Cummins Inc.
Explore Cummins
Core profile pages, annual revenue records, and related research hubs for this company.
Cummins Inc.
Explore Cummins
Core profile pages, annual revenue records, and related research hubs for this company.
Company History
Founded 1919 in Columbus, Indiana
Founded in Columbus, Indiana in 1919 by Clessie Lyle Cummins and William G. Irwin, the company has spent 105 years building the metallurgical and thermal engineering expertise that makes its diesel engines the benchmark for durability in commercial trucking. The original product was a diesel engine — a technology that was well-established in Europe but largely unused in American trucks at the time. International expansion began in the 1950s with a UK acquisition that gave Cummins a European manufacturing presence and access to British commercial vehicle manufacturers.
Clessie Lyle Cummins was the visionary inventor and primary founder of the Cummins Engine Company, which later became Cummins Inc. Working out of a rudimentary garage in post-WWI Columbus, Indiana, Cummins was tasked with developing a high-speed diesel engine that could power agricultural and industrial equipment, a project that was considered physically impossible by the established engineering community. After several catastrophic failures that nearly bankrupted the startup, Cummins finalized a revolutionary fuel injection pump design in 1919, creating the first viable high-speed diesel engine in American history that perfectly met the demands of early commercial operators. His most critical strategic decision, made in the late 1920s, was to pivot the company's focus from agricultural implements to marine and heavy-duty truck applications, a move that avoided the 20-year expiration clause of agricultural patents and created a perpetual monopoly on high-speed diesel efficiency, a decision that remains the foundation of the company's $42 billion market capitalization and 40% market share in the heavy-duty engine category. Although Cummins eventually stepped back from daily operations as the company grew under the financial stewardship of William G. Irwin and later J. Irwin Miller, his mechanical genius and insistence on vertical integration and thermal efficiency remain the foundation of the company's success, a testament to the enduring power of a simple, effective solution to a universal problem and the strategic brilliance of protecting that solution through continuous R&D rather than subjecting it to the limitations of the patent system. The legacy of Clessie Cummins lives on in every cast-iron engine block forged around the world, a legacy of resilience, innovation, and strategic brilliance that has allowed the company to thrive for over a century.
Clessie Cummins and William G. Irwin found the Cummins Engine Company in Columbus, Indiana, and successfully develop the first viable high-speed diesel engine in America, saving the startup from bankruptcy after several catastrophic prototype failures.
Following the onset of the Great Depression, the company pivots from agricultural implements to marine and heavy-duty truck applications, a decision that saved the company and established the foundation for a global industrial powerhouse.
Cummins engines power a truck on the first-ever cross-country diesel truck trip from Indianapolis to New York, proving the viability of diesel for commercial freight and generating massive word-of-mouth growth through the trucking industry.
Cummins acquires a manufacturing facility in Shotts, Scotland, marking its first major international expansion and establishing the template for future localized manufacturing footprints in key global markets.
The company acquires the Fleetguard filtration brand, marking its first major vertical integration beyond the core engine block and creating a high-margin consumables revenue stream that would generate billions in recurring aftermarket revenue.
Cummins launches the revolutionary ISX heavy-duty engine, which becomes the best-selling Class 8 engine in North American history, solidifying the company's 40% market share and dominance in the long-haul trucking segment.
Cummins formally organizes its generator set and alternator businesses into the Power Systems segment, aggressively entering the critical infrastructure and data center backup power market to diversify beyond commercial vehicles.
The company executes a major redesign of its flagship heavy-duty engine, introducing the X15 Efficiency Series to meet strict EPA 2017 emissions standards while improving fuel economy by 3%, capturing massive market share from competitors struggling with compliance.
Jennifer Rumsey becomes CEO and the company formally launches the Accelera division, committing $1 billion to commercialize hydrogen fuel cells, electrolyzers, and battery electric axles to own the next century of industrial power.
Cummins reports FY2024 net sales of $34.102 billion and $3.946 billion in net income attributable to Cummins Inc., reflecting the strength of its integrated business model before weaker truck demand pressured FY2025 sales.
Cummins reports FY2025 net sales of $33.670B and net income attributable to Cummins Inc. of $2.843B, with Power Systems and Distribution strength offsetting weaker North American truck markets.
Cummins acquired Fleetguard to vertically integrate its filtration and exhaust aftertreatment technologies, securing control over the mandatory maintenance cycle of every diesel engine sold and eliminating reliance on third-party suppliers for critical emissions compliance components.
Cummins acquired Onan to aggressively expand its footprint in the power generation market, specifically targeting the high-horsepower, critical infrastructure backup power segment for data centers, healthcare facilities, and telecommunications towers.
Cummins acquired the diesel fuel systems and filtration business from Johnson Controls to secure proprietary fuel injection technologies and expand its aftermarket footprint in the European and Asian markets.
Cummins initially formed a joint venture with Westport to develop natural gas engines, eventually acquiring full control of the heavy-duty natural gas technology to dominate the vocational and transit bus segments requiring low-emission alternatives to diesel.
Cummins traces its origins to 1919, with Clessie Lyle Cummins and William G. Irwin tied to the founding story.
Cummins' diesel truck success gave it a durable role in commercial transportation and industrial power.
Cummins expanded by building engines, generators, power systems, filtration, turbochargers, emissions systems, batteries, and hydrogen electrolyzers, serving truck makers, fleet operators, miners, construction firms, utilities, data centers, and industrial customers, and using engine efficiency, aftermarket service, emissions compliance, power systems, and hydrogen or electrified products.
This Cummins history page covers founding, growth milestones, leadership changes, and modern strategic context.