Byrne Bros. (Formwork) Limited helps to provide a solid foundation for society. The concrete frame contractor constructs reinforced concrete structures and designs associated temporary works, such as climbing formwork systems for high-rise structures. The group serves commercial, retail, residential, scientific, and public sector markets, among others. Founded in 1974 by brothers Patsy and Johnny Byrne, the company has built frames for Imperial College, the British Library, and the Unilever House in the UK. Byrne Bros. is the largest member of the construction specialist Byrne Group.