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Cybersecurity company Tenzai raises $75M in a Seed round led by Battery Ventures and Greylock Partners to build AI-driven hacker simulations.

PRIVATENov 11, 2025

Amount Raised

$75 Million

Round Type

Seed

Tel AvivArtificial IntelligenceCyber SecurityMachine Learningcomputer & network security

Investors

GreylockLux CapitalSwish VenturesJibe VenturesBattery Ventures

Description

Tenzai, founded by veterans of Guardicore, has secured $75 million in a Seed round to advance its AI-powered cybersecurity solutions. The funding, spearheaded by Battery Ventures and Greylock Partners, aims to enhance product development and recruit top talent. Tenzai's innovative platform replicates hacker techniques to proactively identify system vulnerabilities. The company plans to launch its offerings early next year.

Quick answer

Tenzai raised $75 Million in a Seed round, dated November 11, 2025. Investors: Greylock, Lux Capital, Swish Ventures, Jibe Ventures and Battery Ventures. Tenzai is based in Tel Aviv, Tel Aviv District, Israel.

How much did Tenzai raise?
Tenzai raised $75 Million in a Seed round on November 11, 2025.
Who invested in Tenzai?
Greylock, Lux Capital, Swish Ventures, Jibe Ventures and Battery Ventures are named as investors in this round.
What does Tenzai do?
Tenzai is a cybersecurity company founded by veterans of Guardicore, focused on building an AI platform that simulates a hacker to proactively identify and attack vulnerabilities in organizational systems.
Where is Tenzai based and how big is it?
Tenzai is based in Tel Aviv, Tel Aviv District, Israel. Fundz records about 3 employees.
Who are the decision-makers at Tenzai?
Fundz holds 2 contacts at Tenzai, including the Chief Executive Officer. Names and contact details are shown to Fundz members.

Source: Fundz verified event record.

Who else raised in Cyber Security and computer & network security around the same time

Companies in the same sectors as Tenzai that raised within 45 days of this round, from Fundz verified event records.

  • Cursor raised $2.3B (Funding Round) on November 13, 2025.
  • Gambit Cyber raised $3.4M (Seed) on December 17, 2025.
  • Adaptive Security raised $81M (Series B) on December 16, 2025.
  • Social Links raised $3M (Funding Round) on November 24, 2025.
  • Truffle Security raised $25M (Series B) on November 6, 2025.
  • Daylight Security raised $33M (Funding Round) on November 4, 2025.

Who to call at Tenzai, and when

A new round usually means Tenzai is about to hire and buy. The teams that reach out first get the meeting.

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Company Information

Company

Tenzai

Location

Tel Aviv, Tel Aviv District, Israel

About

Tenzai is a cybersecurity company founded by veterans of Guardicore, focused on building an AI platform that simulates a hacker to proactively identify and attack vulnerabilities in organizational systems. The company aims to revolutionize the penetration testing market, which is currently heavily reliant on human experts, by offering a continuous and automated alternative. By leveraging AI, Tenzai seeks to provide organizations with regular and thorough security assessments. The company plans to begin selling its product early next year.

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Fundz sees it the moment Tenzai raises, hires an exec or expands, usually minutes after it happens, and tells you who to reach.

Related People

2 contacts
Verified contactsPavel G., Chief Executive Officer hidden hidden hiddenSee plans and pricing
Predictive Intelligence
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Tenzai raised. Fundz records a round at a median of 3.6 minutes from the SEC filing, with the decision-maker attached.

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