Valthos
Valthos is a New York City-based biodefense company developing frontier AI systems that identify biological threats and design medical countermeasures in real time. The company emerged from stealth in October 2025 with $30 million in backing from the OpenAI Startup Fund, Lux Capital, and Founders Fu
Valthos is an API provider whose private shares are listed on 1 secondary market: Nasdaq Private Market.
Where It Trades
Listing data is compiled from the public marketplace pages of Forge Global, Hiive, EquityZen, Nasdaq Private Market, and Augment. A listing indicates that a venue has published a page for this company — it is not an offer, a quote, or investment advice, and APIs.io has no affiliation with any venue.
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Tools for secondary market
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apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.resolveTurn a domain, URL or GitHub org into the provider it belongs to.find_cohortsEvery scored population of providers in the catalog.
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curl "https://apis.io/api/v1/search?q=valthos&limit=10"curl "https://apis.io/api/v1/tags/valthos"Discovery needs no key. Ratings and market analysis are Pro.