| Business | Phone |
| B F Machine Shop Inc 1603 N 5th St, Duncan 73533 | (580) 255-5899 |
| C & T Machine Old Highway 81 S & Terry Rdamp;, Duncan 73533 | (580) 252-5533 |
| Dad's Machine 702 Ridley Rd, Duncan 73533 | (580) 470-8334 |
| J & J Machine 505 S 6th St, Duncan 73533 | (580) 255-1160 |
| J D Machine Shop Rr 4, Duncan 73533 | (580) 252-5354 |
| Jefco Machine 700 S 2nd St, Duncan 73533 | (580) 252-9173 |
| Jones Machine 4815 W Fuller Rd, Duncan 73533 | (580) 255-5784 |
| Mammoth Manufacturing 1717 N 5th St, Duncan 73533 | (580) 252-4660 |
| Voight Manufacturing 209 E Main St, Duncan 73533 | (580) 470-9261 |
| Waller Machine 908 Ridley Rd, Duncan 73533 | (580) 255-7886 |
| Morgan Machine Duncan 73533 | (580) 470-8777 |
| Southern Machine Works 907 E Bois D Arc Ave, Duncan 73533 | (580) 255-6525 |
| Richard's Manufacturing 1202 Blue Chip Rd, Duncan 73533 | (580) 255-2395 |
| Richards Manufacturing 1209 La Doss, Duncan 73533 | (580) 252-1077 |
| Screw Machine Products Rr 5 Box 708, Duncan 73533 | (580) 252-3665 |
| Rochell Machine S Highway 81 & E Terry Rdamp;, Duncan 73533 | (580) 252-1424 |