| Business | Phone |
| Apex Microtechnology 5980 N Shannon Rd, Tucson 85741 | (520) 690-8600 |
| Delta Energy Systems 4400 E Broadway Blvd # 803, Tucson 85711 | (520) 326-8401 |
| Dynamic Displays Inc 720 W Landoran Ln, Tucson 85737 | (520) 295-3680 |
| Glo-Quartz Co 1550 S Euclid Ave, Tucson 85713 | (520) 792-2331 |
| Global Products 4355 S Santa Rita Ave, Tucson 85714 | (520) 294-8060 |
| Ias 4175 S Fremont Ave # 105, Tucson 85714 | (520) 294-0898 |
| U S Microwave 2125 E 12th St, Tucson 85719 | (520) 622-2392 |
| Tusonix Inc 7741 N Business Park Dr, Tucson 85743 | (520) 744-0400 |
| Thaler Corp 2015 N Forbes Blvd # 109, Tucson 85745 | (520) 882-4000 |
| R & R Electrical Mfg Co 2049 W Highway Dr, Tucson 85705 | (520) 887-7630 |
| Lourdes Industries Inc 1150 E Aero Park Blvd, Tucson 85706 | (520) 295-9560 |
| Kyric Corp 2111 E 20th St, Tucson 85719 | (520) 624-2408 |
| Intelligent Instrumentation 3000 E Valencia Rd, Tucson 85706 | (520) 573-0887 |