| S.no | Company Name | Founded | Country |
|---|---|---|---|
| 1 | Astro Met Inc. | USA | |
| 2 | PSM Industries Inc. | USA | |
| 3 | Reynolds Carbide Die Co. Inc. | USA | |
| 4 | Dura-Metal Products Corp. | USA | |
| 5 | Frecon Technologies Inc. | USA | |
| 6 | Milco Wire Edm | USA | |
| 7 | Dietech Na | USA | |
| 8 | Kennametal Engineered Products | USA | |
| 9 | LSP Industrial Ceramics Inc. | USA | |
| 10 | Yillik Precision Carbides Div. of PSM Industries | USA | |
| 11 | Elizabeth Carbide Die Co. Inc. | USA | |
| 12 | Elizabeth Carbide Components | USA | |
| 13 | Nitro EDM & Machining Inc. | USA |
