| Dailey's CNC Machining LLC Milling, EDM, Grinding · ISO 9001, AS9100, ITAR | Columbus, IN | MillingEDMGrinding | ISO 9001, AS9100, ITAR |
| Defelice Engineering, Inc Milling, Turning, Bending, Welding, Casting, Grinding | Mooresville, IN | MillingTurningBendingWeldingCastingGrinding | - |
| Euclid Machine Co Milling, Turning, EDM, Casting · AS9100, NADCAP | Indianapolis, IN | MillingTurningEDMCasting | AS9100, NADCAP |
| Evans Metal Products Co Bending, Welding | Elkhart, IN | BendingWelding | - |
| Evansville Tool & Die Inc Milling, Turning, Welding, Stamping, EDM, Grinding | Evansville, IN | MillingTurningWeldingStampingEDMGrinding | - |
| Flare Precision LLC Milling, Bending | Fort Wayne, IN | MillingBending | - |
| Flexible Concepts Inc Milling, Turning · ISO 9001 | Elkhart, IN | MillingTurning | ISO 9001 |
| General Devices Co Inc Laser, Punching, Stamping | Indianapolis, IN | LaserPunchingStamping | - |
| Hamblen Machine Inc Milling, Turning, EDM, Grinding | Bloomington, IN | MillingTurningEDMGrinding | - |
| Hiler Industries Milling, Turning, Casting, EDM · ISO 9001 | La Porte, IN | MillingTurningCastingEDM | ISO 9001 |
| Independence Machine & Tool LLC Milling, Turning, Grinding | Madison, IN | MillingTurningGrinding | - |
| Indy Cast Alloys, Inc Casting | Indianapolis, IN | Casting | - |
| Innovative 3D Manufacturing LLC Casting, Metal AM · ISO 9001, ITAR, ISO 13485 | Franklin, IN | CastingMetal AM | ISO 9001, ITAR, ISO 13485 |
| J P Corporation Milling, Turning · ISO 9001, AS9100 | Beech Grove, IN | MillingTurning | ISO 9001, AS9100 |
| JMS Machine, Inc Milling, Turning, EDM, Grinding | Columbia City, IN | MillingTurningEDMGrinding | - |
| K & K Inc Milling, Casting | Elkhart, IN | MillingCasting | - |
| Kent Machine Milling, EDM, Grinding | Indianapolis, IN | MillingEDMGrinding | - |
| Kimura Foundry America, Inc Casting, Metal AM | Shelbyville, IN | CastingMetal AM | - |
| Krukemeier Machine Milling, Turning, EDM · AS9100, NADCAP | Indianapolis, IN | MillingTurningEDM | AS9100, NADCAP |
| Lively Machine Milling, Turning, Bending, Finishing | Evansville, IN | MillingTurningBendingFinishing | - |
| Loughmiller Machine, Tool & Design Milling, Turning, Waterjet, Welding, EDM, Finishing | Loogootee, IN | MillingTurningWaterjetWeldingEDMFinishing | - |
| M.a. Metal Co., Inc Laser, Bending, Welding, Stamping, Assembly · ISO 9001 | Columbus, IN | LaserBendingWeldingStampingAssembly | ISO 9001 |
| Mercer Machine Company, Inc Milling, Turning, EDM · AS9100 | Camby, IN | MillingTurningEDM | AS9100 |
| MSP Maufacturing Milling, Turning, Bending, Welding, Finishing, Assembly | Bloomington, IN | MillingTurningBendingWeldingFinishingAssembly | - |
| Precise Manufacturing Inc Bending · ISO 9001 | Fort Wayne, IN | Bending | ISO 9001 |
| Progress Defense Corporation Assembly · ISO 9001 | Schererville, IN | Assembly | ISO 9001 |
| 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 |
| South Bend Form Tool Co Milling, Turning, EDM | South Bend, IN | MillingTurningEDM | - |
| Statt Engineering LLC Milling, Stamping · AS9100, ITAR | Martinsville, IN | MillingStamping | AS9100, ITAR |
| Stiverson Machine & Tool LLC Milling | Angola, IN | Milling | - |
| Summit City Precision Machining LLC Milling, Turning, EDM · ISO 9001 | Fort Wayne, IN | MillingTurningEDM | ISO 9001 |
| Triad Fabricators, LLC Milling, Turning, Bending | Evansville, IN | MillingTurningBending | - |