Funding round

Antora Series B
Antora, which works in thermal energy storage solutions in Sunnyvale, raised $150M in a Series B round announced on 22 Feb 2024, led by Decarbonization Partners. 13 firms took part. It is Antora's second venture round on record; the one before was a Series A in Feb 2022.
$150M
Amount raised
Not disclosed
Post-money valuation
13
Investors
1 lead
Valuation
What this round says about the price
Antora did not disclose a valuation in this round. It came 24 months after Antora's Series A. It is 20% of the $750M Antora has raised in the venture rounds on record. Antora raised again 29 months later: a Series C round of $550M in Jul 2026, at $2.47B post-money.
Antora's funding rounds
Antora has 3 venture rounds on record and 2 other deals. This one is highlighted.
- Series A 16 Feb 2022, led by Breakthrough Energy and Lowercarbon Capital $50M
- Grant not a venture round 15 Nov 2023 $4.0M
- Series B this round 22 Feb 2024, led by Decarbonization Partners $150M
- Grant not a venture round 25 Jun 2024 $15M
- Series C 30 Jul 2026, led by G2 Venture Partners and Eclipse $550M$2.47B post-money
Investors
Who put money in
Decarbonization Partners led the round with 12 other firms.
Lead investor
- Decarbonization Partners new investor
Also in the round
- Emerson Collective backs 76 venture-backed companies new investor
- backs 14 venture-backed companies new investor
- The Nature Conservancy new investor
- NextEra Energy Resources, LLC new investor
- backs 17 venture-backed companies new investor
- Lowercarbon Capital backs 110 venture-backed companies new investor
- Breakthrough Energy backs 113 venture-backed companies new investor
- BHP Ventures new investor
- backs 22 venture-backed companies new investor
- Grok Ventures new investor
- BlackRock
- Temasek backs 195 venture-backed companies
Use of proceeds
What the money is for
According to the announcement, the money goes to scaling operations.
- Scaling operations
Comparable rounds
How it compares
19 Series B rounds in Batteries within a year either side disclosed an amount; the median was $36M, and this round was 4.2 times the median. The closest in time, other companies' Series B rounds in Batteries:
| Company | Announced | Amount | Post-money | Led by |
|---|---|---|---|---|
| Batteries | 4 Dec 2023 | $30M | not disclosed | Toyota Ventures |
| Batteries | 5 Dec 2023 | $6.0M | not disclosed | not named |
| Batteries | 9 May 2024 | $36M | not disclosed | Robert Bosch Venture Capital and Khosla Ventures |
| Batteries | 11 Jun 2024 | $65M | not disclosed | LeapFrog Investments |
| Batteries | 13 Jun 2024 | $37M | not disclosed | Volta Energy Technologies |
| Batteries | 28 Jun 2024 | $17M | not disclosed | At One Ventures |
| Batteries | 12 Sep 2023 | $200M | not disclosed | Prime Movers Lab |
| Batteries | 25 Jul 2024 | $39M | not disclosed | GM Ventures and Deep Insight |
Sources
Where this comes from
Reported by 3 sources.
Questions
Frequently asked
How much did Antora raise in its Series B round?
Antora raised $150M in its Series B round, announced in Feb 2024.
Who led Antora's Series B round?
Decarbonization Partners led it, with Emerson Collective, GS Futures, The Nature Conservancy, NextEra Energy Resources, LLC and Trust Ventures and 7 more.
What was Antora's valuation at the Series B round?
It was not disclosed.
How does it compare with other Series B rounds in Batteries?
19 Series B rounds in Batteries within a year either side disclosed an amount; the median was $36M, and this round was 4.2 times the median.
Did Antora raise again after this round?
Yes: a Series C round in Jul 2026 of $550M at $2.47B post-money.