| Business | Phone |
| K Positive Communication Corp 8100 E Maplewood Ave, Greenwood Vlg 80111 | (720) 529-5337 |
| Langstaff Communications 2860 E Willamette Ln, Greenwood Vlg 80121 | (303) 771-2781 |
| Psiphi Communications 4950 S Yosemite St # F2-325, Greenwood Vlg 80111 | (303) 649-9388 |
| Virteia Communications 5680 Greenwood Plaza Blvd, Greenwood Vlg 80111 | (720) 493-5533 |