Mattermost
Open source Slack alternative for developers
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.
Pitch deck breakdown
How Mattermost would pitch themselves.
Target customer
Developers — the core audience Mattermost's product is built around.
Problem they solve
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… The category has historically been served by tools that miss the modern workflow this product is built around.
Key differentiator
Mattermost differentiates on open source slack alternative for developers. Backed by a16z + Redpoint Ventures, $65M raised — the company has resources + validation to compound this thesis. Founded by Ian Tien + team.
Go-to-market strategy
Growth-stage GTM — multi-channel revenue motion (direct enterprise sales, channel partnerships, marketplace listings). Vertical specialisation + verticalised AE teams targeting enterprise + mid-market.
Mattermost website preview
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.