| Business | Phone |
| Warren S Unemori Engineering 2145 Wells St 403, Wailuku 96793 | (808) 242-4403 |
| Arakaki Engineering 1867 E Vineyard St, Wailuku 96793 | (808) 242-5868 |
| Austin Tsutsumi & Assoc Inc 1871 Wili Pa Loop A, Wailuku 96793 | (808) 244-8044 |
| C Takumi Engineering 18 Central Ave, Wailuku 96793 | (808) 249-0411 |
| R T Tanaka Engineers Inc 871 Kolu St 201, Wailuku 96793 | (808) 242-6861 |
| Ronald M Fukumoto Engineering 1721 Wili Pa Loop 203, Wailuku 96793 | (808) 242-8611 |
| Sato & Assoc Inc 2115 Wells St, Wailuku 96793 | (808) 244-9265 |
| Engineering Dynamics 66 Wailani St, Wailuku 96793 | (808) 242-1644 |
| Harrison Associates 412 Kulaiwi Dr, Wailuku 96793 | (808) 249-0556 |
| Otomo Engineering Inc 305 S High St 102, Wailuku 96793 | (808) 242-0032 |