United States · 
Who invested in Zenflow?
Zenflow's investors include Y Combinator, National Science Foundation, National Institutes of Health, Eight Roads Ventures and F-Prime Capital, and 5 more on record.
20162018202020222024
$120KSeed$31MSeries A$24MSeries CUnited States · Series C startup
Who invested in Zenflow
3 rounds we have observed, with the 10 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.
Y Combinator: W15
Funding summaryUpdated 26 Oct 2026
$56Mraised across 3 rounds since 2014, from 3 sources
$120KSeed$31MSeries A$24MSeries C
- Latest round
- Series C, $24MNov 2024
- Biggest round
- $31MSeries A · Feb 2018
- Investors
- 10
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, $120K Dec 2014
- Biggest round
- $31M Series A · Feb 2018
- Usual gap between rounds
- 6.8 years the median of 2
The rounds
- Nov 2024Series C$24M3 new1 returning
Source recordedSEC filing: $19M sold, first sale Nov 2024
- Feb 2018Series A$31M3 new
Reported by FinSMEsSEC filing: $31M sold, first sale Sept 2017
- Dec 2014Seed$120K4 new
From a historical funding record
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.
Everyone who backed them
Farzad (Zod) NazemVC firm1round
Medical Technology Venture PartnersVC firm1round
Missing a round, or an investor who was in one? Tell us.
Quick answers about Zenflow
How much has Zenflow raised?
Zenflow has raised $56M across 3 rounds since 2014.
When did Zenflow last raise?
Zenflow's most recent round was a Series C of $24M in Nov 2024.
What was Zenflow's biggest round?
Zenflow's largest round on record is $31M (Series A), in Feb 2018.
Who backed Zenflow first?
Zenflow's first round on record, in Dec 2014, was backed by Y Combinator, Farzad (Zod) Nazem and Astia Angels and 1 others.
What stage is Zenflow at?
Zenflow's latest named round is a Series C, in Nov 2024.
Where is Zenflow based?
Zenflow is based in the United States.
Companies like Zenflow
In the same sector, and raised in the last eighteen months.
Find investors like these
Search every investor by what they have actually funded, then narrow to your stage and market. Free.