| Business | Phone |
| Bonded Materials Co 150 Puuhale Rd, Honolulu 96819 | (808) 832-1157 |
| Quality Precast Products Inc 33 S King St # 517, Honolulu 96813 | (808) 682-1664 |
| Ewa Concrete Co 645 Ahua St B, Honolulu 96819 | (808) 839-1650 |
| Masonry Institute Of Hawaii 2305 Kahauiki St, Honolulu 96819 | (808) 841-6444 |
| Master Builders-Admixtures Honolulu 96819 | (808) 840-1104 |
| Jensen Precast 1255 Nuuanu Ave C104d, Honolulu 96817 | (808) 528-1175 |