Tenzai
Tenzai is an AI cybersecurity startup that uses automated hacking tools to find and fix software vulnerabilities. It raised $75 million in seed funding in 2025, an unusually large amount for a pre-product company.
The growth story
Tenzai grew from 1 to 63 employees between 2024 and 2026, raising $75M along the way, most recently a Seed in November 2025.
About
Tenzai sells AI systems that automatically attack enterprise software to discover security flaws before hackers do. Its tools continuously probe codebases for weaknesses and suggest fixes, targeting security teams at large tech companies.
The company was founded in 2025 by cybersecurity veterans and has 63 employees. Its $75 million seed round from top-tier VCs suggests strong investor confidence in its technical approach, though no product details or customer traction are publicly available yet.
Founders and leadership
Engineering dominates with 9 reported roles, typical for an early-stage technical startup. The founding team includes multiple cybersecurity veterans but no public C-level hires beyond the founders.
The Tenzai org chart
Pavel Gurvich (Chief Executive Officer) leads 21 mapped leaders with 6 direct reports. Click +N to expand a team; names link to the person’s public profile.
Departments, and which ones grew
Headcount by function: Engineering 15 (+275% YoY), Sales 12 (+1100% YoY), Entrepreneurship 10 (+100% YoY), Information Technology 8 (+167% YoY), Business Development 5 (+25% YoY).
Talent flow
Nearly half the team comes from cybersecurity firms like Guardicore (17) and Akamai (15), with several from Israeli military intelligence units. Alumni have gone to tiny startups like GoScouter.
Most common previous employers of Tenzai staff: Guardicore (17), Akamai Technologies (15), Israel Defense Forces (7), Israeli Military Intelligence (5), Explorium (4), Snyk (4). Former Tenzai employees most often moved to tym® (1), GoScouter (1).
Web traffic
Traffic mix: 0% direct, 0% search, 0% social, 0% paid.
What this company is made of
Most common skills at Tenzai: Python (Programming Language) (21), Network Security (18), Software as a Service (SaaS) (18), Cloud Computing (17), Linux (16), Software Development (16), Cybersecurity (16), Management (14).
Where the team actually sits
Tenzai people are concentrated in Israel (18), Tel Aviv District, Israel (16), New York, United States (2), Greater Boston (2).
Search footprint
Tenzai attracts about 18 organic search visits a month. It gained 1 ranking keywords and lost 0 in the last period.
Frequently asked
Tenzai has 63 employees as of September 2026.
Tenzai has raised $75M in total, most recently a Seed round in November 2025.
Tenzai was founded in 2025 by Aner Mazur, Ofri Ziv, Itamar Tal.
Pavel Gurvich (Chief Executive Officer) sits at the top of Tenzai's reporting structure, with 6 direct reports.
The most common previous employers of current Tenzai staff are Guardicore (17 people), Akamai Technologies (15 people), Israel Defense Forces (7 people).
Former Tenzai employees most often move to tym® (1), GoScouter (1).
Tenzai attracts about 18 organic search visits a month.
The most common skills among Tenzai staff are Python (Programming Language), Network Security, Software as a Service (SaaS), Cloud Computing, Linux.
Tenzai staff are concentrated in Israel (18), Tel Aviv District, Israel (16), New York, United States (2).
Tenzai has about 15 people in Engineering, up 275% over the past year, as of September 2026.
Tenzai has about 12 people in Sales, up 1100% over the past year, as of September 2026.
Computed from 50 current and 5 former Tenzai profiles, as of September 2026. Source: Crustdata.
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