Company Legal ID Finder (BE / NL / FR / LU / DE) — VAT & registry numbers with VIES check

Give a list of company websites. For each one you get the company number and VAT number published on that company's own website, checked with the official checksum rules and, optionally, with the European Commission's VIES service. Every number comes with the page where it was found.

Use it to: de-duplicate and match lead lists to registry data, fill in VAT numbers for invoicing or Peppol, check that a supplier's website names a valid company, or enrich a list from a business-listing or contact actor.

What you get per website

• Company number and VAT number of the site owner, with the type and the country:
  • Belgium: enterprise number (KBO/BCE), which is also the VAT number
  • Netherlands: KvK number and VAT number (btw-id)
  • France: SIREN, SIRET and the intra-community VAT number
  • Luxembourg: VAT number, RCS number and legal-entity matricule
  • Germany: USt-IdNr and register number (Handelsregister HRB/HRA, or Vereinsregister VR, Partnerschaftsregister PR, Genossenschaftsregister GnR), with the register court
• Checksum status for every number: valid, format_only (KvK, RCS, HRB have no public checksum) or invalid.
• VIES result (when viesCheck is on): valid, invalid or source_unavailable, with the date of the check.
  • For a French company that only publishes its SIREN, the VAT number is derived from the SIREN and checked. The output marks this as derived.
  • The registered name and address are shown only when they contain a legal form (SA, BV, SARL, GmbH…). This keeps data of sole traders, who are natural persons, out of the output.
• Name match between the VIES name and the names the website uses: match, partial, no_match or not_available.
• Confidence: high, medium or low, with the reasons.
• Several companies on one site (entity_conflict), for example group or franchise sites.
• Source evidence for every number: the page URL and the text around the number. When no company name is confirmed by VIES (no VIES check, or a KvK/HRB number only), only the label and the number are kept, so that names, addresses or phone numbers of a sole trader around it are not repeated.
• Third-party numbers kept apart: numbers of the hosting provider, web agency or payment provider in a legal notice, and numbers of other parties in the site's structured data (creator, provider, parent organisation …), go to third_party_identifiers or are left out, not into the company identity.
• Status per website: found (billed: a checksum-valid number, a labelled register number or an active VIES number of the site owner), found_unverified (shown, not billed: weaker evidence, or the website redirects to another domain whose company it would be), not_found, invalid_only, unreachable, redirected_to_other_domain, failed, invalid_input (not a usable public website address; free).

How it works

• Reads only the company's own website: the same domain, robots.txt respected, at most 5 pages. Contact and legal-notice pages (impressum, mentions légales, privacy) are read first.
• Numbers are taken only when a label is next to them (BTW/TVA/VAT, SIREN/SIRET/RCS, KvK, HRB, USt-IdNr…), or when they carry a country prefix with a valid checksum. Loose digit strings are ignored.
• No forms, no logins, no mailbox checks, no third-party platforms.
• VIES requests are spread out and retried when a member state is busy. An error is reported as source_unavailable, never as "invalid".

Pricing

Pay per event (USD). Every run also carries Apify's standard start event (apify-actor-start): $0.00005 per run, or 5 cents per 1,000 runs.

Event	When	Price
website-checked	every website that was checked (failures on our side are free)	$0.002
company-identity	status found: a valid identifier of the site owner (checksum-valid, a labelled register number such as KvK/HRB/RCS, or active in VIES)	$0.02

• Example: 1,000 websites with identities on 260 of them cost about $2 + $5.20 = $7.20.
• Unreachable or empty websites only cost the small check. Rows are stored before they are charged. The run stops before your spending limit is passed and leaves websites it had no time for (also near maxRunSeconds); unprocessed websites are listed in OUTPUT and picked up when the run is resumed.

Limits — please read

• A number on a website is a claim of that website. VIES confirms that a VAT number is registered. It does not prove that the website belongs to that company; the name match and confidence level are signals, not proof.
• invalid or source_unavailable in VIES does not prove that a company does not exist.
• Third-party numbers are recognised from the surrounding wording. Unusual layouts can be missed.
• Many small businesses do not publish their number on their website. Expect a result for a minority of websites. French and German sites must publish a legal notice; Dutch sites show their numbers less often.
• PDF documents are not read in this version.

Measured results

Blind test, October 2026, on 400 company websites that the actor had never seen before: 80 each from Belgium, the Netherlands, France, Luxembourg and Germany, drawn at random from open map data.

• What it found: 103 websites (26%) published an identifier that the actor returned as the company identity.
  • 108 websites in the sample could not be reached at all.
  • Of the websites that could be read, about 1 in 3 gave a result.
  • Per country: Germany 36, Belgium 26, France 19, the Netherlands 14 and Luxembourg 8, out of 80 each.
• How accurate it was: for 99 of the 103, the main identifier was the number of the company operating the website, copied exactly and with the right type.
  • The 4 misses were a hosting company's number, a truncated German register number, a Luxembourg permit number read as a French SIREN, and a Vereinsregister number labelled as a commercial register number.
  • The first three have since been fixed. The fixes are not part of the blind result.
• How it was checked: two reviewers, working separately, checked every number against the saved pages and agreed on all of them.
• What it does not tell you: this is a measured result on one sample, not a guarantee for your list.

Data sources and terms

• The websites you provide, read according to their robots.txt.
• VIES, the VAT Information Exchange System of the European Commission (public service, no key needed).