Castor
PrivateLast Round
Series B
Jul 14, 2021
Est. Valuation
$250M
Total Funding Raised
$64.48M
Company Overview
Castor is a health-tech company that provides a cloud-based clinical data platform to simplify the clinical trial process for researchers worldwide.
Sector
Healthcare & Life Sciences
Verticals
Clinical Trials, Vertical SaaS, Patient Engagement
Business Model
B2B
Customer Profile
Subscription SaaS, Services & Consulting
AI Layer
Application
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Castor Comparables
Compare Castor with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Medrio | 90% | |
| Viedoc | 90% | |
| nPhase, Inc. | 86% |
Castor Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series B | Jul 14, 2021 | ||||
| Series A | Aug 19, 2020 | ||||
| Seed | Jul 2, 2018 | ||||
| Grant | May 23, 2017 |
Key People
Founding team and executive leadership
Castor Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| European Commission | Grant |
| F-Prime Capital | Series B |
| Eight Roads Ventures | Series B |
| Two Sigma Ventures | Series B, Series A |
| F-Prime Capital | Series B |
| Inkef Capital | Series A, Series B, Seed |
| WR Hambrecht + Co | Series A |
Market signals
Structured signals derived from secondary market and firmographic data.
- Mar 1, 2026
Partnering with Stefanini for phone support and device provisioning.
- Jan 21, 2026
Job posting reveals tooling support partnership with Zendesk.
Castor Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
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Request accessFrequently Asked Questions
Common questions about Castor's valuation, stock price, and market status.
Is Castor a public or private company?
Castor is a private company.
What is the current stock price of Castor?
Castor is a private company, so its shares have no public market price. Caplight tracks Castor's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Castor worth (valuation)?
Castor's valuation is estimated at $250.0M based on funding round data.
Can I buy Castor stock?
Castor shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Castor's last funding round?
Castor's most recent funding round was Series B on July 14, 2021.
Who are the main investors in Castor?
Key investors in Castor include F-Prime Capital, Eight Roads Ventures, Two Sigma Ventures, F-Prime Capital, Inkef Capital.
Will Castor IPO soon?
No public IPO plans have been announced for Castor.
How can I track Castor secondary market activity?
Caplight tracks bids, offers, and trades in Castor's shares on secondary markets.