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Guides to Swiss company data, registers and B2B marketing

Guides to Swiss company addresses: what to check when buying, what the UWG allows in advertising, what the commercial register contains and how NOGA works.

25 October 2026

B2B marketing in Switzerland: what the UWG allows

Email, phone, letter: what Art. 3 UWG requires towards businesses, what the asterisk marking means and what an address list does not change.

Buying company addresses in Switzerland: what to check

Eight checks before you order: source, reference date, asterisk marking, email and the UWG, the UID as key and price per usable record, plus four warning signs.

NOGA 2008: industry codes for target group lists in Switzerland

How the Swiss industry classification is structured, which Swiss types help with a selection and what changes with NOGA 2025.

Commercial register, Zefix and UID: which company data is public in Switzerland

What the commercial register contains, who must register, what Zefix provides as open data and why the UID register only allows individual look-ups.