If you are building anything that touches European business data — onboarding, invoicing, KYB, fraud checks — you will eventually ask the same question I did: which countries can I actually get company data from, for free, without an account? I could not find this written down anywhere, so I worked it out the hard way while building a supplier checker. Here it is. The baseline: VIES The European Commission runs VIES , which validates VAT numbers across all 27 member states pl...