Surtr Defense Systems
Builds ParallaxOS, hardware-agnostic software that fuses radars, RF detectors, cameras and effectors into one counter-drone picture.
M-SHORAD air defense system on Germany's Baltic coast. Photo: U.S. Army photo by Maj. Robert Fellingham, Public domain (PD-USGov-Military-Army).
Funding history
| Date | Round | Amount |
|---|---|---|
| Jul 2026 | Seed | $4.8M |
Why it matters
Software tested with Ukraine's Brave1; approved for testing with the Point Defense Battle Lab in North Dakota.
Is Surtr Defense Systems publicly traded?
Surtr Defense Systems is privately held as of November 14, 2026: there is no ticker and no announced IPO. Shares are not available on public exchanges.
Information only, not investment advice.
Some figures rest on a single report. Treat them as indicative.Last verified November 14, 2026
Surtr Defense Systems: key questions
What does Surtr Defense Systems do?
Builds ParallaxOS, hardware-agnostic software that fuses radars, RF detectors, cameras and effectors into one counter-drone picture.
What does Surtr Defense Systems make?
Products named by Surtr Defense Systems include ParallaxOS.
Where is Surtr Defense Systems based?
Surtr Defense Systems is headquartered in San Francisco, California. It was founded in 2026.
How much funding has Surtr Defense Systems raised?
Total funding is ~$4.8M, based on announced and reported rounds. Latest round: Seed, $4.8M, Jul 2026.
Who are Surtr Defense Systems' investors?
Notable investors include Allegis Capital, Eniac Ventures, Gaingels, Robinhood Ventures, Streamlined Ventures, Y Combinator.
Is Surtr Defense Systems publicly traded?
Surtr Defense Systems is privately held as of November 14, 2026: there is no ticker and no announced IPO. Shares are not available on public exchanges.
Can you buy Surtr Defense Systems stock?
Not on a public exchange: Surtr Defense Systems is a private company. Shares of private companies change hands only in private transactions open to accredited investors, when the company allows it. This is not investment advice.
Sources
- tectonicdefense.com/?p=2092
- surtrdefense.com
- newmarketpitch.com/blogs/news/counter-uas-funding-analysis
Figures come from company announcements, government sources and press reports. Spot an error? Send a correction. Nothing here is investment advice.
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