Leonard Speiser
InvestorManaging Partner at Horizon 3 Venture Studio
San Francisco, California
Writes $100K – $5M checks · typically $2M
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You →Tim · together at Trinity Ventures (2009) →Leonard
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Experience
- LambdaChief Operating Officercurrent2025 — presentSan Francisco Bay Area
- Horizon 3Founder & Managing Partnercurrent2020 — presentLos Altos, California, United States
- LevelBoard Director & Co-Founder2017 — 2020San Francisco Bay Area
- neuron.vcInvestor2016 — 2019San Francisco Bay Area
- CloverCo-Founder2010 — 2017Mountain View, CA
- SocietyCo-Founder2009 — 2010San Francisco Bay Area
- Trinity VenturesEntrepreneur-in-residence2009San Francisco Bay Area
- YahooSenior Director, Product2007 — 2009San Francisco Bay Area
- Bix.com, Inc.Co-Founder & Director, Product2006 — 2009San Francisco Bay Area
- eBayGroup Product Manager2000 — 2005San Francisco Bay Area
- PinacusFounder, CEO1999 — 2000San Francisco Bay Area
- IntuitManager, Business Development1998 — 1999San Francisco Bay Area
- CSFB Technology GroupAssociate/Analyst1996 — 1998Greater Boston
- ScreenFIREFounder, CEO1996 — 1998Greater Boston
Skills & more
+12 more
SEMConsumer InternetGo-to-market StrategyEntrepreneurshipDigital MediaMobile MarketingStrategic PartnershipsOnline MarketingBusiness StrategyScalabilityPublic SpeakingStrategyFrom Leonard's professional profile.
Investments
Investor
AsideMobagel
Per curated public sources.
Frequently asked questions
- Who is Leonard Speiser?
- Managing Partner at Horizon 3 Venture Studio
- Where does Leonard Speiser work?
- Leonard Speiser is Managing Partner at Horizon 3 Venture Studio.
- What check size does Leonard Speiser write?
- Leonard Speiser typically writes checks of $100K – $5M.
- What companies has Leonard Speiser invested in?
- Investments tracked here include Aside, Mobagel.
- Where did Leonard Speiser go to school?
- Leonard Speiser studied at Massachusetts Institute of Technology (S.B., Course 11 - Urban Planning); Chaparral High School; Phoenix Country Day School.
Same school
Also attended Massachusetts Institute of Technology2,000
+ 1,994 more
Shared employers
Also worked at Lambda17
+ 11 more
Also worked at Level1
Also worked at Clover4
Also worked at Yahoo551
+ 545 more

































