| Business | Phone |
| All Phase Electric Inc 755 Armour Rd, Oconomowoc 53066 | (262) 567-4041 |
| David E Buss 725 W Highland Ave, Oconomowoc 53066 | (262) 567-0925 |
| Wangerin Electric W334n6902 Stonebank Rd, Oconomowoc 53066 | (262) 367-3519 |
| Electric Guy W128 Allen Rd, Oconomowoc 53066 | (262) 567-7891 |
| Electric Wiring Svc Oconomowoc 53066 | (262) 567-8700 |
| Rlt Inc W352n6440 Road J, Oconomowoc 53066 | (262) 679-9588 |
| J R Wittkopp Electric Co 1426 Crystal Lake Dr, Oconomowoc 53066 | (262) 569-1900 |