Business Lawyers in Madrid: Comprehensive Legal Advisory for Companies

Madrid is Spain's primary judicial, regulatory, and economic capital, hosting the Supreme Court (Tribunal Supremo), the National High Court (Audiencia Nacional), the National Competition and Markets Commission (CNMC), the National Securities Market Commission (CNMV), and the Spanish Tax Agency's (AEAT) national headquarters. Companies operating in Madrid are subject to Spanish national law — including the Ley de Sociedades de Capital (LSC), the Workers' Statute (Estatuto de los Trabajadores), the Ley Concursal (TRLC), and the GDPR as applied by the AEPD — as well as the Madrid Community's specific regulations in areas such as urban planning, environmental licensing, and regional taxes. The concentration of Spain's highest-impact courts and regulatory bodies in Madrid creates a distinctively demanding legal environment for businesses.

Why Madrid requires business lawyers with specific knowledge of its regulatory environment

Madrid is not simply Spain’s economic capital. It is also the country’s judicial and regulatory capital. Within a small radius, you find the Supreme Court, the National High Court, the CNMC, the Spanish Data Protection Agency, the Bank of Spain, the CNMV, and the AEAT Central Large Taxpayer Delegation. Companies operating here — regardless of size — are at the epicentre of the most intensive inspection, enforcement and judicial activity in Spain.

The practical implication for any company with a significant seat or operations in Madrid: legal risks are real, regulatory exposure is multi-front, and the complexity of proceedings demands advisers with proven experience in local forums. A firm that does not regularly work before the Madrid Commercial Courts, the National High Court’s Administrative Division, or the AEAT inspection teams is at a disadvantage when a dispute arises.

Our Madrid legal team: comprehensive coverage from daily advisory to complex litigation

From our Madrid office we provide comprehensive legal coverage for companies of all sizes: growth-stage startups, family-owned SMEs internationalising, Spanish subsidiaries of European and American groups, and large corporations with cross-cutting legal needs.

Our model is that of a full-service in-house counsel: we are not area specialists who refer out the rest, but a multidisciplinary team covering commercial law, employment law, criminal compliance, data protection and litigation and arbitration through a single trusted relationship.

Courts and regulators in Madrid that your company needs to know

Madrid concentrates the jurisdiction of the most relevant judicial and regulatory bodies in the Spanish system:

• Supreme Court: final instance for civil, commercial, administrative and social matters. Supreme Court rulings set the doctrine applied by all lower courts.
• National High Court (Audiencia Nacional): exclusive jurisdiction in national-scope unfair competition, CNMC sanction appeals, and economic crimes of national significance.
• Madrid Commercial Courts: first instance for insolvency, intellectual property, unfair competition and commercial companies. Spain’s highest-volume and most specialised commercial courts.
• CNMC: competition authority with enforcement power reaching up to 10% of the group’s global turnover. Most CNMC inspection activity is Madrid-centred.
• AEAT — Central Large Taxpayer Delegation and Madrid Special Delegation: the two most active and technically sophisticated tax inspection units in Spain.

What our legal advisory for companies in Madrid includes

Commercial and corporate: company formation, statute amendments, shareholders’ agreements, corporate transactions, commercial contracts and investor relations.

Employment: ERE/ERTE programmes, individual dismissals, labour inspectorate proceedings, SMAC, Social Courts and the Madrid Superior Court of Justice.

Compliance: criminal compliance programme (Article 31 bis CP), whistleblowing channel (Law 2/2023), AML prevention and sector-specific compliance.

Data protection: outsourced DPO, GDPR audits, breach management and AEPD relations.

Litigation: judicial proceedings before Commercial Courts, the National High Court and the Supreme Court, and national and international arbitrations.

Request an initial meeting with our Madrid legal team. The diagnostic consultation is free and will help identify your company’s main legal risks and the most efficient coverage model. Contact us through our Madrid office or request an appointment directly from here.

CNMC and Competition Law in Madrid: What Your Company Needs to Know

The Comisión Nacional de Mercados y la Competencia (CNMC) is headquartered in Madrid and is the regulator with the greatest sanctioning power in the Spanish administrative legal system: fines for competition law infringements — cartels, abuse of dominant position — can reach 10% of the entire group’s global turnover, not just the infringing entity’s revenue. Over the past five years, the CNMC has significantly intensified its inspections in sectors including energy, food retail, telecoms, professional services, and public procurement.

The most frequent risk situations for Madrid-based companies include: exchanging information on prices or commercial strategies with competitors in industry association settings, clauses in distribution contracts that imply resale price maintenance or restrict online sales, and post-contractual non-compete agreements that are excessive in duration or scope. Many of these situations arise unintentionally: a manager who shares cost data at a sector meeting, or a distribution contract drafted without reviewing the Vertical Block Exemption Regulation, can generate real sanctioning exposure.

A competition compliance programme — competition policy, commercial team training, procedures for tenders and sector meetings — is the preventive instrument that reduces both the probability of an infringement and the sanction if one occurs. The CNMC explicitly values the existence and quality of a compliance programme as a mitigating factor in fine determination.

Pre-Litigation MASC Requirement Under Organic Law 1/2025

Organic Law 1/2025, with effect from 3 April 2025, introduced a mandatory Adequate Dispute Resolution Mechanism (MASC) attempt as an admissibility condition for most civil and commercial claims in Spain. In practice, before filing a claim before the Madrid Commercial Courts, parties must evidence that they have attempted to resolve the dispute through mediation, conciliation, a binding offer, or another recognised MASC.

The implications for companies with Madrid litigation are significant. The litigation strategy must now incorporate the MASC phase from the outset — not as a formal procedural step, but as a genuine resolution opportunity that can be faster and more economical than court proceedings. Preparation of the MASC requires the same rigour as preparation of the claim: the position taken in negotiation or mediation can have procedural consequences if court proceedings later arise. Unjustified refusal to attempt the MASC can also have adverse costs implications.

Criminal Compliance in Madrid: Article 31 bis CP and the Anti-Corruption Prosecutor’s Office

Madrid is where the most relevant corporate criminal proceedings in Spain are handled: the Anti-Corruption and Economic Crimes Prosecutor (Fiscalía Anticorrupción) is based here, the National High Court has jurisdiction over certain nationally significant offences, and Madrid’s criminal courts handle the country’s highest volume of economic crime proceedings.

Article 31 bis of the Criminal Code, reformed in 2015, establishes corporate criminal liability with an exemption regime based on the existence and genuine effectiveness of a compliance programme. For the programme to operate as a full exemption — not merely a mitigating factor — it must meet requirements that go beyond documentation: a genuinely independent supervisory body, real training for personnel, an incident-response protocol, and evidence that the programme is actually applied.

A criminal compliance programme that exists on paper but is not implemented in practice is not an exemption — it is, at best, a mitigating factor, and at worst, evidence that the company knew the risks and failed to prevent them. The Anti-Corruption Prosecutor’s Office has developed a doctrine on the elements it considers essential in a genuine criminal compliance programme, which our team applies in every programme it designs.

Employment Law in Madrid: ITSS Activity and Workforce Regulation

The Madrid Inspección de Trabajo y Seguridad Social (ITSS) is one of the most active labour inspectorates in Spain. Its priority areas in 2025-2026 include: working hours register compliance (Real Decreto-ley 8/2019 and the pending reform to a 37.5-hour maximum weekly working week), platform worker classification (Ley Rider), subcontracting chains (Art. 42 ET), temporary employment contracts (RDL 32/2021 reform), and wage gap audits (RD 902/2020). Companies that receive an ITSS inspection notification have limited time to prepare an adequate response — the quality of that response, and the documentation produced in the first 48 hours, materially influences the outcome.

Our employment team in Madrid handles the full cycle: advisory on contract drafting and employment structure, ERE and ERTE collective redundancy procedures (mandatory consultation with Social Security, SEPE notification, and negotiation with the employee representatives), individual dismissals (disciplinary or objective), SMAC representation, and defence before the Madrid Social Courts (Juzgados de lo Social de Madrid) and the Madrid Superior Court of Justice (TSJ Madrid). For large-scale workforce restructurings, we coordinate the employment advisory with the corporate and insolvency teams to ensure that all aspects of the operation — labour, corporate, and tax — are managed as a single transaction rather than parallel streams.

Sectors Most Affected in Madrid

Financial services: banks, insurance companies, asset managers, and FinTech companies face overlapping supervision from the Bank of Spain, CNMV, DGSFP, and AEPD, together with European frameworks (DORA, MiFID II, PSD2, MiCA). Madrid is home to most Spanish financial sector headquarters and the relevant regulators — full-service legal advisory in Madrid is essential for regulated financial entities.

Technology and software: Madrid tech companies — particularly those developing AI systems, data platforms, or digital services — face the EU AI Act, GDPR, LSSICE, and the Digital Services Act simultaneously. Our team advises on AI governance, data protection, technology contracts, and digital platform compliance.

Real estate and construction: the most litigated sector in Madrid Commercial Courts. Our commercial litigation team regularly handles disputes arising from development contracts, developer insolvencies, leasehold matters, and infrastructure procurement.

Retail and distribution: competition compliance (CNMC), commercial contracts (distribution, franchising, exclusive dealing), and employment law for large retail workforces are the primary legal needs of the sector.

Professional services firms: law firms, consulting groups, and accounting practices face professional liability, partnership governance, and regulatory compliance (CNMC for regulated professions, AEAT for service billing). We advise professional services groups on their own governance and dispute resolution arrangements.

Worked Example: Multi-Regulator Defence for a Madrid Technology Company

A Madrid-based SaaS company (85 employees, EUR 12 million revenue) providing workforce management software received simultaneous notifications from the AEPD (data protection complaint filed by an employee) and the ITSS (inspection focused on working hours register, remote work policy, and wage gap compliance).

BMC’s coordinated response:

• AEPD: drafted the company’s response to the AEPD information request within the 15-day deadline, demonstrating lawful basis for employee monitoring features, technical access limitations, and the internal data protection impact assessment (DPIA) already completed for the relevant processing. AEPD archived the complaint without sanctioning proceedings.
• ITSS: produced the working hours register documentation (digital system logs), updated the remote work agreement (Law 10/2021 compliance), and the wage gap audit report (RD 902/2020). Inspection closed with no infringement notice, subject to a minor recommendation to update the overtime procedure.
• Timeline: both matters resolved within 6 weeks. Total legal cost: EUR 8,500. Estimated cost if both had escalated to sanctioning proceedings and judicial review: EUR 60,000–150,000.

Common Mistakes We Fix

1. Managing legal risks through separate firms without coordination. When an employment claim also generates a data protection issue and potential criminal liability for a director, three separate advisers without a shared view produce inconsistent strategies. A single integrated team produces a coherent response that does not inadvertently damage one front while defending another.

2. Underestimating the admissibility conditions of the new MASC requirement. Companies that file claims without properly documenting the prior MASC attempt risk having their claim declared inadmissible, losing months and producing adverse costs. The MASC must be treated as a genuine process, not a formality.

3. Relying on employment contracts drafted before the 2021 labour reform. RDL 32/2021 eliminated most fixed-term contract types. Companies using contracts drafted before the reform — or applying pre-reform logic to new hires — are creating significant labour contingencies that inspection or judicial proceedings will trigger.

4. Not registering working hours. The obligation is absolute since 2019 and inspection activity has intensified. Failure to maintain the daily working hours register results in automatic infringement findings with fines of EUR 626–6,250 per infringement — and creates a rebuttable presumption of unpaid overtime in judicial proceedings.

5. Treating the criminal compliance programme as a one-time project. A compliance programme drafted in 2020 and never updated is not effective — the Supreme Court has been clear that effectiveness requires continuous monitoring, annual risk reviews, and documented training. An outdated programme is not an exemption; it may be used against the company as evidence that the governance was insufficient.

How We Work

Our Madrid legal team operates as an integrated multi-disciplinary practice, not a referral network. A new client engagement begins with a legal diagnostic session covering all active legal fronts — commercial, employment, compliance, and data protection — producing a consolidated risk map and a prioritised action plan.

For ongoing advisory, we use a single point of contact model: the relationship partner coordinates all legal areas, with specialists engaged directly as matters require. Monthly legal updates keep the client informed of regulatory developments that affect their sector. For contentious matters, the litigation team is integrated from the outset rather than taking a cold handover at the point proceedings are filed.

We are available to Madrid companies for in-person meetings at our Madrid office or remotely for clients headquartered elsewhere in Spain or internationally. Initial consultations are free and structured around the client’s specific legal risk profile rather than a generic service presentation.

Geographic Coverage from Madrid

Although headquartered in Madrid, our legal team provides advisory across Spain through coordinated remote working and a network of correspondent firms in Barcelona, Bilbao, Valencia, Seville, and the Canary Islands. For clients with multi-city operations, we manage all legal matters from the Madrid relationship and coordinate locally where proceedings require physical presence.

For international companies with Spanish operations, the Madrid office is the natural entry point: Madrid hosts all the central regulatory authorities (AEPD, AEAT, CNMC, Banco de España, CNMV) and the highest courts. Coordinating Spain strategy from a Madrid base — with centrally managed legal risk — is more efficient than splitting advisory across multiple regional offices of different firms.

Jurisdictions covered include the Madrid Community, all other Spanish autonomous communities (coordinated remotely or through correspondents), and cross-border matters involving EU Member States (through our network of European law firm correspondents) and common law jurisdictions (English law, New York law — coordinated with specialist US and UK firms when local legal opinion is required).

Key Features of Madrid’s Legal System for Businesses

Commercial courts specialisation: the Madrid Commercial Courts (Juzgados de lo Mercantil de Madrid, Nos. 1–13) are Spain’s most specialised and highest-volume commercial jurisdiction. These courts handle insolvency proceedings, intellectual property disputes, unfair competition, and corporate disputes. Judges specialise by subject matter — certain commercial courts have developed consistent and predictable doctrine on topics including debtor-in-possession finance, director liability in insolvency, and trade secret protection. Knowing which court is assigned and what precedents that court applies is a material advantage in Madrid litigation strategy.

Administrative review of AEAT decisions: tax assessments issued by the Madrid AEAT Delegations and the Central Large Taxpayer Delegation can be appealed first to the TEAR (Tribunal Económico-Administrativo Regional de Madrid) and then to the TEAC (Tribunal Económico-Administrativo Central, based in Madrid). For strategic tax litigation — challenging AEAT positions on transfer pricing, controlled foreign company rules, or VAT assessments — our tax litigation team coordinates with the commercial litigation practice to ensure that the administrative record is built correctly from the inspection phase onwards.

Regulatory sandboxes and innovation hubs: Madrid hosts CNMV’s regulatory sandbox for FinTech (Royal Decree-Law 7/2020 and Law 7/2020 on digital transformation of the financial system), the AESIA (Spanish AI Agency) national headquarters, and the Ministerio de Asuntos Económicos innovation programmes. Companies seeking to engage with regulatory sandboxes or innovation pilot programmes in the financial, AI, or digital services sectors benefit from direct access to these bodies that our Madrid presence facilitates.