Find your path to Keith
11,006 people in our graph share verified history with Keith — schools, employers, funds. One of them is your warm intro.
Whitney BouckunlockedKeith: together at Fountain (2025–2026)
×2Keith: together at YC S15
×7Keith: together at Forbes 30 Under 30
×2Keith: together at Y Combinator
About
Keith Ryu is the former founder and CEO of Fountain, where he currently serves as a board member. A participant in Y Combinator's Summer 2015 batch, he has invested as an angel and LP in approximately 50 startups and funds, and is based across New York, San Francisco, and Seoul.
Founder/CEO at FountainYC S15
Intro paths
YC
Keith went through Y Combinator (Summer 2015) — any YC alum in your network can reach them through the YC community.
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In turn, Keith can intro founders to Fountain's investors below.
Fountain's investors · 22
10x FoundersMünchen · $270K – $2.7M checks1517Telluride · $50K – $1M checksB Capital GroupManhattan Beach · $10M – $50M checksB4 Capital$10M – $50M checksBling CapitalMiami Beach · $1M – $5M checksCharlotte Street CapitalLondon · $390K checksCommerce VenturesSan Francisco · $1M – $5M checksCrosslink CapitalSan Francisco · $1M – $9M checksDCM VenturesMenlo Park · $250K – $15M checksFlucas VenturesJupiter · $100K – $5M checksFundersClubSan Francisco · $250K – $5M checksInvariantes FundGuatemala CityKindred VenturesSan Francisco · $250K – $2M checksOrigin VenturesSan Francisco · $500K – $5M checksPeak State VenturesNew York · $100K – $15M checksSemperVirens Venture CapitalSan MateoShasta VenturesMenlo Park · $250K – $6M checksSoftBank Vision FundLondonTeamworthy VenturesNew YorkUncork CapitalSan Francisco · $3M – $5M checksWinklevoss CapitalNew York · $100K – $5M checksY CombinatorSan Francisco · $500K checks · since 2015
Experience
Skills & more
Web Development47Entrepreneurship42Start-ups33Programming15Web Applications7Startup Development7Business Analysis4Leadership25JavaScript18Ruby on Rails13Microsoft Excel10Git8
+6 more
DatabasesHTML/CSSPhotoshopLinuxSaaSOnboardIQLanguages English · French · Korean
From Keith's professional profile.
Frequently asked questions
- Who is Keith Ryu?
- Keith Ryu is the former founder and CEO of Fountain, where he currently serves as a board member. A participant in Y Combinator's Summer 2015 batch, he has invested as an angel and LP in approximately 50 startups and funds, and is based across New York, San Francisco, and Seoul.
- Where does Keith Ryu work?
- Keith Ryu is Founder/CEO of Fountain.
- What companies did Keith Ryu found?
- Keith Ryu founded Fountain.
- Where did Keith Ryu go to school?
- Keith Ryu studied at Y Combinator (2015).
Founder mafias
Y Combinator mafia10,444
Also came through, then founded or led a company.
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 VenturesCollin WallaceGeneral Partner at Lobby CapitalVictor SantosVictor Scout at One Way Ventures
+ 1,994 more
Shared employers
Also worked at Fountain9
Whitney BouckA foodie who works at a venture capital firm and blogs about culinary adventuresJason ChernInvestment Team Member at Wipro VenturesBrent HillManaging Partner at Origin VenturesScott SternPartner at Origin VenturesChristine KeungPartner at J2 VenturesKyle LuiGeneral Partner at Bling Capital
+ 3 more





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