| Business | Phone |
| Technology Associates Plainfield 60544 | (815) 609-1321 |
| I T Solutions 23856 W Industrial Dr S, Plainfield 60585 | (815) 577-6500 |
| Iso Communications Inc 24937 Jordan Ln, Plainfield 60544 | (815) 254-4994 |
| Midwest Wiring Solutions 2914 Ruth Fitzgerald Dr, Plainfield 60586 | (815) 439-8600 |