The ‘highly competent’ competition and antitrust litigation team at Ramón y Cajal Abogados has considerable experience advising telecoms, banking and finance, and energy companies on merger control, behavioural investigations and sanctioning proceedings. Jointly steering the practice are Javier Salinas and Fernando Tallón, both of whom are experts in antitrust litigation. Casado is also adept at handling merger control, sanctioning proceedings, and vertical agreements, while Martínez is sought after for his prowess in damages claims and infringement proceedings. The team was recently strengthened by the addition of competition law specialist Alfredo Gómez Álvarez, who joined from KPMG Abogados, Spain in February 2026.

Turned to by multinational blue-chip companies for its ‘strong relationships with the regulator’ and ‘proactive approach’, Clifford Chance‘s antitrust practice remains a powerhouse in the Spanish market. The group has a comprehensive EU and competition offering spanning merger control, anticompetitive agreements, abuse of dominance, compliance issues, and antitrust investigations. At the helm of the department is Miguel Odriozola, who specialises in restrictive practices and merger control, with a particular focus on the telecoms, energy, and IT sectors. He is supported by Begoña Barrantes, who stands out for her experience in antitrust investigations, State aid matters, and EU Foreign Subsidies regulation. On the infringement proceedings front, Belén Irissarry is the name to note, while Ana Latorre and Diego Doménech are well-equipped to handle merger control proceedings.

Praised by clients for its combination of ‘rigorous technical expertise with a highly practical and strategic approach’, Garrigues is regularly sought after by household names from the telecoms, banking and finance, and aviation sectors, among others, for assistance with complex cross-border EU and competition mandates. The team has considerable experience advising on merger control, abuse of dominance cases, and cartel investigations, as well as antitrust litigation, FDI and FSR issues, and infringement proceedings. At the helm of the group is international merger control expert Susana Cabrera Zaragoza, who is a key point of contact for investment funds. The department also includes Oriol Armengol, who excels in cartel and abuse of dominance cases; Konstantin Jörgens, who is proficient in merger control and compliance schemes; and Fernando Las Navas, who focuses on infringement proceedings and merger control. Claudia López del Villar is another key practitioner.

Linklaters has a robust offering which includes merger control, cartel investigations, and abuse of dominance matters, as well as competition damages litigation and compliance. With full-service capabilities, the group is instructed by a growing client roster which consists of notable multinational companies from the banking and finance, technology, and consumer goods sectors, among others. Fredrik Löwhagen spearheads the practice and is highly active in domestic and international merger control, alongside EU State aid matters. He has a particular focus on the financial services, energy, and healthcare industries. On the antitrust proceedings front, Miguel Andreu stands out for his considerable experience representing clients before the Spanish Competition Authorities and the European Commission. The team also benefits from the aptitude of compliance expert Laura Pinilla and Diana Martínez, who is active in merger control filings and infringement proceedings.

Pérez-Llorca maintains a strong position in the Spanish market, regularly advising impressive banking, insurance, and healthcare companies, among other players, on high-profile EU and competition mandates. The team, praised by clients for its ‘excellent communication and excellent case analysis’, is well positioned to handle merger control, abuse of dominance and cartel investigations, and antitrust litigation, as well as sanctioning proceedings and compliance. Juan Jiménez-Laiglesia jointly steers the practice alongside Juan Rodríguez Cárcamo and stands out for his breadth of expertise, which spans transaction filings, antitrust litigation, and State aid matters. Cárcamo is the main point of contact for all EU-related matters, holding considerable experience acting before the ECJ, the European Commission, and the European Central Bank. The group also benefits from the aptitude of litigation expert Antoni Frigola; Jaime de Blas, a name to note for restrictive agreements, State aid and sanctioning proceedings; and damages litigation specialist Jorge Masía.

The ‘excellent’ EU and competition group at Uría Menéndez is a reference in the market, turned to by notable blue-chip businesses seeking advice on high-profile, complex mandates both domestically and internationally. Key practice strengths include antitrust litigation, behavioural matters, and merger control, and the department is active across a variety of industry sectors such as automotive, banking and finance, and sports and entertainment. Antonio Guerra Fernandez heads up the team and specialises in cartel investigations, damages claims, and merger control. He is supported by Alfonso Gutiérrez, who regularly assists with cross-border mergers. The department also features Patricia Vidal, who excels in merger control and competition damages litigation, and Tomás Arranz, who assists with merger control, cartel investigations and gun-jumping matters. Other indispensable practitioners include Jokin Beltrán de Lubiano, who advises on transactional and behavioural mandates, and Alberto Pérez, a contact for pharma, telecoms, defence and sports clients.

Drawing on the firm’s wider international presence, the competition and European law practice at A&O Shearman is well equipped to handle a variety of complex, cross-border mandates ranging from merger control and infringement proceedings to settlement agreements and damages litigation. The team is instructed by an expanding client roster, consisting of household names from the energy, food and beverage, and financial services sectors, among others. Steering the department is Antonio Martínez, an expert in merger control proceedings, cartel and vertical cases, and competition damages claims. Merger filings and State aid expert Jaime Rodríguez is another name to note, alongside behavioural specialist Enrique Ferrer,  Anabel Blasco, who specialises in cartel proceedings, and Andrea Salgado, who focuses on compliance.

Cuatrecasas is home to a robust antitrust, competition, and foreign investment team, capable of advising on merger filings, enforcement proceedings, and investigations, as well as dawn raids, abuse of dominance cases, and sanctioning proceedings. Its breadth of practice and proven experience in handling high-profile, multijurisdictional mandates continue to attract a diverse client base, including companies in the pharmaceutical, technology, and energy sectors, among others. Enrique Carrera, who joined from Freshfields in September 2024, heads up the department and brings with him considerable expertise in FDI and FSR matters, cartel investigations, and merger control. He is supported by Irene Moreno-Tapia, who stands out for her merger control, dawn raids, and litigation prowess. Other key practitioners include Cristina Vila and María López Ridruejo, the latter of whom advises on behavioural and compliance matters.

Spearheaded by Íñigo Igartua, Gómez-Acebo & Pombo‘s competition and EU law department is sought after by market-leading life sciences, energy, and technology companies, among other players, to assist with high-profile matters, both domestically and internationally. The group has strengths across the contentious, non-contentious, and transactional fronts, including merger control, private enforcement, and investigations, as well as compliance, State aid issues, and litigation. Igartua stands out in particular for his breadth of expertise in cartels, vertical restraints, merger control, damages litigation and leniency applications. Andrew Ward is an expert on FDI, cartel investigations, and State aid matters, while Eduardo Gómez de la Cruz is the main point of contact for technology and telecoms clients.

With a robust antitrust and competition offering that covers domestic and cross-border merger control, behavioural matters, and antitrust litigation, Latham & Watkins LLP is a trusted adviser to blue-chip companies from an array of sectors, such as energy, technology, and telecoms. Leveraging the firm’s international presence, the team stands out in particular for its considerable experience assisting with multijurisdictional mandates and is praised by clients for its ‘strong international communication’. The ‘excellent’ José María Jiménez-Laiglesia heads up the practice and regularly advises on cartel investigations, abuse of dominance cases, and State aid, as well as merger control and FDI issues. He is supported by Carlos Betoret, who is skilled in conduct investigations prompted by the CNMC and global merger clearances.

Praised by clients for its ‘strategic management skills when dealing with authorities and its deep knowledge of the regulated sectors’, MLAB Abogados, SLP is a solid choice for multinational companies seeking assistance with complex, cross-border EU and competition mandates. Jointly steered by Rafael Allendesalazar and Helmut Brokelmann, the practice has extensive experience advising leading clients from a broad range of industries, including sports and entertainment, technology, and food and beverage, on cartels, vertical agreements, and abuse of dominance cases, as well as merger control, damages litigation, and regulatory issues. Allendesalazar is recognised for his prowess acting before the competition authorities, the EU and Spanish courts and tribunals, while Brokelmann is sought after for his expertise in administrative proceedings and litigation. Mariarosaria Ganino and Alfonso Rincón are other key practitioners noted for their experience in restrictive agreements and abuse of dominant position cases.

Sought after for its ‘ability to find innovative and creative solutions’, Ashurst LLP has a solid track record assisting notable sports and entertainment, technology, and banking and finance clients, among others, on high-profile matters at both domestic and international levels. The team is particularly strong in behavioural work, ranging from abuse of dominance and bid rigging to restrictive conduct and cartels, although it is also adept at handling merger control proceedings, damages litigation, and regulatory compliance. At the helm of the department is Rafael Baena, who stands out for his expertise in merger control, abuse of dominance and cartel cases. Javier Torrecilla offers support in merger control, antitrust investigations and State aid issues.

Herbert Smith Freehills Kramer LLP has a comprehensive EU and competition practice, which offers support in cartel investigations, leniency applications, merger control, antitrust litigation, and sanctioning proceedings. The group is turned to by a growing client roster, which is made up of notable companies active across a variety of sectors, including technology, retail, and insurance. Practice head Henar González Durántez is praised by clients for her ‘extraordinary ability to understand the complex technical and regulatory aspects’ of dawn raids, cartels, and investigations. She is also well-versed in merger control and compliance issues, with a particular focus on the energy, digital markets, and consumer products sectors. Pilar Carrasco is active in merger control and antitrust investigations.

The EU and competition group at Baker McKenzie has a comprehensive offering which encompasses infringement proceedings, antitrust litigation, merger control, regulatory compliance, FDI issues, and horizontal agreements. Its practice spans a broad range of sectors, with the team consistently advising multinational companies in energy, logistics, and food and beverage, as well as in the hospitality, consumer products, and pharmaceutical industries. Co-leading the department are Paloma Martínez-Lage and Júlia Samsó, both of whom are adept at handling merger control proceedings, litigation, and compliance. The team also benefits from the aptitude of Javier Menor and Laura González.

Noted for its ‘unique commercial experience and approach’, Callol, Coca & Asociados is a popular destination for media, sports, and entertainment, energy, and financial services businesses seeking assistance with high-profile merger control proceedings, antitrust litigation, and conduct investigations. The ‘outstanding’ Pedro Callol is the main point of contact in the team and is regularly turned to by TMT clients to advise on State aid matters, distribution issues, and litigation, as well as merger control. Other key practitioners in the group include Jorge Manzarbeitia and Manuel Cañadas, both of whom bring expertise in administrative and judicial proceedings and antitrust litigation.

With key strengths in merger control, antitrust litigation, and conduct investigations, DLA Piper is well equipped to handle the full scope of EU and competition matters. The group continues to attract instructions from a high-profile client base, which comprises household names from the banking and finance, media and entertainment, and technology sectors, to name a few. At the helm of the practice is Joaquín Hervada, who advises on cartel investigations, merger control, and infringement proceedings. Rafael Maldonado is the name to note for regulatory issues, while Miguel Higuero is well-regarded for his experience in cross-border matters.

Offering assistance with merger control, behavioural investigations, and regulatory compliance, Hogan Lovells Spain is well placed to assist with the full array of EU and competition matters. Drawing on the firm’s wider international presence, the team is capable of handling complex, cross-border mandates and is sought after by blue-chip companies from a variety of sectors, such as technology, insurance, and pharma, to name a few. Casto González-Páramo spearheads the department and brings considerable experience acting before the CNMC and EU courts in merger control proceedings, abuse of dominance cases, and cartel investigations. Raquel Fernández Menéndez is another contact for merger control, State aid, and antitrust investigations.

Marimón Abogados' competition and EU law team is skilled at advising on competition litigation, merger control proceedings, and abuse of dominance and cartel investigations, and also demonstrates proficiency in settlement agreements, damages claims, and regulatory issues. The group has particular expertise acting for notable clients from the food and beverage, pharma, cosmetics, and transport sectors. Diego Crespo heads up the Madrid-based team and stands out for his scope of practice, which spans merger filings, multijurisdictional cartel proceedings, and vertical and horizontal agreements. Yolanda Martínez leads the department in Barcelona and specialises in litigation and regulatory matters.

CMS Albiñana y Suárez de Lezo, ‘characterised by its in-depth regulatory knowledge and its ability to combine legal analysis with business acumen’, has a robust EU and competition offering which spans merger control proceedings, conduct investigations, and day-to-day advisory services. The team, which is relied upon by notable energy, consumer goods, and food and beverage companies, is headed up by Carlos Vérgez, a key contact for horizontal and vertical agreements, merger control, State aid, and compliance programmes. Aida Oviedo offers support in merger control, sanctioning proceedings and appeals before Spanish and EU courts.

Ecija‘s EU and competition law offering has been bolstered by the arrival of Rafael Piqueras, who joined from Deloitte in March 2025, bringing with him extensive experience in merger control proceedings, cartel investigations, and State aid matters, as well as distribution agreements, abuse of dominance cases, and damages claims. He joins a well-established team with expertise in acting across various sectors, including TMT, automotive, and media and entertainment. Alongside Piqueras, Patricia Liñán is a key asset to the group, specialising in cross-border merger filings, compliance programmes, and competition infringements.

With a growing client base, Eversheds Sutherland is sought after for its broad public and private enforcement capabilities, which encompass cartel defence, damages litigation, and merger control proceedings, as well as anticompetitive agreements, FDI matters, and abuse of dominance cases. The group is led by the ‘highly focused’ Crisanto Pérez-Abad, who regularly acts before the CNMC and the European Commission in merger filings, cartel and abuse of dominance proceedings, and investigations. He has particular expertise in the transport and pharma sectors, and is supported by María Rodríguez, who is adept in merger control matters.

Jones Day‘s antitrust and competition law team is experienced in merger control proceedings, FDI issues, abuse of dominance and cartel investigations, and leniency applications. The firm’s broader international footprint allows the group to advise on both domestic and cross-border matters, complementing a multinational client base predominantly composed of energy and infrastructure companies. Jointly steering the practice areRaimundo Ortega, who regularly assists with FDI filings, phase 2 transactions, and leniency applications, and Marta Delgado Echevarria, who specialises in cartel cases, abuse of dominance, and merger control.

Noted for its ‘deep technical expertise coupled with a strong understanding of its clients’ businesses’, MVA ASOCIADOS is regularly turned to by energy, healthcare, and manufacturing companies, among others, for advice on merger control proceedings, conduct investigations, and antitrust litigation. The group is also adept at handling regulatory compliance, horizontal and vertical agreements, and day-to-day competition and EU law matters. At the helm of the practice is Eduardo Abril, who specialises in cartel investigations, merger filings, and State aid mandates, with a particular focus on the energy sector.

ONTIER‘s antitrust and competition practice demonstrates expertise in a wide range of matters, including cartel investigations, antitrust litigation, abuse of dominance cases, merger control and FDI issues. The group is also experienced in acting for both domestic and multinational companies from various industry sectors, including media and entertainment, automotive, and consumer goods. Exhibiting skills across the full gamut of mandates is department head Francisco Cantos, who is noted for his cross-border prowess. The team also benefits from the aptitude of Inés Pajares, who assists with dawn raids and leniency applications.

Regula has established itself as an emerging antitrust and competition boutique in the Spanish market, sought after by notable blue-chip companies to handle antitrust damages claims, merger control, settlement agreements, and infringement proceedings. ‘Strategic thinker’ and founding partner Pedro Suárez oversees the team and has considerable experience representing domestic and multinational clients from regulated sectors, including energy, financial services, and food and beverage, in infringement proceedings. Pablo González is another name to note for merger control, FDI issues, antitrust compliance and judicial appeals.

Praised by clients for its ‘extensive knowledge and practical experience’, RocaJunyent is a strong choice for construction, logistics, and infrastructure companies seeking assistance with conduct investigations, merger control proceedings, and damages litigation. Gerard Pérez leads the team and brings insight into competition regulations, acting as a non-governmental adviser to the CNMC. He specialises in anticompetitive practices, merger filings, and litigation, as well as regulatory compliance. Elena Galán is another key member of the department.

White & Case LLP is adept at handling domestic and cross-border merger control proceedings, conduct investigations, and antitrust litigation, with a focus on regulated sectors, including energy, digital services, and consumer goods. At the helm of the practice is José Antonio de la Calle, who regularly leads on cartel investigations, follow-on litigation, and multijurisdictional merger control. The department also benefits from the aptitude of Sanna Orkan, who specialises in appeals against CNMC decisions and unfair competition complaints.