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 · Jul 12, 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
- 4
- Confirmed lead rounds
- 1 2 roles undisclosed
- New companies
- 4 First participation on record · 0 follow-on
- Funding in participating rounds
- $192M 4 disclosed · full round size, not this investor’s share
By stage
By primary sector
By country
Rounds
4 in this selectionThatch
A health-benefits platform that lets employers set healthcare budgets while employees choose insurance and eligible care to fit their needs.
$108MNew funding
ParticipantRWX
Dev cloud platform for validating and testing AI-driven software engineering
$12MSeries A
Role not disclosedArch
Arch helps investors, advisers and family offices administer private-market portfolios by collecting documents, standardizing data and coordinating investment workflows.
$52MSeries B
Role not disclosed