Interpump Group
Corporate brand
UnclaimedInterpump Group is an Italian industrial machinery group specializing in high-pressure pumps, water-jetting systems, hydraulics, fluid-processing equipment and power-transmission components.
Last updated October 16, 2026
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Overview
Interpump Group is an Italian industrial machinery company headquartered in Sant'Ilario d'Enza, near Reggio Emilia. Founded in 1977 by Fulvio Montipò, the group began with high-pressure piston pumps and built its early technological reputation around the use of ceramic pistons in place of conventional steel pistons. The innovation was intended to improve pump efficiency, operating performance and reliability, and helped Interpump become a major international supplier of professional high-pressure pumping equipment. The company’s historical core is its Water-Jetting business. This activity includes high-pressure and ultra-high-pressure plunger pumps, water-jetting systems, accessories and related equipment used in industrial cleaning, surface preparation, water treatment, steelmaking, chemicals, petrochemicals, construction and other demanding applications. Through businesses such as Pratissoli Pompe, Hammelmann, General Pump and NLB Corporation, Interpump covers equipment ranging from professional high-pressure pumps to very-high-pressure systems and mobile or trailer-mounted water-jetting machines. Hammelmann’s technologies extend into ultra-high-pressure fluid pumping, while NLB also manufactures and rents water-jetting equipment. Interpump listed on the Milan Stock Exchange in 1996. During the late 1990s it began a major strategic expansion into hydraulics, eventually becoming a leading manufacturer of power take-offs. The group subsequently broadened its portfolio through acquisitions in hydraulic cylinders, pumps, valves, directional control valves, motors, steering systems, hoses, pipes, fittings and hydraulic manifolds. Its hydraulics activities serve mobile machinery, industrial equipment, commercial vehicles, agriculture, construction, material handling and other applications. A further phase of diversification extended the group into flow processing. Acquisitions such as Bertoli, Inoxpa, Mariotti & Pecini, Servizi Industriali, I.Mec and Waikato added equipment for food, cosmetics, pharmaceutical and agricultural processing. Products in this area include homogenisers, valves, tanks, rotary lobe pumps, mixers, agitators, separation and clarification systems, mechanical screens and automated milking systems. Interpump also entered power transmission through the acquisition of Reggiana Riduttori, later expanding through Transtecno, DZ Trasmissioni, Berma and Draintech. The portfolio includes reduction gears, right-angle gear drives, screw-jack systems and related transmission products. In 2025, the acquisition of a majority stake in Borghi Assali added hydraulic and electric steering axles for industrial vehicles. The group operates through more than 100 companies and brands in a broad international network. Its main activities are organized around Water-Jetting and Hydraulics, with flow processing and power transmission as important related businesses. Key associated brands and operating companies include Interpump, Pratissoli Pompe, General Pump, Hammelmann, NLB Corporation, Inoxihp, Walvoil, Muncie Power Products, IMM Hydraulics, GS-Hydro, Reggiana Riduttori and Inoxpa. The company describes itself as a global leader in professional high-pressure piston pumps and a significant international player in hydraulics. Its shares trade under the ticker IP.
History
Interpump Group was established in 1977 in Sant'Ilario d'Enza by Fulvio Montipò. Its initial business was based on high-pressure piston pumps, particularly a design using ceramic pistons rather than steel pistons. This engineering choice became central to the company’s identity and helped establish its reputation in professional high-pressure pumping. During the 1990s, Interpump expanded its water-jetting capabilities. The acquisition of Pratissoli Pompe added heavy-duty triplex pumps for industrial applications, while General Pump, acquired in the United States in 1998, reinforced the group’s North American distribution and aftermarket presence. Interpump became a listed company on the Milan Stock Exchange in 1996. The late 1990s brought a strategic move into hydraulics. The group developed a major power-take-off business and subsequently added hydraulic cylinders, pumps, valves, directional control systems, hoses, fittings and steering technologies. During this period, ownership and governance also changed: Fulvio Montipò sold the company to BC Partners before later regaining a significant shareholder and managerial position. In 2009, IPG Holding participated in a capital increase that helped reinforce the shareholder structure. Interpump repositioned its portfolio during the 2000s. In 2005 it acquired Hammelmann, a German specialist in very-high-pressure systems, while disposing of its professional cleaning-machines business. In 2007 it acquired NLB Corporation in the United States, adding the manufacture and rental of trailer-mounted water-jetting equipment. From the 2010s onward, growth increasingly came through acquisitions. Galtech and Hydrocontrol strengthened valves and directional control valves, and Walvoil, acquired in 2014, became an important hydraulics platform. IMM Hydraulics, Tubiflex and Tekno Tubi broadened the hose and fittings portfolio. The 2017 acquisition of international operations of GS-Hydro added non-welded piping systems for oil and gas, industrial and naval applications. The group also built a flow-processing division. Bertoli joined in 2015 with high-pressure homogenisers. Inoxpa and Mariotti & Pecini followed in 2017, adding valves, tanks, rotary lobe pumps, mixers and agitators. Later additions included Servizi Industriali, I.Mec and Waikato, extending the portfolio into separation, clarification, mechanical screening and automated milking systems. Interpump entered power transmission in 2019 through Reggiana Riduttori and later added Transtecno, DZ Trasmissioni, Berma and Draintech. In hydraulics, the acquisition of White Drive Motors & Steering in 2021 added orbital motors and steering systems. In 2025, Reggiana Riduttori acquired 70% of Borghi Assali, extending the group’s industrial-vehicle steering portfolio. Today, Interpump is organized primarily around Water-Jetting and Hydraulics, supported by flow processing and power transmission. It operates through more than 100 companies and brands in 36 countries, serving industrial, mobile-equipment, commercial-vehicle, food, pharmaceutical, cosmetic, agricultural, energy and marine applications.
- 2025
Borghi Assali majority acquisition
[1]Reggiana Riduttori acquired 70% of Borghi Assali, a manufacturer of hydraulic and electric steering axles.
- 2021
White Drive Motors & Steering acquisition
[1]The transaction added orbital motors and steering systems to the hydraulics portfolio.
- 2019
Entry into power transmission
[1]Reggiana Riduttori marked Interpump’s entry into reduction gears and related transmission products.
- 2017
Expansion into flow processing and industrial piping
[1]Inoxpa, Mariotti & Pecini and GS-Hydro operations broadened the group’s processing and piping activities.
- 2015
Expansion into homogenisation
[1]Bertoli joined Interpump, providing a platform for high-pressure homogenisers and flow-processing equipment.
- 2014
Walvoil joins the group
[1]The acquisition strengthened Interpump’s valves, directional-control and mobile-hydraulics portfolio.
- 2007
Acquisition of NLB Corporation
[1]NLB expanded the group’s water-jetting manufacturing and equipment-rental capabilities in the United States.
- 2005
Acquisition of Hammelmann
[1]Interpump acquired the German very-high-pressure systems specialist and repositioned toward higher-technology industrial sectors.
- 1998
Acquisition of General Pump
[1]The acquisition strengthened the group’s North American high-pressure pump and aftermarket activities.
- 1996
Stock-market listing
[1]Interpump Group became listed on the Milan Stock Exchange.
Products and positioning
A diversified global industrial technology group positioned around high-pressure fluid handling, hydraulics, flow processing and power transmission. Its strategy combines specialist engineering brands with international acquisition-led expansion.
Water-Jetting · 1977
High-pressure piston and plunger pumps
Interpump’s historic product family includes professional high-pressure piston and plunger pumps used in industrial cleaning, water treatment, surface preparation and process applications. The group’s ceramic-piston technology is a defining engineering feature. Through its operating companies, the range covers conventional high-pressure equipment as well as heavy-duty triplex pumps for demanding industrial service.
Water-Jetting
Ultra-high-pressure pumping systems
Hammelmann supplies very-high-pressure fluid-pumping technology for industrial and specialized applications. Its systems extend the group’s capabilities beyond standard professional pumps into demanding applications requiring extreme pressure, including industrial maintenance, manufacturing and process work.
Hydraulics · 1997
Hydraulic components
Interpump’s hydraulics portfolio includes power take-offs, pumps, motors, cylinders, valves, directional control valves, hoses, pipes, fittings, manifolds, hydraulic tanks, power packs and steering systems. These components are used in mobile machinery, commercial vehicles, industrial equipment, agriculture, construction and material-handling applications.
Flow Processing · 2015
Flow-processing equipment
The flow-processing portfolio includes high-pressure homogenisers, valves, tanks, rotary lobe pumps, mixers, agitators, clarification and separation systems, mechanical screens and automated milking equipment. The products serve food, pharmaceutical, cosmetics, agriculture and other process industries.
Power Transmission · 2019
Reduction gears and transmission systems
Interpump’s power-transmission business includes planetary and other reduction gears, right-angle gear drives, screw-jack systems and related transmission equipment. The division was established through Reggiana Riduttori and expanded through additional specialist companies.
Brand decisions
2019
Diversification into power transmissionStrategyBackground
Interpump had expanded from pumps and hydraulics into adjacent industrial technologies.
Action taken
The group acquired Reggiana Riduttori and began building a reduction-gear and transmission platform.
Aftermath
Subsequent acquisitions added additional gear, drive and transmission capabilities.
2005
Repositioning toward higher-technology industrial equipmentStrategyBackground
Interpump sought to concentrate on higher-technology activities connected with high-pressure systems and industrial machinery.
Action taken
It acquired Hammelmann and sold its professional cleaning-machines business.
Aftermath
The move reinforced the Water-Jetting division’s focus on specialized high-pressure and ultra-high-pressure technologies.
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