| FG Electric | EC | Active |
| FG Electrical Services | EC | Active |
| Field Service Specialists LLC | EC | Active |
| Fisk Electric Company | EC | Active |
| Flux Electrical | EC | Renew by Dec 19, 2026 |
| FM Solpro LLC | EC | Active |
| Forest Electric Contractors | EC | Active |
| FRC Electric Services LLC | EC | Active |
| FSB Electric LLC | EC | Active |
| Fuller Electric | EC | Active |
| Future Electric LLC | EC | Renew by Dec 16, 2026 |
| Fyi Electrical & Remodeling Services Inc | EC | Renew by Dec 28, 2026 |
| G-Maxx Electrical Service, LLC | EC | Active |
| G.A.D. Electric & Services | EC | Active |
| Galvan Electrical | EC | Active |
| Gam Electric LLC | EC | Active |
| Garay Electrical Services LLC | EC | Active |
| Gateway Electric And Engineering | EC | Active |
| Gauss Electric LLC | EC | Renew by Nov 23, 2026 |
| GC Quality Construction, LLC | EC | Renew by Dec 15, 2026 |
| Gce Sp, LLC | EC | Active |
| Gen RC LLC | EC | Active |
| General Electrical Contractors | EC | Active |
| Generator Industries LLC | EC | Active |
| Genrg Electrical Solutions LLC | EC | Active |
| Geo Force Group LLC | EC | Active |
| Gesi TX LLC | EC | Active |
| GG Electric Corp | EC | Active |
| Giffen Electric Co LC | EC | Active |
| Giles Electrical Services LLC | EC | Active |
| Glo-Mart Electric | EC | Active |
| Globalogix Inc | EC | Active |
| GNZ Electrical Services LLC | EC | Renew by Dec 8, 2026 |
| Gonzales Commercial Electric Inc | EC | Active |
| Gonzo Electric | EC | Active |
| Goodsmith Homecare & Repair, Inc | EC | Active |
| GPT Energy Inc | EC | Active |
| Gr8 Electrical Services | EC | Active |
| Gragg Electrical Licenses LLC | EC | Active |
| Granger Electric Co | EC | Renew by Nov 19, 2026 |
| Great Electric Inc | EC | Active |
| Greater Houston Electrical Services LLC | EC | Active |
| Green Electric | EC | Active |
| Green Energy RX LLC | EC | Renew by Nov 12, 2026 |
| Green Light Solar LLC | EC | Renew by Nov 11, 2026 |
| Greenlogic Lighting & Electric LLC | EC | Active |
| GS Electric LLC | EC | Renew by Dec 18, 2026 |
| Gulf Coast Fan & Light Inc | EC | Active |
| Guti Electric | EC | Active |
| Guti Electric LTD Co | EC | Active |
| H & E Electrical LLC | EC | Active |
| H & J Electric Company | EC | Active |
| H And Partners Electric LLC | EC | Active |
| H J Laredo Co, Inc | EC | Renew by Dec 29, 2026 |
| H Town Electric | EC | Renew by Dec 26, 2026 |
| H&R Electric Company LLC | EC | Active |
| Hamzo Electric, Inc | EC | Active |
| Hanwha Q Cells Epc USA LLC | EC | Active |
| Harbinger Electric Inc | EC | Active |
| Harmony Electric Co Inc | EC | Active |
| Harv's Electric, Inc | EC | Active |
| Harvest Electrical Solutions LLC | EC | Active |
| Harvest Solar Of Texas, LLC | EC | Active |
| Hawk Electrical Services Inc | EC | Active |
| Hays Electrical Services, Inc | EC | Active |
| HDZ Electric And Construction LLC | EC | Active |
| Helium Electric LLC | EC | Active |
| Henderson Telecom Services, Inc. | EC | Renew by Nov 10, 2026 |
| Henry Energy Services LLC | EC | Active |
| Henry Power Electric | EC | Active |
| Hernandez Energy Master Services LLC | EC | Active |
| Hi-Light Elctcrl Srvcs & Solutions LLC | EC | Active |
| High Output Electrical Services LLC | EC | Active |
| Highlander Electrical Services LLC | EC | Active |
| Highlights Of Houston, Inc | EC | Active |
| Hightower Electric Co, LTD | EC | Active |
| Hiservices, Inc | EC | Active |
| Holloman Corporation Of Texas | EC | Active |
| Hondumex Inc | EC | Renew by Dec 30, 2026 |
| House Of Power Electric LC | EC | Active |
| Houston E.N.G. Electrical Services | EC | Active |
| Houston Electric | EC | Active |
| Houston Electrical Services | EC | Active |
| Houston Empire Electric Co Inc | EC | Active |
| Houston Metro Electrical Corporation | EC | Active |
| Houston Power Electric LLC | EC | Active |
| Houtex Arc Electric LLC | EC | Active |
| Houtex Electric | EC | Active |
| HTX Industries LLC | EC | Active |
| Hubbard Electric Company, LLC | EC | Active |
| Hughes Systems Industrial Incorporated | EC | Renew by Dec 29, 2026 |
| HV Electrical Solutions, LLC | EC | Active |
| Hyundai Electrical Contractor LLC | EC | Active |
| Ibarra Construction Group LLC | EC | Active |
| Icon Electrical And Cabling Services LLC | EC | Active |
| Icot Electric LLC | EC | Active |
| Ics Energy Management Service LLC | EC | Active |
| Iecon Inc | EC | Active |
| Ilgen Electrical Services | EC | Active |
| Illuminations Lighting Design | EC | Renew by Dec 25, 2026 |