Donaldson makes $820M deal to buy another filtration business

Bloomington-based Donaldson agrees to acquire Filtration Group’s Facet Filtration business.

The Minnesota Star Tribune
February 2, 2026 at 6:20PM
Tod Carpenter, CEO of Donaldson Co., said the acquisition of Facet will strengthen and diversify the company's core product portfolio. (Alex Kormann)

Donaldson Co. has signed an $820 million deal to buy a fuel and fluid filtration business that mostly serves the aviation and marine industries.

Bloomington-based Donaldson expects the acquisition of Filtration Group’s Facet business to add about $110 million to Donaldson’s annual sales.

“Facet is a valuable, strategic addition to our Industrial Solutions business,” said Tod Carpenter, chief executive of Donaldson.

Founded in 1943, Facet mostly serves the aviation and marine industries in the U.S. and Europe.

Facet also fits with Donaldson’s business model, which is similar to selling razors to sell razor blades. About 70% of Facet’s annual revenue is from consumables that are required to be replaced at scheduled intervals due to regulations.

“This acquisition strengthens and diversifies our core product portfolio with new capabilities in fuel and fluid filtration including jet fuel filtration,” Carpenter said.

Donaldson Co, based in Bloomington, has made several acquisitions in the past decade. It is making another. (Alex Kormann)

Donaldson is a filtration company with 150 locations among its global operations. It provides air, gas, fluid and hydraulic filtration products in three main business segments: Mobile Solutions; Industrial Solutions and Life Sciences.

It serves commercial trucking, heavy equipment, power industries, natural gas, food and beverage, and bioprocessing industries among others.

Facet was part of Madison Industries’ Filtration Group. In November, Madison made a $9.25 billion deal to sell the unit to Parker-Hannifin Corp., but Facet was not included in the acquisition.

Madison Industries is a privately held holding company with dozens of subsidiary companies.

“Facet’s growth over the past several years has been truly remarkable, and we are thrilled to have found the perfect home for Facet’s customers and team members,” said Larry Gies, founder and CEO of Madison Industries, in a news release.

Facet is based in Tulsa, Okla., and has 236 employees in the United States and Europe with manufacturing operations in Oklahoma and Spain.

Donaldson’s share price closed Friday near all time highs at $101.94 a share. Shares were down slightly on Monday after the deal for Facet was announced.

When this deal closes it will be the largest deal under Tod Carpenter’s tenure and in Donaldson history.

Last week Carpenter announced he was retiring as president and CEO but would remain as executive chair. Richard Lewis, currently Donaldson’s chief operating officer, will succeed Carpenter in March.

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Patrick Kennedy

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Business reporter Patrick Kennedy covers executive compensation and public companies. He has reported on the Minnesota business community for more than 25 years.

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