Petrichor

Active · Wet lab infrastructure that turns AI experiments into training data.

YC F26

Website YC profile

Why it ranks

How the rank works

7signal of 100 · rising 7

went through YCProgram · this site+4
team of 3Team size · YC's directory+3.1

A sum of public facts, not a judgement and not investment advice.

Competitors

NeuromorphicShared: lab infrastructure, wet, experimentYC S26San FranciscoStartup →AI

Ångström AIShared: wet lab, experimentYC S24San FranciscoStartup →AI

AbInitio BioShared: wet lab, data, takeYC X26BostonStartup →AI

GloGloShared: wet lab, experiment, learnYC W24San FranciscoStartup →AI

ReactWiseShared: wet lab, experiment, dataYC S24CambridgeStartup →

Companies closest to Petrichor
Company	Category	Status	Program
NeuromorphicShared: lab infrastructure, wet, experimentYC S26ActiveAI	AI	Active	YCS26
Ångström AIShared: wet lab, experimentYC S24ActiveAI	AI	Active	YCS24
AbInitio BioShared: wet lab, data, takeYC X26ActiveAI	AI	Active	YCX26
GloGloShared: wet lab, experiment, learnYC W24ActiveAI	AI	Active	YCW24
ReactWiseShared: wet lab, experiment, dataYC S24ActiveAI, Devtools	AI, Devtools	Active	YCS24

Adjacent

Other

Tacit MachinesShared: wet lab, biology, infrastructureEF 2025LondonStartup →AIMaxinsightsShared: training dataSPC 2025San FranciscoStartup →AI

Ooak DataShared: training data, turn, realYC S26San FranciscoStartup →AI

AnakinShared: clean data, infrastructure, scaleYC S21AustinStartup →AI

HubShared: training data, lab, realYC X26San FranciscoStartup →

Companies next to Petrichor
Company	Category	Status	Program
Tacit MachinesShared: wet lab, biology, infrastructureEF 2025Not statedOther	Other	Not stated	EF2025
MaxinsightsShared: training dataSPC 2025Not statedAI, Devtools	AI, Devtools	Not stated	SPC2025
Ooak DataShared: training data, turn, realYC S26ActiveAI	AI	Active	YCS26
AnakinShared: clean data, infrastructure, scaleYC S21ActiveAI, Data, Devtools	AI, Data, Devtools	Active	YCS21
HubShared: training data, lab, realYC X26ActiveAI, Data, Devtools	AI, Data, Devtools	Active	YCX26

Also from F26 in AI

All of F26

AsimEnable robots to operate safely in the real world.YC F26San FranciscoStartup →AI

CleanWe predict when a company is about to buy.YC F26San FranciscoStartup →AI

Kailash LabsA factory for small and specialized video reasoning modelsYC F26BengaluruStartup →AI

ORO AIRL environments & simulations for autonomous businesses.YC F26VancouverStartup →AI

Shire IntelligenceShire uses CCTV to run restaurants in real time.YC F26Myrtle BeachStartup →AI

SynaraBuilding the next generation of AI enabled monitoringYC F26San FranciscoStartup →

Company	Category	Status
AsimEnable robots to operate safely in the real world.team of 4ActiveAI	AI	Active
CleanWe predict when a company is about to buy.team of 5ActiveAI	AI	Active
Kailash LabsA factory for small and specialized video reasoning modelsteam of 2ActiveAI, Data	AI, Data	Active
ORO AIRL environments & simulations for autonomous businesses.team of 2ActiveAI, Devtools	AI, Devtools	Active
Shire IntelligenceShire uses CCTV to run restaurants in real time.team of 4ActiveAI	AI	Active
SynaraBuilding the next generation of AI enabled monitoringteam of 2ActiveAI, Data, Devtools	AI, Data, Devtools	Active

Founders

Wilhelm HedenskogFounder/CEO
Jesper JohanssonFounder
Elias ReinfeldtFounder

About Petrichor

Real biology requires a wet lab, and building one takes years and a team most AI companies don't have. Petrichor runs their experiments at scale and sends back the dense, clean data their models need to learn from.

YC batch: F26 · Fall 2026
Status, per YC: Active
Category: AI
Team size: 3
Location: San Francisco, CA, USA
Founded: 2026
Checked: 13h ago

YC tags: Deep Learning, AI