| System Name | Type | City |
|---|---|---|
| Alliant Energy | DMR Tier 3 Standard | Various |
| Deere and Company - DMR (IL/IA) | DMR Motorola Connect Plus (TRBO) | Multiple |
| Electronic Engineering (Ottumwa) | Motorola Type II Smartnet | Ottumwa |
| Iowa DMR Users Group | DMR Conventional Networked | Various |
| Iowa Statewide Interoperable Communications System (ISICS) | Project 25 Phase II | Statewide |
| Northeast Missouri Electric Power Cooperative | DMR Conventional Networked | Palmyra |
| T.I.P. Rural Electric Cooperative | DMR Conventional Networked | Brooklyn |
