Convert industry codes

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

• exact NAICS 334 — direct correspondence
• approximate NAICS 333 — mapped via ISIC 30
• approximate NAICS 336 — mapped via ISIC 30
• approximate NAICS 323 — mapped via ISIC 18
• approximate NAICS 331 — mapped via ISIC 27
• approximate NAICS 335 — mapped via ISIC 27
• approximate NAICS 339 — mapped via ISIC 18