| | Plant Name | City | Plant Number |
| ADM Clinton Corn Processing | Clinton | 23-01-006-01 |
|
| ADM CORN PROCESSING / COGEN PLANT - CLINTON | CLINTON | 23-01-006-02 |
|
| ADM Clinton Bioprocessing | Clinton | 23-01-006-03 |
|
| ADM Corn Processing - Cedar Rapids | Cedar Rapids | 57-01-080 |
|
| ADM - DES MOINES SOYBEAN | DES MOINES | 77-01-045 |
|
| Alter Metal Recycling - Council Bluffs | Council Bluffs | 78-01-043 |
|
| Arconic US LLC | Riverdale | 82-01-002 |
|
| AMES MUNICIPAL ELECTRIC SYSTEM | AMES | 85-01-006 |
|
| AMERICAN PACKAGING CORPORATION | STORY CITY | 85-03-003 |
|
| Ag Processing, Inc - Sergeant Bluff | Sergeant Bluff | 97-04-005 |
|
| Ag Processing, Inc - Eagle Grove | Eagle Grove | 99-01-001 |