69. Macnaughton Blair
- Chief executive: Peter Kearney
- Pre-tax profit: £5.3m
- Employment: 450
- Pay bill: £12.9m
Macnaughton Blair is part of Grafton Group plc, one of the largest builders and plumbers merchanting groups in the UK and the largest in Ireland. It’s recently rebranded its customer-facing business as MacBlair
The company is the leading builder’s merchanting group in Northern Ireland with a long-established 15-branch network.