| Business | Phone |
| Final Grade Pro Utility 931 14th St, Denver 80202 | (303) 534-2202 |
| Utility Telecom Consulting Grp 1554 Saint Paul St, Denver 80206 | (303) 840-1028 |
| Universal Utility Svc 6330 Washington St, Denver 80216 | (303) 853-4420 |
| Pivotal Utility Management 6825 E Tennessee Ave # 547, Denver 80224 | (303) 333-1250 |