Parker-Hannifin Corp (PH)

How it makes money

Revenue comes from selling physical components and systems, in two waves. The first is the original-equipment sale: Parker's part is designed into a machine or an aircraft programme and then ships for years as that platform is built. The second is the aftermarket: the same parts wear out and are replaced through a worldwide network of independent distributors on the industrial side, and sold directly to airlines and operators as spares and maintenance on the aerospace side. Aerospace work in particular carries long programme lifecycles, so an engine or airframe win produces decades of spare-part and repair revenue. The filing notes that no single product contributed more than one percent of total net sales in fiscal 2026 — the business is an enormous catalogue of small items rather than a few big ones.

Revenue by segment

Parker's advantage is that its parts are specified into someone else's design. Once a hydraulic circuit, a seal or a fuel pump is qualified into a machine or an aircraft, swapping it means re-engineering and, in aerospace, re-certifying the platform — so the component keeps shipping for the life of the programme and then again as a spare. Two further things reinforce this: the breadth of the catalogue, where no single product is even one percent of sales, which makes Parker a one-stop supplier that a distributor or an OEM can standardise on, and the certified aerospace aftermarket, where only approved parts may be fitted. The counterweight is real competition in commodity industrial components, where many products face substitutes and price pressure.

Two thirds of sales sit in industrial end markets — construction and agricultural machinery, factory automation, trucks, energy, refrigeration — whose demand follows capital spending and moves with the industrial cycle; the company itself names cyclicality as a disclosed risk. Two things soften the swing. Replacement demand through distributors keeps flowing even when new-machine orders stall, because installed equipment still wears out. And the aerospace third of the business runs on a different clock: aircraft build rates and defence budgets, plus a spares and maintenance stream tied to flying hours rather than to new orders. Fiscal 2026 was an up-leg of that cycle, with sales rising 8.3 percent and organic growth of 6.6 percent.

Key risks

• Cyclical and uncertain end-market demand — The company discloses that macroeconomic uncertainty and the cyclical nature of the markets it serves can cause demand for its products to fluctuate, and that shifts in supply and demand may not be matched by its production and inventory decisions.
• International operations and geopolitical exposure — A large part of sales is made outside the United States, exposing the company to currency movements, trade and tariff measures, political instability and differing legal and regulatory regimes in the countries where it manufactures and sells.
• Raw material cost and supply availability — The company identifies volatility in the price and availability of raw materials and purchased components, and disruption of its supply chain, as risks to its cost structure and its ability to deliver on time.
• Competition and the need to keep developing new products — Parker discloses that it competes in highly competitive markets and that failing to develop new products, or to bring them to market ahead of competitors, could cost it business.
• Acquisitions and their integration — Growth partly depends on acquisitions; the company discloses the risk that it may not identify suitable targets, may not integrate acquired businesses successfully, and may not realise the benefits it expected from them.
• Cybersecurity and information systems — The company discloses that cyber attacks, data breaches or failures of its information technology systems could disrupt operations, compromise confidential information and expose it to liability.

The fiscal 2026 filing does not quantify how much of sales the largest customers represent. What it does say points to an unusually spread-out customer base: Parker serves several hundred thousand OEM and distributor customer locations, and no single product contributed more than one percent of total net sales in the year. In earlier filings the company stated that no single customer accounted for more than a low single-digit share of net sales, but that figure is not repeated for fiscal 2026, so treat concentration as undisclosed rather than measured.