| Business | Phone |
| Aeriform Corp 111 Highway 146 S, Houston 77039 | (281) 442-2300 |
| Aoc Acetylene Oxygen Co 11446 Hempstead Rd, Houston 77092 | (713) 681-1782 |
| Avesta Welding Products Inc 1234 N Post Oak Rd # 180, Houston 77055 | (713) 686-9353 |
| Delta Stud Weld 10612 Hempstead Rd, Houston 77092 | (713) 681-8110 |
| Devasco International Inc 9618 W Tidwell Rd, Houston 77041 | (713) 690-8977 |
| National Alloy & Equipment Inc 11425 W Little York Rd, Houston 77041 | (713) 466-3393 |
| National Gases 7999 Hansen Rd, Houston 77061 | (713) 378-6400 |