| Business | Phone |
| Jacobs Machine Co 120 National Dr, Rockwall 75032 | (972) 771-3805 |
| Nichol Tool 2010 Industrial Blvd 608, Rockwall 75087 | (972) 772-9634 |
| Pyramid Cos 915 Whitmore Dr, Rockwall 75087 | (972) 772-3378 |
| Pyramid Machine & Tool 4950 Grisham Dr, Rockwall 75087 | (972) 412-4661 |