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The great filtration consolidation

The great filtration consolidation

Money Moves

A $15 billion acquisition spree across 12 months consolidates industrial filtration for buildings, factories, and data centers

February 2nd, 2026: Donaldson to Acquire Facet for $820 Million

Overview

Over the past 12 months, four major deals totaling over $15 billion have transformed the industrial filtration industry. Parker Hannifin agreed to pay $9.25 billion for Filtration Group in November 2025 (pending regulatory approval).

Thermo Fisher acquired Solventum's filtration unit for $4.1 billion in February 2025. Atmus Filtration closed its $450 million purchase of Koch Filter on January 7, 2026.

On February 2, 2026, Filtration Group agreed to sell its Facet aviation fuel filtration business to Donaldson Company for $820 million.

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Key Indicators

$15B+
Combined deal value in 12 months
Four major acquisitions from February 2025 to February 2026, including Donaldson's $820M Facet deal.
4
Major deals in 12 months
Parker-Filtration Group, Thermo-Solventum, Atmus-Koch, Donaldson-Facet reshape market leadership.
$68B
Industrial filtration market by 2034
From $40 billion in 2025, growing at 5.2% annually as data centers and regulations drive demand.
20.0x
EBITDA multiple for Facet deal
Donaldson pays premium for aviation fuel filtration, expanding mission-critical aftermarket revenue.

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People Involved

Organizations Involved

Timeline

March 2024 February 2026

8 events Latest: February 2nd, 2026 · 4 months ago
Tap a bar to jump to that date
  1. Donaldson to Acquire Facet for $820 Million

    Latest M&A

    Filtration Group agrees to sell its aviation fuel and fluid filtration business Facet to Donaldson Company for $820M (20x 2025 EBITDA), adding $110M annual sales and strengthening aftermarket presence.

  2. Atmus Closes Koch Filter Acquisition

    M&A

    Transaction completed at $450 million, Koch integrated into new Industrial Solutions segment led by Rakesh Gangwani.

  3. Atmus to Acquire Koch Filter for $450 Million

    M&A

    Atmus announces purchase of Koch Filter from Truelink's ADTi to establish industrial air filtration platform.

  4. Parker Hannifin Announces Record $9.25B Filtration Group Buy

    M&A

    Parker agrees to acquire Filtration Group from Madison Industries, creating one of world's largest filtration businesses.

  5. Thermo Fisher Closes Solventum Acquisition

    M&A

    Deal closed at $4.0 billion after adjustments, integrated into Life Sciences Solutions segment.

  6. Thermo Fisher Announces $4.1B Solventum Filtration Deal

    M&A

    Thermo Fisher agrees to acquire Solventum's Purification & Filtration business serving biopharma and industrial markets.

  7. Truelink Capital Acquires Air Distribution Technologies

    M&A

    Truelink bought ADTi from Johnson Controls, including Koch Filter and other HVAC brands.

  8. Atmus Becomes Fully Independent from Cummins

    Corporate

    Cummins completed exchange offer, spinning off remaining 80.5% stake in Atmus Filtration Technologies.

Historical Context

3 moments from history that rhyme with this story — and how they unfolded.

1995-2005

Waste Management Industry Consolidation (1995-2005)

Waste Management Inc. embarked on aggressive acquisition strategy, buying hundreds of local and regional waste haulers. Republic Services and other large players followed suit, acquiring smaller operators to achieve route density, purchasing power, and disposal capacity scale. The fragmented industry with thousands of mom-and-pop operators transformed into an oligopoly dominated by a few large public companies. Deals involved similar strategic logic: consolidate fragmented services, achieve operational synergies, and build recurring revenue through service contracts.

Then

Hundreds of small waste companies disappeared through acquisition or competitive pressure.

Now

Three major players now control most of the U.S. market, with pricing power and stable margins.

Why this matters now

Industrial filtration follows similar pattern: fragmented industry, recurring revenue model through filter replacements, and strategic buyers with capital seeking operational synergies through consolidation.

2015-2023

HVAC Distribution Consolidation (2015-2023)

Private equity firms rolled up hundreds of independent HVAC distributors into large platforms like Watsco, Carrier Enterprise, and numerous PE-backed roll-ups. Consolidators acquired regional distributors serving contractors, achieving purchasing leverage with manufacturers, cross-selling capabilities, and operational efficiencies. The strategy proved successful as residential and commercial construction boomed, with aging U.S. building stock requiring HVAC replacements. Larger platforms could invest in technology, logistics, and training that small distributors couldn't afford.

Then

Independent HVAC distributors sold at premium multiples, founders exited.

Now

Consolidated platforms achieved better margins and market coverage; small independents struggle to compete.

Why this matters now

Koch Filter serves HVAC end-markets, and Truelink's ADTi platform is itself a consolidation play. The filtration wave mirrors HVAC distribution consolidation logic and timing.

2017-2022

Industrial Automation Consolidation Wave (2017-2022)

Companies like Rockwell Automation, Emerson, and Schneider Electric acquired dozens of industrial automation and software companies to build integrated platforms. Deals focused on combining hardware, software, and services to capture Industry 4.0 opportunities. Strategic buyers paid premium multiples for companies with recurring software revenue, installed equipment bases, and specialized expertise. Private equity also created roll-up platforms in industrial automation subsectors like machine vision and robotics.

Then

Valuations for automation companies surged; smaller niche players became acquisition targets.

Now

Large platforms dominate with comprehensive offerings; pure-play specialists rare outside specialized niches.

Why this matters now

Shows how industrial B2B sectors consolidate when technology shifts and customers demand integrated solutions. Filtration follows as data centers, pharma, and manufacturing require sophisticated air quality systems with monitoring and compliance capabilities.

Sources

(17)