Castelion is a defense tech company that develops and manufactures modern weapons systems for the U.S. military.
Castelion has raised $800.0M in total funding. The most recent round was Series C. The last funding was announced in August 2026.
Castelion's investors include Andreessen Horowitz, General Catalyst, Valor Equity Partners, Lightspeed Venture Partners, T. Rowe Price.
Castelion is headquartered in Torrance, United States.
Castelion is a defense tech company that develops and manufactures modern weapons systems for the U.S. military.
Castelion is at the Series C stage.
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"Castelion — Funding & Investors." VCBacked, August 19, 2026, https://www.vcbacked.co/company/castelion. Accessed October 28, 2026.
VCBacked. (2026). Castelion — Funding & Investors. Retrieved October 28, 2026, from https://www.vcbacked.co/company/castelion
{{cite web |title=Castelion — Funding & Investors |url=https://www.vcbacked.co/company/castelion |website=VCBacked |access-date=October 28, 2026}}Profile data sourced and verified per the VCbacked methodology · Last funding round dated