Industry classification assigns a standardized code to a business based on its primary economic activity. The two main systems are NAICS (North American Industry Classification System) and SIC (Standard Industrial Classification). NAICS code 541511 means "Custom Computer Programming Services." SIC code 7372 means "Prepackaged Software." These codes create a universal language for categorizing businesses so they can be compared, filtered, and analyzed consistently.
Why It Matters
Free-text industry fields in CRMs are chaos. "Software," "SaaS," "Technology," "Tech," "IT Services," and "Information Technology" might all describe the same company. You can't segment, route, or report on inconsistent categories. Standardized industry codes fix this. They also enable compliance with regulations that restrict marketing to certain industries and make your data compatible with external datasets that use the same classification system.
How Industry Classification Works
- NAICS codes: 6-digit codes organized hierarchically. First 2 digits = sector, next 2 = subsector, next = industry group, last = specific industry
- SIC codes: 4-digit codes still used by SEC filings and some government databases. Older but still relevant for financial data
- Automated classification: Match company descriptions, website content, and business registration data against code definitions
- Manual review: For ambiguous cases where a company spans multiple industries, human judgment picks the primary classification
- Enrichment: Append NAICS/SIC codes to existing records that only have free-text industry descriptions
Example
A sales team wants to target healthcare IT companies. Their CRM has "Healthcare," "Health," "Medical," "HealthTech," and "Health IT" scattered across 3,000 records. After classification, each record gets a 6-digit NAICS code. Filtering by NAICS 5112 (Software Publishers) + healthcare-related keywords produces a precise list of 340 companies.
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