Last updated 2026-07-21
- Acquired by Tenable for $105M, May 2025
- Raised $7M Seed round led by Sequoia Capital, Apr 2024
Total raised
$7.0M
Last: Undisclosed Round 2024-05
Stage
Acquired
Founded
2023
Headcount
26
HQ
Tel Aviv-Yafo, Israel
Sector
Cyber Security
About
Apex Security developed a specialized cybersecurity platform designed to protect enterprise organizations utilizing generative artificial intelligence and large language models. The platform provides real-time detection, investigation, and response to cyberattacks targeting AI platforms, enabling companies to define how AI is used and enforce security policies. It detects attacks and suspicious activity like prompt injection and jailbreaking, offering deep context and actionable recommendations. The company's agentless platform delivers real-time visibility into AI usage across various tools like ChatGPT, Microsoft Copilot, Google Gemini, and custom AI applications, while enforcing compliance, detecting threats such as data leakage, and centralizing access management.
Funding history · 1 round · $7.0M total
2024-04
Seed
$7.0M
★ Sequoia CapitalSam AltmanCerca PartnersIndex Ventures
Headcount over time
From 45 (2024-03) to 28 (2026-03) · -17 (-38%) · 8 points · source: Finder history + radar grounding
Q&A
- What is Apex Security's primary focus?
- Apex Security specializes in real-time detection, investigation, and response to cyberattacks targeting AI platforms, including AI models, applications, and large language models (LLMs).
- When was Apex Security founded?
- Apex Security was founded in April 2023.
- What is the current status of Apex Security?
- Apex Security was acquired by Tenable in May 2025.
- How much funding has Apex Security raised in total?
- Apex Security has raised a total of $7,000,000.
- When was Apex Security's last funding round and who were the lead investors?
- Apex Security's last funding round was in May 2024, with Sequoia Capital as a lead investor.
- What is Apex Security's employee count?
- Apex Security has an employee count in the 11-50 range.
- Who are the co-founders of Apex Security?
- The co-founders of Apex Security are Matan Derman (Co-founder & CEO) and Tomer Avni (Co-founder & CPO).
- What sector does Apex Security primarily operate in?
- Apex Security's primary sector is Cyber Security.
Team · 2
Sectors & technology
Primary sector
Cyber Security
Sub-sectors
Cyber SecurityApplication & Website Security
Technologies
Artificial IntelligenceGenerative AI
Target customers
Enterprise & Professional ServicesEnterprises
Business model
B2B
Tags
artificial-intelligencecyber-security
Full data — links, identifiers, deals & radar signals (jobs, patents, research, more)
External links
| Website | tenable.com/products/ai-exposure |
|---|---|
| linkedin.com/company/102439338 |
Identifiers & details
| Legal name | APEX SECURITY LIMITED |
|---|---|
| Founded | 2023-4 |
| Employees (exact) | 26 |
| Status reason | Acquired by Tenable on May, 2025 |
Acquisitions & public offerings
Acquired by Tenable 2025-05 $105.0M
Radar intelligence
Open jobs — greenhouse
| Total open | 52 |
|---|---|
| Remote | 19 |
| By department | Territory Management (6), Research (1), Engineering (8), Sales Development (4), Commercial Sales (3), Technical Support (5), Customer Success (1), Business Development (1), Product Management (2), QA Engineering (2), Security Engineering (4), Legal Counsel (1), General HR (1), Product Marketing (1), Channel Sales (2), Localization (2), Technical Alliances (2), Enterprise Security Engineering (1), Business Systems (P) (1), Marketing & Communications (1) |
| By location | Brazil - São Paulo - Remote (1), Israel - Office - Tel Aviv (11), South Africa - Remote (1), US - Remote (1), Australia - Office - Sydney (2), US - Remote - Massachusetts - Boston , US - Headquarters - Maryland - Columbia (1), Mexico - Remote (1), MA - Boston - Office , US - Headquarters - Maryland - Columbia (3), Germany - Remote (1), Sweden - Remote (1), US - Remote - Washington, US - Remote - Oregon, US - Remote - California , US - Remote - Arizona (1), Singapore - Office - Suntec City (2) |
| Title | Location | Department |
|---|---|---|
| Named Account Manager | Brazil - São Paulo - Remote | Territory Management |
| Senior Security Researcher | Israel - Office - Tel Aviv | Research |
| Territory Account Manager | South Africa - Remote | Territory Management |
| Senior Software Engineer - OT | Israel - Office - Tel Aviv | Engineering |
| Fullstack Engineer (Frontend Oriented, Angular) – OT | Israel - Office - Tel Aviv | Engineering |
| Staff Software Engineer | US - Remote | Engineering |
| Sales Development Representative | Australia - Office - Sydney | Sales Development |
| Commercial Territory Manager | US - Remote - Massachusetts - Boston , US - Headquarters - Maryland - Columbia | Commercial Sales |
| Technical Support Engineer – Bilingual English/Spanish – Remote (Mexico) | Mexico - Remote | Technical Support |
| Senior Customer Success Manager - Federal | MA - Boston - Office , US - Headquarters - Maryland - Columbia | Customer Success |
| Business Development Manager – GSIs & Advisories (DACH) | Germany - Remote | Business Development |
| Staff AI Engineer, Innovation - Office of the CTO | Israel - Office - Tel Aviv | Engineering |
Patents
| EPO | 4 |
|---|
GitHub
| Top repos | terrascan, poc, routeros, awesome-llm-cybersecurity-tools, pyTenable |
|---|
Web history (Wayback)
| Domain | tenable.com |
|---|
Certificate / subdomain footprint
| Subdomains | 200 |
|---|
Israeli Companies Registrar (רשם החברות / ICA)
| Registrar # (ח.פ.) | 516800216 |
|---|---|
| Status | מחוסלת עקב מיזוג — CLOSED |
| Corp type | ישראלית חברה פרטית |
| Incorporated | 2023-04-25 |
| Purpose | לעסוק בכל עיסוק חוקי |
| Liability | מוגבלת |
| In violation (unfiled) | no |
| Last annual report | 2025 |
| Active charges / liens | 0 |
| Registry events | 7 — people (1), merger (1), annual_report (4), other (1) |
| Registered address | דה וינצ'י לאונרדו 2 תל אביב - יפו |
Recent registry events
| Date | Event |
|---|---|
| 2025-07-30 | עדכון בעלי תפקידים |
| 2026-01-28 | מיזוג מרצון חברת יעד |
| 2025-11-11 | דו~ח שנתי-הסרת בעל תפקיד |
| 2025-11-11 | דו~ח שנתי-הקצאת מניות |
| 2025-11-11 | דו~ח שנתי-עדכון בעלי מניות |
| 2025-11-11 | דו~ח שנתי-עדכון מען דיגיטלי |
| 2025-08-11 | עדכון כתובת ו/או מען דיגיטלי |