| 1 | Utility Products Co. | | USA |
| 2 | Railmex Inc. | | USA |
| 3 | Piping Technology & Products Inc. | | USA |
| 4 | Hyspan Precision Products Inc. | | USA |
| 5 | RSJK Inc. | | USA |
| 6 | Metraflex Co. | | USA |
| 7 | Flexicraft Industries | | USA |
| 8 | Reed Manufacturing Co. | | USA |
| 9 | Southeastern Hose Inc. | | USA |
| 10 | CRP Tank Specialties Inc. | | USA |
| 11 | L B & A Inc. | | USA |
| 12 | Kelco Industries | | USA |
| 13 | ASC Engineered Solutions | | USA |
| 14 | PEP A Ryan Herco Flow Solutions Company | | USA |
| 15 | MRC Global | | USA |
| 16 | Jove Pipe & Duct Support Systems Div of JTI Companies Inc | | USA |
| 17 | DME Inc. | | USA |
| 18 | Eaton Crouse-Hinds Division | | USA |
| 19 | Globe Pipe Hanger Products Inc. | | USA |
| 20 | Southland Tool Mfg Inc. | | USA |
| 21 | TechSouth Inc. | | USA |
| 22 | Duraflex Inc. Metal Bellows | | USA |
| 23 | MSI Pipe Protection Technologies | | USA |
| 24 | CK Composites LLC. | | USA |
| 25 | Adsco Manufacturing LLC | | USA |
| 26 | E-Z Line Pipe Support Co. Inc. | | USA |
| 27 | F.W. Webb Company Thermoplastic Piping Div. | | USA |
| 28 | MIRO Industries Inc. | | USA |
| 29 | Senior Flexonics Pathway Inc. | | USA |
| 30 | CDI Meters Inc | | USA |
