| Roots Development LLC | Roots Development LLC | rootsdevelopment@yahoo.com | — | GC, remodel, ADU | Kea'au · Hawaii County | — | — |
| Roy Lambrecht Woodworking INC | Roy Lambrecht Woodworking INC | — | (808) 326-9585 | GC, remodel, ADU | Kailua Kona · Hawaii County | — | — |
| Royal Builders INC | Royal Builders INC | — | (949) 679-5800 | GC, remodel, ADU | Pearl City · Honolulu County | — | — |
| Royal Pools Of Hawai‘i | Royal Pools Of Hawai‘i | — | (808) 987-6250 | Pool | Kailua-Kona · Hawaii County | — | — |
| Royal Realty | Royal Realty | — | (808) 294-6386 | Property managers | Kihei · Maui County | — | — |
| Rpapa Construction LLC | Rpapa Construction LLC | max@rpapaconstruction.com | (808) 369-8780 | GC, remodel, ADU | Honolulu · Honolulu County | — | — |
| Rtm Electric Corp | Rtm Electric Corp | — | (780) 886-6380 | Electricians | Honolulu · Honolulu County | — | — |
| Rutan Refrigeration | Rutan Refrigeration | — | (808) 245-8579 | HVAC | Lihue · Kauai County | — | — |
| S & A Industries INC | S & A Industries INC | info@saindustries.com | (678) 377-7042 | GC, remodel, ADU | Suwanee · Other County | — | — |
| S E Electrical Services INC | S E Electrical Services INC | — | (800) 745-4942 | Electricians | Waipahu · Honolulu County | — | — |
| Safe Homes Hawaii - Home Inspections | Safe Homes Hawaii - Home Inspections | — | (808) 518-3181 | Inspectors | Honolulu · Honolulu County | — | — |
| Safety Inspection Services Maui | Safety Inspection Services Maui | — | (808) 866-3378 | Inspectors | Kahului · Maui County | — | — |
| Sagewater LLC | Sagewater LLC | info@sagewater.com | (888) 584-9990 | GC, remodel, ADU | Honolulu · Honolulu County | — | — |
| San Juan Fiberglass Pools-Spas | San Juan Fiberglass Pools-Spas | — | (808) 325-7088 | Pool | Kailua-Kona · Hawaii County | — | — |
| Sandwich Isle Pest Solutions | Sandwich Isle Pest Solutions | — | (808) 456-7716 | Pest, tile roofs | Pearl City · Honolulu County | — | — |
| Savant Construction INC | Savant Construction INC | info@savantconstruction.com | — | GC, remodel, ADU | Other County | — | — |
| Saviano Company INC | Saviano Company INC | — | (650) 948-3274 | GC, remodel, ADU | Honolulu · Honolulu County | — | — |
| Sb Construction Group INC | Sb Construction Group INC | — | (805) 284-2420 | GC, remodel, ADU | Honolulu · Honolulu County | — | — |
| Schaper Construction INC | Schaper Construction INC | info@indiantypefoundry.com | (813) 782-0920 | Windows, patio, painters | Other County | — | — |
| Schilling Construction Inc. | Schilling Construction Inc. | — | (808) 885-5044 | GC, remodel, ADU | Waimea · Hawaii County | — | — |
| Scope Electric INC | Scope Electric INC | office@scope-electric.com | — | Electricians | Honolulu · Honolulu County | — | — |
| Scott's Cooling Unlimited | Scott's Cooling Unlimited | — | (808) 877-2665 | HVAC | Kahului · Maui County | — | — |
| Screen Products INC | Screen Products INC | helpdesk@vdx.nl | — | Windows, patio, painters | Kapolei · Honolulu County | — | — |
| Screens & Things | Screens & Things | — | (808) 748-3760 | Windows, patio, painters | Honolulu · Honolulu County | — | — |
| Screens By Howie - Mobile Window And Door Screen Repair & Build | Screens By Howie - Mobile Window And Door Screen Repair & Build | info@screensbyhowie.com | (808) 276-8507 | Windows, patio, painters | Kihei · Maui County | — | — |
| Sea Engineering INC | Sea Engineering INC | admin@seaengineering.com | (808) 536-3603 | GC, remodel, ADU | Honolulu · Honolulu County | — | — |
| Sears Appliance Repair | Sears Appliance Repair | — | (808) 501-1777 | HVAC | Lihue · Kauai County | — | — |
| Securitas Security Services Usa | Securitas Security Services Usa | — | (808) 244-7579 | Alarm and generators | Wailuku · Maui County | — | — |
| Securitas Security Services Usa | Securitas Security Services Usa | — | (808) 329-7330 | Alarm and generators | Kailua-Kona · Hawaii County | — | — |
| Securitas Security Services Usa Harbor Mall | Securitas Security Services Usa Harbor Mall | — | (808) 245-6270 | Alarm and generators | Lihue · Kauai County | — | — |
| Security Alarm Shop INC | Security Alarm Shop INC | — | (808) 523-0121 | Alarm and generators | Honolulu · Honolulu County | — | — |
| Security Cameras Oahu | Security Cameras Oahu | — | (808) 392-6592 | Alarm and generators | Waipahu · Honolulu County | — | — |
| Security One | Security One | — | (808) 521-0092 | Alarm and generators | Honolulu · Honolulu County | — | — |
| Security Plumbing INC | Security Plumbing INC | — | (800) 368-3784 | Other | Honolulu · Honolulu County | — | — |
| Security Tech | Security Tech | — | (808) 874-0550 | Alarm and generators | Kihei · Maui County | — | — |
| Servpro Of Central Honolulu Kapolei | Servpro Of Central Honolulu Kapolei | — | (808) 909-8281 | Restoration | Honolulu · Honolulu County | — | — |
| Servpro Of Downtown Honolulu/team Maras | Servpro Of Downtown Honolulu/team Maras | — | (808) 900-7647 | Restoration | Honolulu · Honolulu County | — | — |
| Servpro Of East Honolulu | Servpro Of East Honolulu | — | (808) 395-9545 | Restoration | Honolulu · Honolulu County | — | — |
| Servpro Of Hawaii | Servpro Of Maui | Servpro Of Hawaii | Servpro Of Maui | — | (808) 900-7291 | Restoration | Kailua-Kona · Hawaii County | — | — |
| Servpro Of Kalihi Valley | Servpro Of Kalihi Valley | — | (808) 900-6911 | Restoration | Aiea · Honolulu County | — | — |