Contact
Contact the Research Desk
Use the contact details below for company corrections, listing questions, category suggestions, or general questions about the site.
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How to Reach Us
Company corrections
Send the current page URL, the detail that needs correction, and a reliable public source.
Listing questions
Share the company website, Switzerland location, category, and links that show the relevant service work.
Research questions
Ask about the public methodology, category structure, or the information used on a listing page.