J2 Ventures Advisors, LLC
SEC exempt reporting adviser (venture capital exemption).
- Website
- https://www.j2vp.com/
- HQ
- MA
J2 Ventures Advisors invests in early-stage companies across advanced computing, biomedical engineering, cybersecurity, and infrastructure. Its team includes co-founders Alexander Harstrick and Jonathan Bronson, both Managing Partners, along with partners Christine Keung and Matthew Goldman. Portfolio companies include Aalyria, Femtosense, and Tasso.
01 · Says / Does
| Tag | Says | Does |
|---|---|---|
| Stages | Not stated | Not enough dated deals |
| Sectors | Cybersecurity, Medical devices | Not enough dated deals |
| Regions | Not stated | Not enough dated deals |
Says: what the firm's funds state. Does: from 0 dated deals in the last 24 months.
02 · Fund history
| Fund | Year | Size | Status |
|---|---|---|---|
| J2 Ventures Brookhaven Fund, L.P. J2 Ventures invests in early-stage companies pioneering technologies across advanced computing, biomedical engineering, cybersecurity, and infrastructure. The firm says it works closely with founders as an integrated part of their team. Inferred from the firm's website | approx. 2025 | $250M (Form D) | Raising |
| J2 Ventures Argonne Fund (A), L.P. J2 Ventures invests in early-stage companies pioneering technologies across advanced computing, biomedical engineering, cybersecurity, and infrastructure. The firm says it works closely with founders as an integrated part of their team. Inferred from the firm's website | approx. 2023 | $120M (Form D) | Open, writing first checks |
| J2 Ventures Argonne Fund, L.P. J2 Ventures invests in early-stage companies pioneering technologies across advanced computing, biomedical engineering, cybersecurity, and infrastructure. The firm says it works closely with founders as an integrated part of their team. Inferred from the firm's website | approx. 2023 | $120M (Form D) | Open, writing first checks |
| J2 Ventures Fund 2, LP | 2021 | $26.3M to $67.5M (Form D and SEC adviser filing) | Follow-ons only |
03 · People across funds
- Jonathan Bronson, Managing Partner, Co-Founder
J2 Ventures Brookhaven Fund, L.P. (Named on Form D); J2 Ventures Argonne Fund (A), L.P. (Named on Form D); J2 Ventures Argonne Fund, L.P. (Named on Form D); J2 Ventures Fund 2, LP (Named on Form D)
- Michael Harstrick, Manager of the General Partner of the Issuer
J2 Ventures Brookhaven Fund, L.P. (Named on Form D); J2 Ventures Argonne Fund (A), L.P. (Named on Form D); J2 Ventures Argonne Fund, L.P. (Named on Form D); J2 Ventures Fund 2, LP (Named on Form D)
- Aashka Dave, Investor
J2 Ventures Brookhaven Fund, L.P. (Team); J2 Ventures Argonne Fund (A), L.P. (Team); J2 Ventures Argonne Fund, L.P. (Team); J2 Ventures Fund 2, LP (Team)
- Adam Briley, Director of Federal Solutions
J2 Ventures Brookhaven Fund, L.P. (Team); J2 Ventures Argonne Fund (A), L.P. (Team); J2 Ventures Argonne Fund, L.P. (Team); J2 Ventures Fund 2, LP (Team)
- Alexander Harstrick, Managing Partner, Co-Founder
J2 Ventures Brookhaven Fund, L.P. (Team); J2 Ventures Argonne Fund (A), L.P. (Team); J2 Ventures Argonne Fund, L.P. (Team); J2 Ventures Fund 2, LP (Team)
- Christine Keung, Partner
J2 Ventures Brookhaven Fund, L.P. (Team); J2 Ventures Argonne Fund (A), L.P. (Team); J2 Ventures Argonne Fund, L.P. (Team); J2 Ventures Fund 2, LP (Team)
- Matthew Goldman, Partner
J2 Ventures Brookhaven Fund, L.P. (Team); J2 Ventures Argonne Fund (A), L.P. (Team); J2 Ventures Argonne Fund, L.P. (Team); J2 Ventures Fund 2, LP (Team)
04 · Recent deals
No dated deals found yet.
05 · Latest from the firm
No news from the firm's website yet.
06 · Sources
- https://www.j2vp.com/
- https://www.j2vp.com/insights/how-america-lost-its-global-connectivity-lead-and-why-the-future-depends-on-getting-it-back
- https://www.j2vp.com/companies
- https://www.j2vp.com/team
Fund dates and sizes are from SEC Form D filings.
Last verified: Oct 28, 2026