Castelion

Castelion designs, tests, and manufactures next-generation military systems rapidly and at massive scale to deter future wars

Aerospace & Defense

Sector

Seed

Stage

Defense contractor

Model

01Company Overview

Castelion designs, tests, and manufactures next-generation military systems rapidly and at massive scale to deter future wars.

02Backed By8 investors

First In

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03Recent Activity

Participated in Castelion's $350M Series B to accelerate mass production of U.S. hypersonic weapons systems.

INVESTMENT·castelion.com

DEC 2025

Participated in Castelion's $350M Series B for hypersonic weapons development and manufacturing.

INVESTMENT·techcrunch.com

DEC 2025

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05Startup DNA

10

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