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 522 — direct correspondence
• approximate NAICS 525 — direct correspondence
• approximate NAICS 524 — mapped via ISIC 63
• approximate NAICS 523 — direct correspondence
• approximate NAICS 531 — mapped via ISIC 67
• approximate NAICS 551 — direct correspondence
• approximate NAICS 533 — mapped via ISIC 67
• approximate NAICS 521 — direct correspondence