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 4811 — direct correspondence
• approximate NAICS 4812 — direct correspondence
• approximate NAICS 4879 — mapped via ISIC 452
• approximate NAICS 4921 — mapped via ISIC 451
• approximate NAICS 6219 — mapped via ISIC 452
• approximate NAICS 9271 — direct correspondence