World leaders in design, manufacture and supply of threaded bar and cable systems, Macalloy's vast experience has enabled the company to continue to innovate and improve quality to meet the evergrowing construction industry. As part of the move towards providing quality in every aspect of the company, 

The company was originally established in 1922 as a steel trading business and first started threading bars in 1948, when it developed the world's first post-tensioning bar system. In 1982 Macalloy was asked to develop tension components for the Norman Foster designed Renault Building in the UK; this was again a world first that led to the development of Macalloy's architectural product range.

Macalloy is now privately owned and has been based at the purpose built facilities in Dinnington, Sheffield since 2006. The purpose-built factory has enabled the company to carry on supplying products for tension structures, facade engineering, ground engineering and post-tensioning/concrete engineering projects worldwide, enabling Macalloy to enter new markets throughout the world.

Over the years, Macalloy has developed strong business partnerships providing Consulting Engineers & Architects with comprehensive range of products and services. 

Macalloy's supply chain continues to expand via an international network of Macalloy personnel agents and distributors, ensuring continuing growth in the international market.

Macalloy products are used throughout the construction industry and have been featured in many prestigious global projects including five of the upcoming Russian World Cup Stadiums, 7 star Burj Al-Arab Hotel in Dubai, Marina Bay Sands in Singapore and Jubilee Bridge in London. 



Business Awards


Quality Approval

Our Factory

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Business Award Winners!!

Macalloy are now the proud owners of the Sheffield Business Awards Excellence in International Trade Award. Pictured is some of the team from Macalloy with a representative from the award sponsor Pressure Technologies.


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VTB Arena, Moscow Russia

Work is well under way at the VTB Arena - also known as Dynamo Central Stadium. Macalloy have provided galvanised 520 Grade Tension Rods in M16, M85 and M100. Work is expected to be completed later on this year, ready to host FIFA 2018 World Cup. Macalloy is also supplying Tension Rods to 4 other Russian Stadiums/Arena's - again these venues will be hosting the 2018 World Cup.



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Site Services

Macalloy can provide support for installation and stressing of all our products. Site services support includes equipment hire, training of site personnel to install and tension bars and on site installation.

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