| Sims Mechanical Solutions, Inc. | RALEIGH | — | — | 16 | Limited |
| Thermal Waves Mechanical LLC | Knightdale | — | — | 9 | Limited |
| Southern Air Mechanical LLC | Louisburg | — | — | 12 | Limited |
| Homeplace Heating & Air, Inc. | Cary | — | — | 12 | Limited |
| County Mechanical Corp., Inc. | Cary | — | — | 12 | Limited |
| Dail Mechanical, Inc. | Raleigh | — | — | 20 | Limited |
| J & M Heating and Air Condition Co., Inc. | Dunn | — | — | 14 | Limited |
| American HVAC Solutions, LLC | Wendell | — | — | 11 | Limited |
| BP Mechanical, Inc. | Wake Forest | — | — | 15 | Limited |
| Heating and Aaron, LLC | Youngsville | — | — | 12 | Limited |
| Triangle Refrigeration Services, Inc. | Raleigh | — | — | 12 | Limited |
| Jaguar Heating and Air (dba) | GARNER | — | — | 9 | Limited |
| Custom HVAC Services, Inc. | Raleigh | — | — | 17 | Limited |
| Badgett's Heating & Air | Kenly | — | — | 12 | Limited |
| Ransome's Heating & A/C | Pine Level | — | — | 11 | Limited |
| Salt & Light HVAC LLC | Zebulon | — | — | 14 | Limited |
| Air Care HVAC Services, L.L.C. | RALEIGH | — | — | 13 | Limited |
| Coria’s Heating and Air LLC | Erwin | — | — | 9 | Limited |
| Tradewinds Mechanical | Willow Spring | — | — | 9 | Limited |
| Air Care Heating & Cooling Service, LLC | Raleigh | — | — | 14 | Limited |
| NORTH POLE HVAC LLC | Holly Springs | — | — | 9 | Limited |
| Benson Comfort, LLC | Benson | — | — | 9 | Limited |
| JC's Heating & Air Conditioning Service, Inc. | Holly Springs | — | — | 11 | Limited |
| Carolina Air Conditioning Company, Inc. (dba) | Columbus | — | — | 8 | Limited |
| Air Flow Services Heating & Cooling LLC | Raleigh | — | — | 9 | Limited |
| Andy's Heating and AC of Raleigh, LLC | Youngsville | — | — | 10 | Limited |
| Southern Raleigh Heating and Cooling LLC | Raleigh | — | — | 8 | Limited |
| Griffin Heating & Air | Fuquay Varina | — | — | 11 | Limited |
| Air Rich Heating & Cooling Inc. | Cameron | — | — | 13 | Limited |
| Central Carolina Air Conditioning Company, LLC | GARNER | — | — | 17 | Limited |
| M.S.G. Heating & Air.LLC | RALEIGH | — | — | 12 | Limited |
| Air Pros HVAC Inc. | Smithfield | — | — | 8 | Limited |
| Cary Air Conditioning & Heating LLC | Apex | — | — | 10 | Limited |
| Able Heating & Air Conditioning | Spearfish | — | — | 11 | Limited |
| AmeriCool Refrigeration Services | Angier | — | — | 13 | Limited |
| Air Design Heating & Cooling | Garner | — | — | 10 | Limited |
| Harrod Heating & Air, LLC | Willow Spring | — | — | 12 | Limited |
| AMC Heating and Air LLC | Raleigh | — | — | 12 | Limited |
| Foreman's Heating & Air LLC | Willow Spring | — | — | 9 | Limited |
| Serenity Heating & Cooling, LLC | Raleigh | — | — | 10 | Limited |
| Aero Heating & Aire LLC | Clayton | — | — | 10 | Limited |
| Seacoast Heating and Air Conditioning LLC | Morrisville | — | — | 14 | Limited |
| MW Mechanical LLC | Clayton | — | — | 15 | Limited |
| Cape Fear Mechanical & General Contracting Inc. | Dunn | — | — | 12 | Limited |
| MAC Heating & Air L.L.C. | FUQUAY VARINA | — | — | 9 | Limited |
| ABL & Associates Plumbing, LLC | Raleigh | — | — | 19 | Limited |
| Prime Comfort Heating & Cooling | Selma | — | — | 12 | Limited |
| Teamwork Heating & Cooling | Kenly | — | — | 11 | Limited |
| Tri-Tech Mechanical, LLC | Louisburg | — | — | 9 | Limited |
| Christopher Hardin Heating and Air | Selma | — | — | 10 | Limited |
| Huckleberry Heating and Air | Raleigh | — | — | 8 | Limited |
| Duke's Heating & Air Conditioning | Raleigh | — | — | 11 | Limited |
| RG Heating & Cooling Services, LLC | Franklinton | — | — | 12 | Limited |
| Bracy HVAC, LLC | Fuquay-Varina | — | — | 9 | Limited |
| Super "B" Mechanical/General Contracting, Inc. | Youngsville | — | — | 10 | Limited |
| Air Conditioning and Heat by Matthews | Raleigh | — | — | 11 | Limited |
| Blue Ladder Heating & Cooling Inc. | Raleigh | — | — | 12 | Limited |
| High Value Heating & Air Conditioning Repair | Raleigh | — | — | 9 | Limited |
| J & S Heating & Air, LLC | Youngsville | — | — | 17 | Limited |
| Thermo Heating & Cooling LLC | RALEIGH | — | — | 10 | Limited |
| Stewart A/C Refrigeration Co. | Dunn | — | — | 11 | Limited |
| Ventura Heating and Air Conditioning, Inc. | Clayton | — | — | 8 | Limited |
| True Temp HVAC Solutions LLC | Apex | — | — | 8 | Limited |
| Water + Plumbing & Piping LLC | Apex | — | — | 12 | Limited |
| United Southern Heating & Air Conditioning LLC | Selma | — | — | 9 | Limited |
| Carolina Comfort Air, Inc. | CLAYTON | — | — | 16 | Limited |
| Archangel Air and Heat Co. | GARNER | — | — | 10 | Limited |
| Cool Heat HVAC Services, INC. | Clayton | — | — | 8 | Limited |
| Hollister Heating & Air LLC | Raleigh | — | — | 10 | Limited |
| B & J Heating & Air Service, Inc. | Angier | — | — | 11 | Limited |
| Partners Mechanical Inc. | Apex | — | — | 20 | Limited |
| Gallo Mechanical, L.L.C. | Raleigh | — | — | 19 | Limited |
| Interior Climate Contractors | Raleigh | — | — | 20 | Limited |
| Elevation Heating & Cooling, LLC | Angier | — | — | 12 | Limited |
| BlueRed HVAC LLC | Wake Forest | — | — | 9 | Limited |
| Iron Grip Heating & Air, LLC | Bunnlevel | — | — | 13 | Limited |
| Woodard HVAC Service Company | Kenly | — | — | 9 | Limited |
| Affordable Heating & Air | Clayton | — | — | 14 | Limited |
| Radford Legacy HVAC, LLC | Selma | — | — | 9 | Limited |
| Nextforge Mechanical LLC | Raleigh | — | — | 8 | Limited |
| Capital Comfort, LLC | Willow Spring | — | — | 11 | Limited |
| Hughey Mechanical Company | Raleigh | — | — | 8 | Limited |
| Tabourn Heating & Air Conditioning | Raleigh | — | — | 17 | Limited |
| Air Rite Heating & Air Conditioning, Inc | Raleigh | — | — | 11 | Limited |
| Casey Services HVAC, Inc. | Wake Forest | — | — | 20 | Limited |
| McKeithan Electrical & Mechanical Services | BUNN | — | — | 12 | Limited |
| 93 HVAC LLC | Raleigh | — | — | 8 | Limited |
| Surefire Heating & Air Conditioning, LLC | Clayton | — | — | 12 | Limited |
| USA HVAC LLC | Concord | — | — | 13 | Limited |
| Climate Control Heating & Air LLC | Raleigh | — | — | 12 | Limited |
| Shepherd's Heating and Cooling LLC | Raleigh | — | — | 8 | Limited |
| North State HVAC Inc. | PINE LEVEL | — | — | 9 | Limited |
| Servimek Mechanical & Electrical Contractors Inc. | Apex | — | — | 9 | Limited |
| All Weather Heating and Air | Zebulon | — | — | 14 | Limited |
| R & S Mechanical LLC | Garner | — | — | 13 | Limited |
| Peak Solutions Heating & Plumbing LLC | Raleigh | — | — | 12 | Limited |
| Duo Dragon HVAC LLC | Raleigh | — | — | 8 | Limited |
| Holm Heating and Cooling (dba) | Louisburg | — | — | 8 | Limited |
| T.E.A.M. Air Conditioning Company LLC | RALEIGH | — | — | 13 | Limited |
| NorthCo Mechanical Corp. | Raleigh | — | — | 12 | Limited |
| McBride Heating & Air Conditioning (dba) | Erwin | — | — | 13 | Limited |
| Service Experts Heating & Air Conditioning, LLC | Clayton | — | — | 18 | Limited |
| The Cool Guys Company | Wendell | — | — | 10 | Limited |
| Heating And Air Paramedics (dba) | Raleigh | — | — | 9 | Limited |
| M & M Mechanical Maintenance, LLC | Dunn | — | — | 14 | Limited |
| Apex Heating & Air Conditioning, LLC | Raleigh | — | — | 15 | Limited |
| Mechanical Service of Raleigh, Inc. | Fuquay Varina | — | — | 18 | Limited |
| Avila Heating + Cooling, LLC | Zebulon | — | — | 8 | Limited |
| Hale Heating and Cooling LLC | Selma | — | — | 9 | Limited |
| Cold South Mechanical, LLC | Willow Spring | — | — | 13 | Limited |
| Carroll Comfort Solutions | Angier | — | — | 8 | Limited |
| K.O. Heating and Air Conditioning, LLC | Holly Springs | — | — | 9 | Limited |
| Heat Wave of NC, Inc | Raleigh | — | — | 12 | Limited |
| C & G Comfort Cooling Inc. | Zebulon | — | — | 9 | Limited |
| Browns Heating & Air | Forest | — | — | 11 | Limited |
| Design Mechanical Contracting, Inc. | Willow Spring | — | — | 8 | Limited |
| Quarles Heating & Cooling, LLC | Louisburg | — | — | 13 | Limited |
| JH HVAC Solutions Inc. | Zebulon | — | — | 8 | Limited |
| Fast HVAC & Refrigeration, Inc. | Cary | — | — | 11 | Limited |
| Howe's HVAC Services, LLC | Wake Forest | — | — | 9 | Limited |
| Polar Bear Heating and Air, Inc. | Coats | — | — | 10 | Limited |
| Wake Heating & Air Inc. | Raleigh | — | — | 9 | Limited |
| Mechanical HVAC Services, Inc. | WAKE FOREST | — | — | 13 | Limited |
| Fagan Heating & Cooling | LOUISBURG | — | — | 14 | Limited |
| Carolina HVAC Solutions LLC | Four Oaks | — | — | 14 | Limited |
| Carolina HVAC & Plumbing, LLC | Raleigh | — | — | 18 | Limited |
| LKN Mechanical, Inc. | Raleigh | — | — | 17 | Limited |
| Triangle Comfort Heating & Cooling, Inc. | Raleigh | — | — | 10 | Limited |
| Alex Heating & Air Conditioning 4 Less | Apex | — | — | 10 | Limited |
| Hughes Heating and Air LLC | Raleigh | — | — | 8 | Limited |
| Raleigh Mechanical & Metals, Inc. | Raleigh | — | — | 14 | Limited |
| Intrepid Comfort Solutions, Inc. | Raleigh | — | — | 16 | Limited |
| Jones and Sons HVAC LLC | Smithfield | — | — | 10 | Limited |
| NC Cooling & Heat LLC | Raleigh | — | — | 9 | Limited |
| Whitley Heating & AC | Smithfield | — | — | 11 | Limited |
| Aloha Air HVAC Inc. | Raleigh | — | — | 15 | Limited |
| OneCall HVAC & Air Conditioning, LLC | Raleigh | — | — | 11 | Limited |
| Mechanical Refrigeration Service Inc. | Willow Spring | — | — | 12 | Limited |
| Raleigh Comfort Services LLC | Raleigh | — | — | 9 | Limited |
| LePage Heating & Air, Inc | FOUR OAKS | — | — | 10 | Limited |
| C. G. Mitchell Heating & Air Co. | Zebulon | — | — | 11 | Limited |
| Bardi-Davis Mechanical LLC | Garner | — | — | 11 | Limited |
| Comfort Bee H.V.A.C., L.L.C. | Youngsville | — | — | 15 | Limited |
| One Man Service Heating & Air Conditioning, LLC | FUQUAY VARINA | — | — | 9 | Limited |
| Saints Heating and Air, Inc. | Raleigh | — | — | 11 | Limited |
| CAM Refrigeration, LLC | Benson | — | — | 8 | Limited |
| Richardson Heating and Air-Conditioning, Inc. | Clayton | — | — | 15 | Limited |
| Raleigh Heating & Air, LLC | Raleigh | — | — | 9 | Limited |
| Mechanical Enterprises | Franklinton | — | — | 11 | Limited |
| A & M Heating & Air Conditioning, Inc. | Garner | — | — | 17 | Limited |
| McQueen's HVAC Services | Willow Springs | — | — | 11 | Limited |
| M&J Heating and Air Conditioning LLC | Raleigh | — | — | 9 | Limited |
| Comfort Solutions HVAC Incorporated | Clayton | — | — | 14 | Limited |
| RPS Mechanical Services, LLC | Holly Springs | — | — | 12 | Limited |
| Nolan Heating & Cooling, Inc. | Fuquay Varina | — | — | 10 | Limited |
| Raya HVAC, LLC | Middlesex | — | — | 8 | Limited |
| Betts Heating and Air Condtg. | Garner | — | — | 11 | Limited |
| Fogg HVAC Inc. | Fuquay Varina | — | — | 11 | Limited |
| StallTek Heating & Air, LLC | Raleigh | — | — | 11 | Limited |
| Chatham Mechanical Services | Apex | — | — | 18 | Limited |
| Better Day Heating and Cooling, LLC | Knightdale | — | — | 11 | Limited |
| Coolgreen Heating and Air, Inc | Fuquay Varina | — | — | 9 | Limited |
| Comfort Air Heating & Cooling LLC | Zebulon | — | — | 9 | Limited |
| Foursquare Heating & Cooling LLC | Fuquay Varina | — | — | 9 | Limited |
| Marsh Heating & Air, Inc. | Raleigh | — | — | 11 | Limited |
| Wall Brothers Heating & Cooling | KNIGHTDALE | — | — | 10 | Limited |
| Hess Heating & Air LLC | Raleigh | — | — | 8 | Limited |
| Deluxe Home Comfort & Co. | Garner | — | — | 11 | Limited |
| HVAC System Pro LLC | Raleigh | — | — | 11 | Limited |
| Alliance Comfort Services LLC | Raleigh | — | — | 12 | Limited |
| Pierce's A/C & Heating Service, Inc. | Dunn | — | — | 11 | Limited |
| Comfort Serv LLC | Apex | — | — | 10 | Limited |
| Thaxton Mechanical, Inc | Franklinton | — | — | 11 | Limited |
| Sunny Heating and Air Conditioning LLC | Raleigh | — | — | 9 | Limited |
| ACE Heating & Air Conditioning LLC | Kenly | — | — | 9 | Limited |
| Redmond Heating and Air | CARY | — | — | 10 | Limited |
| Q2 Mechanical LLC | HENDERSON | — | — | 9 | Limited |
| Ameri Air Mechanical Services, Inc. | Knightdale | — | — | 9 | Limited |
| Thermostat Masters Heating & Cooling (dba) | Clayton | — | — | 8 | Limited |
| Riverside HVAC NC, LLC | Fuquay Varina | — | — | 8 | Limited |
| Comfort Magic, Inc. | Selma | — | — | 13 | Limited |
| Complete Comfort Systems Inc. | Wake Forest | — | — | 13 | Limited |
| Quality Comfort Holdings, LLC | Garner | — | — | 8 | Limited |
| Solix Heating & Air LLC | Four Oaks | — | — | 8 | Limited |
| Innovative Heating & Air LLC | Wake Forest | — | — | 8 | Limited |
| Womack Heating and Cooling | Fuquay Varina | — | — | 11 | Limited |
| Y & D Heating and Air LLC | Garner | — | — | 9 | Limited |
| Mars Heating & Air | Clayton | — | — | 18 | Limited |
| Fast Air Conditioning LLC | Raleigh | — | — | 9 | Limited |
| Swift Brothers Plumbing, Heating & Air, LLC | Raleigh | — | — | 17 | Limited |
| Clayton Comfort Heating and Air Conditioning LLC | Clayton | — | — | 10 | Limited |
| J Roberson HVAC LLC | Wake Forest | — | — | 9 | Limited |
| Greenlight Cooling & Heating Inc. | Cary | — | — | 14 | Limited |
| Absolute Air Care Cooling & Htg | Creedmoor | — | — | 11 | Limited |
| Capital Empire Construction Group Mechanical, LLC | RALEIGH | — | — | 13 | Limited |
| Comfort Master, Inc. | Middlesex | — | — | 14 | Limited |
| SPC Mechanical Corporation | Wendell | — | — | 20 | Limited |
| Climate Express LLC | RALEIGH | — | — | 12 | Limited |
| Hot & Cold Mechanical Inc. | Angier | — | — | 10 | Limited |
| Wayne Bryant Heating & Cooling LLC | Selma | — | — | 10 | Limited |
| Romanoff Heating & Cooling, Charlotte, LLC (dba) | Columbus | — | — | 10 | Limited |
| Warren Heating and Cooling, Inc. | Erwin | — | — | 18 | Limited |
| My HVAC Guys LLC | Wendell | — | — | 9 | Limited |
| B & S Air Conditioning Co., Inc. | Benson | — | — | 15 | Limited |
| Mel's Mechanical | Louisburg | — | — | 15 | Limited |
| HQS Heating & Air | Fuquay Varina | — | — | 9 | Limited |
| Carolina Precision Cooling, LLC | Clayton | — | — | 12 | Limited |
| RTP Heating & Cooling | CARY | — | — | 9 | Limited |
| Wall Mechanical Contractors, Inc. | Garner | — | — | 11 | Limited |
| Shawn Rich Mechanical | Cary | — | — | 11 | Limited |
| Blanton's HVAC Service Co. | Hampstead | — | — | 10 | Limited |
| Hockaday Mechanical Corporation | Garner | — | — | 20 | Limited |
| Revive Heating & Cooling Inc. | Wake Forest | — | — | 12 | Limited |
| Choice Heating & Air Conditioning, Inc. | Wake Forest | — | — | 10 | Limited |
| MCM Heating & Air | Louisburg | — | — | 8 | Limited |
| AIRPRO Heat & Cooling Services LLC | Garner | — | — | 8 | Limited |
| Better Air Heating and AC LLC | Four Oaks | — | — | 12 | Limited |
| Carolina Comfort Air Inc. | Clayton | — | — | 16 | Limited |
| Weatherproof Heating and Cooling, Inc. | Selma | — | — | 10 | Limited |
| CAI Comfort Air, Inc. | Wendell | — | — | 10 | Limited |
| Magic HVAC LLC | Apex | — | — | 8 | Limited |
| Green Planet Heating and Air Conditioning Inc. | Raleigh | — | — | 11 | Limited |
| Wesley's HVAC LLC | Fuquay Varina | — | — | 14 | Limited |
| Clear Comfort Plumbing, Heating & Air Conditioning LLC | Holly Springs | — | — | 12 | Limited |
| Angeles HVAC LLC | Louisburg | — | — | 8 | Limited |
| Clary-Wellman Mechanical LLC | Raleigh | — | — | 11 | Limited |