PENTAIR plc (PNR)

Pentair plc is an S&P 500 company focused on water solutions, helping to move, improve and enjoy water across residential, commercial and industrial uses. It is an Irish public limited company formed in 2014, successor to Pentair Ltd. (Switzerland, 2012) and Pentair, Inc. (Minnesota, 1966). Its stated priorities are growth in core businesses, digital innovation and sustainability investments, and margin expansion through a Transformation Program. In 2025 it acquired Hydra-Stop, a maker of specialty insertion valves, line stop fittings and installation equipment, for $292.1 million, and in December 2024 it acquired G & F Manufacturing, a maker and servicer of pool heat pumps, for $116.0 million.

Through 2025 the company reported three segments. Flow designs and sells fluid treatment and pump products, including pressure vessels, membrane filtration and bioreactors, wastewater reuse systems, gas recovery and separation solutions, specialty valves, various pumps and agricultural spray nozzles. Its brands include Aurora, Fairbanks-Nijhuis, Hydromatic, Hypro, Jung Pumpen, Myers and X-Flow. Water Solutions makes commercial and residential water treatment products such as pressure tanks, control valves, activated carbon products, filtration, point-of-entry and point-of-use systems, water softeners and commercial ice machines. Its brands include Everpure, Fleck, Manitowoc Ice, Pentek and RainSoft. Pool makes energy-efficient residential and commercial pool equipment, including pumps, filters, heaters, lights, controls, chlorinators and cleaners, under brands such as Pentair Pool, Kreepy Krauly, Pleatco and Sta-Rite. Flow sales were roughly 36% residential and irrigation, 30% commercial and infrastructure, and 34% industrial solutions. Water Solutions sales were roughly 66% commercial and 34% residential. Effective January 1, 2026, the residential and irrigation flow business moved from Flow to Water Solutions, and Pool is unchanged. On that basis, 2025 net sales were $4,176.0 million, with Flow $1,001.2 million, Water Solutions $1,614.5 million and Pool $1,558.8 million.

Customers include wholesale and retail distributors, end users, consumers and original equipment manufacturers across residential, agricultural, commercial, food and beverage, and industrial markets. One Pool customer accounted for about 18% of consolidated net sales in 2025 and 15% in 2024. Demand for residential water, agricultural, water treatment and pool products is seasonal and follows warm weather, peaking from April through August or September. Pool uses early-buy programs to partly offset the sales spike.

Pentair does its research and development mainly in its own facilities. Its principal materials are mild and stainless steel, electronic components including drives and motors, plastics, other metals and paint. These are bought on the open market, mostly from multiple sources, and it also buys some finished goods for resale. Metals and resins are subject to price swings, which are managed partly through long-term agreements with price adjustment clauses. In each segment the company competes with many domestic and international rivals, some with greater resources, on brand, product performance, quality, service and price. It had about 9,000 employees at the end of 2025, roughly 49% in the U.S. Its registered office is in Twickenham, London, and its U.S. management office is in Golden Valley, Minnesota. It is centrally managed from the U.K. and is tax resident there.