Funding round
Antora Series C
Antora, which works in thermal energy storage solutions in Sunnyvale, raised $550M in a Series C round announced on 30 Jul 2026, led by G2 Venture Partners and Eclipse, at a $2.47B post-money valuation. 13 firms took part, 7 of them already investors, with 1 individual investor. It is Antora's third venture round on record; the one before was a Series B in Feb 2024.
$550M
Amount raised
$2.47B
Post-money valuation
13
Investors
2 leads
22%
Stake sold
new money over the post-money
Valuation
What this round says about the price
This round priced Antora at $2.47B after the new money. The $550M bought investors about 22% of the company. It came 29 months after Antora's Series B. It is 73% of the $750M Antora has raised in the venture rounds on record. No later venture round is on record for Antora.
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 22 Feb 2024, led by Decarbonization Partners $150M
- Grant not a venture round 25 Jun 2024 $15M
- Series C this round 30 Jul 2026, led by G2 Venture Partners and Eclipse $550M$2.47B post-money
Investors
Who put money in
G2 Venture Partners and Eclipse led the round with 11 other firms. G2 Venture Partners, Eclipse, Decarbonization Partners and Impact Science Ventures and 3 more had backed Antora before.
Lead investors
- backs 33 venture-backed companies existing investor
- Eclipse backs 79 venture-backed companies existing investor
Also in the round
- Ribbit backs 126 venture-backed companies new investor
- Salesforce Ventures backs 314 venture-backed companies new investor
- backs 29 venture-backed companies new investor
- backs 22 venture-backed companies new investor
- StepStone Group new investor
- backs 18 venture-backed companies new investor
- Decarbonization Partners existing investor
- backs 10 venture-backed companies existing investor
- Trust Ventures existing investor
- Breakthrough Energy backs 113 venture-backed companies existing investor
- Lowercarbon Capital backs 110 venture-backed companies existing investor
Individual investors: John Doerr.
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
6 Series C rounds in Batteries within a year either side disclosed an amount; the median was $59M, and this round was 9.3 times the median. The closest in time, other companies' Series C rounds in Batteries:
| Company | Announced | Amount | Post-money | Led by |
|---|---|---|---|---|
| Batteries | 21 Aug 2026 | $20M | $430M | Rising Tide Ventures |
| Batteries | 6 May 2026 | $60M | $1.00B | Symbotic |
| Batteries | 1 May 2026 | $58M | $1.17B | Samsung Venture Investment |
| Batteries | 8 Apr 2026 | $141M | not disclosed | Khosla Ventures |
| Lunar Energy Batteries | 4 Feb 2026 | $130M | not disclosed | Activate Capital |
| Batteries | 31 Oct 2025 | $12M | not disclosed | Yotta Capital Partners |
Sources
Where this comes from
Reported by 7 sources.
Questions
Frequently asked
How much did Antora raise in its Series C round?
Antora raised $550M in its Series C round, announced in Jul 2026.
Who led Antora's Series C round?
G2 Venture Partners and Eclipse led it, with Ribbit, Salesforce Ventures, Activate Capital, The Westly Group and StepStone Group and 6 more.
What was Antora's valuation at the Series C round?
$2.47B post-money.
How does it compare with other Series C rounds in Batteries?
6 Series C rounds in Batteries within a year either side disclosed an amount; the median was $59M, and this round was 9.3 times the median.