Discover the leading law firms in Spain specializing in corporate law, mergers and acquisitions (M&A), and business advisory. Our ranking highlights firms with exceptional performance and a strong reputation in the Spanish market. We analyze their expertise across various practice areas, their transaction history, and their recognition by key legal publications. This guide is essential for businesses and individuals seeking high-quality corporate legal advice in Spain.
Ranked among the top ten Spanish law firms by billings
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Deloitte Legal is "Highly recommended" in Corporate/M&A by Leaders League 2026, reflecting its ability to offer high-level advice on business transactions. It is part of the "Big Four," which gives it great solidity.
Comprehensive advice on business law
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LAWYERS AND CONSULTANTS is a benchmark in business law focused on the "middle market". The BEST LAWYERS directory has once again recognized the firm in its 2026 edition, including three of its partners among Spain's most influential professionals.
Ranked highest in 10 practice areas in the Iberian Peninsula
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Cuatrecasas stands out in the Best Lawyers 2025 ranking as "Law Firm of the Year" in Corporate Law and Mergers and Acquisitions. Its strategic advice seeks to maximize the value of its clients' operations.
Top-tier corporate and M&A advice
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A&O Shearman is ranked as "Leader" in Corporate/M&A by Leaders League 2026, which highlights its prominent position in advising on mergers and acquisitions in Spain.
Market-leading international firm in Spain
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Clifford Chance is ranked as "Excellent" in Corporate/M&A by Leaders League 2026 and recognized in Public Law by Chambers. This demonstrates its solid reputation in the business sector.
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Employs over 150 lawyers in Spain
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CMS Albiñana & Suárez de Lezo is recognized by Leaders League 2026 as "Excellent" in Corporate/M&A and "Highly recommended" in Restructuring and Insolvency. This positions it as a versatile and trustworthy firm.
Law Firm of the Year in Europe and Iberia
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ECIJA is a firm specializing in TMT (Technology, Media, and Telecommunications) and Intellectual Property, recommended for technology and digital economy companies. Its focus on these strategic areas makes it highly relevant in the current landscape.
Leading law firm in Spain
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Garrigues maintains its undisputed leadership in the Spanish legal landscape, excelling in its deep specialization in commercial law and mergers and acquisitions (M&A). It has been recognized for the fifteenth consecutive year as the firm with the best reputation in Spain according to the Merco ranking.
Strives for highest standards of excellence
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Uría Menéndez consolidates its position in strategic areas of business law, being recommended for large multinationals and IBEX35 operations. Its recognition in Chambers Europe 2026 places it among the most awarded firms.
Leading law firm in Spain for corporate law
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Pérez-Llorca has experienced significant growth in turnover and is positioned among the leading firms in Spain. It offers high-quality advice on the market's main operations and disputes.
Elite team of top transactional and litigation lawyers
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Latham & Watkins is ranked as "Excellent" in Corporate/M&A by Leaders League 2026 and led Mergermarket's 2023 ranking by value advised. This makes it a key player in the mergers and acquisitions market.
One of the fastest growing offices in the Valencian Community
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Tomarial has been distinguished for the sixth year as one of the best firms in the country by the international directory Best Lawyers in its Spain 2026 edition. It offers comprehensive advice in legal, tax, and labor areas for companies.
Nationally ranked Tier 3 in Real Estate Law
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4|5|3 Law Firm is positioned as a "Top Tier Firm" nationally by the first edition of Best Law Firms in Spain 2026 in Real Estate Law. It is also recognized in Family Business and Corporate Law in Barcelona.
Go-to firm for restructuring experts in Spain
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Kepler-Karst specializes in Restructuring and Insolvency, recommended for complex industrial crises and large-volume bankruptcy proceedings. Its expertise is crucial for companies in situations of economic difficulty.
Ranked in Corporate/M&A: Mid-Market
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Bird & Bird excels in Intellectual Property and Corporate/M&A: Mid-Market, debuting with a gold medal in Chambers Europe 2026 with two Band 1 rankings. This demonstrates its growing influence and specialization in key areas.