United States · 
Who invested in Neuron23?
Neuron23's investors include Craft Ventures, Kleiner Perkins, Perceptive Advisors, Redmile Group and Blue Owl.
2026
$97MSeries D$2.5MGrant
United States · Funded startup
Who invested in Neuron23
Funding summaryUpdated 26 Oct 2026
$99Mraised across 2 rounds since 2025, from 2 sources
$97MSeries D$2.5MGrant
- Latest round
- Grant, $2.5MJun 2026
- Biggest round
- $97MSeries D · Jun 2025
- Investors
- 5 (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
- Series D, $97M Jun 2025
- Biggest round
- $97M Series D · Jun 2025
- Between rounds
- 11 months from the last two
The rounds
- Jun 2026
- Jun 2025
Founders and team
From Neuron23's own website: 4 on the team.
- Tom DeMelfiVP, Regulatory Affairs and Quality
- Amrit NagpalDirector
- Karen LamSVP, Finance & Corporate Controller
- Kevin RaidyDirector
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
Missing a round, or an investor who was in one? Tell us.
Quick answers about Neuron23
How much has Neuron23 raised?
Neuron23 has raised $99M across 2 rounds since 2025.
When did Neuron23 last raise?
Neuron23's most recent round was a Grant of $2.5M in Jun 2026.
What was Neuron23's biggest round?
Neuron23's largest round on record is $97M (Series D), in Jun 2025, led by Craft Ventures.
Who backed Neuron23 first?
Neuron23's first round on record, in Jun 2025, was backed by Craft Ventures.
What stage is Neuron23 at?
Neuron23's latest named round is a Grant, in Jun 2026.
Where is Neuron23 based?
Neuron23 is based in the United States.
Who led Neuron23's rounds?
Craft Ventures led the Series D in 2025.
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