| Business | Phone |
| American Wireless Corp 85 N Pioneer Rd 102a, Fond Du Lac 54935 | (920) 921-8890 |
| Amber Systems Group Llc 104 S Main St, Fond Du Lac 54935 | (920) 322-9011 |
| Best Buy 335 N Pioneer Rd, Fond Du Lac 54935 | (920) 924-6051 |
| Quantum Communication 85 N Pioneer Rd 101, Fond Du Lac 54935 | (920) 923-1847 |
| Singleton Electronics 16 N Brooke St, Fond Du Lac 54935 | (920) 922-9949 |
| Sound Mekanix 443 Arlington Ave, Fond Du Lac 54935 | (920) 921-9770 |
| Broadband Solutions 74 Halbach Ct, Fond Du Lac 54937 | (920) 322-9520 |