Tenzai Secures $75 Million Seed Funding Led By Greylock Partners And Lux Capital

Israel-based cybersecurity startup Tenzai, founded by Pavel Gurvich, Ariel Zeitlin, Ofri Ziv, Itamar Tal, and Aner Mazur, emerged from stealth with a $75 million seed round led by Greylock Partners, Lux Capital, and Battery Ventures, valuing the company at $330 million. Founded less than six months ago, Tenzai builds AI agents using models from Anthropic and OpenAI to identify and exploit software vulnerabilities with “nation-grade offensive capabilities,” helping enterprises create “unbreakable code.” The team—veterans of Israeli intelligence and former founders of Guardicore—aims to position Tenzai as a next-generation cybersecurity firm competing with major consultancies like Deloitte and PwC.

FOUNDERS: Pavel Gurvich, Ariel Zeitlin, Ofri Ziv, Itamar Tal & Aner Mazur

INVESTORS: Greylock Partners, Lux Capital & Battery Ventures

ROUND: Seed AMOUNT: $75,000,000 VALUATION: $330,000,000

HQ: #SanRamon #California

#VentureCapital #Tenzai #GreylockPartners #LuxCapital #BatteryVentures #PavelGurvich #ArielZeitlin #OfriZiv #ItamarTal #AnerMazur #TradedVC