Castelion
PrivateLast Round
Series B
Dec 5, 2025
Est. Valuation
$2.8B
Total Funding Raised
$494.2M
Momentum
Top 5%
of companies Caplight tracks
Company Overview
Castelion is an aerospace and defense company that designs, tests, and manufactures next-generation hypersonic strike weapons and military systems.
Sector
Frontier & Industrial Tech
Verticals
Defense Tech, Computing Hardware, Space Technology
Business Model
B2G
Customer Profile
Government Contracts, Hardware Sales
AI Layer
Application
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Castelion Comparables
Compare Castelion with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Specter Aerospace | 78% | |
| Hypersonica | 77% | |
| Northrop Grumman Corporation | 76% | |
Castelion Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series B | Dec 5, 2025 | ||||
| Series A | Jan 29, 2025 | ||||
| Debt | Jan 29, 2025 | ||||
| Seed | Oct 5, 2023 |
Secondary Market Activity
Bids, offers, and trades by month
| Operation | Date | Price | Size | Share Class | Structure |
|---|---|---|---|---|---|
OFFER |
Key People
Founding team and executive leadership
Castelion Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Andreessen Horowitz | Series B, Series A, Seed |
| Interlagos Capital | Series B, Series A |
| Lavrock Ventures | Series B, Series A, Seed |
| BlueYard Capital | Seed, Series B, Series A |
| Cantos Ventures | Series B, Series A |
| General Catalyst | Series B |
| First In | Seed, Series B, Series A |
Market signals
Structured signals derived from secondary market and firmographic data.
- Mar 10, 2026
Investing in a new missile manufacturing facility in New Mexico.
- Mar 5, 2026
Plans to scale production to thousands of units per year by 2026.
Castelion 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 Castelion's valuation, stock price, and market status.