61. Lagan Construction Group
- Chief executive: Kevin Anthony Lagan
- Pre-tax profit: £7.6m
- Employment: 527
- Pay bill: £25.3m
Lagan Construction Group, now in administration, has been known for its work in civil engineering and building for roads, airports, water, energy, marine and building.
It specialises in piling and foundation for civil engineering and building. It offers infrastructure investment advice and management including operation and maintenance.