Parker-Hannifin Corp acquired Filtration Group Corporation for $9.25 billion in cash (cash-free, debt-free basis, subject to net working capital adjustment), a transaction announced in November 2025, structured as all cash.
Filtration Group Corporation operates in Filtration Group, is based in Headquartered in Oakbrook Terrace, Illinois; global operations, had revenue of about approximately $2 billion expected calendar-year 2025 sales. Filtration Group Corporation, a private company headquartered in Oakbrook Terrace, Illinois (affiliated with Madison Industries), provides complementary and proprietary filtration technologies for critical applications. Expected calendar-year 2025 sales of approximately $2 billion with approximately 7,500 employees, serving Life Sciences, HVAC/R, and in-plant and industrial verticals, with roughly 85% aftermarket sales. The pre-closing transfer of Filtration Group's Facet Filtration business to its stockholders is a closing condition.
Continues Parker's investment in high-quality businesses that transform its portfolio, accelerate sales growth and improve profitability; significantly expands Parker's filtration offering and recurring aftermarket business.
Large, high-margin filtration platform with ~85% aftermarket sales across resilient life sciences, HVAC/R and industrial markets. Approximately $220 million in pre-tax cost synergies expected by the end of year three. Expands Parker's Filtration Group
This strategic transaction continues our investment in high quality businesses that continue to transform our portfolio, accelerate sales growth and improve profitability.Jenny Parmentier, Chairman of the Board and CEO, Parker Hannifin (November 11, 2025 press release)
Together, our mission-critical offering of advanced filtration technologies will create a broader portfolio of solutions for customers in key growth markets around the world.Jon Pratt, President and CEO, Filtration Group
Advisory firms were not disclosed for this transaction.