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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:
FromISIC
051
Mining of hard coal
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ToNAICS
2121
Coal Mining
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ToNAICS
2111
Oil and Gas Extraction
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ToNAICS
3251
Basic Chemical Manufacturing
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ToNAICS
3259
Other Chemical Product and Preparation Manufacturing
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ToNAICS
3313
Alumina and Aluminum Production and Processing
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  • approximate NAICS 2121 — direct correspondence
  • approximate NAICS 2111 — direct correspondence
  • approximate NAICS 3251 — mapped via ISIC 281
  • approximate NAICS 3259 — mapped via ISIC 281
  • approximate NAICS 3313 — mapped via ISIC 281