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Infinitum Electric
Infinitum Electric replaces the iron-core motor stator with a printed circuit board, attracting $80M from Caterpillar and energy investors.
Infinitum Electric
Infinitum Electric emerged from Austin, Texas, with a founding insight that the heaviest, costliest part of an industrial motor — the iron-core stator — could be replaced by a lightweight printed circuit board. The company set out to make electric motors smaller, quieter, and radically more efficient for commercial HVAC, data center cooling, and industrial applications. The company's air-core motor design cuts motor weight and copper use while improving efficiency, particularly at variable speeds. Infinitum targets the massive installed base of motors in the built environment and industrial automation. Its strategy spans product sales of integrated motor systems and licensing its stator technology to established manufacturers. In November 2021, the firm raised $80 million in Series D financing led by Riverstone Holdings and including Caterpillar Venture Capital and Alliance Resource Partners, signaling adoption across both energy-transition and heavy-industry supply chains (per company announcement, 2021). It has also secured a distribution deal with the Japanese trading house Marubeni for the Asian market. Headquartered in Round Rock, Texas, with an engineering office in Milwaukee, the firm's team has grown alongside its funding rounds. The Series D infusion was earmarked to scale production and meet a reported order backlog. The company's expansion has been closely tied to the Inflation Reduction Act's incentives for high-efficiency motor manufacturing, which shifts the economics of domestic production. Infinitum's structural difference is its asset-light licensing model layered on top of direct product manufacturing. Unlike incumbent motor manufacturers with foundries and iron-laminated stator lines, Infinitum's printed-circuit-board stator can be produced on standard PCB fabrication equipment. This allows the company to serve as a component supplier and design licensor to other motor manufacturers, not just a competing product brand, creating an unusual co-opetitive posture in a legacy-heavy industrial segment.
General information
Firm type
Family Office
Year founded
—
AUM
Undisclosed
Location
Region
North America
Country
United States
City
Round Rock
Corporate office
Round Rock, TX, United States
Additional offices
Milwaukee, WI
Sector focus
Frequently asked questions
What does Infinitum Electric manufacture?
Infinitum Electric designs and manufactures high-efficiency electric motors that replace a traditional iron-core stator with a printed circuit board. This air-core motor design serves the commercial HVAC, industrial automation, and data center cooling markets, where lighter weight and variable-speed efficiency translate directly into energy savings.
Who are Infinitum Electric's largest financial backers?
The firm's most recent major round was an $80 million Series D in 2021 led by Riverstone Holdings, with participation from Caterpillar Venture Capital, Alliance Resource Partners, Cottonwood Technology Fund, and Chevron Technology Ventures (per company announcement, 2021). The round included both financial and strategic investors from heavy industry and energy.
How does the PCB stator motor differ from a conventional motor?
A conventional motor uses a heavy iron core with copper windings to generate the electromagnetic field. Infinitum's design etches the copper traces directly onto a printed circuit board, eliminating the iron core. This reduces the motor's weight, cuts copper usage, and yields higher efficiency across a wider range of operating speeds.
What is Infinitum's business model — does it sell motors or license technology?
Infinitum operates a hybrid model. It sells complete integrated motor-and-drive systems directly to end users through channels, and it also licenses its stator technology to established motor manufacturers who can integrate it into existing product lines. This dual approach allows the company to address the market both as a product company and as a component supplier.
Where are Infinitum Electric's facilities located?
The company is headquartered in Round Rock, Texas, near Austin, which serves as its engineering and product-development center. It maintains an additional office in Milwaukee, Wisconsin, a historic hub of US motor manufacturing, providing access to legacy industrial supply chains and electromechanical engineering talent.
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