| Business | Phone |
| A & G Electric Co 490 E 14th St, Dubuque 52001 | (563) 588-4253 |
| Bechen Electric Inc 16494 Middle Rd, Dubuque 52002 | (563) 583-4947 |
| Biechler Electric Inc 7762 Wild Nest Ln, Dubuque 52003 | (563) 583-5366 |
| Brimeyer Electric 17616 S John Deere Rd, Dubuque 52001 | (563) 583-2823 |
| Budget Electric Dubuque 52001 | (563) 590-5679 |
| C P Pfohl Electric Co 265 E 19th St, Dubuque 52001 | (563) 583-2131 |
| Dixon Electrical Contractors 2505 Marquette Pl, Dubuque 52001 | (563) 556-1830 |
| Giese Electric 2125 Kerper Blvd, Dubuque 52001 | (563) 588-2023 |
| Kinsella Electric 9238 Military Rd, Dubuque 52003 | (563) 588-1157 |
| East Iowa Mechanical Inc 16635 Union Park Ln, Dubuque 52001 | (563) 557-1345 |
| Kringle Electric 2220 Southway Dr, Dubuque 52002 | (563) 582-4896 |
| Lewis Electric 17026 Mountain Rdg, Dubuque 52002 | (563) 588-3572 |
| Morse Electric Inc 395 S Main St, Dubuque 52003 | (563) 556-0828 |
| Paulson Electric Co 685 Century Dr, Dubuque 52002 | (563) 588-2373 |
| Paulson Electric Co 8000 Chavenelle Rd, Dubuque 52002 | (563) 556-1802 |
| Pregler Electric 10479 Timothy St, Dubuque 52003 | (563) 556-5544 |
| Root Electric 10065 River Vista Dr, Dubuque 52001 | (563) 590-1148 |
| Sisler Electric 10599 Jordan Ln, Dubuque 52003 | (563) 585-0449 |
| Spiegelhalter Electric 5555 Saratoga Rd 1, Dubuque 52002 | (563) 556-6367 |
| Ullrich Electric Co 909 Main St, Dubuque 52001 | (563) 556-5790 |
| Unison Solutions Llc 5451 Chavenelle Rd, Dubuque 52002 | (563) 585-0967 |
| Westphal & Co Inc 750 Cedar Cross Rd, Dubuque 52003 | (563) 583-5749 |