| Metal Matrix Composite | Nonferrous Metal | Ferrous Metal |
| Electronic/Magnetic Alloy | Metal Foam, Mesh, or Honeycomb | Intermetallic |
| 3M | Alliance LLC | ATI Wah Chang |
| Hardwire, LLC | Indium Corporation of America | KB Alloys |
| Kennametal Stellite | Kobe Steel | OMG Americas |
| PSM Industries | Zircar Ceramics |