Justin Rosner is a Partner at Battery Ventures, whose known portfolio counts 10 companies.
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Investment focus
Contacts
Affiliated funds' portfolios
Partner at Battery Ventures, whose known portfolio counts 10 companies
- Jump
- Baseten
- GenLogs
- Fundamental
- Mews
- Nexthop AI
- Letter AI
- Orkes
- SambaNova
- Aalyria
Investor Profile
Justin Rosner is listed against sectors AI, Commerce, Consumer and FinTech, and focus areas AI Infrastructure, Analytics, Cloud Infrastructure and Crypto in the database.
Stage-wise, the deals at Battery Ventures cluster around Growth, Series A and Series B rounds.
The firm portfolio and the focus above give founders context on whether Justin Rosner matches their raise.
Colleagues at Battery Ventures
Showing 20 of 42
Sudhee Chilappagari
Principal
San Francisco, United States
Dawit Workie
Vice President
Boston, United States
Brennan Lim
Incoming 2026 Venture Growth Summer Analyst
San Francisco, United States
Neeraj Agrawal
General Partner
Boston, United States
Dharmesh Thakker
General Partner
Menlo Park, United States
Shiran Shalev
Partner
Israel
Roland Anderson
Partner
Boston, United States
Dillon Joyce
Principal
San Francisco, United States
Russell Fleischer
General Partner
Fort Worth, United States
Collier Searle
Principal
New York City, United States
Chelsea Stoner
General Partner
San Francisco, United States
Morad Elhafed
General Partner
Boston, United States
Isabel von Stauffenberg
Venture Capital Investor
New York City, United States
Olivia Henkoff
Vice President
New York, United States
Roger Lee
General Partner
San Francisco, United States
Brandon Gleklen
Principal
New York, United States
Maximilian Jessen
Vice President
Boston, United States
Satoshi Harris-Koizumi
Partner
New York, United States
Aaron Neil
Vice President
San Francisco, United States
Jason Mendel
Investor
San Francisco, United States
Frequently asked questions
Who is Justin Rosner?
Justin Rosner is a private equity investor and venture capital investor based in Boston, Massachusetts, United States, listed as Partner at Battery Ventures. The known portfolio of that firm counts 10 companies. That portfolio belongs to the firm, not to Justin Rosner personally.
What does Justin Rosner invest in?
Listed sectors include AI, Commerce, Consumer and FinTech; listed focus areas include AI Infrastructure, Analytics, Cloud Infrastructure and Crypto. 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 Rosner invest at?
Battery Ventures appears in Growth, Series A and Series B rounds across its known deals, and Justin Rosner is listed there as Partner. 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 Rosner listed at?
Justin Rosner is listed as Partner at Battery Ventures. 42 other people in the database share a firm with Justin Rosner.
How do I contact Justin Rosner?
An email address, a phone number and a LinkedIn page are on file for Justin Rosner. 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