| Business | Phone |
| Upwafscme 841 Kolu St, Wailuku 96793 | (808) 244-0815 |
| Hawaii Government Emplys Assn 2145 Kaohu St 206, Wailuku 96793 | (808) 244-5508 |
| Afl-Cio 330 Hookahi St, Wailuku 96793 | (808) 242-6891 |
| Afl-Cio Mason's Union 1823 Wells St 3, Wailuku 96793 | (808) 244-9504 |
| T G Masonry 2125 Ihumai Pl, Wailuku 96793 | (808) 249-0749 |
| Ibew 291 Hookahi St 108, Wailuku 96793 | (808) 244-8002 |
| Ilwu 896 Lower Main St, Wailuku 96793 | (808) 244-9191 |
| Laborers International Union 811 Kolu St 102, Wailuku 96793 | (808) 244-7071 |