Theseus
Makes a visual navigation system, hardware and software, that gives any military drone position and heading without GPS by matching camera views to map data.
Patriot air defense radar forward deployed in Poland, 2019. Photo: U.S. Army 10th AAMDC photo by Sgt. 1st Class Christopher Smith, Public domain (PD-USGov-Military-Army).
Funding history
| Date | Round | Amount |
|---|---|---|
| Apr 2025 | Seed | $4.3M |
Why it matters
Sold units to US special operations within six months of founding; completed a 564 km GPS-denied flight over Florida in March 2026.
Is Theseus publicly traded?
Theseus 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
Theseus: key questions
What does Theseus do?
Makes a visual navigation system, hardware and software, that gives any military drone position and heading without GPS by matching camera views to map data.
What does Theseus make?
Products named by Theseus include Visual Navigation System.
Where is Theseus based?
Theseus is headquartered in San Francisco, California. It was founded in 2024.
How much funding has Theseus raised?
Total funding is $4.3M, based on announced and reported rounds. Latest round: Seed, $4.3M, Apr 2025.
Who are Theseus' investors?
Notable investors include First Round Capital, Y Combinator, Lux Capital.
Is Theseus publicly traded?
Theseus 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 Theseus stock?
Not on a public exchange: Theseus 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
- techcrunch.com/2025/04/17/defense-tech-theseus-landed-y-combinator-the-us-special-forces-a
- newmarketpitch.com/blogs/news/defense-tech-list-deals
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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