David Langer
InvestorFounderCo-founder & Board Member at Amphibian Capital · Founder and Managing Partner at LIONHEART VENTURES · Founder/CEO at Zesty · Founder & Managing Partner at Lionheart Ventures Visit Lionheart Ventures
San Francisco Bay Area
FoundedLionheart Ventures Visit Lionheart VenturesZesty · YC
Find your path to David
270 people in our graph share verified history with David — schools, employers, funds. One of them is your warm intro.
About
David Langer is the founder and managing partner of Lionheart Ventures, an early-stage venture capital firm. He previously founded and served as CEO of Zesty, a corporate catering company that raised over $20 million from investors including Index Ventures and Founders Fund before its acquisition by Square in 2018, and co-founded GroupSpare, a London-based SaaS platform for membership groups. Langer has invested as an angel in more than 20 companies and holds a mathematics degree from St Anne's College, Oxford.
Contact· self-published, not guessed
Founder/CEO at ZestyYC W14
Intro paths
David went through Y Combinator (Winter 2014) — any YC alum in your network can reach them through the YC community.
In turn, David can intro founders to Zesty's investors below.
Zesty's investors · 7
Co-founders at Zesty

Founder & Managing Partner at Lionheart Ventures Visit Lionheart Ventures
Intro paths
In turn, David can intro founders to Lionheart Ventures Visit Lionheart Ventures's investors below.
Lionheart Ventures Visit Lionheart Ventures's investors · 1
Experience
- Lionheart VenturesFounder & Managing Partnercurrent2018 — presentSan Francisco Bay Area
- Josi HealthInvestorcurrent2025 — present
- Gray Swan AIInvestorcurrent2025 — present
- NeuroBionicsInvestorcurrent2025 — present
- Lucid ComputingInvestorcurrent2025 — present
Skills & more
From David's professional profile.
Colleagues at Amphibian Capital
Frequently asked questions
- Who is David Langer?
- David Langer is the founder and managing partner of Lionheart Ventures, an early-stage venture capital firm. He previously founded and served as CEO of Zesty, a corporate catering company that raised over $20 million from investors including Index Ventures and Founders Fund before its acquisition by Square in 2018, and co-founded GroupSpare, a London-based SaaS platform for membership groups. Langer has invested as an angel in more than 20 companies and holds a mathematics degree from St Anne's College, Oxford.
- Where does David Langer work?
- David Langer is Founder & Managing Partner of Lionheart Ventures Visit Lionheart Ventures and Co-founder & Board Member at Amphibian Capital and Founder/CEO at Zesty.
- What companies did David Langer found?
- David Langer founded Lionheart Ventures Visit Lionheart Ventures, Zesty.
- Where did David Langer go to school?
- David Langer studied at University of Oxford (MA (Hons), Mathematics); Tiffin School.
Founder mafias
Y Combinator mafia10,230
Also came through, then founded or led a company.
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University of Oxford mafia622
Also came through, then founded or led a company.
+ 615 more
LIONHEART VENTURES mafia3
Also came through, then founded or led a company.
Gray Swan mafia2
Also came through, then founded or led a company.
Josi Health mafia2
Also came through, then founded or led a company.
Same school
Also attended University of Oxford1,752
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