/Companies

Surtr Defense Systems

YC X26

San Francisco, US · Founded 2026 · 2 employees · 8 known investors

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Surtr develops ParallaxOS, an open operating system for counter-unmanned aerial systems (counter-UAS) and command-and-control operations in Western defense. The platform integrates sensors and effectors from multiple hardware partners without proprietary lock-in, enabling real-time data fusion and AI-driven decision-making for military and defense operators.

Also known as Overwatch Systems · Overwatch Systems, Parallax · Parallax

Advanced ManufacturingAI & Machine LearningDefense TechUnited States of AmericaAmerica / Canada

Founders & leadership· Y Combinator alumni (X26)

Surtr Defense Systems was founded in 2026 by Anshul Ahluwalia and Cameron Fiore.

AAAnshul Ahluwalia
Anshul AhluwaliaCo-founder & CEOAnshul Ahluwalia previously worked as an autonomy engineer at Shield-AI and is now building command and control systems focused on counter-unmanned aircraft applications.
CFCameron Fiore
Cameron FioreCo-founder & CTOCameron Fiore worked as an autonomy engineer at Anduril and Shield AI on missile defense systems and robot teaming. He is now building an AI operating system for air defense at Surtr Defense Systems.

Investors · 8

Funding

SEC filings, press & company announcements

$5M disclosed across 1 round · 2026

Source: company announcements and press reports — follow each round's link for the claim.

Legal entities · 1

corporate structure
Surtr Defense Systems, Inc.

In the news

Frequently asked questions

What does Surtr Defense Systems do?
Surtr develops ParallaxOS, an open operating system for counter-unmanned aerial systems (counter-UAS) and command-and-control operations in Western defense. The platform integrates sensors and effectors from multiple hardware partners without proprietary lock-in, enabling real-time data fusion and AI-driven decision-making for military and defense operators.
Who founded Surtr Defense Systems?
Surtr Defense Systems was founded by Anshul Ahluwalia, Cameron Fiore in 2026.
Who are Surtr Defense Systems's investors?
Surtr Defense Systems's investors include Streamlined Ventures, Y Combinator, 645 Ventures, ALLEGIS CAPITAL, Andreessen Horowitz, Eniac Ventures, Gaingels, Robinhood.
How much funding has Surtr Defense Systems raised?
Surtr Defense Systems has disclosed $5M raised across 1 round.
Where is Surtr Defense Systems headquartered?
Surtr Defense Systems is headquartered in San Francisco, US.