SICCODE.comSIC LookupD Manufacturing36 Electronic and other Electrical Equipment and Components, except Computer Equipment367 Electronic Components and AccessoriesSIC 3672
SIC Code 3672 – Printed Circuit Boards
Official 4-digit SIC code Source: OSHA SIC Manual Updated Nov 13, 2026
At a glance
Companies
More specific segments
Related NAICS
Which businesses belong in SIC 3672?
Usually classified in SIC 3672
- Circuit boards, television and radio: printed
- Printed circuit boards
- Printed circuits
- Wiring boards
Official definition for SIC 3672 - Printed Circuit Boards
Establishments primarily engaged in manufacturing printed circuit boards.
Source: OSHA SIC Manual
Companies in SIC 3672 - Printed Circuit Boards
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Preview · details masked| Company | Contact & title | Website | Phone | Employees |
|---|---|---|---|---|
| Ttm Technologies Inc Costa Mesa, CA | ||||
| Westak Inc Sunnyvale, CA | ||||
| T TM Technologies Chippewa Falls, WI |
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Ttm Technologies Inc · Costa Mesa, CA
Contact Website Phone Employees -
Westak Inc · Sunnyvale, CA
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- SIC & NAICS
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Key facts for SIC 3672 - Printed Circuit Boards
- SIC code
- 3672
- Official title
- Printed Circuit Boards
- Scope
- OSHA SIC Manual, establishment-level
- Division
- D Manufacturing (20–39)
- Industry group
- 367 Electronic Components and Accessories
- 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 3672 Printed Circuit Boards
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 367: 3671 · Electron Tubes 3674 · Semiconductors and Related Devices 3675 · Electronic Capacitors 3676 · Electronic Resistors 3677 · Electronic Coils, Transformers, and other Inductors 3678 · Electronic Connectors 3679 · Electronic Components, Not Elsewhere Classified
More specific segments in SIC 3672
Segments let you target only the companies you need. Add one or more to your list to get pricing and a free sample.
478 U.S. companies across 3 segments · Segment codes are 6-digit marketing categories that extend the official 4-digit SIC code. They are not official SIC codes.
SIC 3672 is in your list, which already includes all 3 segments.
| Code | Segment | Companies | Build your list |
|---|---|---|---|
| 3672-01 | Printed & Etched Circuits | 223 223 companies | |
| 3672-02 | Circuit Boards | 225 225 companies | |
| 3672-03 | Circuit Board Assembly & Repairs | 30 30 companies |
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Example companies in SIC 3672
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.
428 verified U.S. companies
- Multek Flexible Circuits Inc Northfield, MN View classification →
- Sanmina Corp San Jose, CA View classification →
- Cal Comp Electronic Logansport, IN View classification →
- Arc Tronics Inc Elk Grove Village, IL View classification →
- Gorilla Circuits Inc San Jose, CA View classification →
- Parlex USA Inc Methuen, MA View classification →
- American Standard Circuits Inc West Chicago, IL View classification →
- Hallmark Circuit Inc Poway, CA View classification →
NAICS and ISIC crosswalk for SIC 3672 - Printed Circuit Boards
Correspondences in NAICS and ISIC for SIC 3672 - Printed Circuit Boards. These mappings do not replace the official SIC definition.
| System | Code | Title |
|---|---|---|
| SIC This page | 3672 | Printed Circuit Boards |
| NAICS | 334412 | Bare Printed Circuit Board Manufacturing Bare Printed Circuit Board Manufacturing |
| ISIC Rev. 4 | 2610 | Manufacture Of Electronic Components And Boards Manufacture Of Electronic Components And Boards |
Sources for SIC 3672
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Official classification source U.S. Occupational Safety and Health Administration.
Standard Industrial Classification Manual (1987), SIC 3672. OSHA SIC Manual → -
SICCODE.com commercial data Company-record counts, coverage, and related commercial data are maintained by SICCODE.com. Methodology →
SICCODE.com is an independent publisher. Official SIC titles and definitions come from the OSHA SIC Manual; commercial database counts are SICCODE.com records.
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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.