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Brian Rosenzweig headshot

Brian Rosenzweig

Unclaimed
Co-Founder & Partner, Joule VenturesJoule VenturesNew York, NY

Current Firm

Joule Ventures

Focus

Enterprise, Cybersecurity

About Brian Rosenzweig

Brian is a bi-cultural operator-investor who was born and educated in the U.S. but spent most of his career embedded in Israel's innovation ecosystem, giving him hands-on experience helping Israeli founding teams with product-market fit and North American go-to-market strategies. Before co-founding Joule, he served as Director of Marketing at New York-based venture fund 21Ventures while living in Israel, where he designed and executed market entry strategies for 45+ portfolio companies—an unusual role where he functioned as a go-to-market strategist for an entire fund's portfolio rather than a single startup.

Focus Areas

Investment Stage

Pre-Seed
Seed
Series A
Series B+

Other Investors at Joule Ventures

Daniel Frankenstein headshot
Daniel Frankenstein

Co-Founder & Partner, Joule Ventures

Joule Ventures

View full team →

Investment Profile

Brian Rosenzweig is a Co-Founder & Partner, Joule Ventures at Joule Ventures, based in New York, NY.

Brian's investment focus spans Enterprise, Cybersecurity, AI, Fintech, SaaS, primarily investing at the Pre-Seed, Seed, Series A, Series B+ stages. This specialization allows for deep domain knowledge and strong network effects that benefit portfolio companies.

Frequently Asked Questions

Who is Brian Rosenzweig?

Brian Rosenzweig is a Co-Founder & Partner, Joule Ventures at Joule Ventures, based in New York, NY. Their investment focus includes Enterprise, Cybersecurity, AI.

What does Brian Rosenzweig invest in?

Brian Rosenzweig focuses on investments in Enterprise, Cybersecurity, AI, Fintech, SaaS through Joule Ventures. These focus areas reflect their domain expertise and the types of startups they actively seek to back.

What firm is Brian Rosenzweig at?

Brian Rosenzweig is currently at Joule Ventures, headquartered in New York, NY, serving as Co-Founder & Partner, Joule Ventures.

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