# Antora Energy

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/antora-energy

- Industry: Renewable Energy
- Headquarters: Sunnyvale, US
- Website: www.antora.com
- Total disclosed funding: $639M
- Latest round: Series C (Jul 20, 2026)
- Investors on record: 22

## About

Antora Energy, based in Sunnyvale, CA, specializes in advanced thermal energy storage solutions that convert surplus clean electricity into reliable energy for industrial applications.Founded in 2018, Antora Energy, Inc. focuses on thermal energy storage solutions. The company was established by Andrew Ponec, David Bierman, and Justin Briggs. It operates from its headquarters in Sunnyvale, California. Their core product utilizes solid carbon blocks to store energy in the form of heat, ensuring reliable multi-day energy availability for industries where operational continuity is critical, such as food and beverage, datacenters, chemicals, mining, and refining. These factory-built, modular units are engineered for rapid deployment and seamless integration with existing power systems, helping various sectors manage energy demands efficiently. Antora's technology targets markets across North America and Europe, catering to a diverse client base that includes large-scale industrial operations requiring substantial thermal energy management. Antora's revenue generation is primarily structured around B2B transactions with industrial clients leveraging their thermal energy storage solutions. The company engages in partnerships and direct sales with businesses in industries such as renewable fuels and steel refining, providing customers with tailored modular energy storage systems. Pricing structures are based on the scale of energy solutions deployed, with contracts reflecting the specific energy requirements and integration complexities of each client. Antora’s flagship offerings are designed to provide predictable energy costs, appealing to industries facing fluctuating energy prices. Transactions typically involve long-term agreements that ensure consistent support and operational redundancy for clients’ energy needs.

## Funding rounds

- Series C, Jul 20, 2026, $458M — StepStone, The Westly Group, Ribbit Capital, Salesforce Ventures, Eclipse Ventures, Breakthrough Energy Ventures, Liberty Mutual Strategic Ventures, G2 Venture Partners, Activate Capital, Trust Ventures, Lowercarbon Capital, Impact Science Ventures, Decarbonization Partners
- Series B, Feb 6, 2024, $164M — The Nature Conservancy, Breakthrough Energy Ventures, Grok Ventures, Emerson Collective, NextEra Energy Resources, LLC, Trust Ventures, Lowercarbon Capital, GS Futures, BHP Ventures, Overture, Decarbonization Partners
- Series A, Oct 4, 2021, $18M — Shell Ventures, Breakthrough Energy Ventures, Grok Ventures, Trust Ventures, Fifty Years, Lowercarbon Capital, BHP Ventures, Impact Science Ventures, Overture

## Investors

- Shell Ventures (https://capitalatlas.ai/funds/shell-ventures) — Series A
- Breakthrough Energy Ventures (https://capitalatlas.ai/funds/breakthrough-energy-ventures) — Series A, Series B, Series C
- Grok Ventures — Series A, Series B
- Trust Ventures (https://capitalatlas.ai/funds/trust-ventures) — Series A, Series B, Series C
- Fifty Years (https://capitalatlas.ai/funds/fifty-years) — Series A
- Lowercarbon Capital (https://capitalatlas.ai/funds/lowercarbon-capital) — Series A, Series B, Series C
- BHP Ventures (https://capitalatlas.ai/funds/bhp-ventures) — Series A, Series B
- Impact Science Ventures (https://capitalatlas.ai/funds/impact-science-ventures) — Series A, Series C
- Overture (https://capitalatlas.ai/funds/overture) — Series A, Series B
- The Nature Conservancy — Series B
- Emerson Collective — Series B
- NextEra Energy Resources, LLC — Series B
- GS Futures (https://capitalatlas.ai/funds/gs-futures) — Series B
- Decarbonization Partners (https://capitalatlas.ai/funds/decarbonization-partners) — Series B, Series C
- StepStone (https://capitalatlas.ai/funds/stepstone) — Series C
- The Westly Group (https://capitalatlas.ai/funds/the-westly-group) — Series C
- Ribbit Capital (https://capitalatlas.ai/funds/ribbit-capital) — Series C
- Salesforce Ventures (https://capitalatlas.ai/funds/salesforce-ventures) — Series C
- Eclipse Ventures (https://capitalatlas.ai/funds/eclipse-ventures) — Series C
- Liberty Mutual Strategic Ventures (https://capitalatlas.ai/funds/liberty-mutual-strategic-ventures) — Series C
- G2 Venture Partners (https://capitalatlas.ai/funds/g2-venture-partners) — Series C
- Activate Capital (https://capitalatlas.ai/funds/activate-capital) — Series C