J2 Ventures
J2 Ventures is a Boston-based venture capital firm investing in early-stage dual-use technology companies serving commercial and national-security markets. It led Arkenstone Defense's $35M seed round.
J2 Ventures is a Boston-based venture capital firm investing in early-stage dual-use technology — advanced computing, cybersecurity, biomedical engineering, and critical infrastructure — that serves both commercial markets and U.S. national security. It has raised three funds, most recently the oversubscribed $250M 'Brookhaven Fund,' and helps portfolio founders win SBIR/STTR awards and defense contracts alongside its equity investment.
Overview
- Firm
- J2 Ventures
- Headquarters
- Boston, MA
- Founded
- 0
- AUM
- $250M+ (Brookhaven Fund, most recent)
- Stages
- Seed, Series A
- Thesis
- Dual-use technology serving both commercial markets and U.S. national security — advanced computing, cybersecurity, biomedical engineering, and critical infrastructure; helps founders win SBIR/STTR awards and defense contracts alongside venture capital.
Portfolio companies2
- CompanyArkenstone DefenseArkenstone Defense sells commercial technology companies a ready-made government-contracting back office — workforce operations, HR, payroll, insurance, personnel security, contracting support, compliance, and accreditation — so they can sell to the U.S. government without building that operational infrastructure themselves. Its Foundation product handles FedRAMP/ATO/CMMC compliance and contract management; its Cohort product is a PEO for defense and dual-use companies.
- CompanyApex TechnologySatellite bus manufacturer building standardized spacecraft platforms at scale (also known as Apex Space).
Partners0
No linked records yet.
Frequently asked
- What is J2 Ventures?
- Dual-use technology serving both commercial markets and U.S. national security — advanced computing, cybersecurity, biomedical engineering, and critical infrastructure; helps founders win SBIR/STTR awards and defense contracts alongside venture capital.
- How much does J2 Ventures manage?
- J2 Ventures manages $250M+ (Brookhaven Fund, most recent) in assets.
- What stages does J2 Ventures invest at?
- J2 Ventures invests at Seed, Series A.
Sources & citations1
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