ProtonDx
PrivateLast Round
Seed
Dec 4, 2025
Total Funding Raised
$4.58M
Momentum
Top 25%
of companies Caplight tracks
Company Overview
ProtonDx is a diagnostic equipment company that develops a portable molecular diagnostic platform designed to deliver rapid, laboratory-grade testing at the point of need.
Sector
Healthcare & Life Sciences
Verticals
Medical Devices, Biotech Equipment, Sensors
Business Model
B2B
Customer Profile
Hardware + Subscription, Hardware Sales, Government Contracts
AI Layer
Non-AI
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
ProtonDx Comps
Public and private peers based on sector, stage, and business model.
| Company | Status | Est. Valuation | Rev Multiple |
|---|---|---|---|
| OpenAI | Private | $86.0B | ~40x |
| Cohere | Private | $5.0B | -- |
| Competitor 1 | Public | $XX.XB | XXx |
| Competitor 2 | Public | $XX.XB | XXx |
ProtonDx Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Seed | Dec 4, 2025 | ||||
| Grant | Jun 25, 2025 | ||||
| Grant | Feb 18, 2025 | ||||
| Grant | Sep 28, 2022 |
Key People
Founding team and executive leadership
ProtonDx Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| CARB-X | Seed |
| SBRI Healthcare | Grant |
| UK Agri-Tech Centre | Grant |
| Imperial College London | Grant |
| Innovate UK | Grant |
| NHS Accelerated Access Collaborative | Grant |
| Department for Environment, Food & Rural Affairs | Grant |
Market signals
Structured signals derived from secondary market and firmographic data.
- Dec 8, 2025
Monthly visitors grew 897% MoM, from 370 to 3.7K.
- Dec 4, 2025
$1M round led by CARB-X.
ProtonDx Filings
SEC and related filings with document metadata.
| Typed | Date | Amount Offered | Amount Sold | Filling | Pages | Download |
|---|---|---|---|---|---|---|
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Frequently Asked Questions
Common questions about ProtonDx's valuation, stock price, and market status.