Where does David Hartwig work?

David Hartwig is Partner at 359 Capital and Board director at StackHawk and Board director at Medable.

What check size does David Hartwig write?

David Hartwig typically writes checks of $10M – $100M.

What boards does David Hartwig sit on?

David Hartwig holds tracked board seats at Brightfield, Brightfield Holdings, Inc., LeanData, Medable, Medable, StackHawk, StackHawk.

What companies has David Hartwig invested in?

Investments tracked here include Iex, Sword Health, Yugabyte, Alfresco, Datria, Fitbit, Livongo Health, Looker, Ondeck Capital, Ticketfly.

Where did David Hartwig go to school?

David Hartwig studied at Princeton University (Bachelor of Engineering - BE, Operations Research); University of California, Berkeley, Haas School of Business (Master of Business Administration (MBA)).

Does David Hartwig lead rounds?

Yes — David Hartwig has led 3 tracked investments.

David Hartwig

Investor

Partner at 359 Capital · Operating Partner at Sapphire Ventures · Board director at StackHawk · Board director at Medable

Palo Alto, California

Writes $10M – $100M checks · typically $25M

Find your path to David

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

DennisunlockedDavid: together at University of California, Berkeley, Haas School of Business (2005–2006)

×11David: together at Sapphire Ventures

About

Co-founder and partner at Sapphire Ventures (joined 2006) and a partner at 359 Capital, with over 20 years in venture capital. A generalist technology investor focused on applied AI, B2B software, digital health, gaming, and marketplaces, currently serving on the boards of Brightfield, LeanData, Medable, and StackHawk. Previously worked at Deloitte Consulting and Battery Ventures; holds a BSE from Princeton and an MBA from UC Berkeley.

Contact· self-published, not guessed

d•••@sapphireventures.comreveal

Likely email· guessed from name + firm domain, not firm-published

d•••@sapphireventures.comreveal100% confident

Invests in

AI & Machine LearningCloud ComputingConsumerData & InfrastructureDigital Health

Beyond investing

Education: Studied at Princeton (BSE, operations research) Studied at University of California, Berkeley (MBA)
Hobbies: He is interested in hearing about the best book people have read recently.

From published sources — common ground for a warm intro.

Board director at StackHawk

Intro paths

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In turn, David can intro founders to StackHawk's investors below.

StackHawk's investors · 7

Costanoa VenturesSan Francisco · $500K – $8M checks · since 2025 Flybridge Capital PartnersNew York · $250K – $10M checks FoundryBoulder · $250K – $15M checks Matchstick VenturesMinneapolis · $500K – $1.5M checks · since 2020 Sapphire VenturesMenlo Park · $5M – $20M checks · since 2025 Skyview VenturesNashville Taronga Group

Co-founders at StackHawk

Joni KlippertCEO, Co-Founder

Scott GerlachCSO, Co-Founder

Bryce AmbraziunasExecutive Officer

Ryan SevernsExecutive Officer, Promoter

Board director at Medable

Intro paths

→

In turn, David can intro founders to Medable's investors below.

Medable's investors · 13

ACVC PartnersSilicon Valley Connectivity VenturesNew York GSR VenturesBeijing · $2.3M – $74M checks · since 2021 HealthX VenturesMadison Informed Ventures Advisors, LlcMenlo Park National Institutes of Health (NIH)Obvious VenturesSan Francisco · $250K – $6M checks PROOFArlington Sapphire VenturesMenlo Park · $5M – $20M checks · since 2020 Streamlined VenturesPalo Alto · $100K – $1M checks Tiger Global ManagementNew York · $1M – $100M checks · since 2021 TMC Venture FundHouston WTIPortola Valley · since 2021

Co-founders at Medable

Michelle LongmireFounder

Timothy R. SmithExecutive Officer, Director

Experience

359 CapitalPartnercurrent2022 — present
Sapphire VenturesCo-Founder & Operating Partnercurrent2025 — present
Sapphire VenturesCo Founder & Managing Directorcurrent2006 — present
BounceBoard Membercurrent2024 — present
FizzBoard Membercurrent2025 — present
StackHawkBoard Membercurrent2020 — present

Skills & more

Python for Everybody Specialization — Coursera

From David's professional profile.

Deals · 2

MedableBoard seat

via Sapphire Ventures · filed Nov 2020 · $93.6M raise

Brightfield Holdings, Inc.Board seat

via Sapphire Ventures · filed Sep 2019 · $118.8M raise

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

Other disclosed investments

Led

IexSword HealthYugabyte

Board seats

Brightfield LeanData StackHawk StackHawk

Investor

AlfrescoDatriaFitbitLivongo HealthLooker Ondeck CapitalTicketfly

Sources: curated public sources · the firm's website · SEC Form D filings.

Colleagues at 359 Capital

Joshua Gilbert

Investor at TMV Logistics

Mackenzie Chapman

Investor at Battery Ventures

Rico Mallozzi

Vice President at Sapphire Ventures

Network8

Vinod KhoslaScout

Founder of Khosla Ventures

Ilya FushmanScout

Partner at KPCB

Niko BonatsosScout

Founder and Managing Partner of Verdict

Abigail Johnson

Partner, Chief Operating Officer at Sapphire Ventures

Adrian Kania

Senior Associate at Sapphire Ventures

Alex Lehman

Vice President at Sapphire Ventures

Anders Ranum

Partner at Sapphire Ventures

Brian Melton

Partner at Tenaya Capital

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

Frequently asked questions

Who is David Hartwig?: Co-founder and partner at Sapphire Ventures (joined 2006) and a partner at 359 Capital, with over 20 years in venture capital. A generalist technology investor focused on applied AI, B2B software, digital health, gaming, and marketplaces, currently serving on the boards of Brightfield, LeanData, Medable, and StackHawk. Previously worked at Deloitte Consulting and Battery Ventures; holds a BSE from Princeton and an MBA from UC Berkeley.
Where does David Hartwig work?: David Hartwig is Partner at 359 Capital and Board director at StackHawk and Board director at Medable.
What does David Hartwig invest in?: David Hartwig invests in AI & Machine Learning, Cloud Computing, Consumer, Data & Infrastructure, Digital Health.
What check size does David Hartwig write?: David Hartwig typically writes checks of $10M – $100M.
What boards does David Hartwig sit on?: David Hartwig holds tracked board seats at Brightfield, Brightfield Holdings, Inc., LeanData, Medable, Medable, StackHawk, StackHawk.
What companies has David Hartwig invested in?: Investments tracked here include Iex, Sword Health, Yugabyte, Alfresco, Datria, Fitbit, Livongo Health, Looker, Ondeck Capital, Ticketfly.
Where did David Hartwig go to school?: David Hartwig studied at Princeton University (Bachelor of Engineering - BE, Operations Research); University of California, Berkeley, Haas School of Business (Master of Business Administration (MBA)).
Does David Hartwig lead rounds?: Yes — David Hartwig has led 3 tracked investments.