Funding round
Castelion Seed
Castelion, which works in defense technology research and development in Torrance, raised $14M in a Seed round announced on 5 Oct 2023, led by Andreessen Horowitz and Lavrock Ventures. 5 firms took part. It is Castelion's second venture round on record; the one before was a Pre-seed in Apr 2023.
$14M
Amount raised
Not disclosed
Post-money valuation
5
Investors
2 leads
Valuation
What this round says about the price
Castelion did not disclose a valuation in this round. It came 6 months after Castelion's Pre-seed. It is under 1% of the $1.44B Castelion has raised in the venture rounds on record. Castelion raised again 15 months later: a Series A round of $70M in Jan 2025. Its next priced round, a Series C in Aug 2026, valued it at $13.00B.
Castelion's funding rounds
Castelion has 5 venture rounds on record. This one is highlighted.
- Pre-seed 1 Apr 2023, led by Lavrock Ventures $5.4M
- Seed this round 5 Oct 2023, led by Andreessen Horowitz and Lavrock Ventures $14M
- Series A 29 Jan 2025, led by Lightspeed Venture Partners $70M
- Series B 5 Dec 2025, led by Altimeter and Lightspeed Venture Partners $350M
- Series C 19 Aug 2026, led by J.P. MorganChase’s Strategic Investment Group, Andreessen Horowitz and Carlyle $1.00B$13.00B post-money
Investors
Who put money in
Andreessen Horowitz and Lavrock Ventures led the round with 3 other firms.
Lead investors
- Andreessen Horowitz backs 722 venture-backed companies new investor
- backs 22 venture-backed companies new investor
Also in the round
- backs 24 venture-backed companies new investor
- backs 28 venture-backed companies new investor
- backs 6 venture-backed companies new investor
Use of proceeds
What the money is for
According to the announcement, the money goes to product development, scaling operations and working capital.
- Product development
- Scaling operations
- Working capital
Comparable rounds
How it compares
52 Seed rounds in Aerospace and Defence within a year either side disclosed an amount; the median was $4.6M, and this round was 3.1 times the median. The closest in time, other companies' Seed rounds in Aerospace and Defence:
| Company | Announced | Amount | Post-money | Led by |
|---|---|---|---|---|
| Aerospace and Defence | 16 Oct 2023 | $5.0M | not disclosed | not named |
| Aerospace and Defence | 10 Oct 2023 | $4.2M | not disclosed | Moonshot Capital |
| Aerospace and Defence | 25 Oct 2023 | $3.0M | not disclosed | Draper B1 |
| Aerospace and Defence | 30 Sep 2023 | undisclosed | not disclosed | not named |
| Aerospace and Defence | 30 Aug 2023 | $7.4M | not disclosed | Inventure |
| Aerospace and Defence | 11 Dec 2023 | $5.0M | not disclosed | not named |
| Aerospace and Defence | 14 Aug 2023 | $3.5M | not disclosed | Hesai Technology and ZhenFund |
| Aerospace and Defence | 5 Dec 2023 | $2.9M | not disclosed | Main Sequence |
Sources
Where this comes from
Reported by 1 source. The deal data marks this round as not yet confirmed by an official announcement. Unconfirmed
Questions
Frequently asked
How much did Castelion raise in its Seed round?
Castelion raised $14M in its Seed round, announced in Oct 2023.
Who led Castelion's Seed round?
Andreessen Horowitz and Lavrock Ventures led it, with First In, BlueYard and Champion Hill Ventures.
What was Castelion's valuation at the Seed round?
It was not disclosed.
How does it compare with other Seed rounds in Aerospace and Defence?
52 Seed rounds in Aerospace and Defence within a year either side disclosed an amount; the median was $4.6M, and this round was 3.1 times the median.
Did Castelion raise again after this round?
Yes: a Series A round in Jan 2025 of $70M.