Investor profile
Justin Barstein
Family Office, Fund of funds, Private equity & Managing Director at Invus
Justin Barstein works as a Managing Director at Invus. The firm's known portfolio counts 19 companies.
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Investment focus
Contacts
Affiliated funds' portfolios
Managing Director at Invus, whose known portfolio counts 19 companies
- Rain
- Parabilis Medicines
- Mirador Therapeutics
- Doctolib
- Ray Therapeutics
- Solid Biosciences
- Egetis Therapeutics
- GenSight Biologics
- MedinCell
- Zenflow
- Flexiv
- Vinted
- and 7 more
Investor Profile
The listing covers sectors AI, Commerce, Consumer and Education, and focus areas Analytics, Biotech, Crypto and Cybersecurity. Startups operating in these areas may find Justin Barstein relevant.
Invus appears in Growth, Late-Stage and Seed rounds across its known deals.
What the affiliated firm has backed is the closest available signal on whether Justin Barstein is worth approaching.
Colleagues at Invus
Showing 20 of 21
Evren Bilimer
Managing Director
New York, United States
Carl Philipp Claussen
Investor
France
Luc Ta-Ngoc
Managing Director
Paris, France
Chris Sobecki
Managing Director
Jackson, United States
Michael Dubin
Director
New York, United States
David Nielsen
Director
New York, United States
Mario Kaloustian
Managing Director
Paris, France
Aflalo Guimaraes
Managing Director
New York, United States
Clare Joyce
Managing Director
London, United Kingdom
Benjamin Felt
Managing Director
New York, United States
Jimmy Jun Wu
Director
Singapore
Jonas Fajgenbaum
Managing Director
New York, United States
Veronica Li
Investment Director
Hong Kong
Julien Miara
Managing Director
Paris, France
Ben Tsai
Partner
New York, United States
David Kahane
Partner
New York, United States
Cynthia Z.
Investor
New York, United States
Gokul Mukunda
Investor
New York, United States
Benedetto Staccia
Managing Director
Paris, France
Jeremy Yi
Investor
New York, United States
Frequently asked questions
Who is Justin Barstein?
Justin Barstein is a family office investor and fund of funds investor based in New York, United States, listed as Managing Director at Invus. The known portfolio of that firm counts 19 companies. That portfolio belongs to the firm, not to Justin Barstein personally.
What does Justin Barstein invest in?
Listed sectors include AI, Commerce, Consumer and Education; listed focus areas include Analytics, Biotech, Crypto and Cybersecurity. Those tags come from the portfolios of the firms this profile is attached to, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Justin Barstein invest at?
Invus appears in Growth, Late-Stage and Seed rounds across its known deals, and Justin Barstein is listed there as Managing Director. 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 Justin Barstein listed at?
Justin Barstein is listed as Managing Director at Invus. 21 other people in the database share a firm with Justin Barstein.
How do I contact Justin Barstein?
An email address, a phone number and a LinkedIn page are on file for Justin Barstein. 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