The contract looks ordinary: an Italian limited company, a clean VAT number, three years of filed accounts. Then you open the shareholder page and the trail leaves the country. A Dutch holding company holds 70 per cent; its sole director signs from an address that turns out to be a serviced office in Cyprus. Nothing about that is automatically suspicious. But it is exactly where most desk research stops, and where method starts to matter. Company registers in the EU are not one database with different languages. They are twenty-odd national systems with different rules about what must be published, how fast, and to whom. Choosing the wrong source first does not just cost you an afternoon. It gives you a confident answer that happens to be wrong.

Why the order matters more than the tool

The instinct is to start with whatever returns a full profile in one click. Aggregators and open databases feel complete: a company name, a status, a few officers, a map. But the legal weight of that record is close to zero. A commercial aggregator may still list a company as active months after a cancellation, or merge two entities that share a name across two countries. An official extract with a protocol number, a filing date and a document reference is a different species of evidence.

So the sequence below is not about which tool is best. It is about which source can carry the weight of a decision, and which ones only generate leads. Read the official record first, use open data to widen the field, then go back and confirm every link in an official source. Reversing that order is how reports end up citing a directory instead of a register.

Italy first: what the Registro delle Imprese actually gives you

The Italian company register is held by the Chambers of Commerce and managed through InfoCamere. A free name search on the register's public portal confirms whether a company exists and returns its REA number and basic details; full extracts and filed accounts are paid documents, usually a few euros. That small cost is why so many people skip it. Do not skip it.

Reading an extract properly

Ask for the historical extract, not just the current one. The current version tells you who the directors are today; the historical version tells you when they arrived, when share capital changed, when the registered office moved city for the third time, and what the company was previously called. Those transitions are often the story.

• Filed accounts. Balance sheets and notes are deposited in structured digital format. The notes sometimes name related parties, financing arrangements and guarantees that never appear in a short profile.
• Officers and shareholders. For a limited liability company (Srl) the extract generally lists shareholders; for a joint stock company (Spa) it usually does not, and you will need other sources.
• Insolvency and protests. Winding-up proceedings, struck-off status and unpaid bill protests appear in specific sections. Check them before anything else.
• Certified email and sector codes. A certified email domain and the declared activity code can quietly confirm or contradict what a company says on its own website.

The gaps you will hit

The register is declaratory: it records what companies file, not what they do. Beneficial ownership information is collected through the Italian beneficial owner register, but public access has been narrowed following European court rulings on data protection, so do not promise a client a free lookup of who is really behind a structure. Foreign-controlled branches appear with little more than the parent's name and country. There is no register of corporate groups. And a chain of companies held through other companies can terminate, quite legally, at a nominee arrangement in another member state.

The European layer: interconnection, not a single register

The Business Registers Interconnection System, reachable through the European e-Justice Portal, does not store company data itself. It tells you which national register holds the file and, where the register allows it, returns company details or documents. The digitalisation directives expanded this cross-border access, but depth still varies widely by country: some registers give you a free full profile, others return a name and an address and ask you to pay for the rest.

Two related tools are worth running in parallel. The VIES VAT validation service confirms whether a VAT number is active for intra-EU transactions, which is useful when a supplier's number looks formatted correctly but belongs to a dormant entity. EU procurement data on TED reveals what a company has won, from whom and for how much. Neither proves ownership, and neither is a substitute for a register extract, but both narrow the search.

National registers worth a bookmark

Once the trail leaves Italy, you need the register of the country where the next link sits. A working shortlist:

• United Kingdom: Companies House, free and unusually generous, including persons with significant control.
• Germany: the commercial register plus the broader company register that collects filed documents.
• France: Infogreffe extracts and the state company directory for basics and accounts.
• Netherlands and Belgium: KvK and the KBO/BCE, both usable for officer checks.
• Spain: the commercial register network through the Registradores portal.
• Nordics and Ireland: Bolagsverket, Brønnøysund and the Irish Companies Registration Office, several with beneficial ownership registers.

The order that works in cross-border ownership research

1. Fix the entity, not the brand. Pin down exact legal name, legal form, registered office, registration number and VAT number. Founding date and activity code disambiguate lookalikes.
2. Pull the official record at home. Historical extract plus filed accounts. Note the protocol number and the date of extraction.
3. Validate the VAT number. A mismatch between a trading company and its VAT identity deserves an explanation.
4. Identify the next link. Shareholders from the extract, or the parent named in a branch registration. If the entity is listed, move to the market regulator's ownership disclosures instead of the company register.
5. Route yourself. Use the e-Justice search to find which register holds the parent, then go straight to that register rather than reading a summary about it.
6. Read the parent's own filings. Accounts, director changes, capital movements. A holding company with one euro of capital and a director who signs for forty other companies tells you something.
7. Check the edges. Beneficial ownership registers where public, sanctions lists, procurement awards, insolvency notices.
8. Then aggregate. Open databases suggest jurisdictions and names you would not have guessed. Confirm each of those leads back in an official source before it reaches a page.

Aim for a chain in which every link is a document you can name, date and re-open six months from now. Anything else is a hypothesis.

Open data and aggregators: useful, never final

Aggregators such as OpenCorporates, the global LEI index, sanctions datasets and the journalism leak archives are excellent for discovery. They are poor for proof. Identifiers get matched loosely, coverage skews towards English-speaking jurisdictions, and the distinction between a director and a beneficial owner blurs in the summarised view. Treat those tools as a way to generate questions: which other company shares this address, which officer appears in three countries, which entity has an LEI but no filings.

A short practical checklist

Before you write a sentence that attributes ownership, run through this. Have you got the historical extract, not only the current one? Have you read the filed accounts of the parent, not just its profile? Have you recorded registration numbers, document dates and the exact version you used? Have you checked insolvency and sanctions lists? Have you distinguished, in your own notes, between what a register states and what you infer? And have you kept the screenshots and extracts together, so the trail survives a re-check?

One caution, since this work often ends in publication or in a business decision: disclosure obligations, data protection rules on naming individuals, and the legal weight of foreign documents are matters for a qualified lawyer in the relevant jurisdiction. Take advice before you rely on a chain of ownership in a formal or public document. The research order above will get you to the right questions faster. The judgement call about what you can safely say still belongs to a professional.

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