Regex Editor & Tester

Matches Swiss business identification numbers (UID / Unternehmens-Identifikationsnummer), which consist of the prefix CHE (ISO country code for Switzerland) or ADM (used for federal administrative units) followed by exactly 9 digits. The case-insensitive flag also accepts lowercase variants like che or adm. Useful for validating Swiss company registration numbers in forms or extracting UIDs from documents and text.