| Eclipse Tinting Kauai | Eclipse Tinting Kauai | — | (808) 927-7044 | Windows, patio, painters | Hanapepe · Kauai County | — | — |
| Electratech Services | Electratech Services | — | (808) 482-0088 | Electricians | Kapaʻa · Kauai County | — | — |
| Electric Vehicle Charging Station | Electric Vehicle Charging Station | — | (808) 826-9497 | EV chargers | Princeville · Kauai County | — | — |
| Enzo's Roofing INC | Enzo's Roofing INC | — | (808) 634-5881 | Other roofers | Kapaʻa · Kauai County | — | — |
| Evpassport Charging Station | Evpassport Charging Station | — | (929) 297-1722 | EV chargers | Kapaʻa · Kauai County | — | — |
| Ez Electric LLC | Ez Electric LLC | info@ezelectric.com | (385) 284-0394 | Electricians | Kilauea · Kauai County | — | — |
| First Onsite Property Restoration | First Onsite Property Restoration | — | (800) 622-6433 | Restoration | Lihue · Kauai County | — | — |
| Fix It 911 - Handyman Extraordinaire | Fix It 911 - Handyman Extraordinaire | — | (808) 651-5581 | Electricians | Kapaʻa · Kauai County | — | — |
| Garden Island Properties | Garden Island Properties | — | (808) 822-4871 | Property managers | Kapaʻa · Kauai County | — | — |
| Garden Island Rentals | Garden Island Rentals | — | (800) 247-5599 | Property managers | Koloa · Kauai County | — | — |
| Garden Island Sheds | Garden Island Sheds | — | (808) 664-0687 | Windows, patio, painters | Kapaʻa · Kauai County | — | — |
| Garden Island Tree Care | Garden Island Tree Care | — | (808) 822-9620 | Tree | Kapaʻa · Kauai County | — | — |
| Garden Isle Roofing INC | Garden Isle Roofing INC | — | (808) 822-4597 | Other roofers | Kapaʻa · Kauai County | — | — |
| Greg's Roofing | Greg's Roofing | — | (808) 822-3398 | Other roofers | Kapaʻa · Kauai County | — | — |
| Hamco Glass & Glazing LLC | Hamco Glass & Glazing LLC | — | (808) 245-8793 | Windows, patio, painters | Lihue · Kauai County | — | — |
| Hanalei Electric LLC | Hanalei Electric LLC | brandon@hanaleielectric.com | — | Electricians | Kilauea · Kauai County | — | — |
| Hanalei House Painters | Hanalei House Painters | — | (949) 687-5496 | Windows, patio, painters | Kilauea · Kauai County | — | — |
| Happy Nest LLC | Happy Nest LLC | hello@happynest.com | (855) 335-9274 | GC, remodel, ADU | Kilauea · Kauai County | — | — |
| Hawaii's Correct Construction LLC | Hawaii's Correct Construction LLC | — | (808) 634-8815 | Other roofers | Kalaheo · Kauai County | — | — |
| Hawaiian Island Property LLC | Hawaiian Island Property LLC | — | (808) 651-6453 | Other roofers | Kapaʻa · Kauai County | — | — |
| Hawaiian Luxury Stone LLC | Hawaiian Luxury Stone LLC | info@hawaiianluxurystone.com | (808) 895-9937 | Other | Eleele · Kauai County | — | — |
| Helen Turner's Studio | Helen Turner's Studio | — | (808) 346-9357 | Windows, patio, painters | Waimea · Kauai County | — | — |
| Hi Hawaii Painting | Hi Hawaii Painting | — | (808) 897-1663 | Windows, patio, painters | Lihue · Kauai County | — | — |
| Hki Kauai INC | Hki Kauai INC | info@hkikauai.com | — | GC, remodel, ADU | Kilauea · Kauai County | — | — |
| Ho'omana Painting INC | Ho'omana Painting INC | — | (808) 635-8547 | Windows, patio, painters | Omao · Kauai County | — | — |
| Isaiah's Tree Service LLC | Isaiah's Tree Service LLC | info@isaiahstreeservice.com | (808) 631-6488 | Tree | Koloa · Kauai County | — | — |
| Island Comfort | Island Comfort | — | (808) 215-9087 | HVAC | Lihue · Kauai County | — | — |
| Island Custom Tile INC | Island Custom Tile INC | kauaitilework@gmail.com | (808) 343-2613 | Other | Kekaha · Kauai County | — | — |
| Island Glass Hawaii | Island Glass Hawaii | — | (808) 822-5224 | Windows, patio, painters | Lihue · Kauai County | — | — |
| Island Metals | Island Metals | — | (808) 246-6600 | Other roofers | Lihue · Kauai County | — | — |
| Island Pool & Spa Supply | Island Pool & Spa Supply | — | (808) 977-3199 | Pool | Lihue · Kauai County | — | — |
| Island Rentals & Real Estate | Island Rentals & Real Estate | — | (808) 822-1049 | Property managers | Lihue · Kauai County | — | — |
| Island Roots Tree Trimming Kauai | Island Roots Tree Trimming Kauai | — | (808) 855-5593 | Tree | Kilauea · Kauai County | — | — |
| It Kauai | It Kauai | — | (808) 246-4446 | Alarm and generators | Lihue · Kauai County | — | — |
| J Cesario Builders LLC | J Cesario Builders LLC | jcesariobuilders@charter.net | (231) 838-8774 | GC, remodel, ADU | Kalaheo · Kauai County | — | — |
| J&s Mechanical INC | J&s Mechanical INC | — | (801) 553-9922 | Pool | Kapaa · Kauai County | — | — |
| J.m. Pacific Construction LLC | J.m. Pacific Construction LLC | — | (808) 246-1500 | Pool | Kapaʻa · Kauai County | — | — |
| Josh Blount Construction LLC | Josh Blount Construction LLC | josh@joshblountconstruction.com | — | GC, remodel, ADU | Hanalei · Kauai County | — | — |
| Jp's Tree Trimming Llc. | Jp's Tree Trimming Llc. | — | (808) 634-2704 | Tree | Kilauea · Kauai County | — | — |
| Kaapana Landscaping LLC | Kaapana Landscaping LLC | kaapanakruise@gmail.com | (808) 780-5309 | Tree | Kapaʻa · Kauai County | — | — |