| Business | Phone |
| Aircond Hawaii Inc 500 Kalanianaole Ave, Hilo 96720 | (808) 961-4738 |
| Rainbow Isle Refrigeration 831 Leilani St F, Hilo 96720 | (808) 935-4424 |
| Scott's Refrigeration Hilo 96720 | (808) 961-2777 |
| Oahu Air Conditioning C0 494 Kalanikoa St, Hilo 96720 | (808) 961-9600 |
| Heide & Cook Ltd 11 Pookela St, Hilo 96720 | (808) 935-3231 |
| Hilo Mechanical Inc 50 Holomua St, Hilo 96720 | (808) 961-3882 |
| Carrier Corp Hc 1 Box 5614, Hilo 96720 | (808) 933-2653 |