 Iowa Steel Treating, INC. | Bettendorf | IA | Primary Metal Manufacturing331111 | 1-19 | ● ACTIVE |
| MBMorrison Brothers Company | Dubuque | IA | Primary Metal Manufacturing331524 | 1-19 | ◐ LIKELY ACTIVE |
| SSSivyer Steel Castings LLC | Bettendorf | IA | Primary Metal Manufacturing331513 | 1-19 | ◐ LIKELY ACTIVE |
| ABAcme Brass & Aluminum Foundry | Marshalltown | IA | Primary Metal Manufacturing331524 | 1-19 | ◇ UNVERIFIED |
| DCDenton Castings CO INC | Brandon | IA | Primary Metal Manufacturing331524 | 1-19 | ◇ UNVERIFIED |
| FHF & H Aluminum INC | Charles City | IA | Primary Metal Manufacturing331524 | 1-19 | ◇ UNVERIFIED |
| TLTdvib LLC | Boone | IA | Primary Metal Manufacturing331491 | 1-19 | ◐ LIKELY ACTIVE |
| KFKloppenborg Foundry & Fan CO | Davenport | IA | Primary Metal Manufacturing331521 | 1-19 | ◐ LIKELY ACTIVE |
| ALAnyGlide, LLC | Rock Valley | IA | Primary Metal Manufacturing331318 | 1-19 | ◐ LIKELY ACTIVE |
| PGPhoenix Global, LLC-Wilton | Wilton | IA | Primary Metal Manufacturing331110 | 1-19 | ◐ LIKELY ACTIVE |
| SRSSAB R & D of SSAB Iowa Inc. | Muscatine | IA | Primary Metal Manufacturing331110 | 1-19 | ◐ LIKELY ACTIVE |
| GLGFrench, LLC | Arnolds Park | IA | Primary Metal Manufacturing331210 | 1-19 | ◇ UNVERIFIED |
| SISoutheast Iowa Aluminum Foundry, INC. | Keokuk | IA | Primary Metal Manufacturing331314 | 1-19 | ◇ UNVERIFIED |
| TIThe Iron Works LTD. | Des Moines | IA | Primary Metal Manufacturing331110 | 1-19 | ◇ UNVERIFIED |
| TMThorne Metal Works | Parkersburg | IA | Primary Metal Manufacturing331522 | 1-19 | ◇ UNVERIFIED |
