| Business | Phone |
| Betschart Electric Co 500 Cherry St Se, Olympia 98501 | (360) 943-4545 |
| Chambers Prairie Electric 3944 74th Ave Se, Olympia 98501 | (360) 412-7453 |
| Electrical Construction Spec Olympia 98501 | (360) 943-1363 |
| Sequoyak Electric Olympia 98501 | (360) 352-0770 |
| Taurus Electric 1036 73rd Ave Se, Olympia 98501 | (360) 754-8491 |
| Thurston Electric Inc Olympia 98501 | (360) 357-2525 |
| Wood Electric Inc 3735 Boulevard Rd Se, Olympia 98501 | (360) 352-4333 |
| Dependable Electric 1501 Hays Ave Nw, Olympia 98502 | (360) 753-5692 |
| Slaymaker Safe & Sound Elec 2103 Harrison Ave Nw 2116, Olympia 98502 | (360) 866-7586 |
| Advanced Plumbing Technologies 204 Quince St Ne 103, Olympia 98506 | (360) 867-0058 |
| On Time Electric Olympia 98506 | (360) 459-9341 |
| Yarbrough Electric Inc Olympia 98506 | (360) 413-0870 |
| Bartlett Electric Po Box 296, Olympia 98507 | (360) 413-1246 |
| Advance Electric Svc Inc 6322 Renata Ln Sw, Olympia 98512 | (360) 357-3020 |
| Balsley Electric 715 N 6th Ave Sw, Olympia 98512 | (360) 943-7288 |
| Capital Electric Inc 3035 37th Ave Sw, Olympia 98512 | (360) 357-3237 |
| Cec Electrical Contractors 7320 Littlerock Rd Sw, Olympia 98512 | (360) 943-6056 |
| South Sound Electric 7342 Cedar Flats Rd Sw, Olympia 98512 | (360) 867-4100 |
| Tumwater Electric 8209 Littlerock Rd Sw, Olympia 98512 | (360) 790-3283 |