Castle
PrivateLast Round
Pre Seed
Jun 26, 2025
Total Funding Raised
$1M
Company Overview
Castle is a fintech company that provides an automated bitcoin treasury solution for small and medium-sized businesses to convert portions of revenue into bitcoin.
Sector
Crypto & Web3
Verticals
Blockchain Infrastructure, Wealth Management, Digital Payments
Business Model
B2B
Customer Profile
Payment Processing Fee, Subscription SaaS
AI Layer
Non-AI
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Castle Comparables
Compare Castle with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| River Financial | 68% | |
| Swan Bitcoin | 67% | |
| Zaprite | 63% |
Castle Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Pre Seed | Jun 26, 2025 |
Castle Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Park Rangers Capital | Pre Seed |
| Epoch Ventures | Pre Seed |
| Winklevoss Capital | Pre Seed |
| Boost VC | Pre Seed |
Market signals
Structured signals derived from secondary market and firmographic data.
- Jun 26, 2025
$1M raised in Pre Seed round.
Recent news
Latest coverage and updates
- launchesSep 8, 2026
Savewithcastle opens its Bitcoin savings stack to individuals in Florida, extending its automated financial solutions from businesses to personal accounts on Sep 8th '26.
Castle Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
Request accessFrequently Asked Questions
Common questions about Castle's valuation, stock price, and market status.
Is Castle a public or private company?
Castle is a private company.
What is the current stock price of Castle?
Castle is a private company, so its shares have no public market price. Caplight tracks Castle's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Castle worth (valuation)?
Valuation information for Castle is not publicly available.
Can I buy Castle stock?
Castle shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Castle's last funding round?
Castle's most recent funding round was Pre Seed on June 26, 2025.
Who are the main investors in Castle?
Key investors in Castle include Boost VC.
Will Castle IPO soon?
No public IPO plans have been announced for Castle.
How can I track Castle secondary market activity?
Caplight tracks bids, offers, and trades in Castle's shares on secondary markets.