SICCODE.comSIC LookupD Manufacturing38 Measuring, Analyzing, and Controlling Instruments; Photographic, Medical and Optical Goods; Watches and Clocks382 Laboratory Apparatus and Analytical, Optical, Measuring, and Controlling InstrumentsSIC 3825
SIC Code 3825 – Instruments for Measuring and Testing of Electricity and Electrical Signals
Official 4-digit SIC code Source: OSHA SIC Manual Updated Nov 13, 2026
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More specific segments
Which businesses belong in SIC 3825?
Usually classified in SIC 3825
- Alternator and generator testers
- Ammeters
- Ampere-hour meters
- Analog-to-digital converters, electronic instrumentation type
- Analyzers for testing electrical characteristics
Usually classified elsewhere
- Search, Detection, Navigation, Guidance, Aeronautical, and Nautical Systems and Instruments 3812 · Search, Detection, Navigation, Guidance, Aeronautical, and Nautical Systems and Instruments
Official definition for SIC 3825 - Instruments for Measuring and Testing of Electricity and Electrical Signals
Establishments primarily engaged in manufacturing instruments for measuring the characteristics of electricity and electrical signals, such as voltmeters, ammeters, wattmeters, watt-hour meters, demand meters, and equipment for testing the electrical characteristics of electrical, radio, and communication circuits and of internal combustion engines.
Source: OSHA SIC Manual
Companies in SIC 3825 - Instruments for Measuring and Testing of Electricity and Electrical Signals
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Preview · details masked| Company | Contact & title | Website | Phone | Employees |
|---|---|---|---|---|
| Keysight Technologies Inc Santa Rosa, CA | ||||
| Plantronics Inc Santa Cruz, CA | ||||
| Sypris Solutions Inc Louisville, KY |
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Keysight Technologies Inc · Santa Rosa, CA
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Plantronics Inc · Santa Cruz, CA
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Key facts for SIC 3825 - Instruments for Measuring and Testing of Electricity and Electrical Signals
- SIC code
- 3825
- Official title
- Instruments for Measuring and Testing of Electricity and Electrical Signals
- Scope
- OSHA SIC Manual, establishment-level
- Division
- D Manufacturing (20–39)
- Industry group
- 382 Laboratory Apparatus and Analytical, Optical, Measuring, and Controlling Instruments
- Official source
- OSHA SIC Manual
- Where SIC is used
- Used on EPA permit forms and in OSHA inspection data, as well as SEC filings and business lists. See which agencies still use SIC codes →
SIC Classification Hierarchy
Four official SIC levels, plus a more detailed commercial classification level.
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Industry · Official 4-Digit 3825 Instruments for Measuring and Testing of Electricity and Electrical Signals
One example classification path is shown. Other branches may exist. The 6-digit Marketing Level is a commercial extension, not an official SIC classification.
Other codes in Industry Group 382: 3821 · Laboratory Apparatus and Furniture 3822 · Automatic Controls for Regulating Residential and Commercial Environments and Appliances 3823 · Industrial Instruments for Measurement, Display, and Control of Process Variables; and Related Products 3824 · Totalizing Fluid Meters and Counting Devices 3826 · Laboratory Analytical Instruments 3827 · Optical Instruments and Lenses 3829 · Measuring and Controlling Devices, Not Elsewhere Classified
More specific segments in SIC 3825
Segments let you target only the companies you need. Add one or more to your list to get pricing and a free sample.
461 U.S. companies across 7 segments · Segment codes are 6-digit marketing categories that extend the official 4-digit SIC code. They are not official SIC codes.
SIC 3825 is in your list, which already includes all 7 segments.
| Code | Segment | Companies | Build your list |
|---|---|---|---|
| 3825-01 | Recording Instruments Ind/Scientfc (Manufacturing) | 28 28 companies | |
| 3825-03 | Calibration Devices (Manufacturing) | 4 4 companies | |
| 3825-04 | Automobile Diagnostic Service Equipment (Manufacturing) | 7 7 companies | |
| 3825-05 | Instruments-Measuring (Manufacturing) | 79 79 companies | |
| 3825-06 | Turned Parts-Precision (Manufacturing) | 4 4 companies | |
| 3825-07 | Battery Tester Manufacturer & Sales | 3 3 companies | |
| 3825-98 | Instrs-Measuring/Testing Elec (Manufacturing) | 336 336 companies |
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Example companies in SIC 3825
See how SICCODE.com evaluates businesses using documented activities and official SIC definitions. Select a company to review its classification and the reasoning behind it.
436 verified U.S. companies
- Brewer Science Inc Rolla, MO View classification →
- Balboa Water Group Tustin, CA View classification →
- Bird Technologies Group Solon, OH View classification →
- Aries Industries Inc Waukesha, WI View classification →
- ITT Inc West Harrison, NY View classification →
- Cohu Inc Poway, CA View classification →
- inTEST Corp Mount Laurel, NJ View classification →
- A E H R Test Systems Fremont, CA View classification →
NAICS, ISIC and NACE Rev. 2.1 crosswalk for SIC 3825 - Instruments for Measuring and Testing of Electricity and Electrical Signals
Correspondences in NAICS, ISIC and NACE Rev. 2.1 (via ISIC) for SIC 3825 - Instruments for Measuring and Testing of Electricity and Electrical Signals. These mappings do not replace the official SIC definition.
| System | Code | Title |
|---|---|---|
| SIC This page | 3825 | Instruments for Measuring and Testing of Electricity and Electrical Signals |
| NAICS | 334514 | Totalizing Fluid Meter and Counting Device Manufacturing Totalizing Fluid Meter and Counting Device Manufacturing |
| NAICS | 334515 | Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals |
| ISIC Rev. 4 | 2651 | Manufacture Of Measuring, Testing, Navigating And Control Equipment Manufacture Of Measuring, Testing, Navigating And Control Equipment |
| ISIC Rev. 4 | 2652 | Manufacture Of Watches And Clocks Manufacture Of Watches And Clocks |
| NACE Rev. 2.1 (via ISIC 2651) | 26.51 | Manufacture of instruments and appliances for measuring, testing and navigation Manufacture of instruments and appliances for measuring, testing and navigation |
| NACE Rev. 2.1 (via ISIC 2652) | 26.52 | Manufacture of watches and clocks Manufacture of watches and clocks |
Source: Eurostat, NACE Rev. 2.1 to ISIC Rev. 5 correspondence; United Nations Statistics Division, ISIC Rev. 4 to ISIC Rev. 5 correspondence table.
Sources for SIC 3825
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Official classification source U.S. Occupational Safety and Health Administration.
Standard Industrial Classification Manual (1987), SIC 3825. OSHA SIC Manual → -
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About this classification
This page combines the official SIC definition with classification analysis, crosswalks, and SICCODE.com commercial data. Classifications are reviewed regularly by the Industry Classification Review Team.