| 1 Affordable Plumbing & Backflow LLC | PLB | 2025 | Active |
| A & B Propane Inc | GFC, PLB | 1991 | Active |
| Academy Enterprises Construction LLC | PLB | 2006 | Active |
| Acms LLC | PLB, GFC | 2009 | Active |
| Acta LLC | GFC, PLB | 2022 | Active |
| Affordable Luxuries LLC | PLB | 2004 | Active |
| Air Handlers Mechanical Services Inc | NGF, GFC | 1999 | Active |
| Ali - Cor Plumbing LLC | PLB, GFC | 2013 | Active |
| All Pro Fireplace LLC | GFC | 2025 | Active |
| Allied Contracting LLC | PLB, GFC | 2004 | Active |
| Ames Plumbing Company LLC | PLB, GFC | 2021 | Active |
| Applied Resource Technologies LLC | GFC | 2017 | Active |
| Associated Mechanical Companies Inc | GFC | 2005 | Active |
| Atlantech Mechanical Services LLC | GFC | 2013 | Active |
| Atlantic Coast Heating And Cooling Inc | GFC | 2009 | Active |
| Better Electric Inc | PLB, GFC | 2005 | Active |
| Blake Services Inc | GFC | 2009 | Active |
| Breey S Plumbing Service LLC | PLB | 2010 | Active |
| Bryant-Ritter Electric LLC | PLB | 2006 | Active |
| Bufford Mechanical LLC | PLB | 2025 | Active |
| Bumann Construction Inc | PLB | 1999 | Active |
| Byler Plumbing Inc. | PLB | 2012 | Active |
| Causeway Plumbing LLC | PLB | 2018 | Active |
| CCS Developers LLC | PLB | 2020 | Active |
| Chesapeake Custom Plumbing Inc | PLB | 2008 | Active |
| Choice Builders Of Virginia Inc | PLB, GFC | 2011 | Active |
| Coastal Breeze Heating And Cooling LLC | GFC, PLB | 2022 | Active |
| Comfort Systems Of Virginia Inc | PLB, GFC | 2006 | Active |
| Commercial Plumbing Inc | GFC, PLB | 2022 | Active |
| Community First Colonial Inc | PLB | 2003 | Active |
| Conner Mechancial Inc | PLB, GFC | 1999 | Active |
| Cornerstone Gen. Contractors Plumbing Heating & Mech Inc | GFC | 2005 | Active |
| Country Air Heating & Cooling Inc | GFC | 2001 | Active |
| Cpcar Inc | GFC | 2007 | Active |
| Craig Plumbing Co LTD | PLB, GFC | 2020 | Active |
| Crossroads Fuel Service Inc | GFC | 1996 | Active |
| CTC Services Of Va LLC | PLB, GFC | 2012 | Active |
| Cutting Edge Total Comfort Inc | GFC | 2007 | Active |
| Design Plumbing & Mechanical Inc | PLB, GFC | 2006 | Active |
| Dixie Plumbing LLC | PLB | 2023 | Active |
| Domestic Fuels & Lubes Inc | GFC | 1992 | Active |
| Dr. Plumber LLC | PLB | 2025 | Active |
| E. L. Sawyer Heating & Cooling Incorporated | GFC | 2012 | Active |
| East Coast Mechanical Inc | GFC | 2015 | Active |
| Edwards Heating & Cooling Inc | GFC | 1992 | Active |
| Excellence Services LLC | PLB, GFC | 2020 | Active |
| Expert Refrigeration Heating & Air LLC | GFC | 2009 | Active |
| Flomasters Plumbing And Drain LLC | PLB | 2026 | Active |
| Freedom Electric Inc | PLB, GFC | 2006 | Active |
| G & G Service & Contracting Inc | GFC | 1998 | Active |
| Garner Construction LLC | PLB, GFC | 2006 | Active |
| Get Lit Electrical LLC | GFC, PLB | 2019 | Active |
| Gregorys Heating & Cooling Inc | GFC | 2019 | Active |
| Hampton Roads Mechanical Of Virginia LLC | PLB, GFC | 2010 | Active |
| Harrisons Plumbing | GFC, PLB | 2023 | Active |
| Heller Enterprises Inc | GFC | 1996 | Active |
| His Service LLC | GFC | 2015 | Active |
| Hobbs Mechanical LLC | GFC | 2006 | Active |
| Home Repair Specialists LLC | PLB | 2020 | Active |
| HVAC Designs Inc | NGF | 2005 | Active |
| Hydrologix Inc | PLB | 1995 | Active |
| Integrity Plumbing And Cooling Inc | PLB, GFC | 2007 | Active |
| It S Electric Inc | PLB, GFC | 2002 | Active |
| Ivan S Heating & Cooling Inc | GFC | 2000 | Active |
| J & S Mechanical Inc | PLB, GFC, NGF | 2021 | Active |
| J&P Enterprize LLC | PLB, GFC | 2014 | Active |
| JMR Heating And Cooling Inc | GFC | 2012 | Active |
| Jr Plumbing & Mechanical Services LLC | PLB, GFC | 2021 | Active |
| JRC Mechanical LLC | GFC, PLB | 2016 | Active |
| JT Plumbing & Improvement Inc | PLB | 2003 | Active |
| Just In Time Plumbing And Gas LLC | GFC, PLB | 2023 | Active |
| Keith S Professional Services Inc | NGF | 2008 | Renew by Nov 30, 2026 |
| KPM Heating And Air Conditioning Incorporated | PLB, GFC | 2011 | Active |
| L G Merritt Inc | GFC | 2005 | Active |
| Lacey S Heating & Air Conditioning Inc | GFC | 2005 | Active |
| Luna Enterprise LLC | PLB | 2023 | Active |
| Maxwell Plumbing Inc | PLB | 2013 | Active |
| McCormick-Core Inc | PLB, GFC | 2003 | Active |
| Mechanical Source Solutions LLC | GFC, PLB | 2020 | Active |
| Mechtech Services Inc | PLB, GFC | 2003 | Active |
| On Time Plumbing Inc | PLB, GFC | 2009 | Active |
| One Stop Plumbing Co L.L.C. | PLB, GFC | 2013 | Active |
| Piedmont Service Group LLC | PLB, GFC | 2012 | Active |
| Pioneer Industries LLC | PLB, GFC | 2018 | Active |
| Porter Plumbing LLC | PLB | 2017 | Active |
| Premier Plumbing LLC | PLB, GFC | 1995 | Active |
| Price Right Plumbing & Drain Cleaning Inc | PLB, GFC | 2008 | Active |
| Prime Services LLC | GFC | 2013 | Active |
| Priority Mechanical LLC | GFC | 2025 | Active |
| Proficient Plumbing LLC | PLB | 2016 | Renew by Nov 30, 2026 |
| Quality Plumbing & Mechanical Inc | NGF, PLB | 2005 | Active |
| RBH Plumbing & Heating Company Inc | PLB, GFC | 1992 | Active |
| Refcon Services Inc | GFC | 2004 | Active |
| Richardson Plumbing Co Inc | PLB, GFC | 2003 | Active |
| Sac Plumbing And Construction LLC | PLB | 2024 | Active |
| Shanes Services Incorporated | GFC | 2010 | Active |
| Sheppard Quality Homes Inc | PLB, GFC | 2007 | Active |
| Skyline Plumbing Inc | PLB, GFC | 2007 | Active |
| Southside Energy LLC | GFC | 2023 | Active |
| Spruill S Plumbing LLC | PLB, GFC | 2011 | Active |