| 262 | 02-006 | A | C IA R Water | Central Iowa Rural Water Association | Utilities |
| 1025 | 08-001 | A | MAEGS CdrRpd | MidAmerican Energy Gas Services (Cedar Rapids Area) | Utilities |
| 1325 | 10-055 | A | MAEGS SxCity | MidAmerican Energy Gas Services (Sioux City Area) | Utilities |
| 1342 | 10-076 | A | MAEGS QdCtys | MidAmerican Energy Gas Services (Quad-Cities Area) | Utilities |
| 1359 | 10-097 | A | Utility 1009 | Utility (Ottumwa area) | Utilities |
| 1385 | 10-131 | A | MAEGS DesMn1 | MidAmerican Energy Gas Services (Des Moines Area) | Utilities |
| 1389 | 10-135 | A | MAEGS DesMn2 | MidAmerican Energy Gas Services (Des Moines Area) | Utilities |
