United States · Series B startup

Who invested in Mattermost

2 rounds we have observed, with the 6 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

DevOps

Y Combinator: S12

Funding summaryUpdated 26 Oct 2026

$70Mraised across 2 rounds since 2019, from 2 sources

$20MSeries A$50MSeries B
Latest round
Series B, $50MJun 2019
Led by
Y Combinator Continuity
Step-upi
2.5×
Investors
6 (1 led)
See who backed them

The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2020
$20MSeries A$50MSeries B
First round
Series A, $20M
Feb 2019
Biggest round
$50M
Series B · Jun 2019
Between rounds
4 months
from the last two

The rounds

  1. Jun 2019
    Series B$50M4 new

    Reported by FinSMEsSEC filing: $50M sold, first sale Jun 2019

  2. Feb 2019
    Series A$20M2 new

    Reported by FinSMEs

Founders and team

From Mattermost's own website and the SEC filings it signed: 1 founder, 9 on the team.

Ian TienCEO & Co-FounderNamed on its 2019 Form D
  • Adam EnterkinChief Revenue Officer
  • Kendra NiedziejkoChief Financial Officer
  • Lane McFarlandChief People Officer
  • Leigh DowChief Marketing Officer
  • Daniel SchallaVP Infrastructure & Security
  • James MullinsVP Sales, EMEA & APAC
  • Jason BlaisVP Product & NATO Alliances
  • Nirosha RuwanVP Legal
  • Shigeru HarasawaGeneral Manager, Mattermost Japan KK

On the board, as filediAli RowghaniShvetank JainTomasz Tunguz

Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

Series A2019Series B2019Y Combinator ContinuityLY CombinatorRedpointBattery VenturesS28 CapitalRedpoint Ventures/ S28

Everyone who backed them

Y Combinator ContinuityVC firm1round, led 1
Y CombinatorAccelerator1round
RedpointVC firm1round
Battery VenturesVC firm1round
S28 CapitalVC firm1round
Redpoint Ventures/ S28no record of our own yet1round

Missing a round, or an investor who was in one? Tell us.

Also claim to have backed them

These 2 firms list Mattermost as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.

TTV CapitalVC firmPer its own site
FlexcapVC firmPer its own site

Quick answers about Mattermost

Who invested in Mattermost?

Mattermost's investors include Y Combinator Continuity, Y Combinator, Redpoint, Battery Ventures and S28 Capital, and 1 more on record. Y Combinator Continuity led its latest round.

How much has Mattermost raised?

Mattermost has raised $70M across 2 rounds since 2019.

When did Mattermost last raise?

Mattermost's most recent round was a Series B of $50M in Jun 2019, led by Y Combinator Continuity.

What was Mattermost's biggest round?

Its most recent round, $50M in Jun 2019, is also its largest on record.

Who backed Mattermost first?

Mattermost's first round on record, in Feb 2019, was backed by Y Combinator and Redpoint Ventures/ S28.

What stage is Mattermost at?

Mattermost's latest named round is a Series B, in Jun 2019.

Where is Mattermost based?

Mattermost is based in the United States.

Who led Mattermost's rounds?

Y Combinator Continuity led the Series B in 2019.

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