| Blackwater Industries Professional Limited Liability Company Welding | Toledo, WA | Welding | - |
| Brooks Industrial, LLC Milling, Grinding, Finishing | North Attleboro, MA | MillingGrindingFinishing | - |
| North Easton Machine Company, Inc Milling, Turning, Swiss · ISO 9001, ITAR, CMMC | North Easton, MA | MillingTurningSwiss | ISO 9001, ITAR, CMMC |
| Blackhawk Machine Products Inc Milling, Turning | Smithfield, RI | MillingTurning | - |
| Stark Industrial, LLC Milling, Turning, Swiss, Welding, EDM, Grinding · ISO 9001 | North Canton, OH | MillingTurningSwissWeldingEDMGrinding | ISO 9001 |
| Northern Lucus Machine Shop Turning, Punching, Welding | Lubbock, TX | TurningPunchingWelding | - |
| Laciny Brothers., Inc. Bending, Welding, Waterjet | St. Louis, MO | BendingWeldingWaterjet | - |
| North East Precision CNC Milling, Turning · ISO 9001, ITAR | Dover, NH | MillingTurning | ISO 9001, ITAR |
| Northeast Tool and Mfg. Co Milling, Turning, EDM · ISO 9001, AS9100, ITAR, CMMC | Matthews, NC | MillingTurningEDM | ISO 9001, AS9100, ITAR, CMMC |
| Northern Machining & Repair, Inc Milling, Turning, Welding | Escanaba, MI | MillingTurningWelding | - |
| Northfield Manufacturing, Inc Welding, Casting | Westland, MI | WeldingCasting | - |
| Northway Mathers Inc Milling, Turning, Waterjet, Bending, Welding, Finishing | Mukilteo, WA | MillingTurningWaterjetBendingWeldingFinishing | - |
| Dunham Products, Inc Milling, Turning, Swiss, Grinding, Finishing · ISO 9001 | Walton Hills, OH | MillingTurningSwissGrindingFinishing | ISO 9001 |
| Duo Tec Tool Co Milling, Turning, Stamping, EDM, Grinding | Maple Grove, MN | MillingTurningStampingEDMGrinding | - |
| Dupage Machine Products, Inc Welding, EDM | Bloomingdale, IL | WeldingEDM | - |
| Dura Mold, Inc Casting · ISO 9001 | Stevensville, MI | Casting | ISO 9001 |
| Duval Precision Grinding Inc Grinding, Finishing | Chicopee, MA | GrindingFinishing | - |
| Exotic Sport Products, Inc Milling, Turning, Swiss, Grinding | North Lima, OH | MillingTurningSwissGrinding | - |
| Lacross Enterprises Inc Turning, Laser, Punching, Bending, Welding | Louisville, KY | TurningLaserPunchingBendingWelding | - |
| North Country Engineering Inc Milling, Turning, Laser, Grinding · ISO 9001, AS9100, ITAR | Derby, VT | MillingTurningLaserGrinding | ISO 9001, AS9100, ITAR |
| North Machine & Fabrication LLC Milling, Bending, Welding, Finishing | Chugiak, AK | MillingBendingWeldingFinishing | - |
| North Second Street Steel Laser, Welding | Minneapolis, MN | LaserWelding | - |
| Northern Machining, Inc Milling, Turning, Welding, Grinding · ISO 9001 | Norfolk, NY | MillingTurningWeldingGrinding | ISO 9001 |
| Northlake Steel Corp Turning, Forging, Grinding, Finishing | Valley City, OH | TurningForgingGrindingFinishing | - |
| Nu-Tool Industries Inc Milling, Turning, Punching, Bending, Stamping, Finishing · ISO 9001 | North Royalton, OH | MillingTurningPunchingBendingStampingFinishing | ISO 9001 |
| Panek Precision Products LLC Milling, Turning, Stamping, Grinding, Finishing, Assembly · ITAR | Northbrook, IL | MillingTurningStampingGrindingFinishingAssembly | ITAR |
| A & S Industrial LLC Turning, Laser, Bending, Welding | Chassell, MI | TurningLaserBendingWelding | - |
| Blackburn's Fabrication Milling, Turning, Bending, Laser, Welding | Columbus, OH | MillingTurningBendingLaserWelding | - |
| Blackhawk Engineering LLC Milling, Turning · ISO 9001, ITAR | Cedar Falls, IA | MillingTurning | ISO 9001, ITAR |
| Dual Machine Milling, Turning, Welding · ISO 9001, AS9100 | Indianapolis, IN | MillingTurningWelding | ISO 9001, AS9100 |
| Dualtron Manufacturing Milling, Laser, Punching, Welding, Finishing, Assembly | West Babylon, NY | MillingLaserPunchingWeldingFinishingAssembly | - |
| Dutchy Enterprises LLC Milling, Waterjet, Welding | Cocoa, FL | MillingWaterjetWelding | - |
| Fowler Industrial Plating, LLC Finishing, Assembly · ISO 9001, ITAR, NADCAP | Cleveland, TN | FinishingAssembly | ISO 9001, ITAR, NADCAP |
| Memac Industries Inc Milling, Turning, Welding, Grinding | Lancaster, OH | MillingTurningWeldingGrinding | - |
| Northeast Manufacturing Milling, Turning, Assembly · ISO 9001 | Stoneham, MA | MillingTurningAssembly | ISO 9001 |
| Northern Gear, LLC Casting, Finishing | Muskego, WI | CastingFinishing | - |
| Northwest Steel Fab, Inc Milling, Punching, Bending, Welding | Deer Park, WA | MillingPunchingBendingWelding | - |
| R C Industries Inc Finishing | Chicago, IL | Finishing | - |
| Retallack Technologies, LLC Milling, EDM | Hackettstown, NJ | MillingEDM | - |
| Structural Steel & Plate Fab Bending, Welding | North Salt Lake, UT | BendingWelding | - |
| Troy Industrial Milling | Ansonia, CT | Milling | - |
| 3DX Industries Inc Milling, Turning, Swiss, Metal AM, Finishing, Assembly | Ferndale, WA | MillingTurningSwissMetal AMFinishingAssembly | - |
| 5G Modular MT, LLC Welding | Laurel, MT | Welding | - |
| A & A Industries, Inc Milling, Turning, Welding · ISO 9001, AS9100 | Peabody, MA | MillingTurningWelding | ISO 9001, AS9100 |
| Accura Industries Inc Milling, Turning · ISO 9001 | Fairport, NY | MillingTurning | ISO 9001 |
| Accurate Metal Products Milling, Punching, Bending, Welding | Jurupa Valley, CA | MillingPunchingBendingWelding | - |
| Advantech Industries Inc Milling, Laser, Waterjet, Punching, Bending, Welding, Assembly · ISO 9001, ITAR | Rochester, NY | MillingLaserWaterjetPunchingBendingWeldingAssembly | ISO 9001, ITAR |
| Aeg Industries, Inc Milling, Turning, Bending, Grinding · ISO 9001, ITAR | Santa Rosa, CA | MillingTurningBendingGrinding | ISO 9001, ITAR |
| Algonquin Industries Inc Milling, Turning, Laser, Bending, Welding, Grinding, Assembly | Bellingham, MA | MillingTurningLaserBendingWeldingGrindingAssembly | - |
| Axis Product Development, Inc Milling · ITAR | Santa Ana, CA | Milling | ITAR |