| Business | Phone |
| Randal S Furomoto & Assoc Inc 98-1247 Kaahumanu St 312, Aiea 96701 | (808) 484-0212 |
| Delta Echo 99-1669 Hoapono Pl, Aiea 96701 | (808) 486-0287 |
| Miyasato Kuniyoshi Engineers 99-205 Moanalua Rd 205, Aiea 96701 | (808) 488-7579 |
| Hawaii Engineering Group 98-023 Hekaha St # 2b, Aiea 96701 | (808) 486-2092 |