Low-cost hypersonic and long-range strike weapons, built by SpaceX alumni
Defense📍 El Segundo, CAFounded 2022
Current Valuation
Private
as of 2026-Q2 (reported target, The Information)
PRIVATE
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. The Information reported in June 2026 that the company is targeting a valuation of roughly $12 billion in a new raise; that figure is a reported target and was not independently verified.
Company Profile
CEO
Bryon Hargis
Founded
2022
HQ
El Segundo, CA
Growth
Reportedly targeting a ~$12B valuation (The Information, Jun 2026)
IPO Status
no imminent plans
Fundraising Status
no imminent plans
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 →
Private-company numbers are not real-time. Reflects publicly disclosed valuations from press releases, news reports, and tender offers as of 2026-Q2 (reported target, The Information). Refreshed quarterly.