Parker Hannifin makes the parts that make machines move. It designs and manufactures thousands of components, from hydraulic pumps and fuel system valves to filtration systems and electromechanical actuators, and sells them to manufacturers of airplanes, factory equipment, trucks, and energy systems around the world. The Diversified Industrial segment, which covers everything from off-highway vehicles to HVAC systems, brought in 69 percent of the company's $19.9 billion in net sales in fiscal year 2025. The Aerospace Systems segment, which makes flight control systems, fuel components, and braking systems for commercial and military aircraft, contributed the remaining 31 percent. Parker earns money two ways: when a manufacturer first builds a machine and needs Parker's parts, and again when those parts wear out and need replacing in the aftermarket. The diagram below traces where the money goes.
Five years of financial data tell a clear story about where Parker has been and where it is heading. Revenue climbed from $14.3 billion in 2021 to $19.9 billion in 2025, a jump driven partly by organic growth and partly by the September 2022 acquisition of Meggitt, a British aerospace and defense supplier. That deal also explains why net debt spiked from $5.9 billion in 2021 to $10.9 billion in 2022. Parker has been paying that debt down ever since, reaching $7.0 billion by the end of fiscal 2025.
The more telling number is not revenue but margin. Gross margin, the share of each sales dollar left after making the product, has improved every single year: from 33.1 percent in 2021 to 36.9 percent in 2025. That consistent improvement, even as raw material costs swung around and currency rates shifted, reflects what Parker calls the Win Strategy, an internal playbook focused on pricing discipline, product mix, and cost control. Free cash flow (money left over after running the business and maintaining its factories) has also grown steadily, from $2.4 billion in 2021 to $3.3 billion in 2025.
The Aerospace Systems segment is the fastest-moving part of the business right now. Its sales rose from $5.5 billion in 2024 to $6.2 billion in 2025, and its operating margin expanded from 20.3 percent to 23.3 percent in a single year. Backlog in that segment reached $7.4 billion at June 30, 2025, up from $6.7 billion a year earlier, meaning orders are arriving faster than the company can ship them. The commercial and defense aftermarkets are the main drivers: planes already flying need Parker's replacement parts, and that business tends to carry higher margins than selling new parts to aircraft manufacturers.
The Diversified Industrial segment tells a different story for now. Its sales fell 5.5 percent in fiscal 2025, with weakness in off-highway, transportation, and European industrial markets. Parker divested several non-core businesses during the year, including a composites and fuel containment unit, which stripped out roughly $295 million of sales. Strip out divestitures and currency effects, and the underlying industrial business still shrank about 3 percent. That segment's backlog dropped from $4.2 billion at the end of fiscal 2024 to $3.7 billion at the end of fiscal 2025, a signal that near-term industrial demand remains soft.
Parker has paid a dividend every quarter for 300 consecutive quarters and has raised it every year for 69 consecutive years. The current annual dividend rate is $7.20 per common share. The company also repurchased 2.5 million common shares for $1.6 billion in fiscal 2025. Both programs together represent a significant and ongoing use of the free cash flow the business generates.
Several documented risks sit inside this business. The first is tariffs and trade policy. Parker does about 36 percent of its business outside the United States, and trade restrictions, especially between the U.S. and China, can raise the cost of raw materials and components without a guaranteed ability to pass those costs to customers. The second is raw material prices. Parker relies on steel, aluminum, copper, rubber, and other commodities that have moved sharply in the past and could do so again. The third is cybersecurity. Parker depends on computer systems, some managed by outside parties, and a serious breach could disrupt operations and expose sensitive customer data. The fourth is goodwill. Parker's balance sheet carries significant goodwill from past acquisitions, and if business conditions weaken or results disappoint, a write-down could reduce reported earnings materially. Finally, Parker has agreed to acquire Curtis Instruments for approximately $1.0 billion in cash, pending regulatory approval. If that deal runs into integration problems, it could distract management and weigh on results.
The two segments are pulling in different directions at the moment. Aerospace is growing and expanding margins. Industrial is shrinking in volume, though its margins also improved in 2025 thanks to pricing and cost control. The question for the next two or three years is whether industrial demand recovers as manufacturing cycles turn, or stays suppressed long enough to matter.