Polyphron
An AI-guided tissue-engineering platform that grows human micro-tissues and models their responses to support drug research and development.
$20MSeed
LeadQC
Quiet Capital
Activity from announced rounds
Activity in this selectionUnited States · Oct 9, 2026 · Jan 1, 2026
Quiet Capital is the venture firm named by RWX and Thatch in their financing announcements.
Recorded funding activity
RWX supplies cloud environments for testing agent-developed software. Thatch manages employee-directed health benefits, while Polyphron develops micro-tissue models for drug research. The company histories preserve these distinct applications.
Sources
- Rounds participated in
- 9
- Confirmed lead rounds
- 1 7 roles undisclosed
- New companies
- 9 First participation on record · 0 follow-on
- Funding in participating rounds
- $745M 9 disclosed · full round size, not this investor’s share
By stage
By primary sector
1 more
Fintech1
By country
Rounds
9 in this selectionThatch
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$108MNew funding
ParticipantRWX
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$100MSeries C
Role not disclosed