| 1 | Mar-Cor Purification | | USA |
| 2 | Hanna Rubber Company | | USA |
| 3 | Perma-Pipe Inc. | | USA |
| 4 | Town & Country Plastics Inc. | | USA |
| 5 | Argos Corp. | | USA |
| 6 | PureFlex Inc | | USA |
| 7 | Riverside Plastics Inc. | | USA |
| 8 | Ultraflo Systems Inc | | USA |
| 9 | Plastic Depot | | USA |
| 10 | StormTech Inc. | | USA |
| 11 | Howard J. Moore Company Inc. | | USA |
| 12 | ISCO Industries LLC | | USA |
| 13 | Special Service Plastic Company Inc. | | USA |
| 14 | Osi Plastics | | USA |
| 15 | Orion Fittings | | USA |
| 16 | Vidon Plastics Inc. | | USA |
| 17 | Nupi Americas Inc. | | USA |
| 18 | Plastifab Industries Inc. | | USA |
| 19 | Corrosion Products Inc. | | USA |
| 20 | Uni-Spray Nozzles Inc. | | USA |
| 21 | Plastic Pipe & Supply Inc. | | USA |
| 22 | IPEX | | USA |
| 23 | NewAge Industries Inc. | | USA |
| 24 | Inline Plastics Inc. | | USA |
| 25 | Asahi/America Inc. | | USA |
| 26 | Ensinger Penn Fibre Inc. | | USA |
| 27 | Seelye Acquisitions Inc. | | USA |
| 28 | Calpex Plastics | | USA |
| 29 | Pore Technology Inc. | | USA |
| 30 | Micromold Products Inc. | | USA |
| 31 | IPEX | | USA |
| 32 | Saint-Gobain Life Sciences | | USA |
| 33 | NIBCO | | USA |
| 34 | Teel Plastics Inc. | | USA |
| 35 | Miller Plastic Products Inc. | | USA |
| 36 | Hudson Extrusions Inc. | | USA |
| 37 | Corr Tech Inc. | | USA |
| 38 | Atlantic Screen & Mfg. Inc. | | USA |
| 39 | Lane Enterprises Inc. | | USA |
| 40 | Composites USA | | USA |
| 41 | DBJ Corporation | | USA |
| 42 | ComPlex Plastics Inc. | | USA |
| 43 | Pena-Plas Co. | | USA |
| 44 | Aquatherm | | USA |
| 45 | Simtech Process Systems | | USA |
| 46 | Georg Fischer LLC | | USA |
