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 3121 — direct correspondence
• approximate NAICS 3119 — mapped via ISIC 208
• approximate NAICS 3112 — direct correspondence
• approximate NAICS 3116 — mapped via ISIC 514
• approximate NAICS 4244 — mapped via ISIC 514
• approximate NAICS 4251 — mapped via ISIC 514
• approximate NAICS 4451 — mapped via ISIC 514
• approximate NAICS 4452 — mapped via ISIC 514