Roth Industries
Roth Industries is a German family-owned industrial group supplying building technology, environmental systems, plastics, hydraulics, composite machinery, and storage solutions.
Last updated August 31, 2026
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Overview
Roth Industries GmbH & Co. KG is a family-owned German industrial group headquartered in Dautphetal, Hesse. Established in 1947 by Heinrich Roth as a small craft business, it initially made wash-boiler stoves and garden paving slabs. Under the leadership of Heinrich Roth’s son Manfred Roth, the business expanded from a regional manufacturing operation into an internationally active group with production and sales activities across Europe, North and South America, and China. The company’s business developed around building technology and industrial technology. In the 1960s, Roth entered heating and sanitary technology, including the production of heating-oil tanks. The corrosion risks associated with steel tanks led the company into plastics technology in 1970, particularly large blow-moulded storage systems for fuels and biofuels. It also broadened its sanitary offering through products such as complete shower cabins. During the 1970s and 1980s, Roth added machinery manufacturing, underfloor heating, and other energy-system technologies. The group integrated Schlesinger, a manufacturer of machinery for brush and broom production, in 1977, founded Roth Werke GmbH in 1978, and acquired Bolenz & Schäfer and EHA in 1989. Today, Roth Industries organizes its activities into building and industrial technology. Its building-technology portfolio includes heat pumps, radiant floor and ceiling heating and cooling, piping systems, sanitary products, heating-oil and water storage, solar systems, and environmental technology. Its industrial businesses include composite-manufacturing machinery, coating and impregnation equipment, brush and broom machinery, hydraulic accumulator systems, injection-moulded components, and plastic piping. Environmental products include systems for drinking-water storage, rainwater management, wastewater treatment, biological treatment, seawater desalination, and hazardous-material containment. The group includes companies such as Roth Werke, Roth Composite Machinery, Roth Hydraulics, Roth Plastic Technology, Becker Plastics, Roth Umwelttechnik, and Roth Services. In 2016, the group consolidated and aligned several subsidiaries under the Roth brand: Roth Kunststofftechnik became Roth Plastic Technology, Schlesinger and EHA were combined as Roth Composite Machinery, and Bolenz & Schäfer became Roth Hydraulics. In 2024, Roth Hydraulics expanded its accumulator business through the acquisition of Houston-based SFP Hydraulics. Roth Industries remains privately owned by the Roth family. Reference material states that the group had 28 production and sales companies in 2023, with one in four products manufactured outside Germany. The 2023 fiscal year generated revenue of €337.5 million and employment of 1,265 people. The company also maintains a regional social-engagement profile through apprenticeships, training initiatives, childcare support, pandemic donations, and the Manfred-Roth-Stiftung, established in 2024. The group’s stated role is that of a diversified engineering and manufacturing partner serving construction, energy, water, environmental, plastics, hydraulics, and specialized machinery markets.
History
Roth Industries began in 1947 when Heinrich Roth established a craft business producing wash-boiler stoves and garden paving slabs. The company’s subsequent growth was shaped primarily by his son Manfred Roth, who joined the leadership from 1962 and broadened the business into heating and sanitary technology. The company produced heating-oil tanks and related products as demand for domestic and building-services equipment expanded. A major technological turning point came in 1970. Steel tanks used for heating oil were vulnerable to corrosion, encouraging Roth Industries to develop large blow-moulded plastic storage systems. This move established plastics as a core capability and later supported products for fuels, biofuels, water, wastewater, and environmental applications. The sanitary business also expanded, including the development of complete shower cabins. Roth pursued vertical and adjacent expansion during the 1970s and 1980s. In 1977, it integrated Schlesinger, a producer of machinery for brush and broom manufacturing. Roth Werke GmbH was founded in 1978. During the 1980s, the company added energy systems such as underfloor heating. In 1989, it acquired Bolenz & Schäfer, active in hydraulics and filament-winding technology, and EHA, which specialized in machinery for coating and impregnation processes involving web-based materials. During the 1990s, Roth invested in hydraulic-pump development and established another site in Bischofswerda in 1992. The collapse of the heating-oil-tank market at the end of the decade led to restructuring. Sites in eastern Saxony that had been operating since the early 1990s were redirected toward environmental technology, including rainwater and wastewater systems for industrial and agricultural customers. This transition helped reduce reliance on the declining oil-storage market. The group accelerated its international development during the 2000s. Its overseas operations adapted products to regional requirements: Spanish facilities produced storage systems for drinking and heating water, rainwater and wastewater treatment, and seawater desalination; United States operations focused mainly on heating-oil tanks; and European production included radiant heating systems for floors and ceilings. By 2023, the group operated 28 production and sales companies and reported that approximately one quarter of its products were manufactured abroad. In 2016, Roth Industries reorganized and consolidated its activities into building and industrial technology. The restructuring also created a more unified brand architecture. Roth Kunststofftechnik was renamed Roth Plastic Technology, Schlesinger and EHA were combined as Roth Composite Machinery, and Bolenz & Schäfer was renamed Roth Hydraulics. The resulting structure grouped building systems, environmental products, plastics, hydraulics, and specialized machinery under a clearer Roth identity. The company marked its 75th anniversary in 2022 and announced additional apprenticeship positions for 2023. In October 2023, Roth Plastic Technology added a division focused on plastics- and injection-moulding-compatible design and development. At the end of that year, the group announced a management transition from Matthias Donges to Christin Roth-Jäger. Roth Hydraulics expanded internationally in 2024 through its acquisition of SFP Hydraulics in Houston. Manfred Roth died in January 2025 at the age of 85. Roth Industries remains wholly owned by the Roth family. Its group companies serve construction, energy, water, environmental, plastics, hydraulics, and industrial-machinery markets. Alongside commercial activity, the group supports vocational training, childcare, regional institutions, and social projects. A foundation named the Manfred-Roth-Stiftung was established in 2024 to support social concerns in the region.
- 2024
SFP Hydraulics acquired
[1]Roth Hydraulics acquired Houston-based SFP Hydraulics to expand its accumulator-systems business.
- 2022
75th anniversary
[1]Roth Industries celebrated 75 years and announced more apprenticeship positions for the following year.
- 2016
Business and brand restructuring
[1]The group consolidated its activities into building and industrial technology and aligned several subsidiaries under Roth-branded names.
- 1992
Bischofswerda site established
[1]The group established another site in Bischofswerda, later associated with environmental technology.
- 1989
Hydraulics and special-machinery expansion
[1]Roth acquired Bolenz & Schäfer and EHA, adding hydraulics, filament winding, coating, and impregnation machinery capabilities.
- 1978
Roth Werke established
[1]Roth Werke GmbH was founded as a significant building-technology company within the group.
- 1977
Schlesinger integrated
[1]The group integrated Schlesinger, a manufacturer of machinery for brush and broom production.
- 1970
Entry into plastics technology
[1]Roth entered large blow-moulding technology to produce plastic storage systems for fuels and biofuels.
- 1962
Expansion under Manfred Roth
[1]Under Manfred Roth, the company began developing into an internationally active group and expanded into heating and sanitary technology.
- 1947
Company founded
[1]Heinrich Roth founded the business as a craft operation producing wash-boiler stoves and garden paving slabs.
Products and positioning
A diversified, engineering-led, family-owned industrial group combining building technology, energy and water systems, plastics processing, hydraulics, and specialized machinery. Roth Industries emphasizes integrated manufacturing expertise, application-specific engineering, international production, and long-term family ownership.
Energy and sanitary systems
Roth building technology systems
Roth Werke develops and distributes systems for energy generation, storage, and distribution, including heat pumps, radiant floor and ceiling heating and cooling, piping systems, sanitary products, shower cabins, and storage systems. The portfolio also includes plastic tanks for heating oil and other applications, as well as solar-related products.
Water and wastewater technology · 1991
Roth environmental systems
Roth Umwelttechnik produces plastic containers and storage systems for drinking water, rainwater, wastewater, and biological treatment. Its products include tanks with capacities of up to 10,000 litres and containers for hazardous materials. The group also supplies systems adapted for industrial, agricultural, and water-treatment applications.
Hydraulics
Roth hydraulic accumulators
Roth Hydraulics develops and manufactures piston, bladder, and diaphragm accumulator systems, along with special-purpose machinery. These systems are used in industrial equipment, amusement rides, theatre and musical productions, offshore wind farms, and other applications requiring hydraulic energy storage or pressure management.
Industrial machinery · 2016
Roth Composite Machinery
Roth Composite Machinery supplies special-purpose machinery for filament winding, prepreg, pleating, coating, brush production, and broom production. Its technologies include automation concepts for fibre changes and winding processes, as well as equipment for web-material impregnation using processes such as hot-melt adhesive application.
Plastic piping and components
Roth Plastic Technology and Becker Plastics systems
These businesses manufacture and distribute plastic systems, particularly pipes for building technology. Becker Plastics develops aluminium-coated polypropylene and polyethylene pipes for water supply and heating installations, and also works in injection moulding and production testing for tool and mould manufacturers.
Marketing campaigns
- 2020Regional COVID-19 support
Germany
During the COVID-19 pandemic, Roth Industries donated face masks to nursing homes, care facilities, and outpatient care services in its region.
Outcome. The donations provided protective equipment to local care organizations.
- Training Day
Germany
Roth Industries regularly organizes a Training Day as part of its vocational education and recruitment activities.
Outcome. The initiative supports apprenticeship recruitment and the group’s broader skills-development program.
Brand decisions
2024
Acquisition of SFP HydraulicsM&ABackground
Roth Hydraulics sought to expand its hydraulic accumulator business in North America.
Action taken
Roth Hydraulics acquired Houston-based SFP Hydraulics, which manufactures bladder, piston, and diaphragm accumulators.
Aftermath
The acquisition broadened Roth Hydraulics’ international presence and accumulator product capabilities.
2016
Consolidation under the Roth brandStrategyBackground
The group had developed a broad collection of businesses in building and industrial technology under different subsidiary names.
Action taken
Roth consolidated its business segments and renamed or merged several subsidiaries, including Roth Plastic Technology, Roth Composite Machinery, and Roth Hydraulics.
Aftermath
The restructuring created a more unified brand architecture across the group’s building and industrial activities.
1970
Move into large-scale plastics technologyStrategyBackground
Steel heating-oil tanks were susceptible to corrosion, creating a need for alternative storage technologies.
Action taken
Roth Industries entered large blow-moulding technology and developed plastic storage systems for fuels and biofuels.
Aftermath
Plastics became a long-term capability supporting storage, piping, environmental, and building-technology products.
Recent events
- 2025
Manfred Roth dies at age 85[1]
Leadership change · Other
Manfred Roth, the founder’s son who led the company’s transformation into an international group, died in January 2025.
- 2024
Roth Hydraulics acquires SFP Hydraulics[1]
M&A
Roth Hydraulics acquired Houston-based SFP Hydraulics, a manufacturer of bladder, piston, and diaphragm accumulators.
- 2023
Roth Plastic Technology launches design and development division[1]
Product launch
Roth Plastic Technology introduced a division focused on designs suitable for plastics and injection moulding, together with related development services.
- 2023
Christin Roth-Jäger takes over management of the group[1]
Leadership change
At the end of 2023, the group announced that Christin Roth-Jäger would succeed Matthias Donges in managing the corporate group.
- 2022
Roth Industries marks its 75th anniversary[1]
Other · Leadership change
The family-owned group commemorated 75 years of operation and announced an increase of approximately 10% in apprenticeship positions for 2023.
Sources2 sources
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