J2 Ventures

J2 Ventures is a Boston-based venture capital firm specializing in early-stage investments in technology companies that advance both commercial markets and U.S. national security. The firm focuses on sectors such as advanced computing, biomedical engineering, cybersecurity, infrastructure, artificial intelligence, and healthcare. Their mission is to support innovators developing critical technologies that strengthen national security and societal well-being.

The firm's investment strategy emphasizes a disciplined approach, partnering only when they understand the product, the market, and how to help founders grow their business. They seek companies that align with their values and are committed to creating a brighter, safer, and healthier future. J2 Ventures prides itself on building strong relationships with founders, acting as integral team members, and leveraging their expertise to address challenges and drive mutual success.

J2 Ventures has a proven track record of strengthening both economic and national resilience by helping founders scale innovation with commercial reach and impact. Their portfolio includes companies like Oura, Aalyria, Codemetal, Apex Space, and Mesa Quantum, reflecting their commitment to advancing critical capabilities in health, infrastructure, and security. The firm has raised over $250 million in its oversubscribed Brookhaven Fund, underscoring the growing momentum behind its approach and the confidence investors place in its mission and performance.