| Business Name | Address | |
| Puna Electric Svc | PO Box 505 Kurtistown, HI 96760 |
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| Industrial Contracting | Mountain View, HI 96771 |
|
| Royal Hawaiian Electric | Hawaiian Paradise Park Keaau, HI 96749 |
|
| J K Electric Inc | 16-206 Wiliama Pl Keaau, HI 96749 |
|
| Lorenz Electric | 17-4061 Kuaaina Rd Keaau, HI 96749 |
|