United States · 
Who invested in Fossa?
Fossa's investors include Bain Capital Ventures, Costanoa Ventures, Norwest Venture Partners, Hack VC and Jaan Tallinn, and 4 more on record.
20172019202120232025
$2.2MSeed$8.5MSeries A$5.1MVentureUnited States · Venture startup
Who invested in Fossa
3 rounds we have observed, with the 9 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
$16Mraised across 3 rounds since 2017, from 3 sources
$2.2MSeed$8.5MSeries A$5.1MVenture
- Latest round
- Venture, $5.1MJul 2025
- Biggest round
- $8.5MSeries A · Sept 2019
- Investors
- 9 (2 led)
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, $2.2M Feb 2017
- Biggest round
- $8.5M Series A · Sept 2019
- Usual gap between rounds
- 5.8 years the median of 2
The rounds
- Jul 2025Venture$5.1M1 new3 returning
Source recordedSEC filing: $5.1M sold, first sale Jul 2025
- Sept 2019Series A$8.5M3 new
Reported by FinSMEs
- Feb 2017Seed$2.2M5 new
- Jaan Tallinn
- Steve Chen
Justin Mateen- Amr Awadallah
- Bain Capital Ventures/ Marc Benioff
Reported by FinSMEs
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.
Seed2017Series A2019Venture2025
Bain Capital VenturesL
Costanoa VenturesL
Norwest Venture Partners
Hack VCJaan TallinnSteve ChenJustin MateenAmr AwadallahBain Capital Ventures/ Marc Benioff
Bain Capital VenturesLCostanoa VenturesLNorwest Venture PartnersHack VCJaan TallinnSteve ChenJustin MateenAmr AwadallahBain Capital Ventures/ Marc BenioffEveryone who backed them
Jaan TallinnVC firm1round
Steve ChenAngel1round
Amr AwadallahAngel1round
Bain Capital Ventures/ Marc Benioffno record of our own yet1round
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
These 3 firms list Fossa 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.
Quick answers about Fossa
How much has Fossa raised?
Fossa has raised $16M across 3 rounds since 2017.
When did Fossa last raise?
Fossa's most recent round was a Venture of $5.1M in Jul 2025.
What was Fossa's biggest round?
Fossa's largest round on record is $8.5M (Series A), in Sept 2019, led by Bain Capital Ventures.
Who backed Fossa first?
Fossa's first round on record, in Feb 2017, was backed by Jaan Tallinn, Steve Chen and Justin Mateen and 2 others.
What stage is Fossa at?
Fossa's latest named round is a Venture, in Jul 2025.
Where is Fossa based?
Fossa is based in the United States.
Who led Fossa's rounds?
Bain Capital Ventures led the Series A in 2019.
Companies like Fossa
In the same sector, and raised in the last eighteen months.
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