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Mattermost

Secure collaboration for technical teams

RANKED #4 · ENTERPRISE INTERNAL COMMUNICATIONS SOFTWARELISTERSCORE 94.0

An open source, self-hosted messaging platform offering high security and customisation for technical teams.

Pricing from	8.10 GBP per user per month
Best for	Organisations requiring on-premises data control
Website	mattermost.com

Company facts

Social profiles

LinkedIn, X, Instagram, TikTok

Facilities and features

Published pricing
API
Integrations

What stands out

The product runs in fully air-gapped environments.

“Runs self-hosted, private cloud, or fully air-gapped.”Mattermost, own website

Mattermost supports self-hosted sovereign AI models.

“Sovereign AI agents summarise, enrich alerts, and take action using the LLM provider you choose, or a self-hosted model in air-gapped environments.”Mattermost, own website

Strengths and trade-offs

Full ownership and control over data
Highly customisable open source architecture

Requires technical expertise to set up and maintain
Smaller ecosystem of native integrations

Appears in

SOFTWAREVERIFIED

How Mattermost ranks

#4 in Enterprise internal communications software

How the score is made up: Evidence on its own site 20; How complete its published information is 18; Fit to this ranking's criteria 40; Buying information on its own site 16.

“Integrate secure messaging and collaboration, workflow automation, task management, sovereign AI agents, and real-time communication purpose-built for critical infrastructure and national security.”Mattermost, own website

“200,000+ concurrent users, with high and ultra-high availability clustering”Mattermost, own website

#4 in Internal communications software with a mobile app

How the score is made up: Evidence on its own site 20; How complete its published information is 18; Fit to this ranking's criteria 40; Buying information on its own site 16.

“Integrate secure messaging and collaboration, workflow automation, task management, sovereign AI agents, and real-time communication purpose-built for critical infrastructure and national security.”Mattermost, own website

“Available on web, desktop, mobile, and embedded inside Microsoft Teams.”Mattermost, own website

Alternatives to Mattermost

Ziik The social intranet for better employee engagement	#1 in Enterprise internal communications software	98.0
Nextcloud	#2 in Enterprise internal communications software	96.0
Blink The trusted AI-powered platform for frontline teams	#3 in Enterprise internal communications software	94.0
eXo Platform AI-augmented open-source digital workplace for teams	#5 in Enterprise internal communications software	90.0
Haiilo Bring flow to your digital workplace	#6 in Enterprise internal communications software	90.0
Rocket.Chat Communications platform that puts data privacy first	#7 in Enterprise internal communications software	90.0

Questions about Mattermost

How much does Mattermost cost?

Lister lists Mattermost's pricing as: 8.10 GBP per user per month.

Who is Mattermost best for?

Mattermost is best for organisations requiring on-premises data control.

Where does Mattermost rank?

Mattermost is ranked #4 in Enterprise internal communications software (Lister Score 94.0), #4 in Internal communications software with a mobile app (Lister Score 94.0), #5 in Top 10 Team Communication Platforms (Lister Score 85.7), #7 in Top 10 Team Chat Platforms (Lister Score 81.0), #9 in Top 10 Team Communication Tools (Lister Score 76.3) and #10 in Top 10 Secure Communication Tools (Lister Score 72.0).

What are the best alternatives to Mattermost?

The closest alternatives on Lister are Ziik (#1 in Enterprise internal communications software), Nextcloud (#2 in Enterprise internal communications software) and Blink (#3 in Enterprise internal communications software).

Is this your company?

Claim Mattermost to suggest corrections to its listing (pricing, features, details) or ask about an enhanced profile. We review every claim before anything changes.