| Business | Phone |
| North Country Business Prod 3823 W Locust St, Davenport 52804 | (563) 388-5220 |
| Burrows Business Systems 1416 W 16th St 105, Davenport 52804 | (563) 323-9204 |
| Cash Register Ctr 1200 E 9th St, Davenport 52803 | (563) 322-1928 |
| Retail Data Systems-Davenport 6027 N Brady St, Davenport 52806 | (563) 386-9640 |