About
Penny Chen is the co-founder and CEO of Pax AI, where she develops algorithms for pricing, forecasting, fulfillment, and capacity planning. She previously worked on optimization and supply chain projects at MIT, Flexport, and Amazon, applying machine learning, statistics, and algorithmic approaches.
Likely email· guessed from name + firm domain, not firm-published
- p•••@paxai.comreveal75% confident
Founder & CEO at PaxYC S24
Intro paths
YC
Penny went through Y Combinator (Summer 2024) — any YC alum in your network can reach them through the YC community.
GP
Their group partner at YC was Brad Flora, Backing expeditions into the future — the partner who ran Pax's batch and knows the company first-hand. YC profile ↗
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In turn, Penny can intro founders to Pax's investors below.
Pax's investors · 9
Basis Set VenturesMenlo Park · $1M – $3M checks · since 2025BenchmarkSan Francisco · $100K – $30M checks · since 2026General CatalystSan Francisco · $30M checks · since 2025GreenoaksSan Francisco · $1M – $50M checks · since 2026Initialized CapitalSan Francisco · $1M – $5M checks · since 2025Sancus VenturesSan Francisco · since 2025Soma CapitalSacramento · $100K – $300K checks · since 2025Transpose Platform ManagementHoustonY CombinatorSan Francisco · $500K checks · since 2024
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Co-founders at Pax
CL
Chris LeFounder
Experience
Skills & more
Languages Chinese · English · Taiwanese
From Penny's professional profile.
Frequently asked questions
- Who is Penny Chen?
- Penny Chen is the co-founder and CEO of Pax AI, where she develops algorithms for pricing, forecasting, fulfillment, and capacity planning. She previously worked on optimization and supply chain projects at MIT, Flexport, and Amazon, applying machine learning, statistics, and algorithmic approaches.
- Where does Penny Chen work?
- Penny Chen is Founder & CEO of Pax.
- What companies did Penny Chen found?
- Penny Chen founded Pax.
- Where did Penny Chen go to school?
- Penny Chen studied at Y Combinator; Massachusetts Institute of Technology (Doctor of Philosophy - PhD); Massachusetts Institute of Technology (Dual Master's Degree in MechE and EECS).
Founder mafias
Y Combinator mafia8,773
Also came through, then founded or led a company.
Sam AltmanPresidentFounded Tools for Humanity +3Jessica LivingstonCo-founderFounded Y CombinatorAlexis OhanianYC Summer 2005Founded RedditFred EhrsamYC Summer 2012Founded Nudge +1Matt HuangYC Winter 2011Founded HotspotsTrae StephensYC Winter 2022Founded Pursuit +1
+ 8,766 more
Y Combinator mafia4,716
Also came through, then founded or led a company.
Ryan SheaEntrepreneurshipFounded StacksTarek MansourFounded KalshiSuhail DoshiEating beans & riceFounded Playground +1Subomi OluwalanaW22Founded ConvoyDarius "Bubs" MonsefS19Founded Sightbox +3Matthew ScholzFounded Oisin Biotechnologies +3
+ 4,709 more
Massachusetts Institute of Technology mafia546
Also came through, then founded or led a company.
Elad GilPhDFounded Brain Co.Nat FriedmanBachelor of ScienceFounded XamarinMatt HuangB.S.Founded HotspotsDelian AsparouhovDropoutFounded Nightingale +1Drew HoustonBSFounded Dropbox +1Arash FerdowsiComputer ScienceFounded Dropbox
+ 539 more
Flexport mafia13
Also came through, then founded or led a company.
Trae StephensDirectorFounded Pursuit +1Rob Schoder, Jr.General Manager, MidwestFounded Vinyl EquityHong HuSenior Engineering Manager & Site LeaderFounded 500FriendsAndrew CoyleDirector of DesignFounded Hey HealthcareTennison ChanSenior Software EngineerFounded TruewindYotam HamielSenior Software EngineerFounded Magicflow 𐂂
+ 6 more
Flexport mafia13
Also came through, then founded or led a company.
Ryan PetersenCEOFounded FlexportRob Schoder, Jr.General Manager, MidwestFounded Vinyl EquityHong HuDirector of Engineering, Site Leader - ChinaFounded 500FriendsAndrew CoyleDirector of DesignFounded Hey HealthcareTennison ChanSenior Software EngineerFounded TruewindYotam HamielSenior Software EngineerFounded Magicflow 𐂂
+ 6 more
Same school
Also attended Y Combinator2,000
Tarek MansourCo-founder & CEO of KalshiSuhail DoshiFounder of Mixpanel; founder of ParticleSubomi OluwalanaCo-founder & CEO of ConvoyArhaan A.Deeptech Fellow at Clear VenturesMaroof AhmedFounder at Octopus VenturesJustin SwartPartner at Bitkraft Esports Ventures
+ 1,994 more
Also attended Massachusetts Institute of Technology1,388
Fred WilsonCo-founder & Partner at Union Square VenturesElad GilSolo general partner investing through Gil CapitalAileen LeeFounder & Managing Partner of Cowboy VenturesHemant TanejaCEO & Managing Director of General CatalystNat FriedmanCo-lead of Meta Superintelligence Labs; co-founder of NFDGBrad FeldCo-founder of Foundry and Techstars
+ 1,382 more
Also attended National Taiwan University68
Giorgio PastariniSenior Associate at P101 VenturesJulie YangInvestor at Third Rock VenturesTracy WilliamsInvestor at Third Rock VenturesJerry YangGeneral Partner at HCVCYannick RitschelInvestor at Backbone VenturesChristian GubaInvestor at Extantia Capital
+ 62 more
Shared employers
Also worked at Pax2
Also worked at Amazon651
Apoorva MehtaFounder of Instacart; founder of Cloud Health SystemsBinny BansalCo-founder of Flipkart; co-founder of PhonePe and OppDoorBrad PorterFounder & CEO of Collaborative RoboticsJane MooneyCo-founder & VP, Strategy and Finance at Collaborative RoboticsNick FrosstCo-founder of CohereDave MunichielloInvestor at GV (Google Ventures)
+ 645 more
