Petrarch

Active · Advancing model capabilities for critical infrastructure

YC S26

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

AmbixOSShared: critical infrastructure, dataAntler 2025UKStartup →AI

Gecko RoboticsShared: critical infrastructure, data engineering, sourceYC W16PittsburghStartup →AI

InvertixShared: critical infrastructure, model, workYC F26MunichStartup →AI

OndakaShared: critical infrastructure, work, dataPlug and PlayUnited StatesStartup →AI

FLUIX AIShared: critical infrastructure, enterprise, dataPlug and PlayUnited StatesStartup →

Companies closest to Petrarch
Company	Category	Status	Program
AmbixOSShared: critical infrastructure, dataAntler 2025Not statedAI	AI	Not stated	Antler2025
Gecko RoboticsShared: critical infrastructure, data engineering, sourceYC W16ActiveAI, Data	AI, Data	Active	YCW16
InvertixShared: critical infrastructure, model, workYC F26ActiveAI, Devtools	AI, Devtools	Active	YCF26
OndakaShared: critical infrastructure, work, dataPlug and Play Not statedAI, Devtools	AI, Devtools	Not stated	Plug and Play
FLUIX AIShared: critical infrastructure, enterprise, dataPlug and Play Not statedAI	AI	Not stated	Plug and Play

Adjacent

Other

Stable SecurityShared: critical infrastructureNeoStartup →Other

KyberShared: critical infrastructureEF 2026LondonStartup →Other

FliteworksShared: critical infrastructureNeoStartup →Other

VisiblyShared: infrastructure sectorSeedcamp 2022Startup →Other

Polaris EcoSystemsShared: critical infrastructure, recordMassChallenge Switzerland and UK 2026United StatesStartup →

Companies next to Petrarch
Company	Category	Status	Program
Stable SecurityShared: critical infrastructureNeo Not statedOther	Other	Not stated	Neo
KyberShared: critical infrastructureEF 2026Not statedOther	Other	Not stated	EF2026
FliteworksShared: critical infrastructureNeo Not statedOther	Other	Not stated	Neo
VisiblyShared: infrastructure sectorSeedcamp 2022Not statedOther	Other	Not stated	Seedcamp2022
Polaris EcoSystemsShared: critical infrastructure, recordMassChallenge Switzerland and UK 2026Not statedOther	Other	Not stated	MassChallengeSwitzerland and UK 2026

Also from S26 in AI

All of S26

CueBenchRL post-training for science reasoning and performance engineeringYC S26San FranciscoStartup →AI

MagmaMonetize your agent's traces.YC S26San FranciscoStartup →AI

MarkovThe data lab for engineering and computer-use AI.YC S26San FranciscoStartup →AI

Olam LabsCrafting simulations for frontier lab model trainingYC S26San FranciscoStartup →AI

Autoresearch, Inc.Autoresearch as a service: we solve your hardest measurable problemsYC S26San FranciscoStartup →AI

CoArenaThe biggest crowdsourced benchmark for Computer-UseYC S26San FranciscoStartup →

Company	Category	Status
CueBenchRL post-training for science reasoning and performance engineeringteam of 3ActiveAI, Data	AI, Data	Active
MagmaMonetize your agent's traces.ActiveAI, Data, Devtools	AI, Data, Devtools	Active
MarkovThe data lab for engineering and computer-use AI.team of 2ActiveAI, Data, Devtools	AI, Data, Devtools	Active
Olam LabsCrafting simulations for frontier lab model trainingteam of 2ActiveAI, Data	AI, Data	Active
Autoresearch, Inc.Autoresearch as a service: we solve your hardest measurable problemsteam of 3ActiveAI, Devtools	AI, Devtools	Active
CoArenaThe biggest crowdsourced benchmark for Computer-Useteam of 2ActiveAI, Data, Devtools	AI, Data, Devtools	Active

Founders

Ian LeeFounder/CEO
Samuel HahnFounder/COO
Sudhish SwainFounder/CTO

About Petrarch

Petrarch works with bankruptcy courts to source records from enterprises in the critical infrastructure sectors, then rigorously de-identifies and transforms the data into RL environments and tasks.

YC batch: S26 · Summer 2026
Status, per YC: Active
Category: AI, Data
Team size: 3
Location: San Francisco, CA, USA
Founded: 2026
Checked: 7h ago

YC tags: Reinforcement Learning, B2B, Privacy, Data Engineering, AI