| Business | Phone |
| Wizard Enterprises 905 E Us Highway 30, Carroll 51401 | (712) 792-3872 |
| Carroll Computers 225 W 4th St, Carroll 51401 | (712) 792-4606 |
| Computer Stop 626 1/2 N Court St, Carroll 51401 | (712) 792-6058 |
| Fox Computers 225 W 4th St, Carroll 51401 | (712) 792-8990 |