Belfast Telegraph

86. Keystone Holdings

  • Founder: Sean Coyle
  • Pre-tax profit: £5.6m
  • Employment: 485
  • Pay bill: £12m

Keystone Group is the UK’s largest steel lintel manufacturer and Europe’s fastest growing roof window manufacturer.

The company says its has grown to its present position in the marketplace by establishing a reputation for reliable supply of quality specialist products.

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The company says that production facilities in South Derbyshire, Cwmbran, Cookstown and Poland provide an efficient working environment.

The company opened its first premises in 1989 in Cookstown, before adding a distribution depot in Birmingham eight years later. In 2006, it acquired IG Limited & Acier Building Components and added smartroof to its business in 2012.

Keystone Holdings

Derryloran Industrial Estate


BT80 9LU

Tel: 028 8676 2184