| Business | Phone |
| Bartell Corp 1038 S La Grange Rd 4, La Grange 60525 | (630) 595-6999 |
| Helm Electrical Svc 5303 9th Ave, La Grange 60525 | (708) 579-1000 |
| Highland Mechanical 6220 S Brainard Ave, La Grange 60525 | (630) 852-8583 |
| Ihp Electric Co 11303 Tecumseh Ln, La Grange 60525 | (708) 246-0135 |
| Jem Electric Svc La Grange 60525 | (708) 352-4770 |
| Lyons-Pinner Electric Inc 650 E Elm Ave, La Grange 60525 | (708) 485-7577 |
| Scheck Mechanical Corp 500 E Plainfield Rd, La Grange 60525 | (708) 482-8100 |
| Southwest Electric Co 8312 Joliet Rd, La Grange 60525 | (708) 447-8800 |
| Stammp Electric 5548 Harvey Ave, La Grange 60525 | (708) 246-7749 |
| Turbo Electric Inc 45 S Spring Ave, La Grange 60525 | (708) 352-8575 |
| Par Electrical Contractors Inc 6432 Joliet Rd, La Grange 60525 | (708) 352-7663 |
| Riordan Electric Inc 420 9th Ave, La Grange 60525 | (708) 482-8140 |
| Tunnel Electric Construction 340 Washington Ave, La Grange 60525 | (708) 354-9000 |