| Business | Phone |
| Agar Corp 5150 Tacoma Dr, Houston 77041 | (832) 476-5100 |
| Kennedy Gas Svc Po Box 841354, Houston 77284 | (281) 550-9995 |
| Ge Infrastructure Sensing 10311 Westpark Dr, Houston 77042 | (713) 975-0547 |
| Brammer Standard Co 14603 Benfer Rd, Houston 77069 | (281) 440-9396 |
| Carl Poe Co Inc 4600 Allen St, Houston 77007 | (713) 861-3816 |
| Macha International Inc 11246 S Post Oak Rd 322, Houston 77035 | (713) 723-5040 |
| Houston Aircraft Instruments 8433 Telephone Rd, Houston 77061 | (713) 645-9421 |