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 3231 — direct correspondence
• approximate NAICS 3131 — mapped via ISIC 131
• approximate NAICS 3132 — mapped via ISIC 131
• approximate NAICS 3133 — mapped via ISIC 131
• approximate NAICS 3149 — mapped via ISIC 131
• approximate NAICS 3399 — mapped via ISIC 181