| Agile Engineering & Manufacturing LLC Milling, Turning, Welding, EDM, Grinding, Finishing | Indianapolis, IN | MillingTurningWeldingEDMGrindingFinishing | - |
| Blackstar CNC LLC Milling, Laser, Bending, Welding, Finishing · ISO 9001 | Merrillville, IN | MillingLaserBendingWeldingFinishing | ISO 9001 |
| C M Engineering Inc Milling, Laser, Bending, Welding, Finishing, Assembly · ISO 9001 | Dugger, IN | MillingLaserBendingWeldingFinishingAssembly | ISO 9001 |
| Dailey's CNC Machining LLC Milling, EDM, Grinding · ISO 9001, AS9100, ITAR | Columbus, IN | MillingEDMGrinding | ISO 9001, AS9100, ITAR |
| Dynamic Metals LLC Milling, Laser, Bending, Welding, Stamping · AS9100, NADCAP | Elkhart, IN | MillingLaserBendingWeldingStamping | AS9100, NADCAP |
| Evansville Tool & Die Inc Milling, Turning, Welding, Stamping, EDM, Grinding | Evansville, IN | MillingTurningWeldingStampingEDMGrinding | - |
| Lear Machining & Waterjet Inc Milling, Turning, Waterjet, Welding, Grinding · ISO 9001 | Columbus, IN | MillingTurningWaterjetWeldingGrinding | ISO 9001 |
| Major Tool & Machine Milling, Turning, Welding · ISO 9001, AS9100, NADCAP | Indianapolis, IN | MillingTurningWelding | ISO 9001, AS9100, NADCAP |
| Mesco Manufacturing Group LLC Milling, Laser, Welding, Finishing · ISO 9001 | Greensburg, IN | MillingLaserWeldingFinishing | ISO 9001 |
| Parametric Machining Incorporated Milling, Turning, EDM, Grinding · ISO 9001, ISO 13485 | Huntertown, IN | MillingTurningEDMGrinding | ISO 9001, ISO 13485 |
| Shape Shifters Inc Milling, Waterjet, Bending, Welding, Stamping, Finishing | Bloomfield, IN | MillingWaterjetBendingWeldingStampingFinishing | - |
| Stiverson Machine & Tool LLC Milling | Angola, IN | Milling | - |
| Subtract LLC Milling, Turning, Swiss, Laser, Waterjet, Welding, EDM, Finishing | Muncie, IN | MillingTurningSwissLaserWaterjetWeldingEDMFinishing | - |
| Superior Machine & Tool Milling, Turning, Welding · ISO 9001 | Fort Wayne, IN | MillingTurningWelding | ISO 9001 |
| Swiss Labs Machine and Engineering, Inc Milling, Turning, Swiss, Finishing · ISO 9001 | Franklin, IN | MillingTurningSwissFinishing | ISO 9001 |
| Toron Manufacturing Milling, Welding | Elkhart, IN | MillingWelding | - |
| Triangle Engineering Corp Milling, Turning, Grinding · ISO 9001, AS9100 | Indianapolis, IN | MillingTurningGrinding | ISO 9001, AS9100 |