| Business | Phone |
| Advanced Technology Electrical 150 S Calhoun Rd, Brookfield 53005 | (262) 784-9995 |
| Alberti Electric Co 800 Mary Rose Ct, Brookfield 53045 | (262) 786-4200 |
| Brook Park Electric 19270 N Hills Dr, Brookfield 53045 | (262) 789-1304 |
| Wilson Electric Co 3080 San Marcos Dr, Brookfield 53005 | (262) 784-1520 |
| Uihlein Electric Co 12660 W Townsend St, Brookfield 53005 | (262) 781-1260 |
| Corwin W Rutkowski Brookfield 53005 | (262) 789-0466 |
| Current Electric 12625 W Burleigh Rd, Brookfield 53005 | (262) 786-5885 |
| Starr Electric Inc 17295 Oak Park Row, Brookfield 53045 | (262) 789-1212 |
| Electrical Solutions 18235 Patti Ln, Brookfield 53045 | (262) 786-6548 |
| G & G Electric Brookfield 53005 | (262) 784-0281 |
| Gaeth Electric Inc 20725 Brook Park Dr, Brookfield 53045 | (262) 784-6035 |
| Hagen Electric Inc 815 Russet Dr, Brookfield 53045 | (262) 821-5963 |
| Preuss Electric Brookfield 53005 | (262) 787-0000 |
| Kane Electric 4175 N 127th St, Brookfield 53005 | (262) 790-4441 |