| Business | Phone |
| Parker Building Dept 19600 E Parker Square Dr, Parker 80134 | (303) 841-1970 |
| Parker Building Dept 20120 E Main St, Parker 80138 | (303) 841-1970 |
| Parker Town Planning Dept 20120 E Main St, Parker 80138 | (303) 841-2332 |
| Fleet Maintenance 17801 E Plaza Dr, Parker 80134 | (303) 840-8073 |
| Mainstreet Center 19650 E Main St, Parker 80138 | (303) 805-7728 |