| TUNNEL Arches | NORMET UK LTD |
| TUNNEL Cable Support Systems | HALFEN LTD |
| TUNNEL Caulking Mortars | NORMET UK LTD |
| WEBER CONSTRUCTION MORTAR PRODUCTS |
| TUNNEL Concrete Pumps | NORMET UK LTD |
| Phi Group - Retaining Structures |
| TUNNEL Grouting Systems | NORMET UK LTD |
| Phi Group - Retaining Structures |
| TUNNEL Joint Sealants | NORMET UK LTD |
| TUNNEL Mortar Injection Equipment | NORMET UK LTD |
| Phi Group - Retaining Structures |
| TUNNEL Portal Erosion Protection | MACCAFERRI LTD |
| TUNNEL Redundant Void Filling | NORMET UK LTD |
| TUNNEL Repair | NORMET UK LTD |
| Phi Group - Retaining Structures |
| S1E LIMITED |
| TUNNEL Shotcreting Equipment | NORMET UK LTD |
| TUNNEL Support Systems | NORMET UK LTD |
| TUNNEL Ventilation Systems | EXYTE HARGREAVES LTD |
| FLÄKTGROUP UK LTD |
