castelion

Private

—N/Ahttps://castelion.com

Last Round

Series B

12/5/2025

Last Round Size

$350M

Est. Valuation

$2.8B

Total Funding Raised

$434.2M

Company Overview

A defense production company that specializes in building advanced military hypersonic, vehicle, and strike systems to deter future wars.

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castelion Comps

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Company	Similarity	Domain
SpaceX	0%	—
Tesla	0%	—
Competitor 1	XX%	—
Competitor 2	XX%	—

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castelion Funding Rounds

Historical fundraising activity

Round	Date	Amount Raised	Valuation	Investors	Sources
Series B	12/5/2025
Series A	1/29/2025
Debt	1/29/2025
Seed	10/4/2023

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Secondary Market Activity

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Operation	Date	Price	Size	Share Class	Structure
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castelion Filings

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castelion Filings

SEC and related filings with document metadata.

Frequently Asked Questions

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Firmographic Details

Headquarters—

Year Founded2022

Last Funding12/5/2025

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