United States · 
Who invested in Threat Stack?
Threat Stack's investors include 406 Ventures, Atlas Venture, Techstars, Right Side Capital Management and Eight Roads Ventures.
20132014201520162017
$118KSeed$1.2MSeed$2.7MSeries A$7.9MSeries A$45MSeries CUnited States · Series C startup
Who invested in Threat Stack
5 rounds we have observed, with the 5 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.
Funding summaryUpdated 26 Oct 2026
$57Mraised across 5 rounds since 2013, from 5 sources
$118KSeed$1.2MSeed$2.7MSeries A$7.9MSeries A$45MSeries C
- Latest round
- Series C, $45MSept 2017
- Step-upi
- 5.7×
- Investors
- 5
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Seed, $118K Jan 2013
- Biggest round
- $45M Series C · Sept 2017
- Usual gap between rounds
- 16 months the median of 4
The rounds
- Sept 2017Series C$45M2 new2 returning
Source recordedSEC filing: $33M sold, first sale Sept 2017
- Aug 2015Series A$7.9M2 returning
From a historical funding recordSEC filing: $7.9M sold, first sale Nov 2014
- Apr 2014Series A$2.7M2 returning
From a historical funding recordSEC filing: $2.7M sold, first sale Apr 2014
- Oct 2013Seed$1.2M2 new
Reported by bostinno.streetwise.coSEC filing: $1.3M sold, first sale Aug 2013
- Jan 2013
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.
Seed2013Seed2013Series A2014Series A2015Series C2017
406 Ventures
Atlas Venture
Techstars
Right Side Capital Management
Eight Roads Ventures
406 VenturesAtlas VentureTechstarsRight Side Capital ManagementEight Roads VenturesEveryone who backed them
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
This firm lists Threat Stack as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.
Quick answers about Threat Stack
How much has Threat Stack raised?
Threat Stack has raised $57M across 5 rounds since 2013.
When did Threat Stack last raise?
Threat Stack's most recent round was a Series C of $45M in Sept 2017.
What was Threat Stack's biggest round?
Its most recent round, $45M in Sept 2017, is also its largest on record.
Who backed Threat Stack first?
Threat Stack's first round on record, in Jan 2013, was backed by Techstars.
What stage is Threat Stack at?
Threat Stack's latest named round is a Series C, in Sept 2017.
Where is Threat Stack based?
Threat Stack is based in the United States.
Companies like Threat Stack
In the same sector, and raised in the last eighteen months.
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