United States · 
Who invested in Flox?
Flox's investors include Addition, Y Combinator, New Enterprise Associates, Creative Destruction Lab and Luminate, and 4 more on record. Addition led its latest round.
2022202320242025
$1.2MSeed$3.0MVenture$25MSeries B
United States · Series B startup
Who invested in Flox
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.
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Funding summaryUpdated 5 Nov 2026
$29Mraised across 3 rounds since 2021, from 3 sources
$1.2MSeed$3.0MVenture$25MSeries B
- Latest round
- Series B, $25MSept 2025
- Led by
- Addition
- Step-upi
- 8.3×
- Investors
- 9 (1 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, $1.2M Oct 2021
- Biggest round
- $25M Series B · Sept 2025
- Usual gap between rounds
- 2.9 years the median of 2
The rounds
- Sept 2025Series B$25M6 new
AdditionLead
New Enterprise Associates
Luminate
Illuminate Financial ManagementD. E. Shaw & Co.
- Hetz Ventures
Reported by TechStartups
- Sept 2024Venture$3.0M2 new
Source recordedSEC filing: $3.0M sold, first sale Sept 2024
- Oct 2021
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.
Seed2021Venture2024Series B2025AdditionL
Y CombinatorNew Enterprise Associates
Creative Destruction LabLuminateIlluminate Financial Management
43NorthD. E. Shaw & Co.Hetz Ventures
AdditionLY CombinatorNew Enterprise AssociatesCreative Destruction LabLuminateIlluminate Financial Management43NorthEveryone who backed them
Hetz Venturesno record of our own yet1round
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Also claim to have backed them
These 3 firms list Flox 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 Flox
How much has Flox raised?
Flox has raised $29M across 3 rounds since 2021.
When did Flox last raise?
Flox's most recent round was a Series B of $25M in Sept 2025, led by Addition.
What was Flox's biggest round?
Its most recent round, $25M in Sept 2025, is also its largest on record.
Who backed Flox first?
Flox's first round on record, in Oct 2021, was backed by Y Combinator.
What stage is Flox at?
Flox's latest named round is a Series B, in Sept 2025.
Where is Flox based?
Flox is based in the United States.
Who led Flox's rounds?
Addition led the Series B in 2025.
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