Zapp Group
A German family-controlled international group specializing in precision semi-finished products made from stainless steel, titanium, nickel alloys, cobalt alloys and other specialty metals.
Last updated October 14, 2026
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Overview
Zapp Group is an international metalworking group headquartered in Ratingen, Germany. Its principal industrial business is conducted through Zapp Precision Metals GmbH, with production operations associated with Schwerte and Unna. The group focuses on metallic precision semi-finished products rather than finished consumer goods, supplying industrial customers with strip, wire, rod and profile products manufactured through cold forming and related processing technologies. The company’s historical roots extend to the Zapp family’s steelmaking activities in the Leppe valley near Ründeroth. The family’s involvement with steel is traced to 1701, when Hermann Zapp acquired an iron hammer and established a registered trade. A puddling furnace built in 1852 enabled the production of more consistent-quality steel. Although the original steelmaking enterprise was sold after financial difficulties during the economic crisis of the late 1850s, the family retained a long-term connection with the steel and specialty-materials sector. Robert Zapp later developed the commercial and international side of the business. After studying iron metallurgy and the Bessemer process in England, he left Ründeroth and established a steel-trading operation in Düsseldorf in the late nineteenth century. The business concentrated on distributing English specialty steels across Europe and worked closely with toolmakers because newer grades required technical explanation and application support. Over time, the product range broadened. The sales organization introduced Krupp’s Nirosta stainless steel from 1913 and Widia carbide from 1927. A major structural development occurred in 1926, when Robert Zapp acquired the Ergste steelworks. Ergste had expertise in cold forming stainless steel, while the trading company continued to focus on specialty-material distribution. For decades the businesses operated largely separately. After the Second World War, Robert Zapp expanded its network and concentrated on innovative high-performance materials, while Ergste increasingly specialized in high-alloy and other special steels for drawing and cold-rolling applications. During the 1960s, the production business focused more specifically on stainless, acid-resistant and heat-resistant grades. The industrial platform expanded through further consolidation and internationalization. Ergste acquired the Westig steelworks in Unna in 1991, and the two operations were combined in 1995 as Stahlwerk Ergste Westig. The group subsequently established or expanded production and service operations in Germany, the United States, the United Kingdom, Sweden and China. In 1998, the group’s companies were brought together under a family-controlled joint-stock structure. Later additions included businesses such as Ferd. Wagner GmbH and Euro Titan Handels GmbH, as well as Zapp Precision Metals (Taicang) Co. in China. American growth included both new facilities and acquisitions. The group pursued a more unified international identity in the 2010s. Zapp Medical Alloys GmbH and Ferd. Wagner GmbH were merged into Stahlwerk Ergste Westig GmbH in 2013. The latter was then renamed Zapp Precision Metals GmbH to communicate its role as an international niche supplier of precision products. Other organizational changes included renaming Robert Zapp Werkstofftechnik as Zapp Materials Engineering and Robert Zapp Service-GmbH as Zapp Systems. In 2018, Zapp Group acquired Sandvik’s Stainless Wire business, strengthening its position in precision wire and related stainless-material applications. Zapp Group’s portfolio covers a range of austenitic, ferritic and martensitic stainless steels, nickel and nickel-based alloys, cobalt-based alloys, titanium and titanium alloys. Alongside manufacturing, the group operates materials-trading, engineering, tooling-alloy and service activities. Its customers are industrial and technical users that require tightly specified material properties, dimensions and surface characteristics. The group is therefore positioned as a specialist business-to-business supplier whose differentiation depends on metallurgy, processing expertise, application advice and international service coverage.
History
Zapp Group’s corporate history combines a family steelmaking tradition with a later specialty-steel trading and precision-manufacturing business. The family’s documented industrial roots reach back to 1701, when Hermann Zapp acquired an iron hammer and began steel-related commercial activity in the Leppe valley north of Ründeroth. In 1852, the family built a puddling furnace capable of producing steel with more consistent quality. The original operation encountered financial problems during the economic downturn of 1857 and was sold, but the family continued to participate in the steel industry. Robert Zapp became important to the development of the commercial enterprise. Having studied iron metallurgy and the Bessemer process in England, he left Ründeroth and established a steel-trading company in Düsseldorf in the late nineteenth century. The company focused on the European distribution of English specialty steels. Because many of these materials were new to customers, the business developed close technical relationships with toolmakers and other industrial users. Its distribution portfolio later included Krupp’s Nirosta stainless steel, introduced by the sales organization from 1913, and Widia carbide from 1927. In 1926, Robert Zapp acquired the Ergste steelworks, which specialized in the cold forming of stainless steel. The trading and manufacturing businesses remained substantially independent for around seven decades. After the Second World War, the trading company expanded its branch network and emphasized high-performance materials. Ergste, meanwhile, developed a stronger production identity based on high-alloy and specialty steels, drawing and cold rolling. In the 1960s, the production side concentrated on stainless, acid-resistant and heat-resistant steels. Expansion resumed through industrial consolidation. Ergste purchased the Westig steelworks in Unna in 1991, and the two facilities were combined in 1995 as Stahlwerk Ergste Westig. The group later established production, distribution and service operations in the United States, including facilities in Summerville, South Carolina, and Dartmouth, Massachusetts. In 1998, the group’s companies were consolidated under a family-controlled joint-stock structure. Subsequent growth included acquisitions in Germany and the United States, the establishment of a Chinese operation at Taicang, and the development of businesses serving specialty materials, tooling alloys and engineering customers. The group reorganized several businesses to create a clearer international market identity. In 2013, Zapp Medical Alloys GmbH and Ferd. Wagner GmbH were merged into Stahlwerk Ergste Westig GmbH. That company was renamed Zapp Precision Metals GmbH, emphasizing its role as a niche supplier of precision semi-finished products. Robert Zapp Werkstofftechnik became Zapp Materials Engineering, while Robert Zapp Service-GmbH became Zapp Systems. In 2018, Zapp Group acquired Sandvik’s Stainless Wire business. The modern group is organized around cold forming and the processing of stainless steel, titanium, carbon steel and other specialty materials into strip, wire, rod and profile products. Its materials portfolio includes austenitic, ferritic and martensitic stainless steels, nickel and nickel-based alloys, cobalt-based alloys, and titanium alloys. The group’s sites and service centers extend across Germany, the United Kingdom, the United States, Sweden, China and Hong Kong. Its principal identity is that of a technically oriented industrial supplier serving specialized business customers rather than a consumer-facing brand.
- 2018
Sandvik Stainless Wire business acquired
[1]Zapp Group acquired Sandvik’s Stainless Wire business, expanding its precision-wire operations.
- 2013
Business reorganization and renaming
[1]Zapp Medical Alloys GmbH and Ferd. Wagner GmbH were merged into Stahlwerk Ergste Westig GmbH, which was renamed Zapp Precision Metals GmbH. Other technical and service businesses were also renamed.
- 1998
Group companies consolidated
[1]The group’s companies were combined under a family-controlled joint-stock structure.
- 1995
Stahlwerk Ergste Westig formed
[1]The Ergste and Westig operations were merged into Stahlwerk Ergste Westig.
- 1991
Westig steelworks acquired
[1]The Ergste steelworks acquired the Westig steelworks in Unna.
- 1926
Ergste steelworks acquired
[1]Robert Zapp acquired the Ergste steelworks, a specialist in cold-formed stainless steel.
- 1913
Nirosta introduced through the sales organization
[1]The sales organization began distributing Krupp’s Nirosta stainless steel.
- 1871
Düsseldorf steel-trading company established
[1]The Robert Zapp trading company was established in Düsseldorf, with an emphasis on distributing English specialty steels across Europe.
- 1869
Robert Zapp leaves Ründeroth
[1]Robert Zapp left Ründeroth and developed the Düsseldorf-based specialty-steel trading business that became a major part of the group’s later identity.
- 1852
Puddling furnace established
[1]The family built a puddling furnace to produce steel with more consistent quality.
Products and positioning
A specialized business-to-business materials group positioned around metallurgical expertise, cold forming, precision dimensions and the supply of difficult-to-process specialty metals.
Precision semi-finished metal products
Precision strip
Cold-formed strip products made primarily from stainless steel and other specialty metals. The offering serves industrial users that require controlled dimensions, material consistency and specialized alloy performance. Depending on the application, the materials may include austenitic, ferritic or martensitic stainless steels, nickel alloys, cobalt alloys or titanium alloys.
Precision semi-finished metal products
Precision wire
Precision wire is a core Zapp Group product form and is manufactured from stainless steel and other high-performance alloys. The group’s wire activities include products for technically demanding industrial applications, supported by metallurgical advice and international production and service capabilities.
Precision semi-finished metal products
Precision rod
Rod products are supplied as metallic semi-finished material for downstream manufacturing. Zapp’s expertise covers cold forming and the processing of stainless and specialty alloys where dimensional control, corrosion resistance, heat resistance or other defined material characteristics are required.
Precision semi-finished metal products
Profiles
Specialty-metal profiles are produced for industrial customers needing defined cross-sections and controlled material properties. The group’s profile capability complements its strip, wire and rod businesses and is based on cold-forming expertise in stainless and other special materials.
Materials distribution and engineering
Specialty materials and tooling alloys
In addition to manufacturing, Zapp Group companies trade and provide technical support for special materials and tooling alloys. These activities connect material selection, application consulting and service-center distribution with the group’s own precision-processing operations.
Controversies
2018
Stainless-steel price-fixing investigation and fines
The German Federal Cartel Office fined several stainless-steel producers, including Zapp Group, in a proceeding involving coordination of scrap and alloy surcharge calculations and the exchange of prices for some engineering-steel products. The alleged conduct extended from 2004 until searches in November 2015. The companies acknowledged the allegations. The combined fines across the affected companies totaled approximately €205 million.
Brand decisions
2018
Acquire Sandvik Stainless Wire businessM&ABackground
Zapp Group continued its international expansion in specialty metals and sought to strengthen its precision-wire activities.
Action taken
The group acquired the Stainless Wire business of Sandvik.
Aftermath
The transaction expanded Zapp Group’s wire portfolio and international specialty-materials platform.
2013
Create a more unified international precision-metals identityStrategyBackground
The group sought to present its manufacturing and technical activities under a clearer international market identity.
Action taken
Zapp Medical Alloys GmbH and Ferd. Wagner GmbH were merged into Stahlwerk Ergste Westig GmbH, which was renamed Zapp Precision Metals GmbH. Robert Zapp Werkstofftechnik and Robert Zapp Service-GmbH were also renamed Zapp Materials Engineering and Zapp Systems.
Aftermath
The changes emphasized precision semi-finished products and aligned the names of the group’s manufacturing, engineering and service activities.
Recent events
- 2018
Zapp Group acquires Sandvik Stainless Wire business[1]
M&A
Zapp Group acquired Sandvik’s Stainless Wire business, expanding its precision-wire activities and strengthening its international specialty-materials portfolio.
Sources1 sources
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