J2 Ventures is a venture capital firm. Based in Boston, Massachusetts, United States. Among the 11 companies in the known portfolio are Oura, Code Metal, SkyFi, Flashpass, Musubi and Unit 221b.
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Investment focus
- Sector
- AIHardwareHealthcareSaaS
Who to pitch at J2 Ventures
J2 Ventures portfolio companies (11)
- Oura
- Code Metal
- SkyFi
- Flashpass
- Musubi
- Unit 221b
- Aalyria
- Phoenix Semiconductor
- Holly
- VectorWave
- LightSource
Co-investors
Funds that share portfolio companies with J2 Ventures.
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About J2 Ventures
The firm's listing covers sectors AI, Hardware, Healthcare and SaaS, and focus areas 3D Printing, Aerospace, Analytics and Cloud Infrastructure; known deals cluster at Pre-Seed, Seed and Series A.
The contacts to approach at J2 Ventures are Matt Goldman (General Partner), Alexander Harstrick (Managing Partner) and Jonathan Bronson (Managing Partner).
Across the known portfolio, 20 co-investors appear alongside J2 Ventures, including IronGate Capital Advisors, RTX and Bedford Ridge Capital.
Frequently asked questions
What is J2 Ventures?
J2 Ventures is a venture capital firm based in Boston, Massachusetts, United States, with a known portfolio of 11 companies. The portfolio comes from public investment records rather than from the firm, so deals that never surfaced publicly are not in it.
What does J2 Ventures invest in?
Listed sectors include AI, Hardware, Healthcare and SaaS; listed focus areas include 3D Printing, Aerospace, Analytics and Cloud Infrastructure. Those tags come from the portfolio attached to the firm, so they describe what has been backed rather than a stated mandate for what comes next.
What stage does J2 Ventures invest at?
The known deals of J2 Ventures include Pre-Seed, Seed and Series A rounds. Check that against your own round before reaching out: stage mismatch is the most common reason a well matched sector still goes nowhere.
Who should I pitch at J2 Ventures?
All 3 people on file at J2 Ventures are listed as contacts for the firm, each with their own profile page.
How do I contact J2 Ventures?
Any email address on file for the firm is masked on this page and readable inside RaiseHunt after you create an account. The 3 people attached to the firm have their own pages, each showing whether an address is on file for them.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal