Click on Select for additional information on this processor.
| Select | Processor Name | City | State |
| Select | Heidtman Steel - Cleveland Division | | |
| Select | Heidtman Steel Products-Baltimore Division | Sparrows Point | MD |
| Select | Heidtman Steel Products-Bedford Division | Erie | MI |
| Select | Heidtman Steel Products-Butler Division | Butler | IN |
| Select | Heidtman Steel Products-Corporate Office | Toledo | OH |
| Select | Heidtman Steel Products-Crawfordsville Division | Crawfordsville | IN |
| Select | Heidtman Steel Products-Enterprise Division | Toledo | OH |
| Select | Heidtman Steel Products-Granite City | Granite City | IL |
| Select | Heidtman Steel Products-Lavoy Division | Erie | MI |
| Select | Heidtman Steel Products-Mizar Division | Toledo | OH |
| Select | Heidtman Steel Products-NGI Division | Monroe | MI |
| Select | Heidtman Steel Products-Orca Division | Gibralter | MI |