Apex Security

Real-time Detection, Investigation, and Response to Cyberattacks Targeting AI Platforms

Cyber Security
Acquired by Tenable on May, 2025

Company Overview

Snapshot

Founded in April 2023 by Matan Derman and Tomer Avni, Apex Security grew to 11–50 employees. The company raised $7 million across one funding round from four investors, with Sequoia Capital as a lead investor. Apex Security was acquired by Tenable in May 2025.

Business overview

Apex Security developed a security platform that offers comprehensive visibility into AI activity within organizations. This platform enables companies to define AI usage policies, enforce security standards, and detect and respond to AI-targeted cyberattacks. By adding a crucial security layer to AI models, applications, and large language models (LLMs), Apex Security helps organizations securely leverage cutting-edge AI technologies. The platform also includes a secure portal for interacting with organizational AI platforms, serving the Cyber Security sector, particularly in Application & Website Security, and targeting Enterprises with its B2B business model.

Strategic signal

In May 2025, Apex Security was acquired by Tenable for over $105 million. This acquisition highlights the increasing demand for specialized AI security solutions and validates Apex Security's technology in providing real-time detection and response to cyberattacks targeting AI platforms. For investors, this signals a strong market appetite for innovative cybersecurity firms focused on the emerging AI landscape, demonstrating a rapid and successful exit for a young company in a critical growth area.

Company Intelligence Q&A

What is Apex Security's primary focus?
Apex Security focuses on providing real-time detection, investigation, and response to cyberattacks specifically targeting AI platforms, including AI models, applications, and large language models (LLMs).
When was Apex Security founded?
Apex Security was founded in April 2023.
Who are the founders of Apex Security?
Apex Security was founded by Matan Derman, who serves as Co-founder & CEO, and Tomer Avni, Co-founder & CPO.
What was a significant recent event for Apex Security?
In May 2025, Apex Security was acquired by Tenable for over $105 million, according to news reports.
When did Apex Security raise its seed funding round?
In May 2024, Apex Security emerged from stealth with $7 million in seed funding. Sequoia Capital was a lead investor in this round.

External links