| 332313 — Plate Work Manufacturing | Not reported |
| 332410 — Power Boiler and Heat Exchanger Manufacturing | Not reported |
| 332510 — Hardware Manufacturing | Not reported |
| 332710 — Machine Shops | Not reported |
| 332721 — Precision Turned Product Manufacturing | Not reported |
| 332722 — Bolt, Nut, Screw, Rivet, and Washer Manufacturing | Not reported |
| 332811 — Metal Heat Treating | Not reported |
| 332911 — Industrial Valve Manufacturing | Not reported |
| 332919 — Other Metal Valve and Pipe Fitting Manufacturing | Not reported |
| 332994 — Small Arms, Ordnance, and Ordnance Accessories Manufacturing | Not reported |
| 332999 — All Other Miscellaneous Fabricated Metal Product Manufacturing | Not reported |
| 333514 — Special Die and Tool, Die Set, Jig, and Fixture Manufacturing | Not reported |
| 333613 — Mechanical Power Transmission Equipment Manufacturing | Not reported |
| 333923 — Overhead Traveling Crane, Hoist, and Monorail System Manufacturing | Not reported |
| 333996 — Fluid Power Pump and Motor Manufacturing | Not reported |
| 333998 — All Other Miscellaneous General Purpose Machinery Manufacturing | Not reported |
| 334111 — Electronic Computer Manufacturing | Not reported |
| 334419 — Other Electronic Component Manufacturing | Not reported |
| 334511 — Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing | Not reported |
| 336412 — Aircraft Engine and Engine Parts Manufacturing | Not reported |
| 336413 — Other Aircraft Parts and Auxiliary Equipment Manufacturing | Not reported |
| 336414 — Guided Missile and Space Vehicle Manufacturing | Not reported |
| 336415 — Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing | Not reported |
| 336419 — Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing | Not reported |
| 423510 — Metal Service Centers and Other Metal Merchant Wholesalers | Not reported |
| 541380 — Testing Laboratories and Services | Not reported |
| 541715 — Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) | Not reported |