Componenta
Componenta is a Finnish contract manufacturer of cast, machined and fabricated metal components for vehicle, machinery and equipment manufacturers.
Last updated August 26, 2026
Overview
Componenta is a Finnish industrial manufacturing company whose principal business is the contract production of cast and machined metal components. Its customers are generally original equipment manufacturers and other industrial companies serving vehicle, machinery and equipment markets. Rather than selling a broad range of consumer products under a retail brand, Componenta operates mainly as a business-to-business supplier whose capabilities include foundry production, machining and material-processing services. The company’s industrial heritage reaches back to the Högfors ironworks in Karkkila, founded in 1820, and to the Pori foundry, established in 1858. The corporate lineage more directly associated with the modern company began in Helsinki in 1918, when Matti Lehtonen acquired Helsingin Valimo and established the business later known as Rauta- ja Metallivalimo Suomi. During its early decades, the foundry supplied cast-iron parts for agricultural machinery and other industrial applications. It expanded its customer base during the interwar and postwar periods, producing components for harvesters, rubber-processing machinery and pulp-industry equipment. During the Second World War it also made military goods, while the postwar reparations period created demand for tempered cast-iron wheels. The business was reorganized and expanded during the late twentieth century. It moved to Iisalmi in 1975 and adopted the name Suomivalimo Oy. Through acquisitions in the 1980s and 1990s, it added historic foundries including Högfors in Karkkila and Rosenlew in Pori, as well as machining and transmission-related activities. The group used several names, including JOT-Yhtiöt, JOT Components and Santasalo-JOT. After the sale of Santasalo-Vaihteet to Metso in 1999, the group concentrated more heavily on foundry operations and changed its name to Componenta. Componenta became a listed company on Nasdaq Helsinki in 2000. During the 2000s it pursued international expansion, acquiring or taking significant interests in foundry businesses in the Netherlands and Turkey. The Turkish operation, Döktas Dökümcülük Ticaret ve Sanayi, was a substantial manufacturer of cast-iron and aluminium components. At its peak in the mid-2000s, the expanded group was described as one of Europe’s largest independent cast-iron component manufacturers and employed several thousand people across multiple countries. The company underwent a major restructuring after financial difficulties in 2016. Its Dutch operations entered bankruptcy proceedings, while Finnish and Swedish operations entered restructuring. Componenta subsequently sold its Turkish operations in 2017 and operated on a smaller geographic and organizational base. Its remaining industrial footprint included foundries in Pori and Karkkila and the Främmestad machining operation in Sweden. The Swedish subsidiary later filed for bankruptcy in 2019. In August 2019, Componenta acquired Komas Oy, a Finnish manufacturer with roots extending to the 1926 establishment of Valtion Kivääritehdas in Jyväskylä. The transaction broadened Componenta’s machining and material-processing capabilities and strengthened its position in the Finnish metal-component market. In 2020, the company had approximately 590 employees. Its Finnish production network included foundries in Pori and Karkkila, machining units in Jyväskylä, Härmä, Kurikka and Sastamala, and material-services operations covering activities such as plate cutting, hydraulic-tube manufacturing and forging. Componenta’s market position is based on manufacturing expertise, long industrial relationships and the ability to combine casting with downstream machining and other component services.
History
Componenta’s industrial history combines several Finnish foundry traditions with the corporate development of the Lehtonen family business. The Högfors ironworks was founded in Karkkila in 1820, and a foundry has continued operating at the site even though iron production ended in 1916. The Pori foundry represents another nineteenth-century predecessor, having been established in 1858. These facilities later became important parts of Componenta’s Finnish production base. The direct corporate lineage began in 1918, when Matti Lehtonen acquired Helsingin Valimo in Helsinki and began developing Rauta- ja Metallivalimo Suomi. Early customers included agricultural-machinery manufacturers, and the company survived the economic downturn of the 1930s through long-term industrial relationships, including work for Lokomo. By 1937 it employed more than 100 people and received a silver medal for product quality at the Paris International Exposition. After Matti Lehtonen’s death in 1939, leadership passed to his son Bernhard Matias Lehtonen. During the war years the foundry produced military items, including hand grenades and landmines. After the war, Finnish reparations obligations to the Soviet Union led the business to emphasize tempered cast-iron wheels. Employment exceeded 200 people after the Winter War and Continuation War. In the 1950s and 1960s, the company expanded both as a contract foundry and as a producer of its own products. Yrjö M. Lehtonen became chief executive in 1973. The business moved from Helsinki to Iisalmi in 1975 and adopted the name Suomivalimo Oy. The Helsinki foundry closed in 1977. Between 1984 and 1988, the company acquired or incorporated several industrial assets, including Högfors in Karkkila, Rosenlew’s foundry in Pori and Santasalo-Vaihteet. Santasalo-Vaihteet remained an independent business under Heikki Lehtonen and was listed in 1988. A Swedish machining operation, Främmestad, was acquired in 1990. The recession of the early 1990s placed pressure on the family-owned group. During that decade, its activities operated under names including JOT-Yhtiöt, JOT Components, Santasalo-Vaihteet and Santasalo-JOT. The sale of Santasalo-Vaihteet to Metso in 1999 marked a strategic shift toward foundry operations. In the same year, Santasalo-JOT Group adopted the Componenta name, and Componenta was listed on Nasdaq Helsinki in 2000. Componenta expanded internationally in the 2000s. It acquired a majority interest in De Globe in the Netherlands and in Döktas Dökümcülük Ticaret ve Sanayi in Turkey, which produced cast-iron and aluminium components and employed approximately 2,500 people. By 2006, the enlarged group employed about 5,250 people, with roughly 22 percent based in Finland, and was described as the second-largest independent cast-iron component manufacturer in Europe. The expansion was followed by a serious financial restructuring. In autumn 2016, the Dutch operations entered bankruptcy proceedings and the Finnish and Swedish businesses sought restructuring. Componenta sold its Turkish operations in 2017. The reduced group retained Finnish foundries in Pori and Karkkila and the Främmestad machining facility in Sweden, with around 660 employees at that stage. Främmestad later filed for bankruptcy in September 2019. Componenta returned to expansion in Finland when it acquired Komas Oy in August 2019. Komas traced its own history to the 1926 founding of Valtion Kivääritehdas in Jyväskylä and brought machining and material-services expertise to Componenta. By 2020, Componenta employed about 590 people. Its Finnish network included foundries, machining units and material-service facilities, allowing it to supply cast, machined and otherwise processed metal components to industrial customers from a primarily Finnish operating base.
- 2019Komas acquired
Componenta acquired Komas Oy, adding Finnish machining and material-processing capabilities.
- 2019Främmestad bankruptcy filing
Componenta’s Swedish subsidiary filed for bankruptcy.
- 2017Turkish operations sold
Componenta disposed of its Turkish operations as part of its restructuring.
- 2016Restructuring begins
The Dutch operations entered bankruptcy proceedings and Finnish and Swedish operations entered restructuring.
- 2006International expansion reaches peak scale
After expansion into the Netherlands and Turkey, the group employed approximately 5,250 people and ranked among Europe’s largest independent cast-iron component manufacturers.
- 2000Listing on Nasdaq Helsinki
Componenta became a publicly listed company on Nasdaq Helsinki.
- 1999Componenta name adopted
Following the sale of Santasalo-Vaihteet to Metso, Santasalo-JOT Group changed its name to Componenta and focused more closely on foundry operations.
- 1975Move to Iisalmi and renaming as Suomivalimo
The business moved to Iisalmi and changed its name to Suomivalimo Oy.
- 1937Paris exposition quality recognition
The company received a silver medal for product quality at the Paris International Exposition.
- 1918Matti Lehtonen begins the predecessor business
Matti Lehtonen acquired Helsingin Valimo and established the business lineage associated with Rauta- ja Metallivalimo Suomi.
- 1858Pori foundry established
A foundry was founded in Pori, later becoming part of Componenta’s Finnish foundry operations.
- 1820Högfors ironworks founded
The Högfors ironworks was established in Karkkila, creating one of the historic industrial foundations of the later Componenta network.
Products and positioning
A Finnish business-to-business contract manufacturer serving global vehicle, machinery and equipment makers through foundry, machining and related metal-processing capabilities.
Cast metal componentsFoundry products
Componenta produces cast components, particularly cast-iron parts, for manufacturers of vehicles, machinery and industrial equipment. Its foundry network has included the historic Karkkila and Pori facilities. The company’s role is primarily contractual: components are manufactured to industrial customers’ specifications rather than marketed as standardized consumer products.
Machined componentsMachining services
Machining operations provide downstream processing for cast and other metal parts. Componenta’s Finnish machining network includes units associated with Jyväskylä, Härmä, Kurikka and Sastamala. These services enable the company to supply more finished components and support customers seeking integrated manufacturing rather than separate foundry and machining suppliers.
Material servicesMetal processing
Componenta’s material-services activities include plate cutting, hydraulic-tube manufacturing and forging. These capabilities complement its foundry and machining work and broaden the range of metal-processing services available to industrial customers.
Flagship businesses
- Foundry manufacturing
- CNC and other machining services
- Plate cutting and material services
- Hydraulic-tube manufacturing
- Forge production
- Integrated cast-and-machined component supply
Brand decisions
- 2019Acquisition of KomasM&A
Componenta sought to strengthen its Finnish manufacturing base and expand beyond traditional foundry operations.
What changed. The company acquired Komas Oy, a Finnish metal-component manufacturer with machining and material-processing operations.
Aftermath. The acquisition made Componenta a leading metal-component manufacturer in Finland and broadened its domestic production capabilities.
- 2016Restructuring and withdrawal from parts of the international networkStrategy
Financial difficulties affected the group’s multinational operating structure.
What changed. Componenta placed its Finnish and Swedish operations into restructuring and announced bankruptcy proceedings for its Dutch operations.
Aftermath. The Turkish operations were sold in 2017, and the group continued with a smaller operating footprint.
- 1999Concentration on foundry operationsStrategy
After Santasalo-Vaihteet was sold to Metso, the group was positioned to focus more strongly on foundry manufacturing.
What changed. The Santasalo-JOT Group changed its name to Componenta and pursued a foundry-centered industrial strategy.
Aftermath. Componenta was listed in 2000 and subsequently expanded its foundry footprint internationally.
Leadership
| Name | Title | Tenure |
|---|---|---|
| Sami Sivuranta | President and Chief Executive Officerformer | 2020– |
| Anne Leskelä | Board memberformer | — |
| Harri Suutari | Chair of the Boardformer | — |
| Petteri Walldén | Board memberformer | — |
| Tomas Hedenborg | Board memberformer | — |
Recent events
- 2019Componenta acquired Komas
Componenta acquired Finnish metal-component manufacturer Komas, expanding its machining and material-processing activities and strengthening its domestic industrial footprint.
M&A - 2019Componenta Främmestad filed for bankruptcy
The company’s Swedish subsidiary, Componenta Främmestad AB, filed for bankruptcy during the group’s continuing restructuring.
Bankruptcy - 2017Componenta sold its Turkish operations
The group disposed of its Turkish operations as part of the restructuring and geographic reduction following the 2016 crisis.
M&A - 2016Componenta’s Dutch operations entered bankruptcy proceedings
Componenta announced that its Dutch operations would file for bankruptcy, while Finnish and Swedish operations entered restructuring proceedings amid severe financial pressure.
Bankruptcy
Sources
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