M
COMPANY PROFILE
Mattermost
Mattermost provides enterprise-grade messaging solutions for organizations on a vibrant open source platform
Valuation
$250–500M
Last recorded · 2026
Revenue
$10–50M
Latest reported FY
Headcount
100–500
Current team size
At a glance
- Founded
- 2011
- Headquarters
- Palo Alto, United States
- Sector
- Other B2B Software
- Power Law
- Colt$25–100M revenue
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed1 investor entered at this stage
Series A2 investors entered at this stage
- SCS28 Capital
Redpoint
Series B and later1 investor entered at this stage
Employees mapped
165
incl. 1 AI specialist
Founders
Hidden — book a demo/100
quality score
Key operators
14
quality Hidden — book a demo/100
Potential founders
Hidden — book a demo
likely future founders
Talent movements
Hidden — book a demo in · Hidden — book a demo out
past 12 months
Source: Dealroom Talent Intelligence.
Alumni founders
Former Mattermost employees who went on to found companies, sorted by Dealroom signal score.
NANOFire AIEst. 2024
SESpiros EconomakisUnited States
Signal score81
ASAsk SageEst. 2023
Nicolas M ChaillanUnited StatesSignal score75
FSFinTech StudiosEst. 2014
RTRich TaylorUnited States
Signal score59
TATempo AIEst. 2011
Corey HulenUnited StatesSignal score59
PRProtioEst. 2021
John T.GreeceSignal score51
Explore the full alumni networkBook a demo
Global footprint
Market sentiment
An AI-synthesised read of the highest-engagement posts about Mattermost on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
See Mattermost on the full Dealroom platform
Live deal flow, founder pedigree, hiring signals, revenue trajectory, and the full cap table.