Mattermost

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370 reviews
  • 1 profiles
  • 6 categories
Average star rating
4.3
Serving customers since
2016
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Mattermost Reviews

Review Filters
Profile Name
Star Rating
228
111
19
7
5
Niranjana Devi D.
ND
Niranjana Devi D.
Project ManagerComputer SoftwareMid-Market (51-1000 emp.)
02/18/2026
Validated Reviewer
Verified Current User
Review source: G2 invite
Incentivized Review

Easy Direct Messaging, Quick Group Chats, and Fast File Sharing

Direct messaging is easy, and creating a group chat with users is quick and straightforward. File sharing is also fast, which makes it convenient to send documents without delays.
Abir S.
AS
Abir S.
SEO ConsultantSmall-Business (50 or fewer emp.)
02/02/2026
Validated Reviewer
Verified Current User
Review source: G2 invite
Incentivized Review

Fast, Secure Team Messaging with Full Control and DevOps-Friendly Integrations

What I like best about Mattermost is the control it gives you without sacrificing collaboration. It delivers fast, reliable team messaging while letting organizations self-host, customize, and meet strict security or compliance needs. Channels keep conversations focused, integrations plug neatly into DevOps workflows, and everything feels purpose-built for teams that value transparency, ownership, and serious work over noisy chat.
Verified User in Computer Software
UC
Verified User in Computer Software
Mid-Market (51-1000 emp.)
01/31/2026
Validated Reviewer
Review source: G2 invite
Incentivized Review

Self-Hosted Mattermost: Full Data Sovereignty with Excellent Webhook Integrations

The primary reason we chose Mattermost is the ability to self-host. working in a secure environment, we cannot have our operational chat logs stored on a public cloud servers; Mattermost gives us full data sovereignty. Beyond security, the webhook integrations are excellent. We have easily scripted our monitoring tools (like Zabbix and Grafana) to pipe alerts directly into specific "War Room" channels, which keeps our incident response strictly internal and organized.

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HQ Location:
Palo Alto, CA

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What is Mattermost?

Mattermost is the leading collaboration platform for mission-critical work. We serve national security, government, and critical infrastructure enterprises, from the U.S. Department of Defense, to global tech giants, to utilities, banks and other vital services. We accelerate out-of-band incident response, DevSecOps workflows, mission operations, and self-sovereign collaboration to bolster the focus, adaptability, and resilience of the world’s most important organizations. Our enterprise software and single-tenant SaaS platforms are built to meet the custom needs of rigorous and complex environments while offering a secure and unrivaled collaboration experience across web, desktop, and mobile with channel-based messaging, file sharing, audio calling, and screen share with integrated tooling, workflow automation, and AI assistance.

Details

Year Founded
2016
Website
mattermost.com