Tenzai, a Tel Aviv, Israel-based AI-native cybersecurity company, has launched with a $75 million Seed round.
Investors
The round was led by Greylock Partners, Battery Ventures, and Lux Capital, with participation from Swish Ventures and prominent angel investors.
Greylock is a venture capital firm founded in 1965 in Cambridge, Massachusetts, and now headquartered in Silicon Valley. With over $3.5 billion under management, the firm primarily focuses on early-stage investments (Seed and Series A) in transformative technology companies across consumer and enterprise sectors, with a current emphasis on AI-first applications, cybersecurity, and fintech.
Battery Ventures is a global investment firm specializing in technology-focused venture capital and private equity. Founded in 1983 in Boston, it invests across software, consumer technology, industrial technology, and life sciences. The firm provides capital and strategic support to companies at all stages—early, growth, and buyout—helping them scale globally. With offices in the U.S., Europe, and Israel, Battery Ventures has backed over 450 companies.
Lux Capital is a venture capital firm that invests in innovative, high-growth companies across sectors, including healthcare, technology, and energy. The firm focuses on funding disruptive technologies and visionary entrepreneurs shaping the future in industries such as AI, robotics, and life sciences.
Tenzai Use of Funds
The company will use the funding to expand its AI research and security teams, enhance autonomous offensive capabilities, and grow its go-to-market presence in North America and Europe.
About Tenzai
Founded by Pavel Gurvich, Ariel Zeitlin, Ofri Ziv, Itamar Tal, and Aner Mazur, Tenzai is an AI-native cybersecurity company building cutting-edge AI hackers to ensure enterprises deliver unbreakable code. It delivers agentic AI penetration testing, actively identifying, exploiting, and remediating complex vulnerabilities across enterprise software. Its platform continuously hacks, exploits, and helps fix vulnerabilities at scale. Headquartered in Tel Aviv, Israel, Tenzai empowers enterprises to move fast without compromising security by continuously testing and protecting applications in production.
Funding Details
Company: Tenzai, Inc.
Raised: $75.0M
Round: Seed
Funding Date: November 2025
Lead Investors: Greylock Partners, Battery Ventures, Lux Capital
Additional Investors: Swish Ventures, prominent angel investors
Company Website: https://www.tenzai.com/
Software Category: Cybersecurity / AI Penetration Testing
Source: https://www.accessnewswire.com/newsroom/en/computers-technology-and-internet/tenzai-raises-75-million-in-record-seed-round-to-build-an-ai-hack-1098240