US · aerospace · defense · defense tech
Who invested in Castelion
3 rounds we have observed, with the investors named in each. Every figure below came from a named source, and where the company reported the raise to the SEC itself, that is shown beside it.
The rounds
Series C · Aug 2026 · $800M
Andreessen Horowitz lead, JPMorgan Chase lead, JPMorgan Chase’s Strategic Investment Group lead, Carlyle lead, Carlyle Group lead, General Catalyst, Lightspeed, Altimeter
Reported by Crunchbase News and 3 others · SEC filing: $647M sold under the offering
Series B · Jul 2025 · $350M
Lightspeed Venture Partners lead, Battery Ventures, Altimeter Capital, Pritzker Group
Reported by TechCrunch and 1 other
Series A · Jan 2025 · $100M
Lightspeed Venture Partners lead, Andreessen Horowitz, Interlagos, BlueYard Capital, Cantos, First In Ventures, Lavrock Ventures
Reported by Crunchbase News
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.