334515 Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals

Official definition

This U.S. industry comprises establishments primarily engaged in manufacturing instruments for measuring and testing the characteristics of electricity and electrical signals. Examples of products made by these establishments are circuit and continuity testers, voltmeters, ohm meters, wattmeters, multimeters, and semiconductor test equipment.

Source: US Census Bureau, 2022 NAICS descriptions.

When to use a different code

Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:

• Establishments primarily engaged in manufacturing electronic monitoring, evaluating, and other electronic support equipment for navigational, radar, and sonar systems are classified in U.S. Industry 334511, Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing.

Source: US Census Bureau, 2022 NAICS cross-references.

Activities listed under 334515

The Census index assigns these 87 activities to this code. If your business matches one, this is your code.

• Alternator and generator testers manufacturing
• Ampere-hour meters manufacturing
• Analyzers for testing electrical characteristics manufacturing
• Audiofrequency oscillators manufacturing
• Audiometers (except medical) manufacturing
• Automotive ammeters and voltmeters manufacturing
• Automotive electrical engine diagnostic equipment manufacturing
• Battery testers, electrical, manufacturing
• Bridges, electrical (e.g., Kelvin, megohm, vacuum tube, Wheatstone), manufacturing
• Circuit testers manufacturing
• Communications signal testing and evaluation equipment manufacturing
• Current measuring equipment manufacturing
• Decade boxes (i.e., capacitance, inductance, resistance) manufacturing
• Demand meters, electric, manufacturing
• Digital panel meters, electricity measuring, manufacturing
• Digital test equipment (e.g., electronic and electrical circuits and equipment testing) manufacturing
• Diode and transistor testers manufacturing
• Distortion meters and analyzers manufacturing
• Elapsed time meters, electronic, manufacturing
• Electrical network analyzers manufacturing
• Electrical power measuring equipment manufacturing
• Electricity and electrical signal measuring instruments manufacturing
• Electricity and electrical signal testing equipment manufacturing
• Electron tube test equipment manufacturing
• Electronic test equipment for testing electrical characteristics manufacturing
• Energy measuring equipment, electrical, manufacturing
• Field strength and intensity measuring equipment, electrical, manufacturing
• Frequency meters (e.g., electrical, electronic, mechanical) manufacturing
• Frequency synthesizers manufacturing
• Function generators manufacturing
• Galvanometers (except geophysical) manufacturing
• Graphic recording meters, electric, manufacturing
• Ignition testing instruments manufacturing
• Impedance measuring equipment manufacturing
• Indicating instruments, electric, manufacturing
• Instrument shunts manufacturing
• Instruments for measuring electrical quantities manufacturing
• Instruments, electric (i.e., testing electrical characteristics), manufacturing
• Integrated-circuit testers manufacturing
• Integrating electricity meters manufacturing
• Internal combustion engine analyzers (i.e., testing electrical characteristics) manufacturing
• Kelvin bridges (i.e., electrical measuring instruments) manufacturing
• Laboratory standards testing instruments (e.g., capacitance, electrical resistance, inductance) manufacturing
• Logic circuit testers manufacturing
• Measuring equipment for electronic and electrical circuits and equipment manufacturing
• Measuring instruments and meters, electric, manufacturing
• Meters, electrical (i.e., graphic recording, panelboard, pocket, portable), manufacturing
• Meters, power factor and phase angle, manufacturing
• Microwave test equipment manufacturing
• Multimeters manufacturing
• Ohmmeters manufacturing
• Oscillators (e.g., instrument type audiofrequency and radiofrequency) manufacturing
• Oscilloscopes manufacturing
• Phase angle meters manufacturing
• Portable test meters manufacturing
• Potentiometric instruments (except industrial process-type) manufacturing
• Power factor meters manufacturing
• Power measuring equipment, electrical, manufacturing
• Pulse (i.e., signal) generators manufacturing
• Radar testing instruments, electric, manufacturing
• Radiofrequency measuring equipment manufacturing
• Radiofrequency oscillators manufacturing
• Recorders, oscillographic, manufacturing
• Relays (except electrical, electronic), instrument, manufacturing
• Resistance measuring equipment manufacturing
• Semiconductor test equipment manufacturing
• Shunts, instrument, manufacturing
• Signal generators and averagers manufacturing
• Spark plug testing instruments, electric, manufacturing
• Spectrum analyzers manufacturing
• Standards and calibration equipment for electrical measuring manufacturing
• Standing wave ratio measuring equipment manufacturing
• Stroboscopes manufacturing
• Sweep generators manufacturing
• Sweep oscillators manufacturing
• Synchroscopes manufacturing
• Tachometer generators manufacturing
• Test equipment for electronic and electrical circuits and equipment manufacturing
• Test sets, ignition harness, manufacturing
• Voltmeters manufacturing
• Watt-hour and demand meters, combined, manufacturing
• Watt-hour and time switch meters, combined, manufacturing
• Watt-hour meters, electric, manufacturing
• Wattmeters manufacturing
• Waveform measuring and/or analyzing equipment manufacturing
• Wheatstone bridges (i.e., electrical measuring instruments) manufacturing
• X-Y recorders (i.e., plotters (except computer peripheral equipment)) manufacturing

Source: US Census Bureau, 2022 NAICS index file.

SBA size standard for 334515

To count as a small business for SBA loans and federal contracts under NAICS 334515, your business (including affiliates) must not exceed 750 employees. Check your business.

Source: SBA table of size standards, effective March 17, 2023.

Closest UK SIC 2007 codes

There is no official one-to-one link between NAICS and UK SIC. These codes share the same international class (ISIC Rev. 4: 2651), so treat them as a starting point and check the definition.

• 26511Manufacture of electronic measuring, testing etc. equipment, not for industrial process controlUK SIC
• 26512Manufacture of electronic industrial process control equipmentUK SIC
• 26513Manufacture of non-electronic measuring, testing etc. equipment, not for industrial process controlUK SIC
• 26514Manufacture of non-electronic industrial process control equipmentUK SIC

Built from Census concordances 2022→2017 NAICS and 2017 NAICS→ISIC Rev. 4.

Similar codes to compare

• 334510Electromedical and Electrotherapeutic Apparatus Manufacturing
• 334511Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
• 334512Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use
• 334513Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables
• 334514Totalizing Fluid Meter and Counting Device Manufacturing
• 334516Analytical Laboratory Instrument Manufacturing
• 334517Irradiation Apparatus Manufacturing
• 334519Other Measuring and Controlling Device Manufacturing