| 1 | Drawn Metal Tube | | USA |
| 2 | Coltwell Industries | | USA |
| 3 | DBJ Corporation | | USA |
| 4 | Chicago Pipe Bending & Coil Co. | | USA |
| 5 | NUCAP Energy | | USA |
| 6 | Aviva Metals Inc. | | USA |
| 7 | Wisconsin Metal Tech | | USA |
| 8 | Quality Pipe Products Inc. | | USA |
| 9 | Trenton Pipe Nipple Co. | | USA |
| 10 | Republic Brass SalesInc. | | USA |
| 11 | Ameritube LLC | | USA |
| 12 | United Pipe Nipple Company | | USA |
| 13 | A.W. Fraser | | USA |
| 14 | Stainless Specialties Inc. | | USA |
| 15 | Matsui USA Inc. | | USA |
| 16 | A Metal Source LLC | | USA |
| 17 | Metal & Cable Corp. Inc. | | USA |
| 18 | CMC Cometals | | USA |
| 19 | Arcadia Precision Waterjet | | USA |
| 20 | Wolverine Tube Inc. | | USA |
| 21 | Standard Nipple Works Inc. | | USA |
| 22 | Cameo Fabricators Inc. | | USA |
| 23 | Century Industrial Supply Inc. | | USA |
| 24 | Interstate Metal Inc. | | USA |
| 25 | California Metal & Supply Inc. | | USA |
| 26 | A-1 Alloys | | USA |
| 27 | Helander | | USA |
| 28 | AAA Metals Co. Inc. | | USA |
| 29 | Reliable Source Inc. | | USA |
| 30 | White Racker Co. | | USA |
| 31 | Metal Cutting Corp. | | USA |
| 32 | Zeman Manufacturing Co. | | USA |
| 33 | Seal Fast Inc. | | USA |
| 34 | Component Hardware Group | | USA |
| 35 | Global Metals | | USA |
| 36 | Vita Needle Co. | | USA |
| 37 | Cooney Brothers Inc. | | USA |
| 38 | Unity Tube | | USA |
| 39 | Meridian Valves | | USA |
| 40 | Lewis Brass & Copper Co. | | USA |
| 41 | Nivert Metal Supply Inc. | | USA |
| 42 | American Unibrass Tube | | USA |
| 43 | United States Brass & Copper | | USA |
| 44 | Cust-O-Bend | | USA |
| 45 | C.I. Thornburg Co. Inc. | | USA |
| 46 | Merit Brass Co. | | USA |
| 47 | Versa Fittings | | USA |
| 48 | Holloway Co. Inc. | | USA |
