Valthos
New York, US · Founded 2024 · Delaware corporation · 14 employees on LinkedIn · 4 known investors
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Valthos develops AI systems to identify biological threats and design medical countermeasures in real time for biodefense applications.
Founders & leadership
Board

Investors · 4
How we know: Lux Capital's portfolio page · a partner's Signal profile · funding news · techstartups.com · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: the company's own site · funding news · techstartups.com · Not right? Tell us
How we know: funding news · citybiz.co · open dataset · 5k.vc investor directory · Not right? Tell us
Also in the syndicate · 1
Reported raises · per SEC filings
Form D private placements$27.3M disclosed across 1 round · 2025
▶$27.3MraisedApr 2026 · 5 investors · Other TechnologyRule 506(b)
- Tess Van StekelenburgDirector
- Kathleen McMahonExecutive Officer, Director
- Offering amount
- $27.5M
- Amount sold
- $27.3M
- First sale
- Aug 2025
- Incorporated
- Corporation, Delaware, 2024
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
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In the news
Frequently asked questions
- What does Valthos do?
- Valthos develops AI systems to identify biological threats and design medical countermeasures in real time for biodefense applications.
- Who are Valthos's investors?
- Valthos's investors include Lux Capital, Founders Fund, OpenAI Startup Fund.
- How much funding has Valthos raised?
- Valthos has disclosed $27.3M raised across 1 round.
- Where is Valthos headquartered?
- Valthos is headquartered in New York, US.






