Firms, funds, partners, companies and rounds from sworn filings, firm sites and announcements, kept as a graph with a date and a source on every edge. Facts, inferences and estimates are labelled as such. A fund target is never a close, GAV is never dry powder, and a round size is never an investor’s check.

Companies / Castelion Corp

Castelion Corp

Series CTorrance, CAcastelion.comOther Technology
Facts
Year of incorporation
2022sec.gov
Revenue range (Form D)
Decline to Disclosesec.gov
Rounds on record
4
Disclosed raised
$1.4Bsum of rounds with a disclosed amount only
Named investors
14
Financing history
4 rounds
  1. Aug 19, 2026
    Series C · $1.0B (disclosed)
    Fact Press release wires (Business Wire, PR Newswire, GlobeNewswire public RSS) · “Castelion Raises $1 Billion Series C to Scale Production of Low-Cost Hypersonic Weapons”
  2. Dec 5, 2025
    Series B · $350M (disclosed)
    Lightspeed Venture Partners (lead) via Connor LoveLavrock Ventures, LLC (participant) via Alex PoulinAndreessen Horowitz (participant) via Katherine BoyleGeneral Catalyst (participant)First In (participant)Space VC (participant)Blue Yard Capital (participant)Champion Hill (participant)Cantos Ventures, LLC (participant)Altimeter Capital Management, LP (lead) via Erik KriessmannAvenir (participant)
    Fact Press release wires (Business Wire, PR Newswire, GlobeNewswire public RSS) · “Castelion Closes $350 Million Series B to Mass Produce U.S. Hypersonic Weapons”
  3. Aug 8, 2025
    Form D equity offering · $360M (form d sold) · 30 investors
    Fact SEC EDGAR Form D data sets (quarterly) · “Castelion Corp filed Form D: $359,998,733 sold of $359,998,733, Other Technology”
  4. Nov 4, 2024
    Form D equity offering · $60.0M (form d sold) · 8 investors
    Fact SEC EDGAR Form D data sets (quarterly) · “Castelion Corp filed Form D: $59,999,916 sold of $59,999,916, Other Technology”
Investors on record
15 edges
People
3 officers, 2 directors
Timeline
4
  1. Aug 19, 2026
    Castelion announced Series C of $1,000,000,000
    Round announced Fact Press release wires (Business Wire, PR Newswire, GlobeNewswire public RSS)
  2. Dec 5, 2025
    Castelion announced Series B of $350,000,000, led by Altimeter Capital, Lightspeed Venture Partners
    Round announced Fact Press release wires (Business Wire, PR Newswire, GlobeNewswire public RSS)
  3. Nov 20, 2025
    Castelion Corp filed Form D: $359,998,733 sold of $359,998,733, Other Technology
    Form D filed Fact SEC EDGAR Form D data sets (quarterly)
  4. Nov 20, 2025
    Castelion Corp filed Form D: $59,999,916 sold of $59,999,916, Other Technology
    Form D filed Fact SEC EDGAR Form D data sets (quarterly)
Evidence
27 observations
Every observation on this company