| O&R Precision Milling, Turning, Swiss, Stamping, EDM, Grinding · ISO 9001 | Berne, IN | MillingTurningSwissStampingEDMGrinding | ISO 9001 |
| Olson Custom Designs LLC Milling, Turning, Bending, Welding · ISO 9001, ITAR, ISO 13485 | Indianapolis, IN | MillingTurningBendingWelding | ISO 9001, ITAR, ISO 13485 |
| Ottenweller Company, Inc. Bending, Laser, Welding · ISO 9001 | Fort Wayne, IN | BendingLaserWelding | ISO 9001 |
| Wagler Competition Products LLC Waterjet, Grinding | Odon, IN | WaterjetGrinding | - |
| Bertrand Products, Inc Milling, Turning, Grinding, Finishing · ISO 9001 | South Bend, IN | MillingTurningGrindingFinishing | ISO 9001 |
| 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 |
| Kilgore Manufacturing Co Inc Milling, Swiss, Bending, Welding, EDM, Finishing, Assembly · ISO 9001, ITAR | Columbia City, IN | MillingSwissBendingWeldingEDMFinishingAssembly | ISO 9001, ITAR |
| Mesco Manufacturing Group LLC Milling, Laser, Welding, Finishing · ISO 9001 | Greensburg, IN | MillingLaserWeldingFinishing | ISO 9001 |
| Modern Forge Indiana LLC Turning, Welding, Casting, Forging, Assembly · ISO 9001, AS9100, NADCAP | Merrillville, IN | TurningWeldingCastingForgingAssembly | ISO 9001, AS9100, NADCAP |
| Quick Turn Anodizing LLC Finishing · ISO 9001, AS9100, ITAR | Edinburgh, IN | Finishing | ISO 9001, AS9100, ITAR |
| Rhinehart Development Corp Laser, Punching, Bending, Welding, Stamping, Finishing · ISO 9001 | Spencerville, IN | LaserPunchingBendingWeldingStampingFinishing | ISO 9001 |
| Abrasive Waterjet of Indiana, LLC Laser, Waterjet, Bending, EDM · ISO 9001 | Noblesville, IN | LaserWaterjetBendingEDM | ISO 9001 |
| Alliance Tool & Precision Machining a Division of Murray Equipment Milling · ISO 9001 | Fort Wayne, IN | Milling | ISO 9001 |
| Allied Specialty Precision Inc Milling, Turning, Welding, EDM · ISO 9001, AS9100, NADCAP | Mishawaka, IN | MillingTurningWeldingEDM | ISO 9001, AS9100, NADCAP |
| Bci Solutions, Inc Milling, Casting, Grinding, Assembly · ISO 9001, IATF 16949 | Bremen, IN | MillingCastingGrindingAssembly | ISO 9001, IATF 16949 |
| Camtool, Inc Stamping · ISO 9001, AS9100 | Muncie, IN | Stamping | ISO 9001, AS9100 |
| Flexible Concepts Inc Milling, Turning · ISO 9001 | Elkhart, IN | MillingTurning | ISO 9001 |
| Innovative 3D Manufacturing LLC Casting, Metal AM · ISO 9001, ITAR, ISO 13485 | Franklin, IN | CastingMetal AM | ISO 9001, ITAR, ISO 13485 |
| J & N Metal Products, LLC Milling, Laser, Bending, Welding, EDM · ISO 9001 | Brazil, IN | MillingLaserBendingWeldingEDM | ISO 9001 |
| J B Tool Die & Engineering Co Inc Milling, Turning, Welding, Stamping, EDM, Grinding · ISO 9001 | Fort Wayne, IN | MillingTurningWeldingStampingEDMGrinding | ISO 9001 |
| J P Corporation Milling, Turning · ISO 9001, AS9100 | Beech Grove, IN | MillingTurning | ISO 9001, AS9100 |
| M.a. Metal Co., Inc Laser, Bending, Welding, Stamping, Assembly · ISO 9001 | Columbus, IN | LaserBendingWeldingStampingAssembly | ISO 9001 |
| Major Tool & Machine Milling, Turning, Welding · ISO 9001, AS9100, NADCAP | Indianapolis, IN | MillingTurningWelding | ISO 9001, AS9100, NADCAP |
| Parametric Machining Incorporated Milling, Turning, EDM, Grinding · ISO 9001, ISO 13485 | Huntertown, IN | MillingTurningEDMGrinding | ISO 9001, ISO 13485 |
| Progress Defense Corporation Assembly · ISO 9001 | Schererville, IN | Assembly | ISO 9001 |
| Summit City Precision Machining LLC Milling, Turning, EDM · ISO 9001 | Fort Wayne, IN | MillingTurningEDM | ISO 9001 |
| Superior Machine & Tool Milling, Turning, Welding · ISO 9001 | Fort Wayne, IN | MillingTurningWelding | ISO 9001 |
| The Progress Group, Inc Turning, Welding, Assembly · ISO 9001 | Schererville, IN | TurningWeldingAssembly | ISO 9001 |
| Triangle Engineering Corp Milling, Turning, Grinding · ISO 9001, AS9100 | Indianapolis, IN | MillingTurningGrinding | ISO 9001, AS9100 |
| Walerko Tool & Engineering Milling, Turning, Casting · ISO 9001, AS9100 | Elkhart, IN | MillingTurningCasting | ISO 9001, AS9100 |
| Advent Precision Inc Milling, EDM · ISO 9001 | Indianapolis, IN | MillingEDM | ISO 9001 |
| Armor Contract Manufacturing Inc Welding, Stamping, Finishing | Elkhart, IN | WeldingStampingFinishing | - |
| Bedford Machine & Tool Inc Milling, Turning, Welding, Casting, Finishing | Bedford, IN | MillingTurningWeldingCastingFinishing | - |
| Fathouse Fabrications Laser, Bending, Welding, Finishing | Martinsville, IN | LaserBendingWeldingFinishing | - |
| IFT Worldwide Milling, Stamping, Finishing | South Bend, IN | MillingStampingFinishing | - |
| LG Metalworks LLC Milling, Turning, Laser, Waterjet, Welding, EDM, Finishing | Bloomington, IN | MillingTurningLaserWaterjetWeldingEDMFinishing | - |
| Loughmiller Machine, Tool & Design Milling, Turning, Waterjet, Welding, EDM, Finishing | Loogootee, IN | MillingTurningWaterjetWeldingEDMFinishing | - |
| Midwest Industrial Metal Fabrication Inc Milling, Turning, Punching, Bending, Welding, Stamping, Finishing | Huntington, IN | MillingTurningPunchingBendingWeldingStampingFinishing | - |
| A M Machine Co Inc Milling, Turning, Swiss, Grinding | Mooresville, IN | MillingTurningSwissGrinding | - |
| Absolute Machining LLC Welding | Fort Wayne, IN | Welding | - |
| Accuburn of Williamsport, Inc Milling, Laser, Bending, Welding, Assembly | Williamsport, IN | MillingLaserBendingWeldingAssembly | - |
| Applied Metals & Machine Works, Inc. Milling, Turning, Welding | Fort Wayne, IN | MillingTurningWelding | - |
| Atlas Foundry Company Inc Casting, Grinding | Marion, IN | CastingGrinding | - |
| 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 M Engineering Inc Milling, Laser, Bending, Welding, Finishing, Assembly · ISO 9001 | Dugger, IN | MillingLaserBendingWeldingFinishingAssembly | ISO 9001 |
| CNC Industries, LLC Milling, Turning, Finishing, Assembly · ISO 9001, AS9100, ITAR | Fort Wayne, IN | MillingTurningFinishingAssembly | ISO 9001, AS9100, ITAR |