| Metal Matrix Composite | Nonferrous Metal | Ferrous Metal |
| Electronic/Magnetic Alloy | Metal Foam, Mesh, or Honeycomb | Intermetallic |
| American Utility Metals | Astaras Incorporated | China Tungsten |
| International Mold Steel | Johnson Matthey | Less Common Metals |
| Lucas-Milhaupt | Materion | Parker Chomerics |
| Parkway Products | Wingate Alloys | Zircar Ceramics |