Spanish Company Register: How to Search & Check

Spain’s company register, the Registro Mercantil, records every company’s legal status, capital and administrators. A nota simple informativa costs 0.60 euros per entry under the registrars’ fee schedule. A search and a certified extract are separate products with separate fees. This guide covers how to search the register, what a result shows, checking a company name before registering, and looking up an existing company for due diligence.

What Is the Spanish Company Register (Registro Mercantil)?

The Spanish company register, the Registro Mercantil, is the public record of every registered company: legal name, NIF, registered address, share capital, administrators and current status. You can search it online through the Registro Mercantil Central or a registrar’s index.

Registration is what makes the record legally meaningful in the first place. Incorporating a Spanish company requires a public deed before a notary, and that deed must then be registered at the Registro Mercantil; only on registration does the company acquire the legal personality that corresponds to the corporate form it chose, according to articles 20 and 33 of the Ley de Sociedades de Capital. Article 34 of the same law prevents transfer of its shares until the company, or a later capital increase, is registered.

The register is public. Article 12 of the Reglamento del Registro Mercantil states that the Registro Mercantil is public and that publicity is given by certification or by an informative note covering all or some of the data in an entry, in the form the registrar sets. That publicity is not unlimited: the same article lets a registrar assess and condition a bulk request that affects personal data, so the rule covers public access to a named company’s entry and stops short of open extraction of the whole register.

How Do You Search the Spanish Company Register?

You search the Spanish company register by identifying the company’s exact legal name or NIF, submitting the request online or at the provincial registry, paying the applicable fee and receiving either an informational note or a certified extract.

1. Identify the company.Use the company’s exact registered legal name, exactly as filed, or its NIF. A trade name, a shortened name or the name a company markets itself under often differs from its registered legal name, and searching under one of those returns no result; the mistakes section below covers this in full.
2. Submit the request.Submit an informational request through the Registro Mercantil Central’s public information service for a national-level note, or through the provincial Registro Mercantil where the company is incorporated for a fuller certified extract of its own file.
3. Pay the registrars’ fee.An informative note costs 0.60 euros per entry, under the general arancel de los Registradores Mercantiles, Decreto 757/1973, Numero 22. A busqueda (search) is added instead when the registry details given are incomplete or wrong, priced at 10% of a separate scale with a floor of 0.30 euros and a ceiling of 1.50 euros, under Numero 24 of the same arancel. A certified extract carries its own, separate fee under the same arancel framework.
4. Receive the result.An ordinary informational note delivers a summary of the entry’s current data; a certified extract, requested from the provincial registry where the company’s full file sits, carries the registrar’s certification and is the document that proves the entry’s content against a third party.

Searching “spanish company register,” “company register spain” or a similar phrasing online generally leads to the Registro Mercantil Central’s own search portal, the starting point for both lookup paths this guide covers.

What Information Does a Company Register Lookup Show?

A company register lookup shows the company’s registered legal name and NIF, its registered address, share capital, administrators and current status.

• The registered legal name and NIF. The company’s exact name as filed, and its tax identification number.
• The registered address. The domicilio the company filed with the registry.
• Share capital. The capital figure recorded at incorporation, or updated at a later capital increase; this is not the same as the company’s current net worth, a distinction the mistakes section below returns to.
• Administrators or directors of record. The individuals or entities currently holding an administrator role, as filed.
• Incorporation date. The date the company’s deed was registered and its legal personality took effect, under article 33 of the Ley de Sociedades de Capital.
• Current status. Whether the company is up to date with its Registro Mercantil obligations. Directors must file a certificate of the shareholders’ meeting approving the annual accounts within a month of that approval, under article 279.1 of the Ley de Sociedades de Capital, so a gap in that filing history, or any other act filed against the entry, shows up in the same lookup.

An ordinary informational note reflects this data as it stood when the note was issued. A certified extract, requested at the provincial registry, carries the registrar’s own certification of that same content, the document form that proves the entry against a third party.

How Do You Check If a Company Name Is Available in Spain?

A certificacion negativa is the Registro Mercantil Central’s confirmation that a proposed company name is not already reserved or in use, a required step before a notary can authorize a new SL’s incorporation deed.

The Registro Mercantil Central qualifies whether a requested name meets the naming rules within three business days of receiving the request, then issues or refuses the certification, under article 411 of the Reglamento del Registro Mercantil. A positive result starts two separate periods that run on their own clocks. First, once issued, the name is entered into the Seccion de denominaciones on a provisional basis for six months from the date of issue, under article 412, which blocks anyone else from taking that exact or a confusingly similar name during that window. Second, the certificate itself, for the purpose of being presented to a notary to incorporate the company, is only valid for three months from its date of issue, under article 414; after that it expires, and a fresh certificate has to be requested for the same name, with the expired one attached to the new request. No document incorporating an expired certification can be authorized or registered.

The Registro Mercantil Central’s own published tariff prices the request in two parts: filing the name application costs 6.01 euros, and the certification itself costs a further 6.01 euros, the second figure set by Disposicion Transitoria 19 of the 1996 Reglamento del Registro Mercantil.

Requesting the certification is one step in a longer sequence: choosing whether to register as autonomo or form an SL comes first, per autonomo vs SL, and the notary deed and Registro Mercantil filing that follow the name check are covered in full by company formation in Spain, the fuller registration walkthrough.

Forming a Company and Need the Name Check Handled for You?

A specialist can run the name check, hold the reservation and carry it straight into incorporation.

Getting the certificacion negativa right the first time matters because the three-month certificate window and the six-month reservation window run on different clocks, and a lapsed certificate means starting the name request over. A company formation specialist handles the negative certification alongside the notary deed, company NIF and Registro Mercantil filing, the same sequence company formation in Spain already covers as one engagement, so nobody has to track the name check separately.

Registro Mercantil Central vs Provincial Registro Mercantil: What’s the Difference?

The Registro Mercantil Central is the national index used for name reservations and cross-registry searches; a company’s full file, its incorporation deed, capital, administrators and annual accounts, is filed and held at the provincial Registro Mercantil where the company is incorporated.

An ordinary SL incorporation registers directly at the provincial registry of the company’s own domicile, under article 20 of the Ley de Sociedades de Capital. The division of roles is set out precisely for a branch (sucursal) filing: the opening of a branch is first registered on the parent company’s own hoja, then separately registered at the Registro Mercantil covering the branch’s own domicile, unless that domicile sits in the same province as the company’s, in which case the branch opening is recorded only on the company’s existing hoja, under articles 296 and 298 of the Reglamento del Registro Mercantil. The provincial registrar sends the data to the Registro Mercantil Central for publication in the Boletin Oficial del Registro Mercantil once the branch’s first registration completes. This division of roles applies to the specific case of a branch filing; an ordinary SL incorporation follows the simpler path in the paragraph above.

Why Would You Look Up an Existing Company in the Register?

You look up an existing company in the register to verify it is genuinely registered before you deal with it, whether you are a jobseeker checking an employer, a supplier confirming a client before invoicing, a tenant checking a landlord’s corporate entity, or doing due diligence ahead of a business deal.

This kind of lookup is informational. It can answer a basic registration question with no company-formation engagement required. What the result shows is covered above; the registered legal name, NIF, capital, administrators and current status are the fields a due-diligence check runs against. A certified extract or a professional reading of the entry is the next step, covered below, for a result that raises a question the summary does not settle.

Need a Certified Registry Report or Help Reading One?

A specialist can pull a certified registry extract or read one you already have, for an unfamiliar entry, a capital figure that does not match what a counterparty claimed, or an administrator list that needs checking against a contract signatory.

Here, you already know the company exists and you want verification or interpretation of what you found. Our company formation team also handles registry-reading requests like this, so the same enquiry covers both.

What Mistakes Do People Make Reading a Company Register Result?

Most reading mistakes come from treating the register’s fields as something they are not: a certified document, a solvency check, or a live, always-current record.

• Treating a free online summary as a certified legal document. Only a certified extract, requested at the provincial registry, carries the registrar’s certification; an ordinary informational note does not prove the entry’s content against a third party.
• Confusing registration with good financial standing. An ordinary lookup shows legal status, not a solvency verdict, and a company current on its filings can still be in financial difficulty that a basic informational note does not surface.
• Treating recorded share capital as current net worth. The capital figure reflects what was contributed at incorporation or a later capital increase, and it stays on the entry regardless of how the company’s finances have moved since.
• Assuming a listed administrator is still current without checking the filing date. An administrator’s role, once recorded, stays on the entry until a later filing changes it; the listing does not update itself in real time.
• Searching by trade name. A company’s market-facing name and its registered legal name can differ, and a search under the trade name returns no result; the exact registered legal name is what the search needs.