Artemis

Summary active Updated Apr 17, 2026

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Location New York, New York
Founded 2025
Latest Stage Series A
Total Raised $70M
Sector
cybersecurity AI enterprise

Investors

Scott Banister Series A (2026)
Long Journey Ventures Series A (2026)

Founders

Shachar Hirshberg Co-Founder & CEO
Dan Shiebler Co-Founder & CTO

About

Artemis is a cybersecurity startup that emerged from stealth in April 2026, building an AI-native security operations platform that delivers real-time threat detection and automated response for AI-powered attacks 12. Founded in late 2025 by Shachar Hirshberg (who built AWS GuardDuty) and Dan Shiebler (who led AI/ML at Abnormal Security), the company raised $70 million in combined seed and Series A funding within six months of founding 1. Clients include Mercury, Wix, Lemonade, and Abnormal AI 1.

Funding History

Date Round Amount Lead Co-investors
2026-04-15 Seed + Series A $70M ($15M seed + $55M Series A) Felicis (Series A) First Round Capital, Brightmind, Theory VC, Lockstep 12

What Investors Say

“Every CISO our team spoke with at RSA this year echoed the same refrain: AI will change security more than the cloud did, and right now, none of them feel ready.” – Felicis, investment announcement blog post, April 2026 2

Felicis noted Artemis’s AI-native approach cuts “mean time to detect and respond to critical security events by 94%” compared to legacy tools 2.

What Founders Say

No verified founder quotes available at this time.

Sources

  1. Fortune, “Exclusive: Artemis raises $70M to help fight AI-powered attacks with AI,” April 15, 2026. https://fortune.com/2026/04/15/exclusive-artemis-raises-70m-to-help-fight-ai-powered-attacks-with-ai/↩↩↩↩

  2. Felicis, “Felicis’s Series A Investment in Artemis: The AI-Native SIEM,” April 2026. https://www.felicis.com/blog/artemis-series-a-security-gets-a-new-brain↩↩↩↩