Investor profile
Lisa Kleinsorge
Angel, Operator angel & Angel Track Member, Mentor at First Round Capital, Venture Partner at LifeX Ventures
Lisa Kleinsorge is an angel investor and operator angel based in San Francisco, California, United States with 6 known investments: Twitter, Spotify, HeadSpin, treinta, Nearside and Mediengruppe RTL Deutschland.
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Investment focus
Contacts
Lisa Kleinsorge portfolio companies (6)
- Spotify
- HeadSpin
- treinta
- Nearside
- Mediengruppe RTL Deutschland
Affiliated funds' portfolios
Angel Track Member, Mentor at First Round Capital, whose known portfolio counts 18 companies
- Omni
- Artemis
- Drop
- Open
- Noon
- The Expert
- daydream Labs
- Maven
- Manifest OS
- Solidroad
- Steno
- Actively
- and 6 more
Venture Partner at LifeX Ventures, whose known portfolio counts 22 companies
- 0G
- MITO AI
- PAACK
- NoTraffic
- Mytra
- Fraction AI
- Keychain
- InfiniteWatch
- Ohai.ai
- Sully.ai
- Trek Health
- Pensero AI
- and 10 more
Investor Profile
The listing covers sectors AI, Consumer, FinTech and SaaS, and focus areas Business Intelligence, Data Analytics, Data Integration and Financial Education. Startups operating in these areas may find Lisa Kleinsorge relevant.
Stage-wise, the known deals cluster around Seed and Series A rounds.
Reviewing the investment history helps decide whether there is a realistic fit before reaching out.
Colleagues
Showing 20 of 27
Chris Fralic
Board Partner
Philadelphia, United States
Hayley Bay Barna
Partner
New York City, United States
Todd Jackson
Partner
San Francisco, United States
Rob Hayes
Partner
New York, United States
Josh Kopelman
Partner
Philadelphia, United States
Mandela SH
Angel Track
United States
Ashley Mayer
Angel Track
Brooklyn, United States
Liz Wessel
Partner
San Francisco, United States
Peter Kazanjy
Author
San Francisco, United States
Inaki Berenguer
Managing Partner
United States
Amol Sarva
Founder + investor
New York City, United States
Fabian Siegel
Venture Partner
Berlin, Germany
James C. Wu
AI Founder & Investor
San Francisco, United States
Carson Kahn
Angel Investor, Mentor (Fast Track)
San Francisco, United States
Brett Berson
Partner
San Francisco, United States
Michael Lombardi
Angel Track
Colorado Springs, United States
Sharrifah Lorenz
Angel Investor and Mentor
San Francisco, United States
Bill Trenchard
Partner
United States
Thaddeus Y.
Angel Track
Frisco, United States
Amy Fu
Vice President
New York, United States
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Frequently asked questions
Who is Lisa Kleinsorge?
Lisa Kleinsorge is an angel investor and operator angel based in San Francisco, California, United States with 6 known investments on file, among them Twitter, Spotify and HeadSpin. The sections above list the sectors, stages and firms attached to that record.
What does Lisa Kleinsorge invest in?
Listed sectors include AI, Consumer, FinTech and SaaS; listed focus areas include Business Intelligence, Data Analytics, Data Integration and Financial Education. Those tags come from the companies attached to this profile, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Lisa Kleinsorge invest at?
The known deals of Lisa Kleinsorge include Seed and Series A rounds. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
Which firm is Lisa Kleinsorge listed at?
Lisa Kleinsorge is listed as Venture Partner at LifeX Ventures. 27 other people in the database share a firm with Lisa Kleinsorge.
How do I contact Lisa Kleinsorge?
An email address, a phone number and a LinkedIn page are on file for Lisa Kleinsorge. The address stays masked on this page and is readable inside RaiseHunt after you create an account.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal