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Mattermost is a company developing a messaging solution across web, desktop, and native mobile devices. It offers a platform that provides organized conversations in teams and channels, voice, video, and screen sharing, 1-on-1 and group messaging, searchable message history, file, image, and link sharing, and multiple language support.
HQPalo Alto, CA, US
Employee Ratings4.4
Overall CultureA+

Latest Updates

Employees (est.) (Apr 2021)157
Cybersecurity ratingBMore

Key People/Management at Mattermost

Ian Tien

Ian Tien

CEO and Co-Founder
Corey Hulen

Corey Hulen

CTO and Co-Founder
Alison Holmlund

Alison Holmlund

Vice President, Customer Success
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Mattermost Office Locations

Mattermost has an office in Palo Alto
Palo Alto, CA, US (HQ)
530 Lytton Ave #201
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Mattermost Financials and Metrics

Summary Metrics

Founding Date


Mattermost total Funding

$70 m

Mattermost latest funding size

$50 m

Time since last funding

2 years ago

Mattermost investors

Mattermost's latest funding round in June 2019 was reported to be $50 m. In total, Mattermost has raised $70 m
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Mattermost Operating Metrics

Feb, 2019

Monthly Downloads

10 k
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Mattermost Cybersecurity Score

Cybersecurity ratingPremium dataset



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Mattermost Online and Social Media Presence

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Mattermost Company Culture

  • Overall Culture



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Mattermost News and Updates

Mattermost looks to boost DevOps collaboration with cloud platform

Mattermost Inc., provider of an open-source collaboration platform, today announced the launch of Mattermost Cloud, a new software-as-a-service collaboration system designed for DevOps teams and privacy-conscious enterprises. Using Mattermost Cloud, DevOps teams and developers will be able to orche…

Mattermost Launches New SaaS Platform to Optimize DevOps Collaboration

Designed for DevOps teams and privacy-conscious enterprises, Mattermost Cloud brings Mattermost’s industry-leading open-source, self-managed collaboration platform to the cloud Designed for DevOps teams and privacy-conscious enterprises, Mattermost Cloud brings Mattermost’s industry-leading open-sou…

Y Combinator leads $50M round into open-source Slack rival Mattermost

Team chat services such as Slack are experiencing rapid adoption in the enterprise, but some companies have been more hesitant to embrace the technology than others. Organizations with advanced data security needs, such as banks, can’t simply shift employee communications to an external platform ru…

Mattermost raises $50 million to advance its open source Slack alternative

Mattermost, a startup developing an open source alternative to Slack, HipChat, Microsoft Teams, and Google's Hangouts Chat, has raised $50 million.

Mattermost Blogs

What Matters, Episode 16: Remotely Successful with Eamon Leonard

We are excited to announce the latest episode of our podcast What Matters!  In this episode, PJ Hagerty sits down with co-founder of BoundlessHQ , Eamon Leonard, to discuss remote work and what success means in the new way of working. Episode 16: Remotely Successful with Eamon Leonard   In this epis…

Support for ESR 5.25 has ended

Upgrade to ESR 5.31 for improved security and performance, mobile app compatibility, and enhanced user experience As of April 15, 2021, Mattermost Extended Support Release (ESR) version 5.25 is no longer supported. If any of your servers are not on ESR 5.31 or later, upgrading immediately is require…

Are Native and Electron Apps Finally Obsolete? Publishing Full-Stack Web Apps in the Windows and Mac App Stores

When most people think of web apps, they think of progressive web apps (PWAs). The problem is that PWAs are essentially just locally cached web pages that generally still need to connect to a server to fully function. They aren’t complete apps in and of themselves. But what if you could package the …

5 workflow automations for Mattermost that we love at n8n

n8n is a fair-code licensed tool that helps you automate tasks, sync data between various sources, and react to events — all via a visual workflow editor. Our team has been using Mattermost for internal communication since the very beginning, and in time we have developed a ChatOps practice by integ…

Mattermost 5.31.3 Extended Support Release released

Mattermost dot release 5.31.3 ESR for Team Edition (TE) and Enterprise Edition (EE) is now available for download. If your deployment is affected by issues this dot release fixes, upgrading is recommended. Mattermost 5.31.3 version resolves the following bug: Fixed an issue where cluster handlers we…

What Matters, Episode 15: Open Source Fridays with Joram Wilander

Mattermost is and always has been dedicated to Open Source. From the beginning, our engineers have used, contributed to, built, and given back to the Open Source projects. Now we we are doing it in an organized way! In this episode, PJ sits down with Senior Engineering Lead Joram Wilander to talk ab…
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Mattermost Frequently Asked Questions

  • When was Mattermost founded?

    Mattermost was founded in 2011.

  • Who are Mattermost key executives?

    Mattermost's key executives are Ian Tien, Corey Hulen and Alison Holmlund.

  • How many employees does Mattermost have?

    Mattermost has 157 employees.

  • Who are Mattermost competitors?

    Competitors of Mattermost include Consider, Slack and Viber.

  • Where is Mattermost headquarters?

    Mattermost headquarters is located at 530 Lytton Ave #201, Palo Alto.

  • Where are Mattermost offices?

    Mattermost has an office in Palo Alto.

  • How many offices does Mattermost have?

    Mattermost has 1 office.