- Blast furnaces and steel mills (5)
- Steel wire and related products (2)
- Gray and ductile iron foundries (1)
- Aluminum extruded products (1)
- Nonferrous rolling and drawing, nec (1)
- Nonferrous wiredrawing and insulating (1)
The following companies are listed in the PowerProfiles business database for the Honolulu, Hawaii region and for the category Primary Metal Industries.