| ROOF SAFETY SYSTEMS Abseiling Applications | HARCON SERVICES LIMITED |
| MMA ARCHITECTURAL SYSTEMS LTD |
| ROOF SAFETY SYSTEMS Equipment Recertification Service | APS SAFETY SYSTEMS LTD |
| HARCON SERVICES LIMITED |
| ROOF SAFETY SYSTEMS Glazed Area Fall Protection Barriers | APS SAFETY SYSTEMS LTD |
| DANI ALU UK LTD |
| HARCON SERVICES LIMITED |
| ROOF SAFETY SYSTEMS Permanent | APS SAFETY SYSTEMS LTD |
| BILCO UK LTD |
| DANI ALU UK LTD |
| GUARDRAIL ENGINEERING LTD |
| HARCON SERVICES LIMITED |
| ICB (WATERPROOFING) LTD |
| KEE SAFETY LTD |
| KEE SYSTEMS LTD |
| POWER ACCESS SYSTEMS LTD |
| SAFESITE LTD |
| SIKA LIQUID PLASTICS LTD |
| SIKA SARNAFIL |
| ROOF SAFETY SYSTEMS Permanent Ridge | BILCO UK LTD |
| HARCON SERVICES LIMITED |
| KEE SAFETY LTD |
| POWER ACCESS SYSTEMS LTD |
| ROOF SAFETY SYSTEMS Roof Openings Fall Protection Barriers | DANI ALU UK LTD |
| HARCON SERVICES LIMITED |
| ROOF SAFETY SYSTEMS Rooflight Fall Protection Barriers | APS SAFETY SYSTEMS LTD |
| DANI ALU UK LTD |
| HARCON SERVICES LIMITED |
| ICB (WATERPROOFING) LTD |
| KEE SAFETY LTD |
| KEE SYSTEMS LTD |
| SAFESITE LTD |
| ROOF SAFETY SYSTEMS Travel Restraint Access Modules | HARCON SERVICES LIMITED |
| ROOF SAFETY SYSTEMS Valley Frames | APS SAFETY SYSTEMS LTD |
| BILCO UK LTD |
| KEE SYSTEMS LTD |
| SAFESITE LTD |
