| System Name | Type | City |
|---|---|---|
| Atlantic Communications | LTR Standard | Various |
| Central Maine Power | LTR Standard | Various |
| Hussey Communications (Winslow) | LTR Standard | Winslow |
| Maine Radio | DMR Motorola Connect Plus (TRBO) | Various |
| Maine State Communications Network (MSCommNet) | Project 25 Phase I | Statewide |
| RCM Communications (Hytera XPT) | DMR Hytera XPT | Portland |
| Waterville Police | DMR Motorola Connect Plus (TRBO) | Waterville |
