning with standards like the U.S. DOD CIO’s Zero Trust policy.

Dynamic Attribute-Based Access Controls

Dynamic and granular attribute-based access controls are the foundation of zero trust security. They allow organizations to define custom attributes for users and resources, synchronizing them from various computing systems and data sources

Zero Trust Channel Access

Zero Trust channel access control enables administrators to configure channels with policy enforcement using common expression language (CEL) or a simple GUI. This ensures that only users with the required credentials, program access, clearances, and device, network, or environmental data can enter protected channels

Environmental Attribute-Based Controls

Organizations can synchronize environmental attributes produced by third-party Network, Endpoint security, Identity, Credential and Access Management, or other Security Management tools to enforce complex and dynamic zero trust policies. These policies can incorporate attributes such as device or asset and network state, Identity and Access Management status, network segmentation, presence and state of endpoint security and response, and anti-virus software on the endpoint, or any other relevant characteristic.

User Authoritative Source Interface

For government organizations using a secure User Authoritative Source (UAS) system, personnel data regarding authorizations and clearances is typically not held with basic user profile information but must be queried as needed. The User Authoritative Source Interface enables government organizations to securely interface and query the UAS for individual user clearances on demand. These clearances are then evaluated for zero trust policy enforcement.

Classified + sensitive information control

Define program- and subject-specific information labelling for channels, Mitigate data spillage incidents, Set visibility time limits on messages to minimize risks to sensitive and classified data. Enable security safeguards such as FIPS 140-3 validation, STIG-hardened deployments, and mobile biometric access to ensure compliance with federal standards while maintaining secure communication across devices and domains

Classification Markings: Channel Banners

These banners ensure the classification or restrictions of a channel are clearly visible to users at all times. We include preset schemes from ISOO, DoD/DoW, TLP, and allow customization according to local rules and policies.

Data Spillage Handling

Data Spillage Handling enables any user to flag and report potential sensitive data. Flagged content is immediately hidden and a designated security team is notified with context about the potential exposure, including a list of users who may have seen it. After security review, the post can be restored or permanently deleted and further mitigation steps can be initiated.

Burn-on-Read Messages

Burn-on-Read Messages allow Mattermost users to set visibility time limits on messages and posts, ensuring they are removed from endpoints after a set time period. This feature minimizes risks to sensitive data, making it ideal for exchanging sensitive information such as one-time passwords or Social Security Numbers.

Anonymous ID-Based URLs

When enabled, team and channel URLs are anonymized, meaning new team and channel URLs use random identifiers. This prevents team and channel names from being identified through shared links.

Security optimised mobility

Security-Optimized Mobility features deliver advanced protection for BYOD environments without requiring MDM, including OS-level data-at-rest encryption, biometric authentication, jailbreak/root detection, and screenshot/recording prevention. These capabilities ensure secure mobile access to mission-critical workflows while maintaining full control over sensitive data, even in air-gapped or high-security environments.

Mobile Biometrics

Mattermost's mobile biometrics feature ensures that only the authorized device owner can access the Mattermost application. By leveraging hardware-level security through native biometric authentication (such as Face ID or fingerprint recognition), this feature significantly enhances data security. Administrators can require biometric authentication each time a user attempts to access the app, adding an extra layer of protection for sensitive and classified information

Mobile Data-at-Rest Encryption

Mattermost's mobile data-at-rest encryption ensures that stored information remains secure even if the device is lost or stolen. The application for Apple iOS and Android devices uses the native OS security architecture to encrypt data-at-rest on mobile devices. Data stored by the Mattermost mobile app resides within the app's private storage container, isolated by each platform's rigorous sandboxing model. Users cannot disable this protection.

Mobile Ephemeral Mode

With Mobile Ephemeral Mode, an admin can define a window for when a device is considered "disconnected" and how long data cached data persists on a disconnected device. This mitigates data leakage on deprovisioned, lost, or stolen devices.

Mobile Screenshot Prevention

Mobile Screenshot Prevention ensures that sensitive information remains secure by blocking screenshots and screen recordings on the Mattermost mobile app. This feature helps protect classified data from being inadvertently or maliciously captured and shared.

Mobile Jailbreak / Root Detection

Mobile Jailbreak / Root Detection ensures that only secure, uncompromised devices can access Mattermost by detecting and blocking jailbroken or rooted devices. This feature helps protect sensitive data by preventing access from devices that have been tampered with or are running non-standard operating systems

Secure File Viewer (Mobile)

Allow PDF documents, videos and images to be viewed but not downloaded to the user's device. This enables users to view work related materials but keeps sensitive or classified documents within the organization's control at all times.

Air-gapped + DDIL environments

Mattermost is purpose-built to operate effectively in private, air-gapped, and DDIL (Disconnected, Denied, Intermittent, and Limited-bandwidth) environments, offering a secure, self-hosted collaboration platform that supports mission-critical operations even in the absence of internet connectivity. It provides sovereign, cyber-resilient deployment options—including Kubernetes-based orchestration, private container registries, and offline installation packages—ensuring full control over data, compliance with Zero Trust principles, and seamless integration with existing infrastructure such as LDAP, PostgreSQL, and Elasticsearch.

Air-Gapped Deployment

Mattermost is engineered for secure deployment in air-gapped and government cloud environments enabling mission-critical collaboration in disconnected or classified networks.

DDIL Microsoft Teams App

The Mattermost for Microsoft Teams App enables organizations to connect their users in Mattermost and in Teams. In disconnected, degraded, intermittent, or limited (DDIL) environments, this integration ensures your teams can continue secure collaboration and workflow execution independently—maintaining operational continuity, even if Teams is inaccessible

Offline Operation and Smart Resync

Mattermost enables local collaboration during outages or in DDIL environments, then automatically syncs all messages and updates across servers once connectivity is restored—ensuring no data is lost and operations stay aligned.

Mission partner environments

Designed for multi-national, distributed, and multi-domain operations, this feature set ensures secure, real-time communication across allied forces and partner organizations, even in disconnected or classified environments.

Automatic Channel Translations

Automatic Channel Translations enhances real-time collaboration by translating conversations into each user's preferred language, reducing friction and improving clarity across multilingual teams.

Ultra-high resiliency

Ultra-High Resilience capabilities ensure uninterrupted operations in mission-critical environments by supporting up to 200,000 concurrent users through a high-availability architecture with dedicated write-through caching and zero-downtime upgrades. This enables real-time collaboration across disconnected or degraded networks, ensuring operational continuity even in air-gapped, DDIL, or mission partner environments.

Scale to 200,000 Concurrent Users

Mattermost Enterprise Advanced can scale to meet the highest performance expectations, supporting up to 200,000 concurrent users and beyond with cluster-based deployment. Mattermost ensures high availability and robust performance, meeting the demands of large-scale customers.

Dedicated Write-Through Caching

Boost performance and reliability at scale with Dedicated Write-Through Caching powered by Redis. This feature ensures lightning-fast access to critical data while maintaining full data integrity—so your teams stay connected and mission-ready, even in the most demanding environments.

Support

A full range of support options are available, including free forums and documentation to enterprise support with guaranteed SLAs, 24/7 coverage, and specialized expertise.

Community Support

Community support for all Mattermost offerings is available on peer-to-peer forums. Organizations using Mattermost Free to evaluate a future purchase of Mattermost Enterprise can contact sales to apply for early access to commercial support as part of the evaluation process.

Professional Support

Professional Support includes business hours support from 8am to 8pm United States Pacific Time (UTC-8 except for U.S. daylight savings time), with next business day response time via email and the Mattermost online ticketing system. For more information, please see this.

Enterprise Support

Enterprise Support is available 24×7 at all times on all days via email and the Mattermost online ticketing system with a 4-hour response time service-level target. For more information, go here.

Premier Support

Available as an additional purchase for Mattermost Enterprise and Enterprise Advanced customers, Mattermost Premier Support offers additional license entitlements for non-production environments, direct access to senior support team members, screen-sharing and audio calling for P1 and P2 tickets, and access to a private channel with Mattermost technical staff. For more information, read this.

U.S.-Based Premier Support

Available as an additional purchase for Mattermost Enterprise and Enterprise Advanced customers, this is Premier Support delivered by exclusively U.S. citizens. U.S. based customer information is strictly segregated. Escalation to other Mattermost staff anonymizes customer information and requires advance customer approval for exceptions.

Frequently Asked Questions

How are Mattermost Licenses sold?

Mattermost Professional and Mattermost Enterprises licenses are sold as prepaid annual subscriptions based on the number of annual seat licenses purchased, or "seats". Each seat license purchased entitles a customer to an "activated user", which is a user registered on a specific Mattermost server and not deactivated. Administrators can view user status in the System Console and activate and deactivate registered users at any time. Deactivated users have history and preferences saved.

How can U.S. government customers procure Mattermost licenses?

Please review our U.S. government offerings at government and public sector solutions to contact channel partners and resellers. You can also contact Carahsoft regarding Mattermost by phone or email with the information at carahsoft.com/mattermost.

How can governmental organizations outside the U.S. procure Mattermost licenses?

Governmental organizations outside the U.S. that need to procure licenses through resellers can contact the Mattermost sales organization at contact sales to connect with existing resellers by country and geographic region, or to onboard new approved resellers.

I’d like to buy Mattermost through a reseller–or I am a reseller–how do I get in touch?

Please contact the Mattermost sales team at contact sales to find a reseller for your geography and organization. Resellers can read about our partner programs at Mattermost partner programs.

What happens when activated users exceed the number of licensed seats?

During the period of the annual license, when the number of activated users exceeds the number of seat licenses purchased, additional seats should be purchased on a quarterly "true forward" basis. For example, if activated users exceed licensed seats in the first quarter since annual licenses were purchased, then additional seat licenses should be purchased for the remaining three quarters until renewal, with an invoice amount prorated for the annual cost of the license.

Where can I find more information on subscriptions and billing?

Please see the Mattermost subscription documentation.

Do you offer special programs for non-profit organizations, open source projects, or educational institutions?

Yes, please see the non-profit subscriptions information.

Can I use my Mattermost license on multiple servers?

Each Mattermost server requires its own license, including servers that are federated with one another.

A High Availability configuration — where multiple nodes share a single database — counts as a single server and requires one license. Non-production servers (development, staging, and UAT) each require their own license key.

Customers with Premier Support are eligible for up to four non-production license keys. Customers without Premier Support should contact their account team for assistance.

Does Mattermost have a Software-as-a-Service offering?

Yes, Enterprises can inquire about Mattermost Cloud Enterprise, as a single-tenant cloud-managed service for Mattermost Enterprise hosted by Mattermost, Inc. The system is offered on the same Kubernetes-based platform as the self-hosted edition, and managed by Mattermost, Inc.

For more information, contact the Mattermost Sales organization at contact sales.

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Accelerate Mission-Critical Work in Teams and Enterprises

Professional

Enterprise

Enterprise Advanced

Features across all our offerings:

Channel-based collaboration

Multi-team collaboration

Access controls + automation

Agentic platform

Integrations platform

Support

Compare Mattermost Packages

Frequently Asked Questions

See Our Platform in Action

Accelerate Mission-Critical Work in
Teams and Enterprises