| Business | Phone |
| Gamboa Electric Svc Ware Seguin Rd, Schertz 78154 | (210) 674-4201 |
| Hannasch Electric Inc 24 Commercial Pl, Schertz 78154 | (210) 658-5351 |
| Houston Stafford Electric Inc 9900 Doerr Ln, Schertz 78154 | (210) 651-8294 |
| Lambrecht Electric Co 1400 Fm 1518, Schertz 78154 | (210) 566-8400 |