Verified Nov 2026
Batteries & E-Mobility
·
Oakland, California
·
Since 2020
Rondo Energy is a technology company headquartered in Oakland, California, founded in 2020. It employs roughly 100 to 200 people, with estimated revenue of $10 to $50 million. The company develops electrified thermal energy storage systems that convert renewable electricity into high-temperature industrial heat, serving heavy industries including steel, cement, chemicals, and aluminum. In late 2025, its industrial heat battery began operating at a site in Thailand built with SCG.
Rondo Energy at a glance
Revenue
$10-50M
Est. band
Employees
100-200
Founded
2020
Headquarters
Oakland, California
Import activity
43
Industries
Automotive
Electric Vehicles
Construction
Renewable Energy
Industrial Equipment
Consumer Goods
Sourcing and import activity
From US customs bill-of-lading records
US sea imports
43
Named foreign suppliers
13
Top origins
Thailand · China · Hong Kong S.A.R. · Spain
Shared foreign counterparties do not establish that these companies buy from Rondo Energy.
What this tells a buyer
No customs or trade shipment data is available for the company, but its most recent reported development is the start of a 30 MW thermal storage project at Rio Tinto's Yarwun alumina refinery, reported in October 2026.
Its flagship Rondo Heat Battery is positioned for converting renewable electricity into industrial heat, steam, or power, and the company also offers a heat-as-a-service model, with no certifications listed in the record.
The company is privately held and reports work with industrial partners including Covestro on a 100 MWh thermal storage site in Brunsbüttel and Rio Tinto on a 30 MW project in Australia.
Source: US customs bill-of-lading records and public filings · Last verified Nov 05, 2026
Overview
Rondo Energy is a technology company headquartered in Oakland, California, founded in 2020. It employs roughly 100 to 200 people, with estimated revenue of $10 to $50 million. The company develops electrified thermal energy storage systems that convert renewable electricity into high-temperature industrial heat, serving heavy industries including steel, cement, chemicals, and aluminum. In late 2025, its industrial heat battery began operating at a site in Thailand built with SCG.
At a glance
Attribute | Detail |
|---|---|
Founded | 2020 |
Headquarters | Oakland, California |
Employees | 100-200 |
Revenue | $10-50M (estimated) |
Primary capability | Batteries & E-Mobility |
What Rondo Energy makes
Its flagship Rondo Heat Battery is positioned for converting renewable electricity into industrial heat, steam, or power, and the company also offers a heat-as-a-service model, with no certifications listed in the record.
Products and capabilities described on the company's own site include Battery, Emissions, Aluminum, Steel (source: rondo.com).
Trade and customs footprint
No customs or trade shipment data is available for the company, but its most recent reported development is the start of a 30 MW thermal storage project at Rio Tinto's Yarwun alumina refinery, reported in October 2026. US customs bill-of-lading records list 43 inbound shipments across 13 foreign suppliers, with top origins including Thailand · China · Hong Kong S.A.R. · Spain.
Latest developments
2026-10-30 — 【SMM Aluminum Flash News】Rio Tinto and Rondo Energy Start 30 MW Thermal Storage Project at Yarwun Alumina Refinery - Shanghai Metals Market (SMM) (metal.com)
2026-10-21 — Rondo Energy and Rio Tinto Advance Australia's Largest Thermal Energy Storage Project - Rondo Energy (rondo.com)
2026-01-20 — Rondo, Covestro begin work on 100MWh thermal storage site - Energy-Storage.News (energy-storage.news)
2026-01-19 — Groundbreaking for Innovative Heat Battery at Covestro's Brunsbüttel Site - Rondo Energy (rondo.com)
2025-11-14 — Southeast Asia’s First Industrial Heat Battery Now Operating in Thailand, Built by Rondo Energy and SCG - Rondo Energy (rondo.com)
2025-11-03 — Rondo Energy to deploy 100 MWh heat battery for HEINEKEN, powered by solar from EDP - Rondo Energy (rondo.com)
Facilities
Rondo Energy is headquartered in Oakland, California. Public sources also reference these locations:
Company details
The company is privately held and reports work with industrial partners including Covestro on a 100 MWh thermal storage site in Brunsbüttel and Rio Tinto on a 30 MW project in Australia. Rondo Energy was founded in 2020, has an estimated 100-200 employees, and is headquartered in Oakland, California.
Frequently asked questions
What does Rondo Energy make?
Rondo Energy is a technology company headquartered in Oakland, California, founded in 2020. It employs roughly 100 to 200 people, with estimated revenue of $10 to $50 million. The company develops electrified thermal energy storage systems that convert renewable electricity into high-temperature industrial heat, serving heavy industries including steel, cement, chemicals, and aluminum. In late 2025, its industrial heat battery began operating at a site in Thailand built with SCG.
Where is Rondo Energy headquartered?
Rondo Energy is headquartered in Oakland, California.
When was Rondo Energy founded?
Rondo Energy was founded in 2020.
How big is Rondo Energy?
Rondo Energy has an estimated 100-200 employees, with revenue in the $10-50M range (estimated).
Does Rondo Energy import from overseas suppliers?
US customs bill-of-lading records show 43 inbound shipments for Rondo Energy, with top origins including Thailand · China · Hong Kong S.A.R. · Spain.
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Last verified Nov 2026. Is this your company? Request a correction.
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