| Company | NAYLOR CONSTRUCTION SERVICES CORP. |
| Business Number | 5134106 |
| Company | L & W PIPING LTD |
| Business Number | 4940557 |
| Company | CUTTING EDGE CONSTR. SERVICES LTD |
| Business Number | 4806008 |
| Company | LANCELOT PIPING LTD |
| Business Number | 4777517 |
| Company | PACE PIPING LTD |
| Business Number | 4736149 |