| Business | Phone |
| Bi-State Cash Register 4317 Maray Dr, Rockford 61107 | (815) 395-1234 |
| Cash Register Sales & Svc 3294 Pyramid Dr, Rockford 61109 | (815) 874-4085 |
| Cash Register Systems 2425 Charles St, Rockford 61108 | (815) 226-1066 |
| Mid-State Cash Register 4317 Maray Dr, Rockford 61107 | (217) 525-3890 |