# Surtr Defense Systems

> Surtr Defense Systems builds ParallaxOS, a hardware-agnostic operating system for drone defense. It ingests data from any radar, RF detector, camera, or acoustic array, fuses it into a single common operating picture, applies AI threat classification, and passes human-authorized engagement recommendations to any effector. Founded in 2026 by two former Shield AI and Anduril autonomy engineers, the company is a Y Combinator Spring 2026 (P26) startup that raised roughly $4.8M in seed funding and field-tested its system with Ukraine's Brave1 defense cluster.

- **Founded:** 2026
- **Headquarters:** San Francisco, California, United States
- **Founders:** Anshul Ahluwalia (Co-founder & CEO), Cameron Fiore (Co-founder)
- **Team size:** 2-3
- **Products:** ParallaxOS
- **Notable:** Selected for Y Combinator Spring 2026 (P26) batch, Raised approximately $4.8M in seed funding within months of founding, Field-tested ParallaxOS with Ukraine's Brave1 in Kyiv (May-June 2026)

## Products & services

- **ParallaxOS** — A hardware-agnostic operating system for counter-UAS. It runs on an edge compute unit and ingests data from any radar, RF detector, camera, or acoustic array, performs multi-sensor fusion and autonomous track correlation, applies AI-driven threat classification, and produces human-authorized engagement recommendations that can be passed to any effector. Modular architecture is compatible with existing command-and-control platforms. Demonstrated sub-100ms latency fusing acoustic and optical data in Ukrainian field tests.

## Achievements

- Selected for Y Combinator Spring 2026 (P26) batch
- Raised approximately $4.8M in seed funding within months of founding
- Field-tested ParallaxOS with Ukraine's Brave1 in Kyiv (May-June 2026)
- Demonstrated sub-100ms sensor-fusion latency combining acoustic and optical data in field conditions
- Received formal feedback from Ukrainian military personnel indicating strong prototype maturity

## Latest updates

- **2026-07** — Announced roughly $4.8M seed round led by defense and tech investors to fund ITAR licensing, hiring, hardware procurement, and Pentagon program submissions.
- **2026-06** — Brave1 publicly disclosed results of Surtr's ParallaxOS FPV-drone detection tests in Ukraine, citing strong prototype maturity.
- **2026-05** — Conducted field tests of ParallaxOS in Kyiv through Ukraine's 'Test in Ukraine' program.
- **2026-04** — Participating in Y Combinator's Spring 2026 (P26) batch.

## Links

- Website: https://surtrdefense.com
- LinkedIn: https://www.linkedin.com/company/surtr-defense-systems
- Twitter/X: https://x.com/surtrdefense

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Profile page: https://yespress.io/surtr-defense-systems-yc-p26
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Last updated: 2026-07-30