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Dellner
Dellner Couplers AB is a Swedish original equipment manufacturer of train connection systems such as couplers, gangway systems and dampers. The headquarter of the company is in Vika in the Falun Municipality. The company operates 17 subsidiaries worldwide and employs approximately 1,200 people.
Since June 2019, Dellner has been owned by EQT, a global investment organization. In March 2025, EQT announced that Dellner Couplers would be acquired by Wabtec. The value of Dellner is estimated at around EUR 890 million in this acquisition. The transaction is still subject to regulatory approvals.
Dellner was founded in 1941 by the Swedish engineer Jan Dellner. The first customer was Swedish State Railways, for whom the Engineering Bureau Dellner produced automatic couplers. In the following years, the company, based in the small town of Vika in central Sweden, expanded its business and supplied automatic couplers to numerous customers in Europe, such as the Paris Metro, SNCF, Rome Metro and Ferrovie dello Stato Italiane.
In 1960, Dellner changed its corporate strategy and focused solely on the Scandinavian and North American markets. In the following years, the company expanded into automatic couplers under the name AB Dellner Malmco in Scandinavia. At the same time, a subsidiary was established in North America. At the beginning of the 1980s, the company had around 90 employees working at its Swedish headquarters in Vika and in subsidiaries in the USA and Canada.
A turning point in Dellner's corporate history came in 1983, when the company realigned its business strategy to supply train manufacturers and railway operators around the world with automatic train couplers. That decision marked the beginning of Dellner's gradual expansion as a global supplier of train coupling systems.
In recent years, the company has responded to the changing requirements of the rail industry. All over the world, increasing numbers of passenger trains have been developed which travel at ever higher speeds. That trend has made the safety of train couplings increasingly important. Dellner responded to that development in the railroad industry by considering the coupling of a train as a safety-relevant component of the entire train system. The former supplier of train couplings became a manufacturer of integrated coupling systems that have been equipped with numerous safety features over the years:
Dellner's coupling business in Sweden has traded under various names over the years. In 1952, the Engineering Bureau Dellner was renamed Runnvika Mechanical Workshop. Later, the coupling business traded under the legal names Jan Dellner & Co, AB Dellner Malmco and finally as Dellner Couplers AB. In 1992, Dellner Invest AB was founded as an umbrella company for Dellner Couplers.
After the collapse of the Soviet Union and the economic opening of Eastern Europe, Dellner expanded into the countries of the former Warsaw Pact. After 1997, Poland became an important location for Dellner, with a branch in Gdynia at which an increasing amount of production capacity was created in subsequent years.
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Dellner
Dellner Couplers AB is a Swedish original equipment manufacturer of train connection systems such as couplers, gangway systems and dampers. The headquarter of the company is in Vika in the Falun Municipality. The company operates 17 subsidiaries worldwide and employs approximately 1,200 people.
Since June 2019, Dellner has been owned by EQT, a global investment organization. In March 2025, EQT announced that Dellner Couplers would be acquired by Wabtec. The value of Dellner is estimated at around EUR 890 million in this acquisition. The transaction is still subject to regulatory approvals.
Dellner was founded in 1941 by the Swedish engineer Jan Dellner. The first customer was Swedish State Railways, for whom the Engineering Bureau Dellner produced automatic couplers. In the following years, the company, based in the small town of Vika in central Sweden, expanded its business and supplied automatic couplers to numerous customers in Europe, such as the Paris Metro, SNCF, Rome Metro and Ferrovie dello Stato Italiane.
In 1960, Dellner changed its corporate strategy and focused solely on the Scandinavian and North American markets. In the following years, the company expanded into automatic couplers under the name AB Dellner Malmco in Scandinavia. At the same time, a subsidiary was established in North America. At the beginning of the 1980s, the company had around 90 employees working at its Swedish headquarters in Vika and in subsidiaries in the USA and Canada.
A turning point in Dellner's corporate history came in 1983, when the company realigned its business strategy to supply train manufacturers and railway operators around the world with automatic train couplers. That decision marked the beginning of Dellner's gradual expansion as a global supplier of train coupling systems.
In recent years, the company has responded to the changing requirements of the rail industry. All over the world, increasing numbers of passenger trains have been developed which travel at ever higher speeds. That trend has made the safety of train couplings increasingly important. Dellner responded to that development in the railroad industry by considering the coupling of a train as a safety-relevant component of the entire train system. The former supplier of train couplings became a manufacturer of integrated coupling systems that have been equipped with numerous safety features over the years:
Dellner's coupling business in Sweden has traded under various names over the years. In 1952, the Engineering Bureau Dellner was renamed Runnvika Mechanical Workshop. Later, the coupling business traded under the legal names Jan Dellner & Co, AB Dellner Malmco and finally as Dellner Couplers AB. In 1992, Dellner Invest AB was founded as an umbrella company for Dellner Couplers.
After the collapse of the Soviet Union and the economic opening of Eastern Europe, Dellner expanded into the countries of the former Warsaw Pact. After 1997, Poland became an important location for Dellner, with a branch in Gdynia at which an increasing amount of production capacity was created in subsequent years.