Where does Lynne Chou O'Keefe work?

Lynne Chou O'Keefe is Founder and Managing Partner at Define Ventures and Board director at Layer Health and Board director at Soda Health, Inc. and Board director at Miga.

What check size does Lynne Chou O'Keefe write?

Lynne Chou O'Keefe typically writes checks of $750K – $6M.

What boards does Lynne Chou O'Keefe sit on?

Lynne Chou O'Keefe holds tracked board seats at DexCare, Livongo.

Where did Lynne Chou O'Keefe go to school?

Lynne Chou O'Keefe studied at Stanford University (BS, Industrial Engineering); Harvard Business School (MBA); John Burroughs School.

Lynne Chou O'Keefe

Investor

Founder and Managing Partner at Define Ventures · Board director at Layer Health · Board director at Soda Health, Inc. · Board director at Miga

United States

Writes $750K – $6M checks

Find your path to Lynne

593 people in our graph share verified history with Lynne — schools, employers, funds. One of them is your warm intro.

Alex TranunlockedLynne: together at Kleiner Perkins (2013–2017)

×3Lynne: together at Goldman Sachs

×6Lynne: together at Kleiner Perkins

Lynne: together at John Burroughs School

About

Lynne Chou O'Keefe launched 10+ device product families pre-VC, offering deep product expertise as a day‑zero partner to early-stage digital health founders—an early Livongo board member through its multibillion‑dollar exit.

Contact· self-published, not guessed

l•••@definevc.comreveal

Invests in

AI & Machine LearningConsumerHealthtechInsurTechSaaS

Board director at Layer Health

Intro paths

→

In turn, Lynne can intro founders to Layer Health's investors below.

Layer Health's investors · 4

Define VenturesSan Francisco · $750K – $6M checks · since 2025 East Post Road Ventures Flare Capital PartnersBoston · $1M – $10M checks · since 2025 GV (Google Ventures)Mountain View · $250K – $50M checks · since 2025

Co-founders at Layer Health

David A. SontagExecutive Officer, Director

Luke MurrayFounder

Divya GopinathFounder

Board director at Soda Health, Inc.

Intro paths

→

In turn, Lynne can intro founders to Soda Health, Inc.'s investors below.

Soda Health, Inc.'s investors · 3

Define VenturesSan Francisco · $750K – $6M checks · since 2024 Lightspeed Venture PartnersMenlo Park · $1.7M – $87M checks · since 2024 Qiming HealthcareBellevue · since 2024

Co-founders at Soda Health, Inc.

Robert Alan KnightExecutive Officer, Director

Board director at Miga

Intro paths

→

In turn, Lynne can intro founders to Miga's investors below.

Miga's investors · 8

Adapt VenturesNew York · $250K – $350K checks · since 2022 Alumni VenturesManchester · $100K – $10M checks · since 2022 Asymmetric Capital PartnersBoston · $1M – $10M checks · since 2022 Define VenturesSan Francisco · $750K – $6M checks · since 2025 Floating PointBoston · since 2022 Lux CapitalNew York · $100K – $100M checks · since 2022 Quiet CapitalSan Francisco · $100K – $25M checks · since 2022 VamosVenturesLos Angeles · $2M checks · since 2022

Co-founders at Miga

Walter Raymond CooperExecutive Officer, Director, Promoter

Experience

Define VenturesFounder and Managing Partnercurrent2018 — presentSan Francisco, CA
Kleiner Perkins Caufield & ByersSenior Partner, Healthcare Group2013 — 2018
AbbottGlobal Product Marketing2005 — 2013
Apax PartnersVenture Capital, Enterprise Software2001 — 2003
Goldman SachsInvestment Banking, Mergers and Acquisitions1999 — 2001

Skills & more

Corporate Development5Cross-functional Team Leadership23Global Marketing28Investment Banking6Lifesciences11Medical Devices24Marketing10MergersProduct Launch12Strategy29Vascular3Venture Capital42

From Lynne's professional profile.

Deals · 1

LivongoBoard seat

via Define Ventures · filed Mar 2017 · $52.5M raise

Attribution from SEC filings, press coverage, and firm rosters.

Other disclosed investments

Board seats

DexCare

Per SEC Form D filings.

Colleagues at Define Ventures

Amanda Duckworth

Communications Advisor at Define Ventures

Bangaly Kaba

Consumer Advisor at Define Ventures

Beth Bierbower

Healthcare Advisor at Define Ventures

Brook Byers

Founder, Kleiner Perkins

Bruce Broussard

Venture Partner at Define Ventures

Carolyn Magill

Venture Partner at Define Ventures

Chirag Shah

Partner at Define Ventures

Chuka Esiobu

Principal at Define Ventures

Network4

A.G. Breitenstein

Healthcare Advisor at Define Ventures

Chirag Shah

Partner at Define Ventures

David C. Schwab

Founder and Managing Director at Vertical Venture Partners

Glen Tullman

Partner at 7wire Ventures

Investors connected to Lynne in public investor directories — a warm-intro map.

Frequently asked questions

Who is Lynne Chou O'Keefe?: Lynne Chou O'Keefe launched 10+ device product families pre-VC, offering deep product expertise as a day‑zero partner to early-stage digital health founders—an early Livongo board member through its multibillion‑dollar exit.
Where does Lynne Chou O'Keefe work?: Lynne Chou O'Keefe is Founder and Managing Partner at Define Ventures and Board director at Layer Health and Board director at Soda Health, Inc. and Board director at Miga.
What does Lynne Chou O'Keefe invest in?: Lynne Chou O'Keefe invests in AI & Machine Learning, Consumer, Healthtech, InsurTech, SaaS.
What check size does Lynne Chou O'Keefe write?: Lynne Chou O'Keefe typically writes checks of $750K – $6M.
What boards does Lynne Chou O'Keefe sit on?: Lynne Chou O'Keefe holds tracked board seats at DexCare, Livongo.
Where did Lynne Chou O'Keefe go to school?: Lynne Chou O'Keefe studied at Stanford University (BS, Industrial Engineering); Harvard Business School (MBA); John Burroughs School.