Mattermost logo
Open SourceVC-backedSeries C
Palo Alto, USA · Founded 2015

Mattermost

Open source Slack alternative for developers

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About Mattermost

Mattermost is an open-source, self-hostable collaboration platform for developer and engineering teams. Channels, threads, calls, workflows, and integrations — without the data leaving your network. Used by US DoD, NASA, and thousands of enterprises.

Mattermost website preview

Screenshot of Mattermost (mattermost.com) — Open source Slack alternative for developers

Company facts

Category
Open Source
Funding stage
Series C
Total raised
$65M
Founded
2015
Team size
500+
HQ
Palo Alto
Country
USA
Website
mattermost.com

Founders of Mattermost

  • Ian Tien
  • Corey Hulen

Investors backing Mattermost

  • a16z
  • Redpoint Ventures
  • S28 Capital

Frequently asked questions

What does Mattermost do?

Mattermost is an open-source, self-hostable collaboration platform for developer and engineering teams. Channels, threads, calls, workflows, and integrations — without the data leaving your network. Used by US DoD, NASA, and thousands of enterprises.

Where is Mattermost based?

Mattermost is based in Palo Alto, USA.

When was Mattermost founded?

Mattermost was founded in 2015.

How much has Mattermost raised?

Mattermost has raised $65M in their Series C round.

Who founded Mattermost?

Mattermost was founded by Ian Tien, Corey Hulen.

Who has invested in Mattermost?

Mattermost is backed by a16z, Redpoint Ventures, S28 Capital.

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