| Accuburn of Williamsport, Inc Milling, Laser, Bending, Welding, Assembly | Williamsport, IN | MillingLaserBendingWeldingAssembly | - |
| Wagler Competition Products LLC Waterjet, Grinding | Odon, IN | WaterjetGrinding | - |
| Walerko Tool & Engineering Milling, Turning, Casting · ISO 9001, AS9100 | Elkhart, IN | MillingTurningCasting | ISO 9001, AS9100 |
| Wirecut Technologies, Inc Milling, Turning, EDM, Grinding | Indianapolis, IN | MillingTurningEDMGrinding | - |
| Wolfe & Swickard Machine Co Milling, Turning · AS9100 | Indianapolis, IN | MillingTurning | AS9100 |
| Worldwide Structural Fabrication Laser | Newburgh, IN | Laser | - |
| Abrasive Waterjet of Indiana, LLC Laser, Waterjet, Bending, EDM · ISO 9001 | Noblesville, IN | LaserWaterjetBendingEDM | ISO 9001 |
| Evansville Sheet Metal Works Bending, Laser, Welding, Waterjet | Evansville, IN | BendingLaserWeldingWaterjet | - |
| Hammer MetalWerks Bending, Laser, Welding | Indianapolis, IN | BendingLaserWelding | - |
| IFT Worldwide Milling, Stamping, Finishing | South Bend, IN | MillingStampingFinishing | - |
| LG Metalworks LLC Milling, Turning, Laser, Waterjet, Welding, EDM, Finishing | Bloomington, IN | MillingTurningLaserWaterjetWeldingEDMFinishing | - |
| Melting Point Metalworks LLC Laser, Bending, Welding | Brownsburg, IN | LaserBendingWelding | - |
| Midwest Industrial Metal Fabrication Inc Milling, Turning, Punching, Bending, Welding, Stamping, Finishing | Huntington, IN | MillingTurningPunchingBendingWeldingStampingFinishing | - |
| Ottenweller Company, Inc. Bending, Laser, Welding · ISO 9001 | Fort Wayne, IN | BendingLaserWelding | ISO 9001 |
| Swiss Labs Machine and Engineering, Inc Milling, Turning, Swiss, Finishing · ISO 9001 | Franklin, IN | MillingTurningSwissFinishing | ISO 9001 |
| B & J Specialty Inc Milling, Welding, EDM | Wawaka, IN | MillingWeldingEDM | - |
| Touchdown Machining Inc Milling, Turning | Columbus, IN | MillingTurning | - |
| Applied Metals & Machine Works, Inc. Milling, Turning, Welding | Fort Wayne, IN | MillingTurningWelding | - |
| H & W Machine Repair & Rebuilding Milling, Turning, Welding | Fort Wayne, IN | MillingTurningWelding | - |
| Highway Machine Co Inc Milling, Welding, Grinding | Princeton, IN | MillingWeldingGrinding | - |
| Lear Machining & Waterjet Inc Milling, Turning, Waterjet, Welding, Grinding · ISO 9001 | Columbus, IN | MillingTurningWaterjetWeldingGrinding | ISO 9001 |
| Marion Manufacturing Milling, Turning, Welding, Stamping, EDM · AS9100 | West Terre Haute, IN | MillingTurningWeldingStampingEDM | AS9100 |
| Standard Locknut, LLC Milling, Turning | Westfield, IN | MillingTurning | - |
| Hammond Machine Works, Inc Laser, Welding, Grinding, Assembly | Hammond, IN | LaserWeldingGrindingAssembly | - |
| Hand Industries Inc Grinding · ISO 9001, AS9100 | Warsaw, IN | Grinding | ISO 9001, AS9100 |
| Precision Fabrication, Inc. Milling, Bending, Laser, Welding, Waterjet | Fort Wayne, IN | MillingBendingLaserWeldingWaterjet | - |
| Sunspot Solutions LLC Welding | Lyons, IN | Welding | - |
| Parametric Machining Incorporated Milling, Turning, EDM, Grinding · ISO 9001, ISO 13485 | Huntertown, IN | MillingTurningEDMGrinding | ISO 9001, ISO 13485 |
| Toolcraft LLC Milling | Fort Wayne, IN | Milling | - |
| A M Machine Co Inc Milling, Turning, Swiss, Grinding | Mooresville, IN | MillingTurningSwissGrinding | - |
| Allied Specialty Precision Inc Milling, Turning, Welding, EDM · ISO 9001, AS9100, NADCAP | Mishawaka, IN | MillingTurningWeldingEDM | ISO 9001, AS9100, NADCAP |
| Amg Engineering & Machining Milling, Turning, Bending, Welding, EDM · ISO 9001, AS9100, ITAR, IATF 16949 | Indianapolis, IN | MillingTurningBendingWeldingEDM | ISO 9001, AS9100, ITAR, IATF 16949 |
| Blackstar CNC LLC Milling, Laser, Bending, Welding, Finishing · ISO 9001 | Merrillville, IN | MillingLaserBendingWeldingFinishing | ISO 9001 |
| bo-mar Industries Bending, Welding, Waterjet | Indianapolis, IN | BendingWeldingWaterjet | - |
| Boyer Machine & Tool Co Inc Milling, Turning, Swiss, EDM · ITAR | Columbus, IN | MillingTurningSwissEDM | ITAR |
| Britt Tool Inc Milling, Turning, Waterjet | Brazil, IN | MillingTurningWaterjet | - |
| C & P Machine Welding | Fort Wayne, IN | Welding | - |
| CCT Enterprises, LLC Milling, Turning, Swiss, Stamping, EDM, Assembly · ISO 9001, AS9100, ITAR, IATF 16949, CMMC | Auburn, IN | MillingTurningSwissStampingEDMAssembly | ISO 9001, AS9100, ITAR, IATF 16949, CMMC |
| Checkered Past Machine Milling, Turning, Welding, Grinding · ISO 9001, CMMC | Brownsburg, IN | MillingTurningWeldingGrinding | ISO 9001, CMMC |
| Cimtech Inc Bending, Welding, Stamping | New Albany, IN | BendingWeldingStamping | - |
| Connecta Corp Milling, Turning, Swiss | Indianapolis, IN | MillingTurningSwiss | - |
| CP Industries Inc Milling, Welding, Casting | Granger, IN | MillingWeldingCasting | - |
| D & D Automation Inc Milling, Turning, Welding, EDM | Terre Haute, IN | MillingTurningWeldingEDM | - |
| Dual Machine Milling, Turning, Welding · ISO 9001, AS9100 | Indianapolis, IN | MillingTurningWelding | ISO 9001, AS9100 |
| Dynamic Metals LLC Milling, Laser, Bending, Welding, Stamping · AS9100, NADCAP | Elkhart, IN | MillingLaserBendingWeldingStamping | AS9100, NADCAP |
| Eagle Magnetic Co Inc Laser, Welding, Finishing · ISO 9001 | Indianapolis, IN | LaserWeldingFinishing | ISO 9001 |
| Echelbarger Precision Machining Milling, Swiss, Waterjet, Bending, Welding, EDM, Finishing · ISO 9001 | Kokomo, IN | MillingSwissWaterjetBendingWeldingEDMFinishing | ISO 9001 |
| Emi Quality Plating Service, LLC Welding, Finishing | Evansville, IN | WeldingFinishing | - |
| Estes Design & Manufacturing Inc Milling, Turning, Laser, Punching, Bending, Welding, Grinding · ISO 13485 | Indianapolis, IN | MillingTurningLaserPunchingBendingWeldingGrinding | ISO 13485 |
| Fastech Precision LLC Milling, Turning, Laser, Waterjet, Bending, Welding · ITAR, CMMC | Bedford, IN | MillingTurningLaserWaterjetBendingWelding | ITAR, CMMC |