| 1 | Eagle Alloys Corp. | | USA |
| 2 | U.S. Industrial Piping Inc. | | USA |
| 3 | Coltwell Industries | | USA |
| 4 | American Tank & Fabricating Co. | | USA |
| 5 | Honematic Machine Corp. | | USA |
| 6 | Cust-O-Bend | | USA |
| 7 | Federal Steel Supply Inc. | | USA |
| 8 | Steel Forgings Inc. | | USA |
| 9 | Mannesmann DMV Stainless | | USA |
| 10 | AZCO Steel Company A Division of Bushwick Metals LLC | | USA |
| 11 | Arntzen Corp. | | USA |
| 12 | Wheatland Tube Co. | | USA |
| 13 | Piping Technology & Products Inc. | | USA |
| 14 | All Metal Sales Corp | | USA |
| 15 | American Cast Iron Pipe Company | | USA |
| 16 | Valiant Steel | | USA |
| 17 | Spiratex Co. | | USA |
| 18 | ICSE | | USA |
| 19 | ATI | | USA |
| 20 | Swepco Tube | | USA |
| 21 | American Spiralweld Pipe Co. LLC | | USA |
| 22 | Atlas Tube Inc. | | USA |
| 23 | Scot Hone Corp. | | USA |
| 24 | Lape Industrial Fiberglass Inc. | | USA |
| 25 | Century Industrial Supply Inc. | | USA |
| 26 | Eagle Stainless Tube & Fabrication Inc. | | USA |
| 27 | Morris Coupling Co. | | USA |
| 28 | Naylor Pipe Co. | | USA |
| 29 | Reliable Source Inc. | | USA |
| 30 | PEP A Ryan Herco Flow Solutions Company | | USA |
| 31 | Global Metals | | USA |
| 32 | Scot Industries | | USA |
| 33 | Southeast Texas Industries Inc. | | USA |
| 34 | Coremark Metals | | USA |
| 35 | Tri-Mer Corp. | | USA |
| 36 | Dynamic Products Inc. | | USA |
| 37 | Island Fitting | | USA |
| 38 | PDM Steel Service Centers Inc. | | USA |
| 39 | United Pipe Nipple Company | | USA |
| 40 | Manning Enterprises | | USA |
| 41 | Charlotte Pipe & Foundry Co. | | USA |
| 42 | Wheatland Tube Co. | | USA |
| 43 | Sewickley Construction Products Inc. | | USA |
| 44 | MRC Global | | USA |
| 45 | American Tank & Fabricating Co. | | USA |
| 46 | Cust-O-Bend | | USA |
| 47 | U.S. Industrial Piping Inc. | | USA |
| 48 | Mannesmann DMV Stainless | | USA |
| 49 | Pena-Plas Co. | | USA |
| 50 | H-P Products Inc. | | USA |
