Supporting industry classifications and standard geographies

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Update Date : 14/08/2026

Dun & Bradstreet incorporates Standard Industrial Classification (SIC) as a global industry standard for classifying what a business does. Our proprietary SIC + 4 codes add deeper granularity at the sub-industry and line-of-business level. D&B also supports the International Organization for Standardization (ISO) country codes and utilizes global address standardization processes to standardize local data to local postal standards. This allows you to understand industry segmentation and geography definitions through a globally consistent coding structure.