| Business | Phone |
| Allied Electronics 420 Front St # 104, Mchenry 60050 | (815) 759-9155 |
| Syntilla Systems Inc 801 Black Partridge Rd, Mchenry 60051 | (815) 344-9470 |
| Circuit City 2226 N Richmond Rd, Mchenry 60050 | (815) 759-1243 |
| Radio Shack 3716 W Elm St, Mchenry 60050 | (815) 344-6550 |