| Business | Phone |
| Sparks Engineering 9690 Riding Ridge Rd, Las Vegas 89123 | (702) 458-2712 |
| Comfort Engineering Inc 9175 W Flamingo Rd, Las Vegas 89147 | (702) 367-0892 |
| National Medical Gas Svc Las Vegas 89101 | (702) 385-5805 |
| Logical Design Group Llc 4087 Industrial Rd, Las Vegas 89103 | (702) 247-1499 |
| Logical Design Group Llc 4625 Wynn Rd, Las Vegas 89103 | (702) 247-4005 |