Funding round
Antares Series B
Antares, which works in modular nuclear microreactor design in Torrance, raised $96M in a Series B round announced on 2 Dec 2025, led by Shine Capital. 5 firms took part. It is Antares' third venture round on record; the one before was a Series A in Oct 2024.
$96M
Amount raised
of which $25M debt
Not disclosed
Post-money valuation
5
Investors
1 lead
Valuation
What this round says about the price
Antares did not disclose a valuation in this round. It came 14 months after Antares' Series A. It is 16% of the $604M Antares has raised in the venture rounds on record. Antares raised again 7 months later: a Series C round of $470M in Jul 2026.
Investors
Who put money in
Shine Capital led the round with 4 other firms.
Lead investor
- backs 32 venture-backed companies new investor
Also in the round
- Alt Capital new investor
- Caffeinated backs 79 venture-backed companies new investor
- backs 13 venture-backed companies new investor
- backs 18 venture-backed companies new investor
Use of proceeds
What the money is for
According to the announcement, the money goes to product development and scaling operations.
- Product development
- Scaling operations
Comparable rounds
How it compares
37 Series B rounds in Electronical Components Manufacturing within a year either side disclosed an amount; the median was $55M, and this round was 1.7 times the median. The closest in time, other companies' Series B rounds in Electronical Components Manufacturing:
| Company | Announced | Amount | Post-money | Led by |
|---|---|---|---|---|
| Electronical Components Manufacturing | 12 Nov 2025 | $150M | not disclosed | VXI Capital |
| Electronical Components Manufacturing | 20 Jan 2026 | $90M | not disclosed | Maverick Silicon and Socratic Partners |
| Electronical Components Manufacturing | 15 Jan 2026 | $86M | not disclosed | not named |
| Electronical Components Manufacturing | 6 Jan 2026 | $35M | not disclosed | Maverick Silicon |
| MatX Electronical Components Manufacturing | 24 Feb 2026 | $500M | not disclosed | Jane Street and Situational Awareness |
| Electronical Components Manufacturing | 4 Sep 2025 | $75M | not disclosed | Vanedge Capital |
| Electronical Components Manufacturing | 9 Sep 2025 | $58M | not disclosed | Yotta Capital Partners and NGP Capital |
| Electronical Components Manufacturing | 23 Mar 2026 | $12M | not disclosed | Idealist Capital and Real Ventures |
Sources
Where this comes from
Reported by 2 sources.
Questions
Frequently asked
How much did Antares raise in its Series B round?
Antares raised $96M in its Series B round, announced in Dec 2025.
Who led Antares' Series B round?
Shine Capital led it, with Alt Capital, Caffeinated, 53 Stations and Industrious Ventures.
What was Antares' valuation at the Series B round?
It was not disclosed.
How does it compare with other Series B rounds in Electronical Components Manufacturing?
37 Series B rounds in Electronical Components Manufacturing within a year either side disclosed an amount; the median was $55M, and this round was 1.7 times the median.
Did Antares raise again after this round?
Yes: a Series C round in Jul 2026 of $470M.