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Mattermost, Inc.

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mattermost.comPalo Alto, California, United States

Mattermost is a leading sovereign collaboration and AI automation platform for national security and critical infrastructure, delivering secure, self-hosted collaboration with complete data control.

Overview

Mattermost provides a sovereign, self-hosted collaboration and AI automation platform designed for national security and critical infrastructure sectors. Trusted by governments, enterprises and allied militaries around the world, the platform runs on-premises and in private clouds, delivering secure messaging, file sharing, workflow automation, audio and screensharing, and project management — all with complete data and operational control. It enables zero-trust collaboration from tactical edge and DDIL environments to enterprise HQ, with advanced information controls including ABAC, data classification banners and interoperable, federated communications. Teams operate across web, desktop, and mobile, with interoperability for common tools and seamless integration with widely used productivity suites. Mattermost emphasizes secure, auditable, and configurable collaboration to support mission-critical workflows while preserving data privacy and compliance.

Mission statement

Empower the people the world relies on with sovereign, secure collaboration and AI-powered automation for national security and critical infrastructure.

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What we offer

Mattermost Platform

Securely collaborate and manage workflows with Mattermost's sovereign platform.

mattermost.com/platform-overview/

Mattermost Playbooks

Optimize team workflows through automated, standardized playbooks for incident response and DevSecOps.

mattermost.com/playbooks/

Mattermost Boards

Enhance project visibility and coordination through Kanban-style task management.

Mattermost Calls

Experience secure audio calls and screensharing for mission-critical collaboration.

mattermost.com/calls/

Mattermost Channels

Enhance collaboration with secure, organized, and structured messaging for teams.

mattermost.com/channels/

Mattermost Integrations

Streamline workflows and enhance team collaboration with Mattermost's seamless integrations.

mattermost.com/integrations-overview/

Mattermost Marketplace

Enhance team collaboration with a curated selection of integrations and tools from the Mattermost Marketplace.

mattermost.com/marketplace/

Market segments

Market size by segment

Growth potential (CAGR)

Secure enterprise collaboration

15 Billion USD13% CAGR

End-to-end, self-hosted messaging, file sharing, project tracking and workflow automation for organizations requiring zero-trust controls, ABAC, and private deployments.

Cross-domain real-time communications

0.8 Billion USD11% CAGR

Capabilities that enable secure, low-latency transmission of voice, video, FMV and real-time messaging across networks with differing classification levels to support mission collaboration.

Data sovereignty and regulatory compliance

27.35 Billion USD18.39% CAGR

Capabilities that enable organizations to maintain control of critical infrastructure and data locations to meet local regulatory requirements and enforce security controls.

Security orchestration, automation and response (SOAR)

2 Billion USD15% CAGR

Orchestration and automation for incident management, playbooks, case management and threat intelligence integration to reduce mean time to respond.

More information about our offering

Mattermost Platform

Mattermost Platform is a sovereign, self-hosted collaboration platform that enables secure messaging, file sharing, workflow automation, audio and screensharing, and project management across web, desktop, and mobile. It can be deployed on-premises or in private clouds, preserving data sovereignty and control. The platform supports zero-trust collaboration with granular access controls (ABAC) and data classification banners, and interoperates with common tools and productivity suites. Built as an open-source foundation, it is customizable with APIs, plugins, webhooks, and a marketplace to tailor workflows while maintaining security and compliance.

  • Protect Sensitive Information
    Ensure your data remains secure and compliant with advanced controls tailored to meet strict security standards.
  • Maintain Data Control
    Local deployment of LLMs ensures your sensitive information remains secure within your network, adhering to privacy regulations.
  • Access From Any Device
    Stay connected and collaborate on-the-go with full access to your workspace on web, desktop, and mobile platforms.
  • Maintain Complete Data Control
    Choose between on-premises or private cloud deployments to retain full oversight and security of your data.
  • Enhance Data Discovery
    AI-powered search provides contextual insights and suggestions, making it easier to retrieve relevant information directly from your workspace.
  • Effortless AI Integration
    Utilize LLM capabilities from within your workspace, allowing seamless interaction without switching platforms.
  • Enhance Workflow Efficiency
    Integrate with popular tools and services to streamline communication and workflow management in one unified platform.
  • Streamline Operational Workflows
    Integrate communication and collaboration tools to effectively manage projects and facilitate team interactions.
  • Streamline Communication
    Generate detailed summaries from meeting recordings to keep your team informed and engaged, efficiently sharing updates and decisions.
  • Customize Your Experience
    Leverage the open-source nature of Mattermost to develop tailored solutions and enhance your unique operational workflows.
  • Leverage AI for Enhanced Productivity
    Incorporate AI tools to optimize routine tasks and improve overall team productivity without compromising security.
  • Enhance AI Workflow Flexibility
    Equip your team with the best-suited LLM for each situation, boosting efficiency and effectiveness across various workflows.

Mattermost Playbooks

Mattermost Playbooks provides workflow automation to standardize incident response, DevSecOps, and other processes within Mattermost. It supports dynamic playbooks that keep stakeholders aligned in real time and automates runbooks to streamline repeatable tasks across development, security, ITSM, and compliance workflows.

  • Maintain Workflow Alignment
    With dynamic playbooks, teams can adapt to changes swiftly, ensuring that all involved are aware of their responsibilities and deadlines in real time.
  • Enhance Team Synchronization
    Real-time collaboration within Mattermost facilitates efficient communication, ensuring that all team members are on the same page during critical workflows.
  • Streamline Standardized Processes
    By automating key workflows, Mattermost Playbooks ensures consistency and reliability in task execution across development, security, and compliance roles.
  • Automate Routine Tasks
    Efficient automation of runbooks reduces manual efforts and mitigates errors, enhancing operational efficiency across various workflows.
  • Facilitate Template Creation
    Configurable templates allow teams to set up playbooks tailored to specific processes, enhancing adaptability and reducing setup time for recurring tasks.
  • Capture Learning Moments
    Playbooks incorporate retrospectives that help teams learn from past actions, enabling continuous improvement in workflows.

Mattermost Boards

Mattermost Boards provides project tracking to coordinate tasks and enable cross-functional collaboration within Mattermost, integrating planning and execution into the chat-centric platform.

  • Streamline Task Management
    Use Kanban-style boards to visualize workflows and ensure all team members are aligned on project status.
  • Enhance Team Engagement
    Enable diverse teams to work together efficiently by consolidating their efforts in one platform.
  • Improve Efficiency
    Utilize automation to manage repetitive tasks, allowing teams to focus on higher-priority activities.
  • Tailor Project Management
    Modify boards to reflect the unique workflow and requirements of various teams to optimize performance.

Mattermost Calls

Mattermost Calls enables real-time audio and screensharing within Mattermost for secure, mission-critical collaboration, with the ability to transcribe and summarize call recordings using AI platforms.

  • Transcribe And Summarize Calls
    Automatically create detailed written summaries of call recordings for easy sharing and review.
  • Conduct Live Calls
    Easily switch from text chats to secure audio calls and share your screen without leaving the platform.

Mattermost Channels

Mattermost Channels delivers secure messaging and collaboration through channel-based conversations across teams, enabling persistent, structured communication within a secure platform.

  • Ensure Data Security
    Maintain privacy and compliance with robust security features protecting all communication.
  • Streamline Teamwork
    Enable organized discussions that enhance focus and productivity within teams.
  • Enhance Team Collaboration
    Facilitate communication and project coordination across diverse teams for improved outcomes.
  • Boost Development Efficiency
    Connect your collaboration efforts with tools your team already uses to streamline workflows and reduce context switching.
  • Enhance Real-time Communication
    Facilitate quicker discussions and presentations that require visual aids, all within the same platform.
  • Improve Communication Clarity
    Leverage formatting capabilities for clearer messaging and better context in conversations.

Mattermost Integrations

Mattermost Integrations provides deep tool integrations with the most important tools in your stack, open APIs, plugins, and webhooks to extend functionality and automate workflows.

  • Enhance Workflow Efficiency
    Integrate key tools like GitLab, Jira, and ServiceNow to eliminate context switching, streamline processes, and boost productivity.
  • Automate and Customize
    Empower developers to build bots and workflows that cater specifically to your team's unique requirements.
  • Flexible Functionality
    Adapt Mattermost to meet your specific operational demands through a robust ecosystem of plugins.
  • Seamless Transition
    Leverage existing knowledge and infrastructure to transition smoothly to Mattermost without disrupting work patterns.
  • Tailored Solutions
    Build custom applications that fulfill unique operational needs, ensuring a personalized collaboration experience.
  • Enhance Communication
    Improve team responsiveness and operational agility through real-time updates and notifications.

Mattermost Marketplace

Mattermost Marketplace catalogs apps, plugins, and connectors that extend Mattermost capabilities with pre-built integrations and open APIs for rapid deployment and customization.

  • Access Curated Tools.
    Browse and deploy a wide variety of third-party integrations designed to enhance your Mattermost experience.
  • Build Custom Solutions.
    Utilize Mattermost's robust APIs to create tailored applications and workflows that meet your organization's unique needs.
  • Engage with Community.
    Leverage a wealth of community resources, documentation, and contributions to enhance your use of Mattermost.

References

Methodology and sourcing behind the market figures shown above.

Secure enterprise collaboration

Estimation based on multiple enterprise-collaboration market reports (2025 sizing ~USD 49–70B and CAGRs ~11–16%). Secure, self‑hosted/zero‑trust deployments form a subset of the overall market driven by on‑premise and data‑sovereignty demand (on‑premise share ~45–63%). Assuming secure/private deployments represent roughly 20–30% of the enterprise collaboration market, the secure enterprise collaboration segment is estimated at about USD 12–18B (midpoint USD 15B). Growth potential is set slightly above the general market average because of rising regulatory, zero‑trust and sovereignty drivers; hence an estimated CAGR ~13%.

Cross-domain real-time communications

Estimate derived by triangulating published market sizes for adjacent/overlapping markets: cross-domain solutions (CDS), web real-time communications (WebRTC), and tactical communications. Fortune Business Insights reports the CDS market at USD 2.7B (2025); WebRTC and tactical-communications markets are materially larger, indicating the niche sits at the intersection of CDS (specialized secure data-transfer) and real-time comms. Assuming cross-domain real-time (secure, low-latency voice/video/FM V/messaging across classification levels) is a specialist subset of CDS with premium real-time requirements, a conservative share (~30% of CDS) yields ~USD 0.8B in 2025. Growth potential aligned with CDS/WebRTC trends and defense modernization drivers, so CAGR taken near published CDS/WebRTC forecasts (~11%).

Data sovereignty and regulatory compliance

Primary estimate based on SNSInsider’s Data Sovereignty & Localization market sizing (broad scope including software, hardware, services) which values the market at USD 27.35B in 2025 and projects an 18.39% CAGR. GrowthMarketReports reports a narrower Data Sovereignty Management market at USD 2.19B (2024) with a 15.2% CAGR, indicating smaller software/services-only scopes. LinkedIn/TheBusinessResearchCompany coverage of the Data Sovereignty Cloud market (projected >$58B by 2030, ~19% CAGR) supports a higher-growth trajectory for cloud and sovereign-cloud segments. Combined, these sources justify using SNSInsider’s comprehensive 2025 valuation and an ~18.4% CAGR as the market and growth estimate for the broader “data sovereignty and regulatory compliance” segment.

Security orchestration, automation and response (SOAR)

Multiple industry reports in the provided search results estimate the SOAR market between USD 1.5B and USD 2.75B for 2023–2024, with most projecting double‑digit growth (~15% CAGR) through the early 2030s. I selected a midpoint current market-size estimate (~USD 2.0B) and a consensus growth potential of ~15% CAGR based on GMI Insights, KBV Research, SNS Insider and MarketResearchFuture projections.

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