| 4front Construction LLC | 4front Construction LLC | forefrontconstruction@hotmail.com | (678) 640-7297 | GC, remodel, ADU | Honolulu · Honolulu County | — | — |
| 5 Star Plumbing LLC | 5 Star Plumbing LLC | chrisb@starplumbing.com | — | Other | Honolulu · Honolulu County | — | — |
| 8 Pacific Mason LLC | 8 Pacific Mason LLC | cs@pacificmason.com | (929) 741-0509 | Other | Kapaa · Kauai County | — | — |
| 808 Climate Control LLC | 808 Climate Control LLC | contact@climatecontrol.com | (519) 322-2515 | HVAC | Kaneohe · Honolulu County | — | — |
| 808 Paving LLC | 808 Paving LLC | john@paving.com | — | Other | Waianae · Honolulu County | — | — |
| A & K Landscape Services LLC | A & K Landscape Services LLC | info@aklandscapeservices.com | (808) 722-4410 | Windows, patio, painters | Kailua · Honolulu County | — | — |
| A A A Roofers Hawaii Llc. | A A A Roofers Hawaii Llc. | — | (808) 531-2211 | Other roofers | Waipahu · Kalawao County | — | — |
| A Cut Above Roofing | A Cut Above Roofing | acarmaui@gmail.com | (808) 870-2130 | Other roofers | Lahaina · Maui County | — | — |
| A. H. Construction L.l.c. | A. H. Construction L.l.c. | buba@ahconstructionllc.com | — | GC, remodel, ADU | Honolulu · Honolulu County | — | — |
| A/c Warehouse | A/c Warehouse | info@acwarehousehi.com | (808) 633-8255 | HVAC | Kahului · Maui County | — | — |
| A/c Warehouse | A/c Warehouse | info@acwarehousehi.com | (808) 545-3084 | HVAC | Honolulu · Honolulu County | — | — |
| Aa Electric Ltd. | Aa Electric Ltd. | — | (808) 841-4131 | Electricians | Honolulu · Honolulu County | — | — |
| Aaa Roofers Hawaii LLC | Aaa Roofers Hawaii LLC | aaaroofershawaii@gmail.com | — | Other roofers | Waipahu · Honolulu County | — | — |
| Aaa Roofing Company And General Contractors Inc. | Aaa Roofing Company And General Contractors Inc. | — | (808) 879-0459 | Other roofers | Kihei · Maui County | — | — |
| Aaa Signs LLC | Aaa Signs LLC | — | (337) 233-5686 | Other | Honolulu · Honolulu County | — | — |
| Aaa Water Damage Restoration & Carpet Care | Aaa Water Damage Restoration & Carpet Care | — | (808) 349-3407 | Restoration | Honolulu · Honolulu County | — | — |
| Aaron's Contracting LLC | Aaron's Contracting LLC | — | (808) 875-8287 | Restoration | Kihei · Maui County | — | — |
| Abc Handyman Hawaii | Abc Handyman Hawaii | — | (808) 722-1120 | Windows, patio, painters | Honolulu · Honolulu County | — | — |
| Abc Supply Co. Inc.Protected | Abc Supply Co. Inc. | — | (808) 327-0445 | Tile roofers | Kailua-Kona · Hawaii County | — | — |
| Abc Supply Co. Inc. | Abc Supply Co. Inc. | — | (808) 877-6507 | Other roofers | Kahului · Maui County | — | — |
| Able Electric INC | Able Electric INC | — | (808) 961-3759 | Electricians | Hilo · Hawaii County | — | — |
| Able Pest Management | Able Pest Management | — | (808) 353-5299 | Pest, tile roofs | Waipahu · Honolulu County | — | — |
| Absolute Termite And Pest Control | Absolute Termite And Pest Control | — | (808) 260-7889 | Pest, tile roofs | Kapolei · Honolulu County | — | — |
| AC Cleaning Hawaii | AC Cleaning Hawaii | — | (808) 216-6070 | HVAC | Honolulu · Honolulu County | — | — |
| Ac/dc Systems | Ac/dc Systems | — | (808) 870-3943 | Electricians | Kihei · Maui County | — | — |
| Access Hardware INC | Access Hardware INC | — | (800) 348-2263 | Alarm and generators | Kahului · Maui County | — | — |
| Accu-Pest & Termite Control Services LLC | Accu-Pest & Termite Control Services LLC | — | (808) 244-3929 | Pest, tile roofs | Kahului · Maui County | — | — |
| Ace Auto Glass - Kauaʻi | Ace Auto Glass - Kauaʻi | — | (808) 245-8084 | Windows, patio, painters | Lihue · Kauai County | — | — |
| Aceret Electrical Service LLC | Aceret Electrical Service LLC | aceretelectricalservice@gmail.com | (808) 382-2131 | Electricians | Wahiawa · Honolulu County | — | — |
| Acs Air Conditioning Specialists Inc. | Acs Air Conditioning Specialists Inc. | — | (808) 329-2996 | HVAC | Kailua-Kona · Hawaii County | — | — |
| Action Electric INC | Action Electric INC | — | (414) 940-6717 | Electricians | Kapaa · Kauai County | — | — |
| Action Group LLC | Action Group LLC | info@actiongroup.com | — | GC, remodel, ADU | Other County | — | — |
| Action Roofing Hawaii LLC | Action Roofing Hawaii LLC | — | (808) 782-1035 | Other roofers | Kapolei · Kalawao County | — | — |
| Action Roofing Hawaii LLC | Action Roofing Hawaii LLC | actionroofinghawaii100@gmail.com | (808) 782-1035 | Other roofers | Kapolei · Honolulu County | — | — |
| Activated Builders LLC | Activated Builders LLC | puanani@activatedbuilders.com | (808) 720-0770 | GC, remodel, ADU | Kalaheo · Kauai County | — | — |
| Admor HVAC Producs INC - Kona Big Island | Admor HVAC Producs INC - Kona Big Island | — | (808) 731-3778 | HVAC | Kailua-Kona · Hawaii County | — | — |
| Admor HVAC Products Inc. - Kauai | Admor HVAC Products Inc. - Kauai | — | (808) 632-2665 | HVAC | Lihue · Kauai County | — | — |
| Admor HVAC Products Inc. - Maui | Admor HVAC Products Inc. - Maui | — | (808) 446-8900 | HVAC | Kahului · Maui County | — | — |
| Adt Security Services | Adt Security Services | — | (808) 206-7557 | Alarm and generators | Honolulu · Honolulu County | — | — |
| Advanced A/c Contracting | Advanced A/c Contracting | — | (808) 847-4814 | HVAC | Honolulu · Honolulu County | — | — |