Last updated 2026-08-07
- Raised $80M Series A led by Sequoia Capital, Sep 2025
Total raised
$80.0M
Last: A Round 2025-09
Stage
Series A
Founded
2023
Headcount
25
HQ
Tel Aviv, Israel
Sector
Cyber Security
About
Irregular is an Israeli frontier AI security lab based in Tel Aviv, founded in 2023. The company specializes in red teaming, safety evaluations, and misuse testing on advanced artificial intelligence models. It builds next-generation defenses through high-fidelity research platforms that simulate and monitor real-world AI security scenarios, identifying vulnerabilities prior to public deployment. Irregular works with leading AI labs like OpenAI, Anthropic, and Google DeepMind, as well as government agencies, to mitigate cybersecurity risks posed by advanced AI models and protect them from cyberattacks.
Funding history · 1 round · $80.0M total
2025-09
A Round
$80.0M
★ Sequoia Capital★ Redpoint VenturesSequoiaRedpointPitchdriveSFC CapitalOmri CasspiOfir EhrlichY CombinatorFounders FundSwish VenturesPareto HoldingsAssaf RappaportStephen PankhurstJodi Sherman JahicTEN Eleven VenturesDeepak Jeevan KumarDell Technologies Capital
Q&A
- What is Irregular's primary focus?
- Irregular is a frontier AI security lab that conducts red teaming, safety evaluations, and misuse testing on advanced artificial intelligence models.
- When was Irregular founded and where is it headquartered?
- Irregular was founded in November 2023 and is headquartered in Tel Aviv, Israel.
- How much funding has Irregular raised in total?
- Irregular has raised a total of $80,000,000 USD.
- Which investors participated in Irregular's Seed round?
- Irregular's Seed round in September 2025 included investments from Sequoia Capital.
- Who are the co-founders of Irregular?
- The co-founders of Irregular are Dan Lahav, who serves as Co-Founder & CEO, and Omer Nevo, who is the Co-Founder & CTO.
- What is Irregular's employee count?
- Irregular has 11-50 employees.
- What types of organizations does Irregular work with?
- Irregular works with leading AI labs such as OpenAI, Anthropic, and Google DeepMind, as well as government agencies.
- What is Irregular's current funding stage?
- Irregular is currently in its Series A funding stage.
Team · 4
Shaun Maguire
Partner at Sequoia Capital
Dean Meyer
Partner at Sequoia Capital
Sectors & technology
Primary sector
Cyber Security
Technologies
Target customers
Business model
B2BSecurity as a Service
Tags
ai-securitycybersecurityartificial-intelligencered-teamingsafety-evaluationsmisuse-testing
Full data — links, identifiers, deals & radar signals (jobs, patents, research, more)
External links
| Website | irregular.com |
|---|---|
| linkedin.com/company/irregular-ai |
Identifiers & details
| Founded | 2023-11 |
|---|---|
| Employees (exact) | 25 |
| Status reason | registrar: מחוסלת מרצון |