What MANN+HUMMEL makes

MANN+HUMMEL is a filtration specialist, not a diversified Tier-1 supplier that happens to make filters. The company's product range runs from the engine compartment to the cabin, covering every fluid that moves through a vehicle: air intake filtration (panel filters, round filters, radial-seal elements), oil filtration (spin-on filters, filter modules, oil separators), fuel filtration (diesel and gasoline filters, water separators, fuel modules), and cabin air filtration (particulate and activated-carbon combination filters). Hydraulic filtration for commercial vehicles and off-highway equipment rounds out the transportation side.

The company's Transportation segment, which generated approximately EUR 3.8 billion in revenue in FY2025, covers original equipment supply for passenger cars, light trucks, and commercial vehicles alongside a large aftermarket business under brands including MANN-FILTER, WIX Filters, and Purolator. The aftermarket business has significant scale, operating through distribution networks in North America and Europe and reaching independent repair shops and dealer networks. A separate Life Sciences and Environment segment covers industrial air filtration, cleanroom filtration, and water and membrane solutions, including municipal drinking water and wastewater treatment -- technology that shares process roots with the transportation filtration business. A third segment, Filtration Materials, started operations in 2026 and supplies specialty filter media internally and externally.

Product development concentrates on two areas: filtration for electrified drivetrains (battery cooling circuits, thermal management loop filtration, cabin air quality for sealed EV cabins) and water and air purification in the Life Sciences segment. The company spent EUR 130 million on research and development in FY2025 and operates more than 80 production and development locations on six continents. Its 2026 Global Technology and Innovation Center in Tumkur, Karnataka is described in company materials as its largest development center outside Germany.

Financial performance

MANN+HUMMEL reported group revenue of EUR 4,214.9 million for fiscal year 2025, down from EUR 4,527.5 million in 2024, a decline of approximately 6.9% reported (3.5% organic after adjusting for EUR 154.9 million of negative currency effects). The Berylls by AlixPartners Top-100 2026 study, which tracks automotive-sector revenue separately, assigns the company EUR 3,633 million for the same year, reflecting the Transportation segment's contribution rather than the consolidated group. The Transportation segment reported EUR 3,762.1 million in FY2025.

Group EBIT was EUR 193.6 million, a margin of 4.6%, down from EUR 230.0 million and 5.1% the prior year. EBIT includes EUR 51.1 million in restructuring charges, primarily related to the optimization of the European production footprint, including a German plant and operations in Spain. Excluding restructuring and other one-time items totaling EUR 50.0 million, the adjusted EBIT margin was 5.8%, consistent with the prior year and above the mid-single-digit guidance the company had issued. EBITDA was EUR 391 million (9.3% margin). Free cash flow improved materially to EUR 289 million from EUR 133 million in 2024. Total assets at year-end were EUR 3,865 million.

Average headcount in FY2025 was 20,371, down from 21,224 the prior year, reflecting both restructuring activity and general volume pressure in the European automotive market. The company employs roughly 20,000 people globally across more than 80 locations.

Ownership and history

Adolf Mann and Eugen Hummel founded the company in Ludwigsburg, Germany in 1941 as a manufacturer of filtration products. The Hummel family retains majority ownership; the company is privately held and not listed on any stock exchange. Thomas Fischer serves as Chairman of the Supervisory Board, per company press materials from 2026. The headquarters remain in Ludwigsburg, Baden-Wurttemberg, at Schwieberdinger Strasse 126.

Over eight decades, the company expanded from a German original equipment supplier into a global group, building or acquiring brands including MANN-FILTER (OE and aftermarket), Purolator (North American aftermarket), WIX Filters, and Mecafilter. Acquisitions across 2016, 2018, and 2019 brought additional capability in water and air filtration. A 2026 acquisition of Hardy Filtration, a provider of integrated air and water filtration solutions founded in 1993, extended the Life Sciences and Environment segment.

The current three-segment structure reflects a deliberate move to capture filtration demand beyond the internal combustion engine: Transportation covers the traditional automotive and commercial vehicle customer base; Life Sciences and Environment addresses air and water quality markets; Filtration Materials, newly operational in 2026, supplies specialty filter media. All three trace back to the same core competency in fluid and particulate separation.

Certifications and quality

MANN+HUMMEL holds IATF 16949:2016 certification across multiple manufacturing plants globally, per certificates posted on the company's own site. Confirmed current certificates include the Allen Plant (Gastonia, North Carolina), valid to February 19, 2027, issued by DQS Inc.; and Mann Hummel Purolator Filters LLC (Fayetteville, North Carolina), valid May 2025 through May 2028, issued by TUV Rheinland. The Changchun, China plant and the Ludwigsburg headquarters (as a remote location) also appear in the IATF certification register. The company's quality management system is cited as covering design and manufacture of filtration products across its scope. The company also claims ISO 14001 environmental management certification, per its certificates page.

Known customers

MANN+HUMMEL does not publish a named customer list in its annual report, consistent with standard practice for a Tier-1 supplier selling to original equipment manufacturers under confidentiality agreements. One documented customer recognition appears in the FY2025 Annual Report: the GM Supplier Quality Excellence Award. The company's US subsidiary, Mann Hummel Purolator Filters, recorded 24,466 US import shipments as of September 2026 according to bill-of-lading data, with parent entities (Mann Hummel) and related plants (Longkou Mann Hummel Filtration, Mann Hummel Brasil) among the top documented suppliers to the US entity -- the logistics footprint of a global supply chain shipping finished filtration products to North American distribution.

The Purolator and WIX brands distribute into independent aftermarket channels in North America, which means MANN+HUMMEL products reach vehicles across virtually every OEM nameplate through the service side, even where OE supply relationships are not publicly named.

Recent news

September 2026 -- MANN+HUMMEL rejected an alternative proposal from IG Metall, the works council, and employees for its Speyer, Germany plant, confirming the closure will proceed by 2028. Approximately 600 positions are at risk. The company cited weak European economic growth, elevated energy and labor costs, and tariff-related supply chain burdens as the underlying reasons for the site consolidation (per press coverage of the company announcement).

May 2026 -- The company opened a Global Technology and Innovation Center in Tumkur, Karnataka, India, described in company materials as the largest MANN+HUMMEL development facility outside Germany, focused on engineering and filtration innovation across the group's segments.

April 2026 -- MANN+HUMMEL announced the planned closure of its Speyer plant by 2028. Production is to be transferred gradually to other facilities. Separately, Helena Hofer was confirmed as permanent CFO effective May 1, 2026, after serving as interim CFO since February following the departure of Jurate Keblyte.

Frequently asked questions

What does MANN+HUMMEL make?

MANN+HUMMEL makes filtration products: engine air filters, oil filters, fuel filters, cabin air filters, hydraulic filters, and industrial filtration systems for water and air. Its Transportation segment supplies automotive and commercial vehicle OEMs and the independent aftermarket under the MANN-FILTER, Purolator, and WIX Filters brands. A Life Sciences and Environment segment covers industrial air filtration and water and membrane solutions.

Who owns MANN+HUMMEL?

MANN+HUMMEL is privately held. The Hummel family retains majority ownership. The company was co-founded by Adolf Mann and Eugen Hummel in Ludwigsburg, Germany in 1941. It is not listed on any stock exchange.

What is MANN+HUMMEL's revenue?

MANN+HUMMEL reported group revenue of EUR 4,214.9 million for fiscal year 2025, down from EUR 4,527.5 million in 2024. Its Transportation segment, which covers automotive and commercial vehicle filtration, contributed approximately EUR 3,762 million. The Berylls by AlixPartners Top-100 2026 study assigns the company EUR 3,633 million in automotive-sector revenue for the same period.

Where is MANN+HUMMEL headquartered?

MANN+HUMMEL is headquartered in Ludwigsburg, Baden-Wurttemberg, Germany, at Schwieberdinger Strasse 126. The company was founded in Ludwigsburg in 1941 and has maintained its headquarters there. It operates more than 80 production and development locations across six continents.

Who are MANN+HUMMEL's customers?

MANN+HUMMEL supplies filtration products to major automotive and commercial vehicle OEMs, with the GM Supplier Quality Excellence Award documented in the company's 2025 Annual Report as a confirmed customer recognition. The company also reaches vehicle owners directly through independent aftermarket channels, where the Purolator and WIX Filters brands distribute to repair shops and dealers across North America and Europe.

Last verified September 2026. Is this your company? Request a correction.