| 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 | — | — |
| 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. 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) 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 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 | — | — |
| Abc Handyman Hawaii | Abc Handyman Hawaii | — | (808) 722-1120 | Windows, patio, painters | Honolulu · Honolulu 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 | — | — |
| Aceret Electrical Service LLC | Aceret Electrical Service LLC | aceretelectricalservice@gmail.com | (808) 382-2131 | Electricians | Wahiawa · Honolulu County | — | — |
| Action Roofing Hawaii LLC | Action Roofing Hawaii LLC | actionroofinghawaii100@gmail.com | (808) 782-1035 | Other roofers | Kapolei · Honolulu 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 | — | — |
| Agency Rentals | Agency Rentals | — | (808) 944-9000 | Property managers | Honolulu · Honolulu County | — | — |
| Agt Construction LLC | Agt Construction LLC | admin@agtconstruction.com | (808) 638-9444 | GC, remodel, ADU | Haleiwa · Honolulu County | — | — |
| Air Central LLC | Air Central LLC | jesse@aircentral.com | (763) 208-2840 | HVAC | Honolulu · Honolulu County | — | — |
| Air Conditioning Experts LLC | Air Conditioning Experts LLC | airconditioningexpertshi@gmail.com | (808) 732-2236 | HVAC | Honolulu · Honolulu County | — | — |
| Air Engineering Company Inc. | Air Engineering Company Inc. | info@airengineering.com | (800) 558-4318 | HVAC | Honolulu · Honolulu County | — | — |
| Air Masters INC | Air Masters INC | info@air-masters.com | (808) 848-2473 | HVAC | Honolulu · Honolulu County | — | — |
| Air Source Air Conditioning | Air Source Air Conditioning | airsourceac@yahoo.com | (808) 300-4651 | HVAC | Honolulu · Honolulu County | — | — |
| Akamai Glass Company INC | Akamai Glass Company INC | customerservice@akamaiglass.com | (808) 306-7222 | Windows, patio, painters | Honolulu · Honolulu County | — | — |
| Akimoto Construction INC | Akimoto Construction INC | — | (808) 746-5504 | GC, remodel, ADU | Honolulu · Honolulu County | — | — |
| Alaka'i Mechanical Corporation | Alaka'i Mechanical Corporation | — | (808) 834-1085 | HVAC | Honolulu · Honolulu County | — | — |
| Alan Shintani INC | Alan Shintani INC | — | (808) 841-7631 | GC, remodel, ADU | Waipahu · Honolulu County | — | — |
| Alert Alarm Of Hawaii | Alert Alarm Of Hawaii | — | (808) 521-5000 | Alarm and generators | Honolulu · Honolulu County | — | — |
| Ali'i Beach Rentals | Ali'i Beach Rentals | — | (800) 651-5657 | Property managers | Honolulu · Honolulu County | — | — |
| Ali'i Security Systems INC | Ali'i Security Systems INC | — | (808) 847-6777 | Alarm and generators | Honolulu · Honolulu County | — | — |
| Alii Wiring LLC | Alii Wiring LLC | — | (808) 386-2004 | Electricians | Honolulu · Honolulu County | — | — |
| All American Painting INC | All American Painting INC | — | (949) 679-5800 | Windows, patio, painters | Honolulu · Honolulu County | — | — |
| All G Electric LLC | All G Electric LLC | info@allgelectric.com | (808) 531-2554 | Electricians | Kailua · Honolulu County | — | — |
| All Island Rollshutter LLC | All Island Rollshutter LLC | — | (808) 833-3355 | Windows, patio, painters | Honolulu · Honolulu County | — | — |
| All Weather Waterproofing INC | All Weather Waterproofing INC | info@allweatherwaterproofing.com | — | Other roofers | Honolulu · Honolulu County | — | — |
| All World Glass LLC | All World Glass LLC | — | (808) 940-9988 | Windows, patio, painters | Honolulu · Honolulu County | — | — |
| All-Stripe LLC | All-Stripe LLC | — | (808) 366-5505 | Other | Honolulu · Honolulu County | — | — |