· investment-strategies · 6 min read
What Is Castelion’s Valuation in 2026? $13B After $1B
Castelion closed a $1B Series C on August 19, 2026: $800M equity plus a $250M revolver, at $13B. JPM, a16z, and Carlyle co-led. Google still ranks the $350M Series B. Revenue was not disclosed.
Castelion is worth $13 billion after a $1 billion Series C on August 19, 2026. That package is $800 million of equity plus a $250 million committed revolver. JPMorganChase’s Strategic Investment Group, Andreessen Horowitz, and Carlyle co-led.
Unexpected truth: Google still ranks the December 2025 $350 million Series B and The Information’s ~$12 billion target. The live company mark is $13 billion. Revenue was not disclosed.
This page is for people deciding whether Castelion (or this hypersonic-manufacturing lane) is worth another hour. Last verified August 20, 2026. Fact vs our read is labeled below.
Five-minute decision
| If you need… | Verdict |
|---|---|
| What happened | Funded. $800M equity + $250M revolver @ $13B, Aug 19, 2026. JPM / a16z / Carlyle co-leads. |
| What Castelion is | Hypersonic missile manufacturer. Blackbeard first; longer-range strike and defense systems next. |
| Whether it is “shipping” | Program of record; company targets 2027 fielding. Named contract dollars are a >$500M 18-month total, not a unit cadence. |
| Whether to diligence | Yes, if you underwrite production + procurement. No, if you need a revenue multiple before a first call. |
Investigate further when: you believe the scarce asset is magazine depth at commercial unit cost, and $13B is a factory print, not a software mark.
Wait or pass when: your bar is disclosed units/year, or you think Anduril already occupies the defense-tech allocation that would fund a hypersonic specialist.
What happened
| Field | Detail |
|---|---|
| Company | Castelion (castelion.com); CEO Bryon Hargis; HQ Torrance, CA |
| Round | $1B Series C = $800M equity + $250M committed revolver · $13B valuation |
| Date | August 19, 2026 (company + PR Newswire) |
| Equity co-leads | JPM Strategic Investment Group (Security and Resiliency Initiative); a16z; Carlyle (no /fund/ page) |
| Directory funds returning | Lightspeed, Altimeter, General Catalyst |
| Other names in the PR | Lavrock Ventures, Interlagos, T. Rowe Price Associates (new; advised account) |
| Use of proceeds | Blackbeard production (Project Ranger + beyond); longer-range strike; defensive systems |
| Traction disclosed | >$500M U.S. military contracts in 18 months; program of record in under four years; fielding targeted 2027 |
| Prior close | $350M Series B, December 5, 2025, Altimeter + Lightspeed |
Do not treat $1 billion as all equity. The company splits $800 million stock and $250 million credit.
What Castelion actually does
Product (company): Blackbeard, described as the first American hypersonic missile engineered from the start for industrial-rate output and commercial unit cost. Manufacturing includes mixing its own propellant in New Mexico (Lightspeed quote).
Job: give the U.S. and allies hypersonic strike in quantity, not a handful of exquisite rounds.
Three spend lines in the PR:
- More Blackbeard at and beyond the 1,000-acre Project Ranger campus (Sandoval County, NM). Company: largest dedicated hypersonic missile plant in the U.S.; >$250 million already spent privately; “hundreds of millions more” now.
- Longer-range precision strike that reuses Blackbeard tech — a cheaper complement to large exquisite systems.
- Air and missile defense products using the same manufacturing model (magazine depth).
Saronic overlap (June 11, 2026 company note): Saronic and Castelion said they will demonstrate maritime hypersonic launch from Saronic autonomous surface vessels, targeting 2027. That is a demo plan, not a disclosed offtake.
How big is Castelion actually?
| Question | Disclosed? | What we have |
|---|---|---|
| Valuation | Yes | $13B (company, Aug 19) |
| Equity | Yes | $800M |
| Credit | Yes | $250M committed revolver |
| Headline “$1B” | Package | Equity + revolver. Not $1B of primary stock. |
| Military contracts | Company total | >$500M over 18 months. One named piece: June 16 Navy $23.4M FFP for 50 Blackbeard EOC prototypes (company) |
| Revenue / units / year | No | Interlagos quote talks about “thousands a year.” That is an investor, not a company 10-K. |
| Fielding | Target | 2027 (company) |
| Prior mark | Close date | Series B Dec 5, 2025 ($350M). July 2025 TechCrunch was raise-in-progress. |
| Older SERP | Stale | The Information ~$12B target; Forge/secondary pages. Live mark is $13B. |
Contracts in aggregate, not a P&L. That is the most useful number on this page besides $13 billion.
Worked numbers (indicative)
- Setup: Dec 5, 2025 — $350M Series B to mass-produce Blackbeard.
- Move: Aug 19, 2026 — $800M equity at $13B, plus $250M credit for a production company.
- Punch: If $800M is new primary at $13B post, implied dilution is about 6.2% ($800M / $13B). That is headline arithmetic, not a disclosed option pool or preference stack. The revolver does not dilute.
Same-month defense tape (not Castelion’s P&L): Neros printed $2.5B on August 11. Heaviside printed $600M on August 12. Anduril is $61B after May’s $5B Series H. Castelion sits between Neros and Anduril on price, and next to Heaviside on Southern California munitions.
Castelion vs Anduril — what differs
| Castelion | Anduril | |
|---|---|---|
| Latest mark | $13B, Aug 19, 2026 | $61B, May 2026 |
| Last raise | $800M equity + $250M revolver | $5B Series H |
| Product | Hypersonic missiles (Blackbeard) | Software-defined defense platform (drones, C2, c-UAS) |
| What “scale” means | Factory + magazine depth | Lattice + many vehicle classes |
| Directory leads this print | a16z co-lead; JPM + Carlyle | Thrive + a16z |
| Main risk | Procurement + explosives manufacturing | Breadth vs primes |
Choose Castelion when you are underwriting hypersonic production. Choose Anduril when you are underwriting a software-defined defense conglomerate. Do not mash the two $B marks.
Castelion vs Neros: both Torrance-area manufacturers raising in August 2026. Neros is attritable drones at $2.5B. Castelion is hypersonic missiles at $13B. Same week, different payloads.
Why investors likely wrote $800M
Known evidence (company + named quotes)
- >$500M in U.S. military contracts over 18 months (company).
- Program of record in under four years; 2027 fielding target.
- Project Ranger already took >$250M of private infrastructure spend.
- Katherine Boyle (a16z): factory in New Mexico and a production agreement with the department named in her quote.
- Ravi Mhatre (Lightspeed): led Series A before a complete system had flown; now “shipping hardware to the services.”
- Bank + PE + venture in one syndicate (JPM, Carlyle, a16z) — credit sits next to equity because this is a plant.
Our interpretation (not an IC memo)
| Bet | Why it could justify $13B |
|---|---|
| Production, not a slide | Campus + propellant + program of record |
| Credit attached | $250M revolver is how you fund working capital once contracts exist |
| Category FOMO | Defense mega-rounds (Anduril $61B, Saronic $9.25B) already cleared the path |
| Cost-per-round | Company thesis is commercial unit cost vs exquisite hypersonics |
What we cannot claim: a revenue multiple, units/year, or that Interlagos’s “thousands a year” is current run-rate.
What has to be true for Castelion to win
- 2027 fielding happens with enough rounds to matter, not a ceremony.
- Project Ranger’s extra “hundreds of millions” actually raise output.
- The longer-range and defensive products do not dilute Blackbeard execution.
- The >$500M contract total converts on schedule.
- JPM/Carlyle credit stays available if working capital spikes.
What could break the thesis
- Hypersonic test or production slips past the 2027 language.
- Primes match cost at a volume Castelion cannot finance.
- The $13B mark was a scarcity print that later public comps will not pay.
- Mixing $800M equity and $250M debt in Slack as “$1B of dilution.”
When not to use this page
- Do not treat $13B as the December 2025 figure. December was the $350M B.
- Do not treat The Information’s ~$12B target as the live mark.
- Do not invent a
/fund/page for Carlyle, JPM, Lavrock, Interlagos, or T. Rowe. - Do not use Interlagos’s “thousands a year” as a company unit disclosure.
- Do not confuse this ALSO-week physical AI tape with ALSO the Rivian spinout.
Where to go next
Month tape: August 2026 VC news. Same-day mobility: ALSO $150M Series D. Defense stack: Anduril $61B, Neros $2.5B, Heaviside $600M, Saronic $9.25B. Entity: Castelion. a16z map: hot portfolio.