| Business | Phone |
| Center Line Machining Inc 903 N Beglis Pkwy, Sulphur 70663 | (337) 528-2190 |
| Howell Industries Inc 1650 Swisco Rd, Sulphur 70665 | (337) 625-8880 |
| Xcel Machining & Supply Inc 180 Production Dr, Sulphur 70663 | (337) 625-5588 |
| Production Products 170 Production Dr, Sulphur 70663 | (337) 625-2829 |