| Logic Electric | EC | Active |
| Lone Star Industrial Solutions Company | EC | Active |
| Lone Star Traffic & Fiber, LLC | EC | Active |
| Louis Electric Inc | EC | Active |
| Louis Wilson Electrical | EC | Active |
| LQ Electrical Services LLC | EC | Active |
| LR Electrical Contractor LLC | EC | Renew by Dec 29, 2026 |
| Lucas Power Solutions | EC | Renew by Dec 14, 2026 |
| Lucio Electrical Services | EC | Active |
| Lugo Electrical Field Design LLC | EC | Renew by Nov 14, 2026 |
| Lumens Electric LLC | EC | Renew by Dec 5, 2026 |
| Luminate Texas LLC | EC | Renew by Dec 27, 2026 |
| Lutz Electrical Contracting LP | EC | Renew by Dec 21, 2026 |
| Luxury Energy Solar LLC | EC | Active |
| LVN Electric LLC | EC | Active |
| Lynx Nova Energy LLC DBA Red Nova Energy | EC | Active |
| M & C Electric | EC | Active |
| M & D Electrical Contractor & Services | EC | Active |
| M&Cl Electrical LLC | EC | Active |
| M&M Electrical Contractors Of Texas Inc | EC | Active |
| M-Tech Electric, LLC | EC | Active |
| M.A. Electric | EC | Active |
| M3j Electrical Contractor LLC | EC | Active |
| Magallanes Electric Services | EC | Active |
| Main Souce Electrical | EC | Active |
| Marben Electric | EC | Active |
| Martinez Elec-Martinez Generatns Ele LLC | EC | Renew by Dec 3, 2026 |
| Martinez Power Electric | EC | Renew by Nov 18, 2026 |
| Marvinsons Electric | EC | Active |
| Masters Specialty Contractors LLC | EC | Active |
| Max Bolen Electric Inc | EC | Active |
| Mayfield Electric Co , Inc | EC | Active |
| MC Bright Electric Company | EC | Active |
| MC Electric | EC | Active |
| McCullough Electric | EC | Active |
| McCune Electrical Services LLC | EC | Active |
| McDermott, LLC | EC | Active |
| McNinch Electric LLC | EC | Active |
| McOd Group LLC | EC | Active |
| Mega King Electrical Corporation | EC | Active |
| Melton Electric Inc | EC | Renew by Dec 22, 2026 |
| Melvin Electric Inc | EC | Renew by Dec 15, 2026 |
| Memorial Electric LLC | EC | Active |
| Mercy Grace Partners LLC | EC | Active |
| Merit Electric Company | EC | Active |
| Merk Electric Co LLC | EC | Active |
| Method Wiring Inc | EC | Active |
| Mettle Electrical Company | EC | Active |
| MG Thundervolt Electrical Contrs LLC | EC | Active |
| Michalak Services Inc | EC | Renew by Nov 29, 2026 |
| Microgrid Energy, LLC | EC | Active |
| Mid-West Electric Co Inc | EC | Active |
| Midas Electric Services | EC | Active |
| Millan Group Inc | EC | Renew by Dec 28, 2026 |
| Miller Electrical Construction Inc | EC | Active |
| MJ Campbell Electric | EC | Active |
| MJ Chairez Electrical Services LLC | EC | Active |
| Mje Electric, LLC | EC | Active |
| MMT Enterprises LLC | EC | Active |
| Molina Electric | EC | Active |
| Monarch Electric LLC | EC | Active |
| Mr Champion Eletric LLC | EC | Renew by Nov 19, 2026 |
| Mri Services | EC | Active |
| Mt2 Electric | EC | Active |
| MTB Electric LTD | EC | Active |
| Muno Electric LLC | EC | Active |
| N & K Electric LLC | EC | Active |
| N Gil Electric Company Inc | EC | Active |
| National Led, LLC | EC | Active |
| Neighbors Electrical Services | EC | Active |
| Neil Technical Services, LLC | EC | Active |
| New Concepts Electric LLC | EC | Active |
| New Connection Electric | EC | Active |
| New Heights Electric | EC | Active |
| Newtex Electrical Contractors Inc | EC | Active |
| Next Door Electric | EC | Active |
| Nexx Electric & Lighting | EC | Active |
| Nguyen Construction Electrical Service | EC | Active |
| Niko Associate Electric | EC | Active |
| NNC Electrical Services LLC | EC | Active |
| Nof Electric LLC | EC | Active |
| Norris Electric | EC | Active |
| Nova Electrical Contractor | EC | Active |
| Novacore Power Inc | EC | Active |
| Novus Technical Services USA Inc | EC | Renew by Dec 7, 2026 |
| Nur Electrical Services, Inc | EC | Active |
| Nuvo Electrical Services | EC | Active |
| Nvent Thermal LLC | EC | Renew by Nov 8, 2026 |
| O T Electric LLC | EC | Active |
| Obo Electric LLC | EC | Active |
| Ogh Services, Inc. | EC | Active |
| Ohm's Law Electric & Air Conditioning | EC | Renew by Nov 28, 2026 |
| Ohms Corporation Of Houston | EC | Active |
| Oj's Electric LLC | EC | Active |
| Olmeca Electric LLC | EC | Active |
| Omega Electrical LLC | EC | Active |
| Omega Technical Services, LLC | EC | Active |
| Omg Electrical Contractor LLC | EC | Active |
| On Spot Property Solutions LLC | EC | Active |
| On Time Electric, Inc | EC | Active |