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Convert industry codes

Cross-system equivalents backed by official correspondence tables and exact code matches — never guesses. Approximate mappings are labeled. How it works →

Examples:
FromSIC
431
United States Postal Service
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ToNAICS
4911
Postal Service
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ToNAICS
4921
Couriers and Express Delivery Services
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ToNAICS
4922
Local Messengers and Local Delivery
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  • approximate NAICS 4911 — direct correspondence
  • approximate NAICS 4921 — mapped via ISIC 533
  • approximate NAICS 4922 — mapped via ISIC 533