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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
291
Petroleum Refining
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ToNAICS
3241
Petroleum and Coal Products Manufacturing
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ToNAICS
3251
Basic Chemical Manufacturing
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  • approximate NAICS 3241 — direct correspondence
  • approximate NAICS 3251 — mapped via ISIC 192