NAICS Code Drill-Down Tool Click on any Six Digit Code to see the Top Business Profiles within that Industry. NAICS Code Industry Title Business Count Collapse33451Navigational, Measuring, Electromedical, and Control Instruments Manufacturing18,699334510Electromedical and Electrotherapeutic Apparatus Manufacturing2,420334511Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing4,000334512Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use1,182334513Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables2,767334514Totalizing Fluid Meter and Counting Device Manufacturing358334515Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals1,821334516Analytical Laboratory Instrument Manufacturing2,492334517Irradiation Apparatus Manufacturing282334519Other Measuring and Controlling Device Manufacturing3,377 Two-Digit NAICS Sectors Code Sector Title Code Sector Title 11Agriculture, Forestry, Fishing and Hunting53Real Estate Rental and Leasing21Mining54Professional, Scientific, and Technical Services22Utilities55Management of Companies and Enterprises23Construction56Administrative and Support and Waste… Services31-33Manufacturing61Educational Services42Wholesale Trade62Health Care and Social Assistance44-45Retail Trade71Arts, Entertainment, and Recreation48-49Transportation and Warehousing72Accommodation and Food Services51Information81Other Services (except Public Administration)52Finance and Insurance92Public Administration Click Here for Data Appends & Targeted Marketing Lists