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Antora Energy
Sunnyvale, US · Founded 2018 · 275 employees on LinkedIn · 32 known investors
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Antora manufactures thermal battery systems for long-duration energy storage, serving manufacturers and data centers seeking to tap into low-cost renewable power. The company designs and produces American-made thermal batteries at scale to provide affordable, reliable energy storage for industrial and large-scale energy users.
Founders & leadership
Board
Investors · 32
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Also in the syndicate · 1
Funding
SEC filings, press & company announcements$529.3M disclosed across 2 of 5 rounds · 2024–2026
- Undisclosed amountSeries CJul 2026Source ↗
- Undisclosed amountSeries BFeb 2024
Decarbonization Partners (lead), BlackRock, Temasek
Source ↗
▶$457.6MraisedAug 2026 · 24 investors · OtherRule 506(b)
- Andrew PonecExecutive Officer, Director
- Justin BriggsExecutive Officer, Director
- David BiermanExecutive Officer, Director
- Christina KarapatakiDirector
- Clay DumasDirector
- Scott HimmelbergerDirector
- John WoolardDirector
- Joe FathDirector
- Brook PorterDirector
- Offering amount
- $550M
- Amount sold
- $457.6M
- First sale
- Jul 2026
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
▶$71.7MraisedNov 2025 · 26 investors · OtherRule 506(b)
- Andrew PonecExecutive Officer
- Offering amount
- $76.7M
- Amount sold
- $71.7M
- Minimum investment
- $74K
- First sale
- Jul 2025
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
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In the news
Frequently asked questions
- What does Antora Energy do?
- Antora manufactures thermal battery systems for long-duration energy storage, serving manufacturers and data centers seeking to tap into low-cost renewable power. The company designs and produces American-made thermal batteries at scale to provide affordable, reliable energy storage for industrial and large-scale energy users.
- Who founded Antora Energy?
- Antora Energy was founded by Andrew Ponec, David Bierman, Justin Briggs, David Bierman, Ph.D., Justin Briggs, Ph.D., Alfred Johnson, Allen Kramer in 2018.
- Who are Antora Energy's investors?
- Antora Energy's investors include Andreessen Horowitz, BlackRock, Temasek, Breakthrough Energy Ventures, Congruent Ventures, Creative Destruction Lab (CDL), Deepwater Asset Management, Fifty Years and 23 more.
- How much funding has Antora Energy raised?
- Antora Energy has disclosed $529.3M raised across 2 of its 5 known rounds.
- Where is Antora Energy headquartered?
- Antora Energy is headquartered in Sunnyvale, US.