What is Irregular's primary focus?

Irregular is an AI-security lab focused on protecting against next-generation AI threats by building advanced defenses through research platforms that simulate and monitor real-world AI security scenarios.

When was Irregular founded and by whom?

Irregular was founded in November 2023 by co-founders Dan Lahav and Omer Nevo.

What significant funding did Irregular receive?

In September 2025, Irregular raised $80 million in a funding round led by Sequoia Capital.

What recognition did Irregular receive in 2026?

In April 2026, Irregular was named Israel’s most promising startup in Calcalist’s annual Top 50 list, acknowledging its role in addressing the rapid evolution of artificial intelligence and its impact on security models.

What is Irregular's approach to AI security?

Irregular focuses on staying ahead of emerging threats and vulnerabilities in AI systems by developing next-generation defenses through high-fidelity research platforms that simulate and monitor real-world AI security scenarios, ensuring safe and secure deployment of these technologies.

Irregular

AI-security Lab for Next GenAI Threats

Cyber Security

Private

Company Overview

Snapshot

Founded in November 2023 by Dan Lahav and Omer Nevo, Irregular operates with 11–50 employees. The company has raised $80 million across one funding round from 3 investors, with Sequoia Capital and Redpoint Ventures leading its September 2025 Series A round.

Business overview

Irregular is a frontier security laboratory dedicated to safeguarding the world against advanced AI threats. The company develops next-generation defenses by creating high-fidelity research platforms that simulate and monitor real-world AI security scenarios. Focusing on staying ahead of emerging vulnerabilities, Irregular ensures the safe and secure deployment of transformative AI technologies for enterprises.

Strategic signal

In April 2026, Irregular was recognized as Israel’s most promising startup by Calcalist, highlighting its strategic importance in the rapidly evolving AI security landscape. This recognition, coupled with its collaborations with leading AI companies like Anthropic and OpenAI, signals strong market validation and a forward-looking approach to controlling AI's impact on existing security models.

Company Intelligence Q&A

What is Irregular's primary focus?: Irregular is an AI-security lab focused on protecting against next-generation AI threats by building advanced defenses through research platforms that simulate and monitor real-world AI security scenarios.
When was Irregular founded and by whom?: Irregular was founded in November 2023 by co-founders Dan Lahav and Omer Nevo.
What significant funding did Irregular receive?: In September 2025, Irregular raised $80 million in a funding round led by Sequoia Capital.
What recognition did Irregular receive in 2026?: In April 2026, Irregular was named Israel’s most promising startup in Calcalist’s annual Top 50 list, acknowledging its role in addressing the rapid evolution of artificial intelligence and its impact on security models.
What is Irregular's approach to AI security?: Irregular focuses on staying ahead of emerging threats and vulnerabilities in AI systems by developing next-generation defenses through high-fidelity research platforms that simulate and monitor real-world AI security scenarios, ensuring safe and secure deployment of these technologies.

Name	Irregular
One-liner	AI-security Lab for Next GenAI Threats
Type	Startup
Primary sector	Cyber Security
Founded	2023
Employees	11-50
Employees (exact)	31
HQ / location	Israel
Product stage	R&D
Website	https://www.irregular.com/
LinkedIn	https://www.linkedin.com/company/101418756

Sectors	Cyber Security, GRC & Vulnerability
Core technology	Artificial Intelligence
Target customers	Enterprise & Professional Services, Enterprises
Business models	B2B

Name	Role	Founder
Dan Lahav	Co-founder & CEO	yes
Omer Nevo	Co-founder & CTO	yes

Date	Source	Summary
Apr 21, 2026	www.calcalistech.com	Working with companies like Anthropic and OpenAI, Israeli startup Irregular, named Israel’s most promising startup in Calcalist’s annual Top 50 list, is betting that the rapid evolution of artificial intelligence will upend existing security models and reward those who can control it.
Feb 1, 2026	www.calcalistech.com	The Israeli cybersecurity firms show that AI agents excel when guided by humans but struggle to act independently, revealing a new hybrid threat model for enterprises.
Sep 16, 2025	techcrunch.com	Irregular raises $80 million to secure frontier AI models \| TechCrunch

Irregular