Funded companies

Surtr Defense Systems

Hardware-agnostic common C2 for counter-UAS

🇺🇸 San Francisco · Industrials · Spring 2026

The hardware-agnostic operating system for drone defense

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Y Combinator

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About Surtr Defense Systems

Surtr Defense Systems is building the open operating system for counter-UAS. Today's defense ecosystem is fragmented. Sensors, effectors and software platforms are often built to operate in isolation, creating unnecessary complexity for operators in the field. ParallaxOS changes that. It connects existing systems into a single operating picture, making it easier to integrate new capabilities, share data and respond to evolving threats.

Founded by former engineers from Anduril and Shield AI, Surtr is focused on one thing: building software that makes defense systems work better together. We believe the future of defense belongs to open architectures, rapid integration and interoperable systems. Building defense technology to unite the West.

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Talent snapshot

Employee functions

Marketing2
Business Development2
Information Technology1
Arts and Design1

Employee locations

United States4
California, United States2
Anaheim, CA2
Los Angeles Metropolitan Area2
New Jersey, United States1
Long Valley, NJ1

Common skills

Python (Programming Language)CommunicationLeadershipC++Computer VisionOpenCVProblem SolvingComputational GeometryAlgorithmsComputer HardwareMATLABJava