Funding round

Castelion Pre-seed
Castelion, which works in defense technology research and development in Torrance, raised $5.4M in a Pre-seed round announced on 1 Apr 2023, led by Lavrock Ventures. 1 firm took part. It is Castelion's first venture round on record.
$5.4M
Amount raised
Not disclosed
Post-money valuation
1
Investors
1 lead
Valuation
What this round says about the price
Castelion did not disclose a valuation in this round. It is Castelion's first venture round on record, in the year it was founded (2023). It is under 1% of the $1.44B Castelion has raised in the venture rounds on record. Castelion raised again 6 months later: a Seed round of $14M in Oct 2023. 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 this round 1 Apr 2023, led by Lavrock Ventures $5.4M
- Seed 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
Lavrock Ventures led the round.
Lead investor
- backs 22 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
7 Pre-seed rounds in Aerospace and Defence within a year either side disclosed an amount; the median was $1.5M, and this round was 3.6 times the median. The closest in time, other companies' Pre-seed rounds in Aerospace and Defence:
| Company | Announced | Amount | Post-money | Led by |
|---|---|---|---|---|
| Aerospace and Defence | 5 Apr 2023 | $4.0M | not disclosed | MaC Venture Capital |
| Aerospace and Defence | 25 Apr 2023 | $1.5M | not disclosed | Speciale Invest and Antler |
| Aerospace and Defence | 24 May 2023 | $3.0M | not disclosed | Boost VC |
| Aerospace and Defence | 15 May 2023 | undisclosed | not disclosed | not named |
| Aerospace and Defence | 1 Jan 2023 | $505K | not disclosed | not named |
| Aerospace and Defence | 1 Aug 2023 | $2.0M | not disclosed | BoxGroup and Refactor Capital |
| Aerospace and Defence | 19 Sep 2023 | $1.2M | not disclosed | Project A |
| Aerospace and Defence | 27 Sep 2023 | $600K | not disclosed | All In Capital |
Questions
Frequently asked
How much did Castelion raise in its Pre-seed round?
Castelion raised $5.4M in its Pre-seed round, announced in Apr 2023.
Who led Castelion's Pre-seed round?
Lavrock Ventures led it.
What was Castelion's valuation at the Pre-seed round?
It was not disclosed.
How does it compare with other Pre-seed rounds in Aerospace and Defence?
7 Pre-seed rounds in Aerospace and Defence within a year either side disclosed an amount; the median was $1.5M, and this round was 3.6 times the median.
Did Castelion raise again after this round?
Yes: a Seed round in Oct 2023 of $14M.