| Business | Phone |
| Computer Forum 820 Lincoln St, Denver 80203 | (303) 861-4216 |
| Silver Anvil Engineering Corp Po Box 371738, Denver 80237 | (303) 755-1810 |
| Gauranteed Recycling Xperts 4920 Washington St, Denver 80216 | (720) 377-7700 |
| Inteck Inc 720 S Colorado Blvd # 610s, Denver 80246 | (303) 759-5511 |
| Luminous Electronics Recycling 14135 E 42nd Ave # 10, Denver 80239 | (303) 660-2000 |