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Polyphron raises $20M in seed financing led by Quiet Capital to build a physical verification layer for AI-driven biology.

PRIVATESep 17, 2026

Amount Raised

$20 Million

Round Type

Seed

New YorkBiotechnologyArtificial IntelligenceMachine Learning

Investors

GradientQuiet CapitalHaystackCompound

Description

Polyphron, a company focused on building artificial human biology, has announced a $20M seed financing round. This funding will help them create a verification substrate for AI-driven biology. Participating investors include Gradient, Haystack, and Compound. The funding aims to transform drug development and treat disease through advanced AI systems.

Quick answer

Polyphron raised $20 Million in a Seed round, dated September 17, 2026. Investors: Gradient, Quiet Capital, Haystack and Compound. Polyphron is based in New York, New York, United States.

How much did Polyphron raise?
Polyphron raised $20 Million in a Seed round on September 17, 2026.
Who invested in Polyphron?
Gradient, Quiet Capital, Haystack and Compound are named as investors in this round.
What does Polyphron do?
Polyphron is a company building artificial human biology to transform drug development and treat disease.
Where is Polyphron based and how big is it?
Polyphron is based in New York, New York, United States. Fundz records about 7 employees.
Who are the decision-makers at Polyphron?
Fundz holds 1 contact at Polyphron, including the Co-Founder & CEO. Names and contact details are shown to Fundz members.

Source: Fundz verified event record.

Who else raised in Biotechnology and Artificial Intelligence around the same time

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

  • VUSE XR raised $1.3M (Pre-Seed) on October 29, 2026.
  • Albert raised an undisclosed amount on October 26, 2026.
  • Pathos AI raised $237M (Series E) on October 23, 2026.
  • Empirical Machines raised $20M on October 17, 2026.
  • Albert Invent raised $55M (Series B) on October 13, 2026.
  • Drylab AI raised $3M (Seed) on October 13, 2026.

Who to call at Polyphron, and when

A new round usually means Polyphron is about to hire and buy. The teams that reach out first get the meeting.

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Company Information

Company

Polyphron

Location

New York, New York, United States

About

Polyphron is a company building artificial human biology to transform drug development and treat disease. They train frontier AI models to manufacture and simulate living tissue. This approach creates the verification substrate for AI-driven biology. Their work is essential as AI systems become increasingly powerful in generating drug candidates and biological hypotheses.

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Related People

1 contact
Verified contactsMatthew, Co-Founder & CEO hiddenSee plans and pricing
Predictive Intelligence
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Polyphron 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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