| Business | Phone |
| Iowa Business Machines Inc 1009 Decathlon Dr, Waterloo 50701 | (319) 233-3309 |
| Dhein's Hardware Home & Garden 7 W Airline Hwy, Waterloo 50703 | (319) 232-6225 |
| A Computer Place 2733 University Ave, Waterloo 50701 | (319) 236-6175 |
| Computer Concepts 204 E 4th St, Waterloo 50703 | (319) 287-7999 |
| Dos Country Computer Systems 6344 E Mount Vernon Rd, Waterloo 50703 | (319) 822-2414 |
| Warren Computer Ctr 1945 E Mitchell Ave, Waterloo 50702 | (319) 232-9504 |