Who Just RaisedTorrance, CA · Technology · Form D filed Aug 28, 2026
Castelion Corp raised $647M
Castelion Corp is a technology company based in Torrance, California. In a Form D filed with the SEC on August 28, 2026, it reported raising $647,000,679 from 17 investors as part of an offering of up to $800,000,173. The first sale in the offering took place on August 13, 2026.
Castelion designs, tests, and manufactures next-generation military systems rapidly and at massive scale to deter future wars.
In the news: Orrick: Castelion Raises $1B Series C to Scale Production of Low-Cost Hypersonic Weapons
- 5th Form D since 2023. Earlier new notices: Nov 20, 2025 · Nov 20, 2025 · Oct 6, 2023 · Apr 21, 2023. All filings on EDGAR
- Still raising. $153M of the $800M offering was still unsold at filing.
$1.08B raised since 2020
5 Form D offerings, as reported to the SEC, the first in Apr 21, 2023. Amendments update a round; they aren't counted twice.
| Filed | Sold | Offering size | Investors |
|---|---|---|---|
| Aug 28, 2026 | $647M | $800M | 17 |
| Nov 20, 2025 | $360M | $360M | 30 |
| Nov 20, 2025 | $60M | $60M | 8 |
| Oct 6, 2023 | $8.6M | $8.6M | 17 |
| Apr 21, 2023 | $5.4M | $5.5M | 20 |
Lead score
33 out of 100
still raising budget to spend website found
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Filing details
- Website
- castelion.com
- Amount raised
- $647,000,679
- Offering size
- $800,000,173
- Investors so far
- 17
- First sale
- August 13, 2026
- Securities offered
- Equity
- Exemption claimed
- Rule 506(b)
- Industry
- Technology
- Headquarters
- Torrance, California
- Incorporated
- Delaware, 2022
- Entity type
- Corporation
Filings
| Filed | Form | Raised | Offering size | Investors | Source |
|---|---|---|---|---|---|
| D (new notice) | $647,000,679 | $800,000,173 | 17 | SEC filing |
Figures come from the company's own filing with the SEC and are shown as reported. How to read a Form D.
Updated · Raises in the week of Aug 24, 2026 · Technology funding in California · August 2026 funding report
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