Funding round
K2 Space Series B
K2 Space, which works in satellite platform design and manufacturing in Torrance, raised $110M in a Series B round announced on 13 Feb 2025, led by Lightspeed Venture Partners and Altimeter. 4 firms took part, 4 of them already investors. It is K2 Space's third venture round on record; the one before was a Series A in Feb 2024.
$110M
Amount raised
Not disclosed
Post-money valuation
4
Investors
2 leads
Valuation
What this round says about the price
K2 Space did not disclose a valuation in this round; its last disclosed one was $250M at the Series A (Feb 2024). It came 12 months after K2 Space's Series A. It is 12% of the $920M K2 Space has raised in the venture rounds on record. K2 Space raised again 10 months later: a Series C round of $250M in Dec 2025, at $3.00B post-money.
K2 Space's funding rounds
K2 Space has 5 venture rounds on record and 1 other deal. This one is highlighted.
- Seed 10 Mar 2023, led by First Round and Republic Capital $8.5M$45M post-money
- Series A 13 Feb 2024 $51M$250M post-money
- Series B this round 13 Feb 2025, led by Lightspeed Venture Partners and Altimeter $110M
- Other not a venture round 15 Sep 2025 $15M
- Series C 11 Dec 2025, led by Redpoint Ventures $250M$3.00B post-money
- Series D 30 Jul 2026, led by Kleiner Perkins and ICONIQ $500M$6.80B post-money
Investors
Who put money in
Lightspeed Venture Partners and Altimeter led the round with 2 other firms. Lightspeed Venture Partners, Altimeter, Alpine Space Ventures and First Round had backed K2 Space before.
Lead investors
- Lightspeed Venture Partners backs 454 venture-backed companies existing investor
- Altimeter backs 67 venture-backed companies existing investor
Also in the round
- backs 7 venture-backed companies existing investor
- backs 212 venture-backed companies existing investor
Use of proceeds
What the money is for
According to the announcement, the money goes to hiring, product development, scaling operations and working capital.
- Hiring
- Product development
- Scaling operations
- Working capital
Comparable rounds
How it compares
34 Series B rounds in Aerospace and Defence within a year either side disclosed an amount; the median was $68M, and this round was 1.6 times the median. The closest in time, other companies' Series B rounds in Aerospace and Defence:
| Company | Announced | Amount | Post-money | Led by |
|---|---|---|---|---|
| Aerospace and Defence | 4 Feb 2025 | $52M | not disclosed | Incubate Fund |
| Aerospace and Defence | 6 Feb 2025 | $30M | not disclosed | Altos Ventures |
| Aerospace and Defence | 23 Apr 2025 | $100M | not disclosed | General Innovation Capital Partners |
| Aerospace and Defence | 9 Dec 2024 | $24M | not disclosed | not named |
| The Exploration Company Aerospace and Defence | 18 Nov 2024 | $160M | not disclosed | Balderton Capital and Plural |
| CHAOS Industries Aerospace and Defence | 13 Nov 2024 | $145M | not disclosed | Accel |
| Aerospace and Defence | 12 May 2025 | $105M | not disclosed | Lockheed Martin Ventures |
| Aerospace and Defence | 8 May 2025 | $21M | not disclosed | Razor’s Edge Ventures |
Sources
Where this comes from
Reported by 3 sources.
Questions
Frequently asked
How much did K2 Space raise in its Series B round?
K2 Space raised $110M in its Series B round, announced in Feb 2025.
Who led K2 Space's Series B round?
Lightspeed Venture Partners and Altimeter led it, with Alpine Space Ventures and First Round.
What was K2 Space's valuation at the Series B round?
It was not disclosed; its last disclosed one was $250M at the Series A (Feb 2024).
How does it compare with other Series B rounds in Aerospace and Defence?
34 Series B rounds in Aerospace and Defence within a year either side disclosed an amount; the median was $68M, and this round was 1.6 times the median.
Did K2 Space raise again after this round?
Yes: a Series C round in Dec 2025 of $250M at $3.00B post-money.