Where does Keith Ryu work?

Keith Ryu is Founder of Fountain.

What companies has Keith Ryu invested in?

Investments tracked here include Actiondesk, Finch, InferEdge, Modernbanc, Mutiny.

Where did Keith Ryu go to school?

Keith Ryu studied at Y Combinator (2015).

Keith Ryu

InvestorFounder

Founder at Fountain

New York, New York, United States

FoundedFountain · YC

30 Under 30 2019 · Enterprise Technology

Find your path to Keith

11,245 people in our graph can introduce you to Keith.

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Ask Whitney Bouck to introduce you to Keith

You →Whitney · together at Fountain (2025–2026) →Keith

Ask Jamie Chen to introduce you to Keith

You →Jamie · 10 people · together at YC S15 →Keith

Ask Sam Okafor to introduce you to Keith

You →Sam · together at Forbes 30 Under 30 →Keith

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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 at Fountain YC S15

Intro paths

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 · 34

10x FoundersMünchen · $270K – $2.7M checks 1517Telluride · $50K – $1M checks ACME CapitalSan Francisco Agrolimen Ventures B Capital GroupSan Francisco · $10M – $50M checks B4 Capital$10M – $50M checks Beluga Capital Bling CapitalMiami Beach · $1M – $5M checks Breakout VenturesSan Francisco · $500K – $6M checks Calm VenturesSan Francisco Charlotte Street CapitalLondon · $390K checks Commerce VenturesSan Francisco · $1M – $5M checks Crosslink CapitalMenlo Park · $1M – $9M checks DCM VenturesMenlo Park · $250K – $15M checks Druid VenturesTampa Flucas VenturesJupiter · $100K – $5M checks Fulgur VenturesWilmington FundersClubSan Francisco · $290K checks GaingelsNew York · $200K – $500K checks Invariantes FundGuatemala City Kindred VenturesSan Francisco · $250K – $2M checks Mirae Asset Venture Investment Origin VenturesSan Francisco · $500K – $5M checks Peak State VenturesNew York · $100K – $15M checks Salesforce VenturesSan Francisco · $5M – $50M checks SemperVirens Venture CapitalSan Mateo Shasta VenturesMenlo Park · $250K – $6M checks Slow VenturesSan Francisco · $50K – $1M checks SoftBank Vision FundLondon Teamworthy VenturesNew York Uncork CapitalSan Francisco · $3M – $5M checks Uncork PlusSan Francisco Winklevoss CapitalNew York · $100K – $5M checks Y CombinatorSan Francisco · $500K checks · since 2015

Co-founders at Fountain

Jeremy CaiFounder

Experience

FountainBoard Membercurrent2021 — present
FountainFounder/CEO2014 — 2021San Francisco Bay Area

Skills & more

Web Development47Entrepreneurship42Start-ups33Programming15Web Applications7Startup Development7Business Analysis4Leadership25JavaScript18Ruby on Rails13Microsoft Excel10Git8

+6 more

DatabasesHTML/CSSPhotoshopLinuxSaaSOnboardIQ

Languages English · French · Korean

From Keith's professional profile.

Investments

Investor

Actiondesk Finch InferEdge Modernbanc Mutiny

Per curated public sources.

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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 of Fountain.
What companies did Keith Ryu found?: Keith Ryu founded Fountain.
What companies has Keith Ryu invested in?: Investments tracked here include Actiondesk, Finch, InferEdge, Modernbanc, Mutiny.
Where did Keith Ryu go to school?: Keith Ryu studied at Y Combinator (2015).