Cummins Inc.

What does Cummins own?
Cummins owns brands including Cummins engines and components, Accelera zero-emissions technology, Cummins Onan generators, Holset turbochargers, and the Eaton Cummins transmission joint venture. It separated its Fleetguard filtration business into Atmus Filtration Technologies in 2024.

Is Cummins publicly traded?
Yes. Cummins trades on the NYSE under ticker CMI and is a component of the S&P 500. Its shares are broadly held by institutional investors.

Who founded Cummins?
Clessie Cummins founded Cummins Engine Company in 1919 in Columbus, Indiana, with backing from banker William G. Irwin. It was renamed Cummins Inc. in 2001.

Where is Cummins headquartered?
Cummins is headquartered in Columbus, Indiana, USA, where it was founded and where it maintains its principal engineering and corporate operations.

Who owns Cummins?
Cummins is owned by its public shareholders with no controlling investor. Institutional holders including Vanguard and BlackRock are among the largest.

What is Cummins' revenue?
Cummins reported FY2025 revenues of $33.7 billion, down 1% year over year, with net income of $2.8 billion and diluted EPS of $20.50.

How many brands does Cummins own?
Cummins operates primarily under the Cummins master brand plus specialized brands including Accelera, Cummins Onan, Holset, and Endurant. The Fleetguard brand moved to Atmus Filtration Technologies in the 2024 separation.

Clessie Cummins founded Cummins Engine Company in 1919 in Columbus, Indiana, backed by banker William G. Irwin, on whose estate the early engines were tested. Cummins licensed Rudolf Diesel's technology and built one of the first successful American diesel engines, initially targeting stationary and marine applications.

The company's breakthrough came in the 1930s when Clessie Cummins demonstrated diesel efficiency through publicity drives, including a coast-to-coast run in a diesel-powered Packard. The H-series engine introduced in 1932 established Cummins in the trucking market. The NTC series introduced in 1955 made Cummins the leading heavy-duty truck engine maker in North America for decades.

International expansion followed, with manufacturing joint ventures in the UK, India, China, Brazil, and Mexico. The company diversified into filtration, turbochargers, alternators, and power generation, acquiring brands including Fleetguard filtration, Holset turbochargers, and Onan generators, the latter acquired in 1986.

In 2001 the company changed its name from Cummins Engine Company to Cummins Inc., reflecting its broadened portfolio beyond engines. In 2017 it formed the Eaton Cummins joint venture for automated transmissions. In 2024 it completed the separation of Atmus Filtration Technologies, its filtration business, distributing shares to Cummins shareholders and generating a $1.3 billion gain in FY2024 results.

The zero-emissions push began with the New Power segment in 2018, renamed Accelera in 2023 and made a reportable segment in 2024. In late 2025 the company initiated a strategic review of the electrolyzer business within Accelera in response to shifting hydrogen adoption expectations, recording $458 million in FY2025 charges, most of them non-cash.

Cummins frames its sustainability approach around Destination Zero, its strategy for reaching zero-emissions products while serving customers through the transition. The company has science-based targets for emissions reduction and reports progress on fleet electrification and hydrogen technology development.

Community investment is a longstanding pillar, particularly in Columbus, Indiana, where Cummins has famously funded architecture and civic projects for generations. The company is not a Certified B Corporation.

The Accelera segment's electrolyzer strategic review in 2025 illustrates the tension between sustainability ambition and market reality: the company is adjusting investment pace to actual hydrogen demand rather than maintaining spending on technology ahead of adoption.

• Fortune 500: Cummins ranks on the Fortune 500 by revenue.
• Barron's Top CEOs of 2025: Jennifer Rumsey was recognized among the year's top chief executives.
• Fortune World's Most Admired Companies: The company appears regularly in the industrial machinery category.
• S&P 500: Cummins is a component of the benchmark index.

Record Clean Air Act settlement (2023): In December 2023 Cummins agreed to pay a $1.675 billion civil penalty to resolve EPA allegations that it installed defeat devices in RAM truck engines that illegally bypassed emissions controls. It was the largest civil penalty ever paid under the Clean Air Act. The settlement covered approximately 630,000 vehicles and required a recall and software fix. Cummins did not admit wrongdoing but the penalty remains the company's most significant regulatory event.

Accelera electrolyzer impairment (2025): The $458 million in FY2025 charges for the electrolyzer business reflected over-investment relative to slower-than-expected hydrogen adoption, a strategic misstep the company acknowledged publicly while narrowing its zero-emissions focus.

Emissions regulation generally: As a diesel engine maker, Cummins operates under escalating emissions standards in the US, EU, and China, with compliance costs and technology risk embedded in the business model.