| Business | Phone |
| Vista Continental 6600 W Charleston Blvd 117, Las Vegas 89146 | (702) 228-2077 |
| Arizona Gypsum Mining Co 3960 Howard Hughes Pkwy, Las Vegas 89109 | (702) 990-3690 |
| Can-Cal Resources Ltd 2500 Vista Mar Dr, Las Vegas 89128 | (702) 243-1849 |
| Nevada Mining Assn Las Vegas 89109 | (702) 892-3721 |
| Newmill Mining Assoc Inc 5300 W Sahara Ave, Las Vegas 89146 | (702) 579-4090 |
| Golden Century Corp 5500 Bentley Ave, Las Vegas 89142 | (702) 431-0830 |
| Grubstake Mining Inc 5445 Desert Point Dr B, Las Vegas 89118 | (702) 645-1926 |