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Official North American industry classification system for business reporting and analysis.

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Established U.S. industry classification system widely used across business, reporting, analytics, and cross-dataset comparability.

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Standard classification systems used to organize industries, products, occupations, and business identifiers across U.S. and global datasets

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What Is an SIC 6-Digit Code?
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SIC 6-Digit NAICS 8-Digit ISIC (International) NACE (Europe) SOC (Occupations) CIP (Programs) Extended SOC (O*NET)

SIC 6-Digit Codes for "sic:3629"

SIC Marketing Level codes provide more specific industry categories within official 4-digit SIC classifications, supporting more precise industry segmentation, market research, and business targeting. For official SIC classification, use the 4-digit SIC code.

Search this keyword in NAICS 8-Digit codes.

companies

Verified U.S. companies available for purchase in this industry. Counts are based on primary business classifications.

Industry SIC 6-Digit U.S. companies Add

Rectifiers-Electric (Manufacturing)

Parent: Electrical Industrial Apparatus, Not Elsewhere Classified

 SIC Marketing Level 3629-01 companies 4companies

Power Factor Correction (Manufacturing)

Parent: Electrical Industrial Apparatus, Not Elsewhere Classified

 SIC Marketing Level 3629-02 companies 2companies

Electrical Indstrl Apparatus NEC (Manufacturing)

Parent: Electrical Industrial Apparatus, Not Elsewhere Classified

 SIC Marketing Level 3629-98 companies 328companies

Other classifications

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NAICS definitions: U.S. Census Bureau, 2022

SIC definitions: OSHA SIC Manual

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