Surtr Defense Systems
YC X26San 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
Founders & leadership· Y Combinator alumni (X26)
Surtr Defense Systems was founded in 2026 by Anshul Ahluwalia and Cameron Fiore.


Investors · 8
How we know: Streamlined Ventures's portfolio page · Y Combinator's founder network · Not right? Tell us
How we know: the Y Combinator directory · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
Funding
SEC filings, press & company announcements$5M disclosed across 1 round · 2026
- $5MSeedJul 2026Source ↗
Source: company announcements and press reports — follow each round's link for the claim.
Legal entities · 1
corporate structureIn 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.



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