| Business | Phone |
| Accurate Electric Co 2312 Adams St, Gary 46407 | (219) 882-3032 |
| Bellsom Electric 504 Broadway, Gary 46402 | (219) 886-7729 |
| Continental Electric Co 9501 E 5th Ave, Gary 46403 | (219) 938-3460 |
| D & J Electrical Specialties 1020 W 5th Ave, Gary 46402 | (219) 881-0024 |
| Divane Brothers Electric Co 7592 Melton Rd, Gary 46403 | (219) 939-4230 |
| Great Lakes Electrical Mntnc 3817 Hayes St, Gary 46408 | (219) 980-2710 |
| Island Electric N Construction Gary 46403 | (219) 939-6096 |
| Lakeside Electric 145 N Hamilton St, Gary 46403 | (219) 938-1182 |
| Lincoln Electric Co 145 N Hamilton St, Gary 46403 | (219) 938-2670 |
| Matthews & Sons Electric Co 295 N Lake St, Gary 46403 | (219) 939-2535 |
| Meade Electric Co Inc 650 S Lake St # A, Gary 46403 | (219) 939-4301 |
| Merit Electric Gary 46404 | (219) 977-0911 |
| Nationwide Electric 1525 Clark Rd, Gary 46404 | (219) 949-8410 |
| Region Electric Inc 3850 Grant St, Gary 46408 | (219) 887-5500 |
| Sherrell Electric Co 2784 Van Buren St, Gary 46407 | (219) 883-6120 |
| U-Go Electric Co Inc 3635 W Ridge Rd, Gary 46408 | (219) 884-8888 |
| Walker & Sons Electric Inc 3481 Rhode Island St, Gary 46409 | (219) 887-0692 |