Chummy Construction

The essential tool for cross-border due diligence, compliance, and data cleansing. A one-stop solution for precise industry code mapping.

Multi-Standard Mapping: Bi-directional conversion across NAICS 2022, GB/T 4754-2017, NACE Rev. 2.1, and ISIC Rev.5.

Free Lookup: Instant online search for single-code conversions.

Enterprise Plans: Bulk matching, API access, and full database downloads.

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