| Business | Phone |
| Curtis Sheet Metal 2519 National Dr A, Garland 75041 | (972) 278-1779 |
| Ddi Sales Corp 1639 Commerce St, Garland 75040 | (972) 485-2900 |
| Garland Sheet Metal 1913 Platinum St, Garland 75042 | (972) 276-9088 |
| International Training Inst 4022 Bucknell Dr, Garland 75042 | (972) 494-0248 |
| Murray Sheet Metal Inc 320 Range Dr, Garland 75040 | (972) 494-3843 |
| Three N One Sheet Metal Inc 2217 Pueblo Dr, Garland 75040 | (972) 675-0304 |