Castelion

Castelion announced $800M in Series C financing on August 19, 2026. Castelion raised a $1 billion Series C, combining $800 million of equity co-led by JPMorganChase’s Strategic Investment Group, Andreessen Horowitz, and Carlyle-managed funds with $250 million of committed revolving credit, to scale Blackbeard hypersonic missile production.

Round details

The financing includes backing from JPMorganChase Strategic Investment Group, Andreessen Horowitz, Carlyle, Lightspeed Venture Partners, Lavrock Ventures, Altimeter, General Catalyst, Interlagos. The company reported a $13B valuation alongside the transaction.

• Round: Series C
• Capital announced: $800M
• Headquarters: Torrance, CA

How the company plans to use the capital

Castelion said the financing will accelerate the scaled production of Blackbeard, its hypersonic strike missile. The company also said it is accelerating development and test of a much longer-range precision strike weapon and is developing defensive systems.

Why this matters for GTM teams

Castelion’s announcement describes the round as a combination of $800 million in equity financing and $250 million in committed financing for a revolving credit facility, and states that the round values the company at $13 billion.

Fresh capital is often an operational signal rather than a buying signal by itself. Teams should validate the company’s hiring pattern, product launches, geographic expansion, and technology priorities before choosing the message and timing of outreach.

Source and methodology

This report is based on the company’s announcement and records the disclosed amount, round, investors, location, and stated use of funds. SalesTools Research does not estimate undisclosed valuation or revenue figures.

Primary source: Castelion Series C announcement.