# Castelion funding rounds and investors

As of 8 Nov 2026, Castelion has raised $1.43B across 4 verified rounds on record; latest: $1 billion Series C led by JPMorganChase's Strategic Investment Group, Andreessen Horowitz and 1 other, announced 19 Aug 2026.

A hypersonic missile company

Website: https://castelion.com  
Headquarters: Torrance, California  
Page: https://fireround.dev/companies/castelion

## Verified rounds

| Announced | Round | Amount | Lead investors | Other investors | Sources |
| --- | --- | --- | --- | --- | --- |
| 2026-08-19 | Series C | $1 billion | JPMorganChase's Strategic Investment Group, Andreessen Horowitz, global investment firm Carlyle | Lightspeed, Altimeter Capital, Lavrock Ventures, General Catalyst, Interlagos, T. Rowe Price | [castelion.com](https://www.castelion.com/news/series-c), [spacenews.com](https://spacenews.com/hypersonic-missile-startup-castelion-raises-1-billion), [finance.yahoo.com](https://finance.yahoo.com/technology/articles/castelion-raises-1-billion-series-131046068.html) |
| 2025-12-05 | Series B | $350 million | Altimeter Capital, Lightspeed | Lavrock Ventures, Andreessen Horowitz, General Catalyst, First In, Space Capital, Cantos, BlueYard Capital, Avenir, Champion Hill Ventures, Interlagos | [prnewswire.com](https://www.prnewswire.com/news-releases/castelion-closes-350-million-series-b-to-mass-produce-us-hypersonic-weapons-302633732.html) |
| 2025-01-29 | Series A | $70M | Lightspeed | Andreessen Horowitz, Lavrock Ventures, Cantos, First In, BlueYard Capital, Interlagos | [castelion.com](https://www.castelion.com/news/castelion-announces-series-a-funding) |
| 2023-10-05 | Seed | $14.2 million | Andreessen Horowitz, Lavrock Ventures | First In, BlueYard Capital, Champion Hill Ventures | [wsgr.com](https://www.wsgr.com/en/insights/wilson-sonsini-advises-a16z-on-castelions-dollar142-million-series-seed-funding.html) |

Source: Fireround (https://fireround.dev), an open-source funding feed. Each round is checked against the pages listed with it.