| Bowden Manufacturing Corp Milling, Turning, EDM · AS9100 | Willoughby, OH | MillingTurningEDM | AS9100 |
| Midwest Precision LLC Milling, Turning, Casting, EDM, Grinding, Assembly · ISO 9001, ITAR | Eastlake, OH | MillingTurningCastingEDMGrindingAssembly | ISO 9001, ITAR |
| Steelcrest Precision, Inc Milling, Turning, Swiss, Welding, EDM, Grinding, Assembly · ISO 9001, AS9100 | Wauseon, OH | MillingTurningSwissWeldingEDMGrindingAssembly | ISO 9001, AS9100 |
| Columbus Machine Works Milling, Turning, Bending, Welding, EDM, Casting | Columbus, OH | MillingTurningBendingWeldingEDMCasting | - |
| Rimeco Products Inc Milling, Turning, EDM · AS9100, ITAR, NADCAP | Willoughby, OH | MillingTurningEDM | AS9100, ITAR, NADCAP |
| Alpha Omega Machining Inc Milling, Turning, Welding, EDM, Finishing · ISO 9001 | Painesville, OH | MillingTurningWeldingEDMFinishing | ISO 9001 |
| B & G Tool Co Waterjet, Welding, Stamping, EDM · ISO 9001 | Columbus, OH | WaterjetWeldingStampingEDM | ISO 9001 |
| Bitec Milling, Turning, Swiss, Waterjet, EDM, Grinding | Dayton, OH | MillingTurningSwissWaterjetEDMGrinding | - |
| Budde Precision Machining Corp Milling, Turning, Welding, EDM, Grinding, Finishing, Assembly · ISO 9001, AS9100, ITAR, NADCAP, ISO 13485 | Dayton, OH | MillingTurningWeldingEDMGrindingFinishingAssembly | ISO 9001, AS9100, ITAR, NADCAP, ISO 13485 |
| DCP Tool Manufacturing, LLC Milling, Turning, Laser, Welding, EDM, Grinding, Finishing | Dayton, OH | MillingTurningLaserWeldingEDMGrindingFinishing | - |
| Delco LLC Milling, Turning, Welding, EDM, Grinding · ISO 9001, AS9100 | Akron, OH | MillingTurningWeldingEDMGrinding | ISO 9001, AS9100 |
| Die-Cut Products Co Bending, Laser, Welding, Waterjet, EDM, Stamping | Cleveland, OH | BendingLaserWeldingWaterjetEDMStamping | - |
| Die-Mension Corp Milling, Turning, Welding, Stamping, EDM, Grinding | Brunswick, OH | MillingTurningWeldingStampingEDMGrinding | - |
| Direct Tooling Concepts LLP Welding, Stamping, EDM, Grinding | Versailles, OH | WeldingStampingEDMGrinding | - |
| Enterprise Machine Inc. Milling, Turning, Welding, EDM | Cincinnati, OH | MillingTurningWeldingEDM | - |
| Fredon Corp Milling, Turning, Welding, EDM, Grinding · ISO 9001, AS9100, ITAR, NADCAP | Mentor, OH | MillingTurningWeldingEDMGrinding | ISO 9001, AS9100, ITAR, NADCAP |
| General Plug and Manufacturing Co Milling, Casting, EDM, Grinding, Finishing · ISO 9001 | Oberlin, OH | MillingCastingEDMGrindingFinishing | ISO 9001 |
| HR Machine Turning, Waterjet, EDM | Dayton, OH | TurningWaterjetEDM | - |
| Jerl Machine Inc Milling, Turning, Welding, Casting, EDM, Grinding, Assembly · ISO 9001 | Perrysburg, OH | MillingTurningWeldingCastingEDMGrindingAssembly | ISO 9001 |
| Paradigm Industrial Milling, Turning, Waterjet, Bending, Welding, EDM, Grinding, Assembly · ISO 9001, ITAR, CMMC | Dayton, OH | MillingTurningWaterjetBendingWeldingEDMGrindingAssembly | ISO 9001, ITAR, CMMC |
| Perfect Precision Machining Ltd Milling, Turning, Welding, EDM | Akron, OH | MillingTurningWeldingEDM | - |
| Premier Manufacturing Group LLC Milling, Waterjet, EDM · ISO 9001 | Miamisburg, OH | MillingWaterjetEDM | ISO 9001 |
| Princeton Tool Inc Milling, Waterjet, Casting, EDM, Grinding, Assembly · AS9100, NADCAP | Mentor, OH | MillingWaterjetCastingEDMGrindingAssembly | AS9100, NADCAP |
| SJK Machine LLC Milling, Turning, Waterjet, Welding, EDM, Finishing | Minerva, OH | MillingTurningWaterjetWeldingEDMFinishing | - |
| Stark Industrial, LLC Milling, Turning, Swiss, Welding, EDM, Grinding · ISO 9001 | North Canton, OH | MillingTurningSwissWeldingEDMGrinding | ISO 9001 |
| Sunset Industries Inc Milling, Turning, Swiss, Casting, EDM, Grinding, Finishing, Assembly · ISO 9001, AS9100, ITAR, CMMC | Mentor, OH | MillingTurningSwissCastingEDMGrindingFinishingAssembly | ISO 9001, AS9100, ITAR, CMMC |
| Tessec LLC Milling, Welding, EDM, Grinding, Assembly · AS9100 | Dayton, OH | MillingWeldingEDMGrindingAssembly | AS9100 |
| Tomak Precision Milling, Turning, Swiss, Welding, EDM, Grinding | Lebanon, OH | MillingTurningSwissWeldingEDMGrinding | - |
| Triangle Precision Industries Inc Milling, Swiss, Laser, Waterjet, Bending, EDM · ISO 9001, ITAR | Dayton, OH | MillingSwissLaserWaterjetBendingEDM | ISO 9001, ITAR |
| Troy Innovative Instruments, Inc Milling, Turning, Swiss, Laser, Welding, EDM, Grinding, Finishing, Assembly · ISO 9001, ITAR, ISO 13485 | Middlefield, OH | MillingTurningSwissLaserWeldingEDMGrindingFinishingAssembly | ISO 9001, ITAR, ISO 13485 |
| Trust Manufacturing LLC Milling, Turning, Waterjet, Bending, Forging, EDM, Grinding, Finishing | Euclid, OH | MillingTurningWaterjetBendingForgingEDMGrindingFinishing | - |
| VTD Systems Inc Milling, Turning, Swiss, Welding, EDM, Finishing · ISO 9001, ITAR | Elyria, OH | MillingTurningSwissWeldingEDMFinishing | ISO 9001, ITAR |
| X-Mil, Inc Milling, Turning, Waterjet, Bending, Welding, EDM, Grinding, Finishing · ISO 9001 | Mount Orab, OH | MillingTurningWaterjetBendingWeldingEDMGrindingFinishing | ISO 9001 |
| Ace Precision Industries Milling, Welding, EDM | Akron, OH | MillingWeldingEDM | - |
| Ashore Manufacturing Group LLC Milling, Turning, Stamping, EDM, Grinding · ISO 9001, AS9100, ITAR, CMMC | Berlin Center, OH | MillingTurningStampingEDMGrinding | ISO 9001, AS9100, ITAR, CMMC |
| Astro Manufacturing & Design Inc Milling, Turning, Laser, Waterjet, Welding, EDM, Finishing, Assembly · ISO 9001, NADCAP | Eastlake, OH | MillingTurningLaserWaterjetWeldingEDMFinishingAssembly | ISO 9001, NADCAP |
| Canyon Run Engineering Technologies Milling, Turning, EDM, Grinding, Assembly | Troy, OH | MillingTurningEDMGrindingAssembly | - |
| Habco Tool & Development Co Inc Milling, Turning, EDM, Grinding, Finishing · ISO 9001, AS9100, ITAR | Mentor, OH | MillingTurningEDMGrindingFinishing | ISO 9001, AS9100, ITAR |
| Jeb Modern Machines, Limited Turning, EDM | Republic, OH | TurningEDM | - |
| K & K Precision, Inc Milling, Turning, EDM, Grinding | Mason, OH | MillingTurningEDMGrinding | - |
| Keystone Machine & Fab, Inc Milling, Turning, EDM, Grinding | Grafton, OH | MillingTurningEDMGrinding | - |
| Maumee Pattern Co Milling, Turning, Casting, EDM · ITAR, CMMC | Toledo, OH | MillingTurningCastingEDM | ITAR, CMMC |
| Mountain Defense LLC Milling, Turning, EDM, Assembly | Mentor, OH | MillingTurningEDMAssembly | - |
| Republic EDM Services Inc Stamping, EDM · ISO 9001 | Dayton, OH | StampingEDM | ISO 9001 |
| Thaler Machine Co LLC Milling, Turning, Welding, EDM, Grinding · ISO 9001, AS9100 | Springboro, OH | MillingTurningWeldingEDMGrinding | ISO 9001, AS9100 |
| Total Manufacturing Milling, Turning, Waterjet, Welding, EDM, Grinding | Mentor, OH | MillingTurningWaterjetWeldingEDMGrinding | - |
| United Grinding & Machine Co Milling, Turning, Bending, Laser, Welding, Waterjet, EDM, Casting · ISO 9001 | Canton, OH | MillingTurningBendingLaserWeldingWaterjetEDMCasting | ISO 9001 |