Fundraising Fox

Winston Chi

Founder

Founder at NOSO LABS

San Francisco, California, United States

FoundedNOSO LABS · YC

About

Winston Chi is a founder who previously founded Butter Technologies, which was acquired by Grubmarket. He is currently developing HVAC diagnostic software for field technicians at NOSO Labs.

Founder at NOSO LABSYC S25

Intro paths

YC

Winston went through Y Combinator (Summer 2025) — any YC alum in your network can reach them through the YC community.

GP

Their group partner at YC was Jon Xu, General Partner at Y Combinator — the partner who ran NOSO LABS's batch and knows the company first-hand. YC profile ↗

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In turn, Winston can intro founders to NOSO LABS's investors below.

NOSO LABS's investors · 2

Asylum VenturesBrooklynY CombinatorSan Francisco · $500K checks · since 2025

Co-founders at NOSO LABS

AXAlex Xi
Alex XiFounder

Experience

  1. NOSO LABS(YC S25)Co-Founder, CEOcurrent2025 — presentSan Francisco Bay Area
  2. Butter TechnologiesCo-Founder, CEO2020 — 2024San Francisco Bay Area
  3. IOSTFounding Tech Lead2017 — 2020New York City Metropolitan Area
  4. Bloomberg LPSenior Software Engineer2016 — 2018New York, New York
  5. TripAdvisorSoftware Engineer2015 — 2016Greater Boston

Skills & more

Languages Chinese · English

From Winston's professional profile.

Frequently asked questions

Who is Winston Chi?
Winston Chi is a founder who previously founded Butter Technologies, which was acquired by Grubmarket. He is currently developing HVAC diagnostic software for field technicians at NOSO Labs.
Where does Winston Chi work?
Winston Chi is Founder of NOSO LABS.
What companies did Winston Chi found?
Winston Chi founded NOSO LABS.
Where did Winston Chi go to school?
Winston Chi studied at Tufts University (PhD Dropout; Master's, Machine Learning); Y Combinator.

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

Tufts University mafia40

Also came through, then founded or led a company.

Andrew FeinbergBachelor of Arts (B.A.)Founded Brightcove +1Guy FriedmanBAFounded Technical.ly +1Max SafaiMSFounded M8 Systems +1Mark PiperBachelor of Science (BS)Founded Lish +1Matthew CowanFounded BreezeworksMichael NerilB.A.Founded Spider Capital

+ 33 more

Same school

Also attended Tufts University201

Roger KrakoffGeneral Partner at Monta Vista CapitalMatt GersonInvestor at RevolutionAlex MorganInvestor at Khosla VenturesNiko CiminelliInvestor at Khosla VenturesHal PazInvestor at Khosla VenturesClay BergerInvestor at IVP (Institutional Venture Partners)

+ 195 more

Also attended Y Combinator2,000

Tarek MansourCo-founder & CEO of KalshiSuhail DoshiFounder of Mixpanel; founder of ParticleSubomi OluwalanaCo-founder & CEO of ConvoyMaroof AhmedFounder at Octopus VenturesJustin SwartPartner at Bitkraft Esports VenturesCollin WallaceGeneral Partner at Lobby Capital

+ 1,994 more

Shared employers

Also worked at Bloomberg LP154

Reed HastingsCo-founder of NetflixEric WagnerVP of Research and Data at Redpoint VenturesVivek GopalanInvestment Team at 8VCAndrea GurnariInvestor at Moonfire VenturesAllison PavlickInvestor Relations Principal at S32Adriana RocheHead of Talent at Uncork Capital

+ 148 more

Also worked at TripAdvisor17

Jeremy PhilipsInvestor at Spark CapitalVinnie McSweeneyInvestor at OpenView Venture PartnersErik RannalaCo-Founder & Partner at Mucker CapitalSteve KauferCEO, Tripadvisor & Founding Pillar at Pillar VCBryan BalinInvestor at Sand Hill AngelsEric BoscoVP, Product, The Trade Desk at The 98

+ 11 more