Castellan Defense Systems
Castellan Defense Systems
Senior notes on a transportable gas-cooled microreactor under a defense prototyping contract. Accredited only.
Roughly half of the casualties in recent land campaigns occurred in or around fuel convoys. A three megawatt reactor that fits in shipping containers and runs for five years without refueling removes that convoy. Castellan holds a construction permit under Department of Energy authorization and a prototyping contract with options for eight units.
$24,900,000 committed of $30,000,000
$17,430,000 released · 83% subscribed
- Minimum
- $25,000
- Target coupon
- 7.15%
- Term
- 6 yr
- Investors
- 88
$1,000 per unit
Annual, fixed
Closes November 15, 2026 · 63 days remaining
Sign in to see your limit
- Eligibility depends on residency, accreditation status and how much you have already invested this year.
- You can read everything about this offering without an account. Committing capital requires one.
Demo · viewing as
Browsing without an account. Everything is visible; nothing is purchasable until you verify who and where you are.
Or answer the questions yourselfNo money will move
No payment processor is connected. The commitment flow runs end to end, through amount, agreement, signature and receipt, and records a simulated position rather than a charge.
Issuer updates
This issuer has not posted an update yet.