| Business | Phone |
| Royal Hawaiian Electric Hawaiian Paradise Park, Keaau 96749 | (808) 982-6269 |
| Lorenz Electric 17-4061 Kuaaina Rd, Keaau 96749 | (808) 966-6968 |
| J K Electric Inc 16-206 Wiliama Pl, Keaau 96749 | (808) 966-7484 |
| Keaau Electric Po Box 1897, Keaau 96749 | (808) 982-9063 |