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Valthos Inc. secures $30 million in a funding round led by OpenAI to redefine biosecurity in the age of advanced AI.

PRIVATEOct 24, 2025

Amount Raised

$30 Million

Round Type

Funding Round

New YorkBiotechnologySoftwareArtificial IntelligenceMachine LearningHealth Diagnostics

Investors

Founders FundLux CapitalOpenAI

Description

Valthos Inc. announced a significant $30 million funding round backed by OpenAI, Founders Fund, and Lux Capital. This funding will help Valthos develop early-warning and defense systems against AI-driven bioweapon attacks. With the rise of advanced AI, the need for proactive biosecurity measures has never been more critical

Who else raised in Health Diagnostics and Biotechnology around the same time

Companies in the same sectors as Valthos that raised within 45 days of this round, from Fundz verified event records.

  • Cursor raised $2.3B (Funding Round) on November 13, 2025.
  • Healthplus.ai raised $2.7M (Seed) on November 29, 2025.
  • Synthio Labs raised $5M (Seed) on November 19, 2025.
  • Lumonus raised $18M (Series B) on November 6, 2025.
  • Prezent raised $30M (Funding Round) on October 13, 2025.
  • Nerveli raised $540K (Pre-Seed) on October 9, 2025.

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Company Information

Company

Valthos

Location

New York, New York, United States

About

Valthos Inc. is a New York-based biosecurity software startup focused on creating early-warning and rapid-response systems to prevent AI-driven bioweapon attacks. The company is developing sophisticated AI-powered tools that aggregate biological data to identify emerging threats and update medical countermeasures swiftly. Co-founded by Kathleen McMahon, Valthos aims to revolutionize biodefense by fostering collaboration with pharmaceutical companies. Its mission is to build a critical line of defense against the evolving risks associated with advanced AI technology.

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Related People

2 contacts
Verified contactsTess S., Co-Founder & PresidentSee plans and pricing
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Valthos raised. Fundz records a round at a median of 3.6 minutes from the SEC filing, with the decision-maker attached.

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