| Accurate Diamond Tool Corp. | Glen Carbide |
| Advanced Vacuum Systems | Hydro Carbide |
| Advanced Carbide Grinding | Hydro-Pac Inc. |
| Aggressive Grinding Service | Innovative Carbide Inc. |
| Alldyne Powder Technologies | Kennametal |
| Alro Steel | Kukurin, James R. Associates |
| ATI Alldyne | Metal-Tech America |
| Barney Machinery | Newcomer Products |
| Basic Carbide | Penn United Carbide |
| Blackhawk Grinding | Plant Service |
| Carbidie | Ralph Esposito And Company |
| Carbide Concepts Co. | Rite-Way Tool |
| Citco Operations | Robert E. Morris Co. |
| Crucible Service Centers | Shu Powders limited |
| Crystallume Eng. Diamond Products | Silver Eagle Technology |
| Custom Carbide Grinding | Spectrographic Technologies |
| Daughtery Tool | Trexler Rubber |
| Dura-Metal Products | Tri R Sales |
| Dyer Industries | Umicore |
| Elizabeth Carbide Die | Union Process |
| Elizabeth Carbide Components | Vista Metals |
| Erowa Technology | Walker LDJ Scientific, Inc. |
| Fantastic Tool Inc. | Zigong International Marketing,LLC |
| Fine Line Printing | |
| Gasbarre Products, Inc. | |
| General Carbide Corporation | |
| H.C. Starck, Inc. |