| Business | Phone |
| Aitken Inc 49220 Airline Dr, Houston 77022 | (713) 682-3340 |
| American Steel Building Co Inc 12218 Robin Blvd, Houston 77045 | (713) 433-5661 |
| Metallic Building Co 7301 Fairview St, Houston 77041 | (713) 466-7788 |
| Metallic International 7313 Fairview St, Houston 77041 | (713) 856-1745 |
| Mbm Metal Buildings Inc 3239 Frick Rd, Houston 77086 | (281) 445-7816 |
| International Building Systems 7150 Almeda Genoa Rd, Houston 77075 | (713) 991-7900 |
| Jedco Building Systems Inc 1645 Hill Rd, Houston 77039 | (281) 591-2860 |
| National Buildings 5637 Lauder Rd, Houston 77039 | (281) 442-3800 |
| Nci Building Systems Inc 10943 N Sam Houston Pkwy W, Houston 77064 | (281) 897-7500 |
| United Structures Of America 1912 Buschong St, Houston 77039 | (281) 442-8247 |
| Whirlwind Building Systems Inc 8234 Hansen Rd, Houston 77075 | (713) 946-7140 |
| Protect Controls Inc 303 Little York Rd, Houston 77076 | (713) 691-5183 |