| Lima Sheet Metal Machine and Mfg., Inc Turning, Bending, Welding, Grinding | Lima, OH | TurningBendingWeldingGrinding | - |
| North Easton Machine Company, Inc Milling, Turning, Swiss · ISO 9001, ITAR, CMMC | North Easton, MA | MillingTurningSwiss | ISO 9001, ITAR, CMMC |
| North Country Engineering Inc Milling, Turning, Laser, Grinding · ISO 9001, AS9100, ITAR | Derby, VT | MillingTurningLaserGrinding | ISO 9001, AS9100, ITAR |
| 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 Lucus Machine Shop Turning, Punching, Welding | Lubbock, TX | TurningPunchingWelding | - |
| Northern Machining & Repair, Inc Milling, Turning, Welding | Escanaba, MI | MillingTurningWelding | - |
| 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 | - |
| Northeast Manufacturing Milling, Turning, Assembly · ISO 9001 | Stoneham, MA | MillingTurningAssembly | ISO 9001 |
| Northway Mathers Inc Milling, Turning, Waterjet, Bending, Welding, Finishing | Mukilteo, WA | MillingTurningWaterjetBendingWeldingFinishing | - |
| North Carolina Manufacturing Inc Milling, Turning, EDM, Grinding · ISO 9001, AS9100 | Goldsboro, NC | MillingTurningEDMGrinding | ISO 9001, AS9100 |
| Northwest Machining & Manufacturing Inc Milling, Turning, Welding, EDM · ISO 9001 | Meridian, ID | MillingTurningWeldingEDM | ISO 9001 |
| Aero Tech Manufactuting Inc Milling, Turning, Laser, Punching, Bending, Welding, Finishing, Assembly · ISO 9001 | North Salt Lake, UT | MillingTurningLaserPunchingBendingWeldingFinishingAssembly | ISO 9001 |
| Alpha Aviation Components, Inc Milling, Turning · ISO 9001, AS9100, ITAR | North Hills, CA | MillingTurning | ISO 9001, AS9100, ITAR |
| Churchmen's Machine Company Milling, Turning, Laser, Waterjet, Welding, Grinding, Finishing | North East, MD | MillingTurningLaserWaterjetWeldingGrindingFinishing | - |
| Custom Machine & Welding, Inc Turning, Waterjet, Bending, Welding, Grinding, Finishing | North Augusta, SC | TurningWaterjetBendingWeldingGrindingFinishing | - |
| Cutting Edge Machining & Automation-Qtr, LLC Milling, Turning, Swiss, Laser, Welding, EDM, Assembly | North Versailles, PA | MillingTurningSwissLaserWeldingEDMAssembly | - |
| Exotic Sport Products, Inc Milling, Turning, Swiss, Grinding | North Lima, OH | MillingTurningSwissGrinding | - |
| Gates Albert, Inc Milling, Turning · ISO 9001, AS9100, NADCAP, IATF 16949 | North Chili, NY | MillingTurning | ISO 9001, AS9100, NADCAP, IATF 16949 |
| Kennley Corp Milling, Turning, Grinding, Finishing | North Chesterfield, VA | MillingTurningGrindingFinishing | - |
| Louis C Morin Co Inc Milling, Turning, Swiss, Welding, Grinding, Finishing, Assembly | North Billerica, MA | MillingTurningSwissWeldingGrindingFinishingAssembly | - |
| Machineworks Manufacturing Milling, Turning, Laser, Bending, Welding, Finishing · ISO 9001, AS9100, ITAR | Northridge, CA | MillingTurningLaserBendingWeldingFinishing | ISO 9001, AS9100, ITAR |
| 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 |
| SRS Fabrication Inc. Milling, Turning, Bending, Welding, Waterjet | North Las Vegas, NV | MillingTurningBendingWeldingWaterjet | - |
| Stark Industrial, LLC Milling, Turning, Swiss, Welding, EDM, Grinding · ISO 9001 | North Canton, OH | MillingTurningSwissWeldingEDMGrinding | ISO 9001 |
| Strickland Machine Co LLC Milling, Turning, Welding, Stamping, Grinding, Finishing, Assembly | North Chesterfield, VA | MillingTurningWeldingStampingGrindingFinishingAssembly | - |
| Strom Manufacturing, LLC Milling, Turning, Finishing, Assembly · ISO 9001 | North Plains, OR | MillingTurningFinishingAssembly | ISO 9001 |
| Vision Aerospace LLC Milling, Turning, EDM · AS9100 | Northridge, CA | MillingTurningEDM | AS9100 |
| Machine Craft Northwest Inc Milling, Turning, Welding | Lebanon, OR | MillingTurningWelding | - |
| Pacific Northwest Metal Fabricators Turning, Welding, Waterjet | Seattle, WA | TurningWeldingWaterjet | - |
| Classic Machine & Engineering Milling, Turning, Laser, Welding, Grinding | Ashland, VA | MillingTurningLaserWeldingGrinding | - |
| 425 Manufacturing Milling, Turning, Welding, EDM · ISO 9001 | Rockford, IL | MillingTurningWeldingEDM | ISO 9001 |
| A & S Industrial LLC Turning, Laser, Bending, Welding | Chassell, MI | TurningLaserBendingWelding | - |
| Agi Corporation Milling, Turning, Welding, EDM, Finishing | Huntsville, AL | MillingTurningWeldingEDMFinishing | - |
| Aria Dynamics LLC Milling, Turning · ITAR | Far Hills, NJ | MillingTurning | ITAR |
| Baum Machine Inc Milling, Turning, Welding | Appleton, WI | MillingTurningWelding | - |
| Bircher Inc Milling, Turning, Bending, Welding | Morehead City, NC | MillingTurningBendingWelding | - |
| Copen Machine, Inc Milling, Turning, Swiss, Welding, Grinding · ISO 9001 | Kent, OH | MillingTurningSwissWeldingGrinding | ISO 9001 |
| Cox Machine LLC Milling, Turning, Welding, EDM, Grinding, Finishing · ISO 9001, ITAR | Traverse City, MI | MillingTurningWeldingEDMGrindingFinishing | ISO 9001, ITAR |
| Damco, Inc Milling, Turning, Waterjet, Welding | New Bern, NC | MillingTurningWaterjetWelding | - |
| Davis Industries Milling, Turning, Punching, Bending, Welding, Assembly · ISO 9001, AS9100 | Phoenix, AZ | MillingTurningPunchingBendingWeldingAssembly | ISO 9001, AS9100 |
| Davis Tool Inc Milling, Turning, Laser, Waterjet, Punching, Bending, Welding, EDM, Grinding, Finishing, Assembly · ISO 9001, AS9100, ITAR, NADCAP | Hillsboro, OR | MillingTurningLaserWaterjetPunchingBendingWeldingEDMGrindingFinishingAssembly | ISO 9001, AS9100, ITAR, NADCAP |
| Eagle Valley Industries, LLC Turning, Waterjet, Bending, Welding | Penn Valley, CA | TurningWaterjetBendingWelding | - |
| GB Fabrication Company Milling, Turning, Laser, Punching, Bending, Welding, Stamping, Grinding, Finishing, Assembly | Shiloh, OH | MillingTurningLaserPunchingBendingWeldingStampingGrindingFinishingAssembly | - |
| Genfor Precision Components Limited Milling, Turning, Swiss | Chanhassen, MN | MillingTurningSwiss | - |
| Highline Tool Inc Milling, Turning, Swiss, Grinding | Hillsboro, OR | MillingTurningSwissGrinding | - |
| J Mark Co Milling, Turning, Laser, Punching, Bending, Welding, Finishing, Assembly · ISO 9001, ITAR | Vista, CA | MillingTurningLaserPunchingBendingWeldingFinishingAssembly | ISO 9001, ITAR |
| Krisalis Precision Machining Milling, Turning | San Andreas, CA | MillingTurning | - |