A hypersonic missile company
castelion.comLinkedInTorrance, CaliforniaDefenseFounded 2022
LATEST ROUND
Series C
$1.0B · 2026-08-19
RAISED ON RECORD · USD
$1.43B
across 4 verified rounds
INVESTORS
15
6 leads
SOURCES
7
from 6 publishers
A hypersonic missile company
castelion.comLinkedInTorrance, CaliforniaDefenseFounded 2022
4 sources
The release describes the $1 billion fundraise as $800 million in equity plus $250 million in committed revolving-credit financing; the announced fundraise amount is reported rather than treating the credit facility as a separate round.
1 source
1 source
The $100M capital raise combines the $70M Series A with $30M of venture debt; Silicon Valley Bank is identified as the debt provider, not an equity-round investor.
Published by hand (castelion.com): "This includes a $70M Series A, led by Lightspeed Venture Partners": brand backfill hand check: the page states the round (announced)
1 source
Published by hand (wsgr.com): "On October 5, 2023, Castelion, a new company focused on the rapid development and mass manufacturing of complex defense systems, with an emphasis on schedule, affordability, and scale, announced it has raised a $14.2 million Series Seed funding round co-led by Andreessen Horowitz (a16z) and Lavrock Ventures, with participation from First In, BlueYard Capital, and Champion Hill Ventures.": brand backfill hand check: the page states the round (announced)
| Round | Amount | Announced | Lead | Buzz |
|---|---|---|---|---|
| Series C [ REPORTED LATER ]: This round was announced before Fireround first saw it. It stays in the company's history, not in Latest, Trending, or alerts. | $1.0B $1B combined rounds at $13 billion valuation | 2026-08-19 | JPMorganChase's Strategic Investment Group, Andreessen Horowitz, global investment firm Carlyle | No recent discussion |
4 sources [ VERIFIED · CORRECTED ] read against 4 sources
The release describes the $1 billion fundraise as $800 million in equity plus $250 million in committed revolving-credit financing; the announced fundraise amount is reported rather than treating the credit facility as a separate round. | ||||
Castelion designs, tests, and manufactures affordable, mass-producible hypersonic strike weapons and other military systems for the U.S. military.
Checked against 9 sources on Sep 23
| Series B [ HISTORY ]: An earlier round, from the company's own announcement, found while researching the company. Checked like any round, but not new, so it stays out of the daily feed and alerts; a date range shows it. | $350M | 2025-12-05 | Altimeter Capital, Lightspeed | No recent discussion |
1 source [ BUILT WITH ]·[ SEARCH ]found by Firecrawl search·[ SCRAPE ]1 page read: prnewswire.com·[ JSON ]round read into a schema, with the sentence that states it·[ VERIFY ]confirmedchecked against 1 source·[ BRANDING ]logo and colour from the homepage·[ AGENT ]company research by the Firecrawl agent | ||||
| Series A [ HISTORY ]: An earlier round, from the company's own announcement, found while researching the company. Checked like any round, but not new, so it stays out of the daily feed and alerts; a date range shows it. | $70M $100M to date | 2025-01-29 | Lightspeed | No recent discussion |
1 source [ VERIFIED ] read against 1 source The $100M capital raise combines the $70M Series A with $30M of venture debt; Silicon Valley Bank is identified as the debt provider, not an equity-round investor. Published by hand (castelion.com): "This includes a $70M Series A, led by Lightspeed Venture Partners": brand backfill hand check: the page states the round (announced) [ BUILT WITH ]·[ SEARCH ]found by Firecrawl search·[ SCRAPE ]1 page read: castelion.com·[ JSON ]round read into a schema, with the sentence that states it·[ VERIFY ]confirmedchecked against 1 source·[ BRANDING ]logo and colour from the homepage·[ AGENT ]company research by the Firecrawl agent | ||||
| Seed Series Seed [ HISTORY ]: An earlier round, from the company's own announcement, found while researching the company. Checked like any round, but not new, so it stays out of the daily feed and alerts; a date range shows it. | $14.2M | 2023-10-05 | Andreessen Horowitz, Lavrock Ventures | No recent discussion |
1 source [ VERIFIED · CORRECTED ] read against 1 source
Published by hand (wsgr.com): "On October 5, 2023, Castelion, a new company focused on the rapid development and mass manufacturing of complex defense systems, with an emphasis on schedule, affordability, and scale, announced it has raised a $14.2 million Series Seed funding round co-led by Andreessen Horowitz (a16z) and Lavrock Ventures, with participation from First In, BlueYard Capital, and Champion Hill Ventures.": brand backfill hand check: the page states the round (announced) [ BUILT WITH ]·[ SEARCH ]found by Firecrawl search·[ SCRAPE ]1 page read: wsgr.com·[ JSON ]round read into a schema, with the sentence that states it·[ VERIFY ]correctedchecked against 1 source·[ BRANDING ]logo and colour from the homepage·[ AGENT ]company research by the Firecrawl agent | ||||
Also named as backers in company research: AFWERX STRATFI, Air Force Research Laboratory Direct-to-Phase 2 SBIR, U.S. Air Force, Air Force Research Laboratory