| Business | Phone |
| Eis Inc 10700 Richmond Ave, Houston 77042 | (713) 781-3569 |
| Betsco 6727 Theall Rd, Houston 77066 | (281) 895-8189 |
| Carter's Sales & Svc 9805 Monroe Rd, Houston 77075 | (713) 991-0058 |
| Daniel Measurement & Control 11100 Brittmoore Park Dr, Houston 77041 | (713) 467-6000 |
| Eis Inc 16023 Brimfield Dr, Houston 77082 | (281) 558-2621 |
| Faure Herman Meter Inc 6961 Brookhollow West Dr, Houston 77040 | (713) 623-0808 |
| Fiesta Cellphone 8538 Hammerly Blvd, Houston 77055 | (713) 464-5454 |
| Flow-Tech Industries 4601 S Pinemont Dr 100, Houston 77041 | (713) 690-7474 |
| Fluid Meter Svc Corp 10321 Monroe Rd, Houston 77075 | (713) 991-5279 |
| H2o Meter Svc Co Houston 77060 | (281) 999-3035 |
| Linco-Electromatic Measurement 1674 W Sam Houston Pkwy N, Houston 77043 | (713) 464-1642 |
| Krohne America Inc 1778 N Sam Houston Pkwy W, Houston 77038 | (713) 464-5454 |