| Business | Phone |
| Concrete Coring Co 4024 Jason St, Denver 80211 | (303) 433-8818 |
| Diamond Drilling & Sawing Co 1157 S Bannock St, Denver 80223 | (303) 733-3741 |
| Vigil's Concrete Tear-Out 7665 Sherman St, Denver 80221 | (303) 807-4872 |
| Millennium Concrete Cutting 5380 Tennyson St # B, Denver 80212 | (303) 455-5003 |
| Penhall Co 1385 Umatilla St, Denver 80204 | (303) 934-3866 |