Valthos
We develop frontier AI systems that identify biological threats and design medical countermeasures in real time.
$30M Seed ·
Led by OpenAI Startup Fund · Source: geo.tv
Funding history ↓Signals
X account@ValthosTech · created Sep 11, 2025 (14 months old) · 2,813 followers
Website registeredSep 17, 2024 (2 years old)
About Valthos
Our founding team comes from Palantir, DeepMind, the Broad Institute, and the Arc Institute.
TIMELINE · MONEY RAISED
Valthos | 402 days from website to first raise on record
Money raised, round by round (amounts linked to their source). Pins are dated signals; hover the icons for dates.
Funding rounds
| Date | Round | Amount | Lead | Source |
|---|---|---|---|---|
| Seed | $30M | geo.tv |
Timeline
- X account created
- Website created
Founders and team
KM
Kathleen McMahon Co-founder & CEO@kath_mcmahon · source: x.comTV
Tess van Stekelenburg Co founder@velvetatom · source: x.com
Investors
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OpenAI Startup Fund portfolio →
Sources and API
Every amount links to the page it came from. * Estimated from an accelerator's published standard deal, not a company-specific disclosure. How Recent Funding sources and verifies funding data. The same data as JSON: /api/v1/companies/valthos (get a free API key).