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Ian Lee

Founder

Founder at Petrarch · Founder at Syndicate

Greater Philadelphia

FoundedPetrarch · YCSyndicate

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About

Ian Lee founded Petrarch. He previously worked as a fellow at Meridian AI focused on training data and go-to-market infrastructure for AI applications in financial services, and served as a technical advisor at Scale AI on quality filtering and annotation systems. He holds a bachelor's degree in applied mathematics and psychology from Harvard University.

Founder at PetrarchYC S26

Intro paths

YC

Ian went through Y Combinator (Summer 2026) — any YC alum in your network can reach them through the YC community.

GP

Their group partner at YC was Vivian Midha Shen, General Partner at Y Combinator — the partner who ran Petrarch's batch and knows the company first-hand.

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In turn, Ian can intro founders to Petrarch's investors below.

Petrarch's investors · 7

Arena Media PartnersGaingelsNew York · $200K – $500K checksLyra Capital Pty LtdSydneyOurCrowdJerusalemVela PartnersSan Francisco · $100K – $500K checksY CombinatorSan Francisco · $500K checks · since 2026Zero Index

Co-founders at Petrarch

SHSamuel Hahn
Samuel HahnFounder
SSSudhish Swain
Sudhish SwainFounder

Founder at Syndicate

Intro paths

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In turn, Ian can intro founders to Syndicate's investors below.

Syndicate's investors · 34

25MadisonNew York · since 2026A.Capital VenturesSan Franciscoa16z cryptoMenlo ParkAndreessen HorowitzMenlo Park · $500K – $50M checks · since 2021Arca FundsLos Angeles · $400K – $1M checks · since 2021ArchetypeNew York · $100K – $10M checksAtelierBattery VenturesBoston · $500K – $100M checks · since 2021BlueYard CapitalBerlin · $500K – $5M checksCambrian Asset ManagementSan Francisco Bay Area · since 2021Cathay InnovationParis · $5M – $40M checksCoinbase VenturesSan Francisco · $100K – $10M checksCoinFundNew York · $6M – $10M checks · since 2021DivergenceSan FranciscoEarl Grey CapitalAustinElectric AntLos Angeles · since 2021Electric CapitalPalo Alto · $1M – $20M checks · since 2021Ethereal Ventures Management Ltd.Road Town, Tortola · since 2021Fabric VenturesLuxembourg · $300K checks · since 2021Future Perfect VenturesNew York · $500K – $5M checks · since 2021GD1Auckland · $150K – $900K checksIDEO CoLab VenturesSan Francisco · $100K – $10M checks · since 2021Kleiner PerkinsMenlo Park · $500K – $15M checks · since 2021Lattice CapitalDover · $500K – $1.5M checks · since 2021Narcissus VenturesNascentSan FranciscoPolychain CapitalSan Francisco · $100K – $10M checks · since 2021Todd and Rahul’s Angel FundSan Francisco · $300K – $500K checks · since 2021Ulu VenturesPalo Alto · $2M checksUnshackled VenturesPalo Alto · $300K – $500K checksUnusual VenturesMenlo Park · $1M – $15M checks · since 2026UTA VenturesBeverly HillsVariant FundNew York · $250K – $750K checksWEEKENDMiami · $100K – $300K checks

Co-founders at Syndicate

WR
William Raphael PapperExecutive Officer, Director
IJIan John Lee
Ian John LeeExecutive Officer, Director
I/ian //
ian //Founder
WP
Will PapperFounder

Experience

  1. PetrarchCEO, Co-Foundercurrent2026 — presentSan Francisco, California, United States
  2. Meridian AIFellow2026New York, New York, United States
  3. Scale AIGenerative AI Technical Advisor2024 — 2025San Francisco, California, United States
  4. University of PennsylvaniaEnergy Industrials Intern - Kleinman Center for Energy Policy2023Philadelphia, Pennsylvania, United States

Skills & more

Artificial Intelligence (AI)Valuation1M&A Modeling1Financial Modeling1

From Ian's professional profile.

Frequently asked questions

Who is Ian Lee?
Ian Lee founded Petrarch. He previously worked as a fellow at Meridian AI focused on training data and go-to-market infrastructure for AI applications in financial services, and served as a technical advisor at Scale AI on quality filtering and annotation systems. He holds a bachelor's degree in applied mathematics and psychology from Harvard University.
Where does Ian Lee work?
Ian Lee is Founder of Petrarch and Founder at Syndicate.
What companies did Ian Lee found?
Ian Lee founded Petrarch, Syndicate.
Where did Ian Lee go to school?
Ian Lee studied at Harvard University (Bachelor of Arts - BA, Applied Mathematics (Psychology) - on leave); Y Combinator (S26); The Lawrenceville School.

Founder mafias

The Episcopal Academy mafia2

Also came through, then founded or led a company.

Alexa BuckleyFounded Margaux

Same school

Shared employers