Dorman Long
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| Private | |
| Industry | Manufacturing |
| Founded | 1875 |
| Headquarters | Northamptonshire, UK |
| Products | Bridges, Heavy lifting equipment |
| Website | www.dormanlongtechnology.com |
Dorman Long is an engineering consultancy and equipment manufacturer for the construction of long-span bridges, power stations, refineries, offshore structures, stadia and other large building structures. Originally based in Middlesbrough, North East England, the company was a major steel producer later diversifying into bridge building. Dorman Long was once listed on the .
The company was founded by Arthur Dorman and Albert de Lande Long when they acquired West Marsh Iron Works in 1875. In the 1920s Dorman Long took over the concerns of Bell Brothers and Bolckow and Vaughan and diversified into the construction of bridges. In 1938 Ellis Hunter took over as Managing Director and he continued to lead the business until 1961.
In 1967 Dorman Long was nationalised, along with 13 other British steel-making firms, becoming subsumed into the government-owned British Steel Corporation. In 1982 Redpath Dorman Long, the engineering part of the business, was acquired by Trafalgar House who in 1990 merged it into Cleveland Bridge & Engineering Company in Darlington.
In 2000 there was a management buyout of Cleveland Bridge which led to the formation of Dorman Long Technology (DLT) in August 2000. DLT was formed as an amalgamation of the Cleveland Bridge engineering office with an outside construction consultant (Lowther-Rolton) and a heavy lift contractor (Zalcon), both of whom had been working closely with Cleveland Bridge throughout the 1990s. DLT is now an independent company, registered in the UK, carrying out bridge design and construction engineering together with design and supply of heavy lifting equipment for the construction of bridges, refineries, power stations, wind farms, offshore drilling rigs, large roofs and other large pre-assembled structures.
Iron-making has been known in Cleveland since the Romans found iron slags in North Yorkshire, with small-scale iron-making known to have taken place at Rievaulx and Whitby Abbeys and at Gisborough Priory in the 17th century.
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Wikipedia