| Business | Phone |
| Als Accurate Electric Po Box 551, Addison 60101 | (630) 361-2021 |
| Elmhurst Electric Co 330 W Laura Dr, Addison 60101 | (630) 543-4626 |
| Chicago Converting Co 901 S Rohlwing Rd, Addison 60101 | (630) 495-3050 |
| David Dench 313 W Fay Ave, Addison 60101 | (630) 543-3730 |
| Connelly Electric Co 40 S Addison Rd 100, Addison 60101 | (630) 543-9059 |