| Business | Phone |
| Cash Register Repair 2829 Waterman Ave, Pittsburgh 15227 | (412) 884-6911 |
| Clark Cash Register Co 405 Wabana St, Pittsburgh 15214 | (412) 766-2266 |
| Micros Systems 103 Merchant Ln, Pittsburgh 15205 | (412) 446-2703 |
| Ncr Corp 355 Fleet St, Pittsburgh 15220 | (412) 922-4310 |
| Roth Computer Register Co 1600 Saw Mill Run Blvd, Pittsburgh 15210 | (412) 884-5700 |