Convert industry codes

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

• approximate NAICS 5222 — mapped via ISIC 649
• approximate NAICS 5231 — mapped via ISIC 649
• approximate NAICS 5311 — direct correspondence
• approximate NAICS 5239 — mapped via ISIC 649
• approximate NAICS 5251 — mapped via ISIC 643
• approximate NAICS 5259 — mapped via ISIC 643
• approximate NAICS 5331 — direct correspondence