| JWP Manufacturing Milling, Swiss, EDM | Santa Clara, CA | MillingSwissEDM | - |
| K & K Precision, Inc Milling, Turning, EDM, Grinding | Mason, OH | MillingTurningEDMGrinding | - |
| Kilgore Manufacturing Co Inc Milling, Swiss, Bending, Welding, EDM, Finishing, Assembly · ISO 9001, ITAR | Columbia City, IN | MillingSwissBendingWeldingEDMFinishingAssembly | ISO 9001, ITAR |
| Kriewall Enterprises Inc Milling, Laser, Welding, Stamping, EDM, Finishing · ISO 9001 | Romeo, MI | MillingLaserWeldingStampingEDMFinishing | ISO 9001 |
| Liberty Hill Company Milling, Turning, Swiss, Laser, Waterjet, Bending, EDM · ISO 9001, AS9100, ITAR | Huntington, WV | MillingTurningSwissLaserWaterjetBendingEDM | ISO 9001, AS9100, ITAR |
| Liberty Precision Company Milling, Turning, EDM, Grinding, Assembly · ISO 9001 | Houston, TX | MillingTurningEDMGrindingAssembly | ISO 9001 |
| Lodolce Machine Co, Inc Milling, Turning, Laser, Welding, EDM, Assembly · ISO 9001, AS9100 | Saugerties, NY | MillingTurningLaserWeldingEDMAssembly | ISO 9001, AS9100 |
| Lomar Machine & Tool Co Milling, Turning, Laser, Bending, Welding, Casting, EDM, Grinding, Finishing · ISO 9001 | Horton, MI | MillingTurningLaserBendingWeldingCastingEDMGrindingFinishing | ISO 9001 |
| M W M Services, Inc Milling, Welding, EDM | Riviera Beach, FL | MillingWeldingEDM | - |
| M-1 Tool Works, Inc Milling, Turning, EDM, Grinding, Finishing, Assembly · ISO 9001, AS9100 | Mchenry, IL | MillingTurningEDMGrindingFinishingAssembly | ISO 9001, AS9100 |
| Majestic Metals by Fathom Manufacturing Milling, Turning, Bending, Laser, Welding, Waterjet, EDM, Casting, Metal AM · ISO 9001, AS9100, ITAR, ISO 13485 | Denver, CO | MillingTurningBendingLaserWeldingWaterjetEDMCastingMetal AM | ISO 9001, AS9100, ITAR, ISO 13485 |
| Master Tool & Manufacturing Inc Turning, Bending, Welding, EDM, Grinding · ISO 9001, ITAR | Hiawatha, IA | TurningBendingWeldingEDMGrinding | ISO 9001, ITAR |
| Mathias Die Co Inc Milling, Laser, Waterjet, Stamping, EDM · ISO 9001, ITAR | South Saint Paul, MN | MillingLaserWaterjetStampingEDM | ISO 9001, ITAR |
| Merit Gage Inc Milling, Turning, EDM, Grinding · ISO 9001, AS9100 | Minneapolis, MN | MillingTurningEDMGrinding | ISO 9001, AS9100 |
| Metal Products Inc Milling, Turning, Waterjet, Bending, Welding, EDM, Grinding | Appleton, WI | MillingTurningWaterjetBendingWeldingEDMGrinding | - |
| Metri Tech Engineering Inc Milling, EDM, Assembly · ISO 9001, AS9100 | Huntington Beach, CA | MillingEDMAssembly | ISO 9001, AS9100 |
| Micro-Matics Inc Milling, Turning, Swiss, Casting, EDM, Grinding, Assembly | Fridley, MN | MillingTurningSwissCastingEDMGrindingAssembly | - |
| Micro-Tec, Inc Milling, Turning, Welding, EDM, Finishing · ISO 9001, AS9100 | Chatsworth, CA | MillingTurningWeldingEDMFinishing | ISO 9001, AS9100 |
| Midwest Machine & Tool, Inc Milling, Turning, Welding, EDM, Grinding, Finishing | Columbus, NE | MillingTurningWeldingEDMGrindingFinishing | - |
| Midwest Precision LLC Milling, Turning, Casting, EDM, Grinding, Assembly · ISO 9001, ITAR | Eastlake, OH | MillingTurningCastingEDMGrindingAssembly | ISO 9001, ITAR |
| Moultrie Tool & Manufacturing Co Inc Milling, Turning, Bending, Welding, EDM, Stamping · ISO 9001 | Memphis, TN | MillingTurningBendingWeldingEDMStamping | ISO 9001 |
| Mountain E D M EDM | Sisters, OR | EDM | - |
| MPM, Inc Milling, Welding, EDM | Wichita, KS | MillingWeldingEDM | - |
| Multisource Manufacturing LLC Milling, Turning, Swiss, EDM, Grinding, Finishing · ISO 9001, AS9100, ITAR, ISO 13485 | Minneapolis, MN | MillingTurningSwissEDMGrindingFinishing | ISO 9001, AS9100, ITAR, ISO 13485 |
| Oak Ridge Tool-Engineering Inc Milling, Turning, Welding, EDM, Grinding | Oak Ridge, TN | MillingTurningWeldingEDMGrinding | - |
| Olympic Tool Company Milling, Turning, Waterjet, Bending, Welding, EDM, Grinding, Finishing, Assembly | Bayville, NJ | MillingTurningWaterjetBendingWeldingEDMGrindingFinishingAssembly | - |
| Opti-Forms Inc Stamping, EDM, Finishing · ISO 9001, ITAR | Temecula, CA | StampingEDMFinishing | ISO 9001, ITAR |
| Palma Acquisition Inc Milling, Turning, EDM, Grinding · ISO 9001, AS9100, ITAR | Lancaster, NY | MillingTurningEDMGrinding | ISO 9001, AS9100, ITAR |
| Parametric Machining Incorporated Milling, Turning, EDM, Grinding · ISO 9001, ISO 13485 | Huntertown, IN | MillingTurningEDMGrinding | ISO 9001, ISO 13485 |
| Perfect Precision Machining Ltd Milling, Turning, Welding, EDM | Akron, OH | MillingTurningWeldingEDM | - |
| Perseo-Erie Machine Sales Milling, Laser, EDM, Stamping | Erie, PA | MillingLaserEDMStamping | - |
| Pmi2, Inc Milling, Turning, Metal AM, EDM, Grinding · ISO 9001, ITAR, CMMC | Seneca, SC | MillingTurningMetal AMEDMGrinding | ISO 9001, ITAR, CMMC |
| Powill Manufacturing & Engineering, Inc Milling, Turning, EDM, Grinding, Assembly · ISO 9001, AS9100, ITAR | Phoenix, AZ | MillingTurningEDMGrindingAssembly | ISO 9001, AS9100, ITAR |
| Preci-Manufacturing, Incorporated Milling, Turning, Forging, EDM, Grinding, Assembly · ISO 9001, AS9100 | Winooski, VT | MillingTurningForgingEDMGrindingAssembly | ISO 9001, AS9100 |
| Precision Machined Products, LLC Milling, Turning, EDM, Grinding, Assembly · ISO 9001 | Fort Collins, CO | MillingTurningEDMGrindingAssembly | ISO 9001 |
| Preferred Machine Works Inc Milling, Turning, EDM | Ball Ground, GA | MillingTurningEDM | - |
| Premier Manufacturing Group LLC Milling, Waterjet, EDM · ISO 9001 | Miamisburg, OH | MillingWaterjetEDM | ISO 9001 |
| Proto Edge, Inc Milling, Swiss, Casting, EDM, Assembly · ISO 9001 | Maple Grove, MN | MillingSwissCastingEDMAssembly | ISO 9001 |
| Proto Technologies Inc Milling, Turning, Waterjet, EDM · ISO 9001, AS9100, ITAR | Liberty Lake, WA | MillingTurningWaterjetEDM | ISO 9001, AS9100, ITAR |
| Prototype & Production Co., Inc Milling, Turning, EDM, Grinding, Assembly · ISO 9001, ITAR | Wheeling, IL | MillingTurningEDMGrindingAssembly | ISO 9001, ITAR |
| Qualitask Inc Milling, Turning, Swiss, Welding, EDM, Grinding, Finishing, Assembly · ISO 9001, AS9100 | Anaheim, CA | MillingTurningSwissWeldingEDMGrindingFinishingAssembly | ISO 9001, AS9100 |
| Quality Engineering Services Inc Milling, Turning, Welding, EDM, Grinding · ISO 9001, ITAR | Wallingford, CT | MillingTurningWeldingEDMGrinding | ISO 9001, ITAR |
| Quality Machining & Design Inc Milling, EDM · ISO 9001 | San Jose, CA | MillingEDM | ISO 9001 |
| Quality Machining Inc Milling, Turning, Welding, Stamping, EDM, Grinding, Finishing | Waunakee, WI | MillingTurningWeldingStampingEDMGrindingFinishing | - |
| Ram Aerospace Inc Milling, Turning, Laser, Waterjet, EDM, Grinding, Assembly · AS9100, ITAR | Brea, CA | MillingTurningLaserWaterjetEDMGrindingAssembly | AS9100, ITAR |
| Rapid Expedite Machine Service, LLC Milling, Waterjet, Welding, EDM · ISO 9001, AS9100, ITAR | Cocoa, FL | MillingWaterjetWeldingEDM | ISO 9001, AS9100, ITAR |
| Rapid Manufacturing Company, LLC Welding, Metal AM, EDM · ISO 9001, ITAR | Eau Claire, WI | WeldingMetal AMEDM | ISO 9001, ITAR |
| Reich Tool & Design Inc Milling, Turning, Swiss, Waterjet, Welding, Stamping, EDM, Finishing · ISO 9001, AS9100, ITAR, ISO 13485 | Menomonee Falls, WI | MillingTurningSwissWaterjetWeldingStampingEDMFinishing | ISO 9001, AS9100, ITAR, ISO 13485 |
| Republic EDM Services Inc Stamping, EDM · ISO 9001 | Dayton, OH | StampingEDM | ISO 9001 |
| Retallack Technologies, LLC Milling, EDM | Hackettstown, NJ | MillingEDM | - |