334418 – Printed Circuit Assembly (Electronic Assembly) Manufacturing

334419 – Other Electronic Component Manufacturing

334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing

334515 – Instrument Manufacturer for Measuring and Testing Electricity and Electrical Signals

334519 – Other Measuring and Controlling Device Manufacturing

335314 – Relay and Industrial Control Manufacturing

335931 – Current-Carrying Wiring Device Manufacturing

335932 – Noncurrent-Carrying Wiring Device Manufacturing

335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing

336412 – Aircraft Engine and Engine Parts Manufacturing

336414 – Guided Missile and Space Vehicle Manufacturing

336415 – Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing

336419 – Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing

532490 – Other Commercial and Industrial Machinery and Equipment Rental and Leasing

541330 – Engineering Services

541512 – Computer Systems Design Services

541620 – Environmental Consulting Services

541990 – All Other Professional, Scientific, and Technical Services