Koi

Company Overview

Snapshot

Founded in December 2024 by Amit Assaraf, Itay Kruk, and Idan Dardikman, Koi operates with 11–50 employees. The company raised a total of $48 million across two funding rounds from five investors. In February 2026, Koi was acquired by Palo Alto Networks.

Business overview

Koi provides an endpoint security platform designed to offer enterprises comprehensive visibility and control over all software components, including extensions, packages, applications, and AI models. The company's core technology helps security teams identify blind spots missed by traditional tools, enabling early risk detection, policy enforcement, and endpoint protection without hindering innovation. Koi operates within the Cyber Security sector, specifically focusing on Endpoint Security, and serves the business-to-business (B2B) market.

Strategic signal

In February 2026, Koi was acquired by Palo Alto Networks for an estimated $400 million, a significant exit for a company founded just over a year prior. This acquisition highlights the intense demand for advanced AI-driven cybersecurity solutions and validates Koi's innovative approach to endpoint security, particularly its use of large language models and AI agents to detect malware and vulnerabilities. The rapid acquisition by a major industry player like Palo Alto Networks signals strong market recognition of Koi's technology and its potential to strengthen AI and endpoint security offerings.

Company Intelligence Q&A

When was Koi acquired and by whom?

Koi was acquired by Palo Alto Networks in February 2026.

What was the estimated acquisition value of Koi?

The acquisition of Koi by Palo Alto Networks was estimated to be worth $400 million.

What was Koi's last funding round before the acquisition?

In September 2025, Koi raised an A Round from investors including Team8 and Battery Ventures.

What is Koi's primary technological focus?

Koi develops a software engine that utilizes large language models and AI agents to identify malware and vulnerabilities within applications, providing comprehensive endpoint security.

What legal challenge did Koi and Palo Alto Networks face post-acquisition?

In July 2026, Palo Alto Networks and Koi Security were sued over an alleged AI error in a cyber threat report.