Janvest Capital Partners

Joule Ventures, formerly Janvest Capital Partners, is a seed-stage venture fund specializing in Israeli startups commercializing enterprise-grade solutions for the U.S. market. Their notable investments include BioCatch, a leader in behavioral biometrics, and Coralogix, a provider of AI-driven log analytics. Joule's focus spans DevOps, cybersecurity, fintech, AI/ML, data enablement, and enterprise software. Geographically, they target startups in Israel with a strategic expansion to North America. The fund's strategy emphasizes a partner-only approach, providing founders with direct access to decision-makers and high-level resources from the initial engagement through to commercialization. Joule Ventures typically leads funding rounds and offers an average check size of $1M-$3M, demonstrating a strong commitment to early-stage startups. Key team members include Brian Rosenzweig in Atlanta, Dafna Winocur Biran in Tel Aviv, and Daniel Frankenstein in New York. Brian brings two decades of experience in Israel’s venture market, Dafna offers deep expertise in both Israeli and U.S. markets, and Daniel leverages his background in corporate advisory to support portfolio companies. Startups can approach Joule Ventures through their streamlined process, ensuring efficient support from the first interaction. Their offices in Tel Aviv, New York, and Atlanta facilitate a robust network and resource base for ambitious Israeli founders aiming to penetrate the U.S. enterprise market​.