Low-cost hypersonic and long-range strike weapons, built by SpaceX alumni
Castelion is a defense-technology startup founded by SpaceX alumni (led by CEO Bryon Hargis) developing low-cost hypersonic and long-range strike weapons. It applies a SpaceX-style approach — vertical integration, rapid hardware iteration, and volume manufacturing — to munitions, targeting the 'magazine depth' gap exposed by recent conflicts. In August 2026 it announced a $1 billion Series C at a $13 billion post-money valuation, co-led by JPMorganChase's Strategic Investment Group, Andreessen Horowitz and Carlyle, with Lightspeed, Altimeter, General Catalyst, Lavrock, Interlagos and T. Rowe Price participating; the round is $800 million of equity plus a $250 million revolving credit facility. The capital funds mass production of its Blackbeard missile and other hypersonic weapons at a New Mexico facility. Castelion has secured more than $500 million in U.S. military contracts since it was founded in 2022. The priced round supersedes the roughly $12 billion target The Information reported in June 2026.
Defense📍 Torrance, CAFounded 2022
Current Valuation
$13B
as of 2026-08-19
DECACORN
QL Price
$17B
+27% vs last round
QuantLogix's current estimate for Castelion, published 2026-09-07 — above the last disclosed round of $13B (2026-08-19).
Confidence
medium
Basis
secondary led
What backs this price
Last disclosed round
$13B
2026-08-19
weight 0.96
Secondary market print
$22B
2026-06-27
weight 0.65
How this price has held up
No round has priced for Castelion since QuantLogix began publishing a price for it, so there is nothing to grade yet. The claim above is on the record from 2026-09-07 and will be graded against the next priced round. See the full accuracy record →
Which publicly-traded funds already hold it, what $10,000 buys, and whether any route is open to you.
Cite this price as QuantLogix QL Price, Castelion, 2026-09-07 (ace925f2148f3a9e).
The id pins this exact claim, so a citation stays checkable after the price moves.
Model estimate for research — not a quote, target price, or investment advice.
IPO Outlookprivate
Is Castelion going public?
No. Castelion has no imminent IPO plans on record. It is still private.
What is Castelion's valuation in 2026?
Castelion is valued at $13B as of 08/19/2026, set by its Series C ($800M, Aug 2026). That is the last confirmed mark, not a live price — private shares do not trade continuously.
Has Castelion filed an S-1?
No public S-1 is on file for Castelion.
Who are Castelion's investors?
Castelion's investors include Andreessen Horowitz, Carlyle, JPMorganChase Strategic Investment Group, Lightspeed Venture Partners, Altimeter, General Catalyst and 9 more.
Answers are derived from the roster record shown on this page — filing status, last round and confirmed marks. Where the record is silent, the answer says so rather than guessing.
Company Profile
CEO
Bryon Hargis
Founded
2022
HQ
Torrance, CA
Total Raised
$1.2B
Growth
$13B post-money on a $1B Series C (Aug 2026); >$500M in U.S. military contracts
Last Round
Series C — $800M (Aug 2026) · Lead: JPMorganChase's Strategic Investment Group, Andreessen Horowitz & Carlyle
IPO Status
no imminent plans
Fundraising Status
Series C · $800M · 1 mo ago
no imminent plansTotal raised $1.2B4 disclosed rounds
Series C Impact
Round Size
$800M
Primary financing announced
Post-Money Valuation
$13B
Company-announced mark
Round / Post-Money
6.2%
New capital ÷ post-money
Disclosed Funding
$1.2B
Cumulative disclosed rounds
Step-up compares disclosed post-money valuations. Round / post-money is a financing-size ratio, not an ownership or dilution estimate.
Secondary Market
Implied price / share
$206.17
Last round price / share
$123.27
vs last round
+67.3%
Open interest
9
Last round price vs secondary price
Secondary price return by period
Implied per-share price from private secondary transactions, as of Jun 2026. This is a point estimate, not a quote — the feed carries no bid, ask or spread, and a secondary print is evidence of what someone paid on that date rather than a live market. Compare across every tracked name →
Growth & Valuation
Capital raised per round
Charts built from publicly disclosed funding rounds and revenue estimates. Approximate, not real-time, not investment advice.
Altimeter Capital & Lightspeed Venture Partners (co-led)
—
Series A
$70M
Jan 2025
Lightspeed Venture Partners
—
Seed
$14.2M
Oct 2023
Andreessen Horowitz & Lavrock Ventures (co-led)
—
Vertical Intelligence — Defense / Aerospace
Federal awards
10
prime contracts, last 36 months
Obligated
$237.25M
top: Department of Defense
Largest award
$155M
Department of Defense
Latest award
2026-02-25
Largest award: PER SOW, G/R LIST, AND TECHNICAL PROPOSAL (N6833526F1022)
Name-verified against recipient "CASTELION CORPORATION" on USASpending.gov as of 2026-09-04. Prime awards only — subcontracts and classified work are not visible in the public registry. Verify on USASpending.gov ↗
Talent Signal
Hiring trend
● First snapshot
trend accrues with monthly sweeps
Open roles
49
via careers page
Product-build share
65%
engineering, research, product, design
Trajectory
steady
heavy product build — 65% of open roles are product-building functions (engineering/research/product) — 18 of 49 open roles are hardware.
Counted from Castelion's live job board as of 2026-08-17; role functions classified from posting titles. Open-role counts are an activity signal, not headcount. Refreshed monthly.
Founders & Key People
Bryon Hargis
Investors
Andreessen Horowitz · Carlyle · JPMorganChase Strategic Investment Group · Lightspeed Venture Partners · Altimeter · General Catalyst · T. Rowe Price · Lavrock Ventures · Cantos · First In · BlueYard Capital · Interlagos · Space VC · Avenir · Champion Hill
Private-company numbers are not real-time. Reflects publicly disclosed valuations from press releases, news reports, and tender offers as of 2026-08-19. Refreshed quarterly.