| Marmol Hawaii INC | Marmol Hawaii INC | info@marmolhi.com | (808) 848-0842 | Pool | Honolulu · Honolulu County | — | — |
| Mashima Electric LLC | Mashima Electric LLC | micah@micahrich.com | — | Electricians | Kapolei · Honolulu County | — | — |
| Matthew A Garcia | Matthew A Garcia | amkryukov@gmail.com | — | GC, remodel, ADU | Kapolei · Honolulu County | — | — |
| Maui Waterscapes LLC | Maui Waterscapes LLC | impallari@gmail.com | (808) 877-0413 | Windows, patio, painters | Kapolei · Honolulu County | — | — |
| Mccray Global Protection – Honolulu Security Guard Services | Mccray Global Protection – Honolulu Security Guard Services | — | (808) 518-2714 | Alarm and generators | Honolulu · Honolulu County | — | — |
| Md Cleaners LLC | Md Cleaners LLC | — | (808) 528-3434 | GC, remodel, ADU | Honolulu · Honolulu County | — | — |
| Melvin Airconditioning | Melvin Airconditioning | — | (808) 255-4844 | HVAC | Honolulu · Honolulu County | — | — |
| Menehune Pest Management - Honolulu Hi | Menehune Pest Management - Honolulu Hi | — | (808) 793-4944 | Pest, tile roofs | Honolulu · Honolulu County | — | — |
| Merrell Bros INC | Merrell Bros INC | — | (800) 663-8830 | Other | Honolulu · Honolulu County | — | — |
| Michael G Chun | Michael G Chun | michael.chun03@gmail.com | — | Windows, patio, painters | Pearl City · Honolulu County | — | — |
| Midnight Tinting | Midnight Tinting | — | (808) 479-9488 | Windows, patio, painters | Honolulu · Honolulu County | — | — |
| Mk Flooring LLC | Mk Flooring LLC | lee@mkflooring.com | — | Other | Waipahu · Honolulu County | — | — |
| Mo's Painting LLC | Mo's Painting LLC | — | (509) 431-0054 | Windows, patio, painters | Mililani · Honolulu County | — | — |
| Modbox LLC | Modbox LLC | info@modbox.com | — | GC, remodel, ADU | Honolulu · Honolulu County | — | — |
| Modern Flooring LLC | Modern Flooring LLC | kamil@modern-flooring.com | — | GC, remodel, ADU | Honolulu · Honolulu County | — | — |
| Modern Renovations Hawaii LLC | Modern Renovations Hawaii LLC | bryce808renovate@gmail.com | (808) 489-0843 | GC, remodel, ADU | Honolulu · Honolulu County | — | — |
| Modtech Solutions LLC | Modtech Solutions LLC | info@modtechsolutions.com | (808) 204-2384 | Alarm and generators | Aiea · Honolulu County | — | — |
| Mollerup Glass Company | Mollerup Glass Company | quality@mollerupglass.com | (801) 397-1177 | Windows, patio, painters | Honolulu · Honolulu County | — | — |
| Moss & Associates LLC | Moss & Associates LLC | contact@mossassociates.com | (905) 655-0119 | GC, remodel, ADU | Honolulu · Honolulu County | — | — |
| Mrc Roofing LLC | Mrc Roofing LLC | — | (808) 842-4464 | Other roofers | Honolulu · Honolulu County | — | — |
| Murakami Roofing LLC | Murakami Roofing LLC | info@murakami.local | (808) 348-8270 | Other roofers | Kaneohe · Honolulu County | — | — |
| Nan INC | Nan INC | — | (808) 842-4929 | GC, remodel, ADU | Honolulu · Honolulu County | — | — |
| Natural Salt Pools LLC | Natural Salt Pools LLC | nspcurtis@gmail.com | (808) 255-7665 | Pool | Kailua · Honolulu County | — | — |
| Neal Fineman Property Management | Neal Fineman Property Management | — | (808) 353-4732 | Property managers | Honolulu · Honolulu County | — | — |
| Nelson Build & Repair LLC | Nelson Build & Repair LLC | — | (808) 397-3013 | GC, remodel, ADU | Honolulu · Honolulu County | — | — |
| Neng Win Builder Ltd | Neng Win Builder Ltd | — | (808) 382-7538 | GC, remodel, ADU | Honolulu · Honolulu County | — | — |
| Nilo Landscape Co | Nilo Landscape Co | — | (808) 848-5124 | Tree | Honolulu · Honolulu County | — | — |
| Noahs Painting LLC | Noahs Painting LLC | — | (508) 367-9535 | Windows, patio, painters | Aiea · Honolulu County | — | — |
| Nohonani Landscape LLC | Nohonani Landscape LLC | nohonanilandscape@live.com | (808) 635-4387 | Windows, patio, painters | Honolulu · Honolulu County | — | — |
| Noresco LLC | Noresco LLC | — | (508) 614-1000 | HVAC | Honolulu · Honolulu County | — | — |
| Northwest Exteriors INC | Northwest Exteriors INC | info@trustnorthwest.com | (916) 588-9017 | GC, remodel, ADU | Kapolei · Honolulu County | — | — |
| O'ahu Home Inspections | O'ahu Home Inspections | info@oahuinspections.com | (808) 425-9530 | Inspectors | Honolulu · Honolulu County | — | — |
| Oahu Electric And Air | Oahu Electric And Air | — | (808) 556-8283 | Electricians | Waipahu · Honolulu County | — | — |
| Oahu Garage Doors LLC | Oahu Garage Doors LLC | info@oahugaragedoors.com | (808) 625-5759 | Windows, patio, painters | Waipahu · Honolulu County | — | — |
| Oahu Metal & Glazing LLC | Oahu Metal & Glazing LLC | cgauthe@omglazing.com | (808) 591-1052 | Windows, patio, painters | Honolulu · Honolulu County | — | — |
| Oahu Pro Painters | Oahu Pro Painters | — | (808) 488-8338 | Windows, patio, painters | Aiea · Honolulu County | — | — |
| Oahu Roofing & Repairs Honolulu | Oahu Roofing & Repairs Honolulu | — | (808) 746-7377 | Other roofers | Honolulu · Honolulu County | — | — |
| Oasis Pools And Spa | Oasis Pools And Spa | oasispoolandspahawaii@gmail.com | (808) 850-5150 | Pool | Honolulu · Honolulu County | — | — |
| Oceanic Companies INC | Oceanic Companies INC | oci@oceaniccompanies.com | (808) 682-0662 | HVAC | Kapolei · Honolulu County | — | — |
| Oceanic Landscaping LLC | Oceanic Landscaping LLC | oceaniclandscaping@gmail.com | (808) 342-7347 | Windows, patio, painters | Honolulu · Honolulu County | — | — |