# Castelion Corporation

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/castelion

- Industry: Aerospace
- Headquarters: El Segundo, US
- Website: www.castelion.com
- Total disclosed funding: $2.1B
- Investors on record: 20

## About

Based in the US, Castelion Corporation operates as a defense production company that focuses on the design and development of military systems.Based in California, US, and founded in 2022 by Bryon Hargis (CEO), Sean Pitt (COO), and Andrew Kreitz (CFO). Castelion Corporation operates as a designer, developer, and tester of next-generation long-range strike weapons systems. In August 2026, Castelion Corporation raised USD 1.05 billion in series C and venture debt funding co-led by JP Morgan Asset Management, Carlyle Group, and Andreessen Horowitz, with participation from T Rowe Price, Lightspeed Venture Partners, Lavrock Ventures, Altimeter Capital,Interlagos, and General Catalyst Partners.Other unspecified investors also participated in the round. The series C funding values Castelion Corporation at USD 13 billion post-money.The company provides military hypersonic, vehicle, and strike systems that apply modern hardware development and manufacturing processes to national security challenges. Castelion is also engaged in hypersonic testing for materials and electronic systems, strike systems, ultra-high-performance thermal protection systems, and avionics for compatibility with existing platforms.Castelion generates revenue through the design, development, testing, and scaled manufacturing of advanced defense systems, with a primary focus on hypersonic strike weapons and other national security technologies for U.S. government and military customers. Its revenue is driven by defense contracts, weapon system production orders, prototyping programs, and related engineering and manufacturing services.The company will use the August 2026 funding to accelerate the scaled production of Blackbeard, expand manufacturing capacity, and develop longer-range strike weapons and defensive systems.

## Funding rounds

- Round, Oct 19, 2026, $1B — JPMorgan
- Series C, Aug 13, 2026, $647M — Carlyle Group, Lightspeed Venture Partners, T Rowe Price, General Catalyst Partners, Founders Fund, JP Morgan Asset Management, Andreessen Horowitz, Altimeter Capital, Lavrock Ventures, Interlagos
- Series B, Aug 8, 2025, $360M — Battery Ventures, Lightspeed Venture Partners, General Catalyst Partners, Pritzker Group Venture Capital, Andreessen Horowitz, Thrive Capital, Altimeter Capital, Lavrock Ventures, BlueYard Capital, Cantos Ventures, Avenir Growth Capital, First In Capital, Champion Hill Ventures, Space.VC, Interlagos
- Series A, Nov 4, 2024, $60M — Lightspeed Venture Partners, Andreessen Horowitz, Lavrock Ventures, BlueYard Capital, Cantos Ventures, First In Capital, Interlagos
- Seed, Sep 18, 2023, $8.6M — Andreessen Horowitz, Lavrock Ventures, BlueYard Capital, First In Capital, Champion Hill Ventures

## Investors

- Andreessen Horowitz (https://capitalatlas.ai/funds/andreessen-horowitz) — Seed, Series A, Series B, Series C
- Lavrock Ventures (https://capitalatlas.ai/funds/lavrock-ventures) — Seed, Series A, Series B, Series C
- BlueYard Capital (https://capitalatlas.ai/funds/blueyard-capital) — Seed, Series A, Series B
- First In Capital (https://capitalatlas.ai/funds/first-in-capital) — Seed, Series A, Series B
- Champion Hill Ventures (https://capitalatlas.ai/funds/champion-hill-ventures) — Seed, Series B
- Lightspeed Venture Partners (https://capitalatlas.ai/funds/lightspeed-venture-partners) — Series A, Series B, Series C
- Cantos Ventures (https://capitalatlas.ai/funds/cantos-ventures) — Series A, Series B
- Interlagos (https://capitalatlas.ai/funds/interlagos) — Series A, Series B, Series C
- Battery Ventures (https://capitalatlas.ai/funds/battery-ventures) — Series B
- General Catalyst Partners (https://capitalatlas.ai/funds/general-catalyst-partners) — Series B, Series C
- Pritzker Group Venture Capital (https://capitalatlas.ai/funds/pritzker-group-venture-capital) — Series B
- Thrive Capital (https://capitalatlas.ai/funds/thrive-capital) — Series B
- Altimeter Capital (https://capitalatlas.ai/funds/altimeter-capital) — Series B, Series C
- Avenir Growth Capital (https://capitalatlas.ai/funds/avenir-growth-capital) — Series B
- Space.VC — Series B
- Carlyle Group (https://capitalatlas.ai/funds/carlyle-group) — Series C
- T Rowe Price (https://capitalatlas.ai/funds/t-rowe-price) — Series C
- Founders Fund (https://capitalatlas.ai/funds/founders-fund) — Series C
- JP Morgan Asset Management (https://capitalatlas.ai/funds/jp-morgan-asset-management) — Series C
- JPMorgan