Under the leadership of IP specialist Manon Rieger-Jansen, Bird & Bird advises clients on the protection and enforcement of their IP rights worldwide. Leading figures in the team include Tjibbe Douma and Carlos van Staveren, who focus on technology-related patent matters and have extensive experience in domestic and multi-jurisdictional patent disputes. Peter van Gemert handles complex patent and trade secret litigation before the Dutch courts and the Unified Patent Court, particularly in the telecoms and technology sectors. Marc van Wijngaarden advises on patents, trade secrets, and other IP rights, with recognised expertise in cross-border European patent litigation, especially within the life sciences and chemical industries. Patent litigator Frodo Ferro joined the practice in April 2025, while longstanding IP expert Wouter Pors departed the firm in May 2025.

Brinkhof is a leading force in international patent disputes, particularly before the Unified Patent Court. The team is led by six experienced partners: Richard Ebbink, who focuses on European patent litigation before the Courts of The Hague; Mark van Gardingen, who specialises in national and cross-border patent litigation and trade secrets; Daan de Lange, who handles patent licensing disputes; Koen Bijvank, who is active in high-end oppositions, particularly in the chemistry, pharmaceuticals, and life sciences spaces; Rien Broekstra, who offers experience in patent cases involving complex technologies; and Jan Pot, who leads the firm’s Supreme Court litigation practice. Isabelle Kleinveld is praised for her ‘professionalism, speed, and grasp of complex patent issues’. Paul Marcelis left the firm in September 2025.

Freshfields LLP handles both the enforcement and defence of patent rights, managing large, sophisticated patent portfolios and providing strategic guidance across IP litigation matters. The group is chaired by the ‘great strategist’ Rutger Kleemans, who leads on Dutch and pan-European patent litigation, with a strong emphasis on life sciences and healthcare innovation. Jelle Drok stands out in patent technology litigation and mass claims, regularly appearing before the Courts of The Hague, the Unified Patent Court, and the European Patent Office. Ruben Laddé is sought-after for his expertise throughout the lifecycle of patent litigation. Transactional IP lawyer Tilly Berkhout joined the team in July 2025, while Allard van Duijn departed the firm in August.

International IP boutique HOYNG ROKH MONEGIER offers significant patent expertise with a core focus on high-stakes litigation. Heading the practice is Bart van den Broek, who is ‘excellent and very knowledgeable’ in domestic and cross-border patent cases, particularly in the fields of electronics, telecoms, and IT. Other key team members include cross-sector patent litigator Theo Blomme; Willem Hoyng, who brings experience before the Supreme Court,  the Court of Justice of the European Union, and the European Patent Office; Peter van Schijndel, who specialises in patent litigation in the pharmaceutical, biotech, and medical devices industries; and the ‘strong’ Akiva Friedmann. The practice was bolstered in 2025 with the arrival of Andrew Lin, who covers all aspects of patents, including prosecution and litigation.

De Brauw Blackstone Westbroek advises on litigation, licensing, and other IP-driven transactions within the life sciences, technology, engineering, and chemicals sectors. The group is co-chaired by Anne Marie Verschuur, whose wide-ranging practice spans patent infringement and invalidity actions, trade secret disputes, and other technology-related conflicts. Verschuur is joined by Tobias Cohen Jehoram, who plays a leading role in influential patent cases before all levels of the Dutch courts, including the Supreme Court, as well as before the Court of Justice of the European Union. Bertrand ter Woort provides support to the team.

Hogan Lovells International LLP is highly sought-after in cross-border patent litigation and strategy matters. With experience before the Dutch courts, the EPO, and the Unified Patent Court, the team manages the full lifecycle of patent matters, from enforcement and defence to licensing and portfolio strategy. Ruud van der Velden, a cross-border patent litigator with a ‘strategic mindset’ in complex high-tech, pharmaceutical, and life sciences disputes, co-heads the team alongside Gertjan Kuipers, a patent and technology trial specialist with deep expertise in telecom, mechanical, and chemical patent matters. Dirk-Jan Ridderinkhof is a further key team member.

Taylor Wessing boasts deep proficiency across all areas of patent law, catering to clients in sectors including life sciences, technology, telecoms, consumer and retail. The department is co-led by Wim Maas, who handles high-stakes patent litigation and IP seizures across the electronics, mechanical engineering, biotechnology, and pharmaceuticals segments. Also co-heading the team is Bas Berghuis van Woortman, who joined in August 2025 and specialises in patent and technology-focused IP litigation, while also advising on licensing, prosecution strategy, R&D agreements, and trade secret protection. Also in August 2025, the team hired Sebastien Versaevel and Diptanil Debbarma, followed by Daisy Termeulen in December 2025. Eelco Bergsma and Charlotte Garnitsch departed the firm.

A&O Shearman fields a diverse IP practice, encompassing enforcement, portfolio management, disputes, and transactional patent mandates. Heading the team is seasoned IP litigator Frits Gerritzen, who is predominantly focused on patent disputes in the fields of medical equipment, pharmaceuticals, and antibodies. Gerritzen also advises on R&D agreements, licensing agreements, and the structuring of IP portfolios. Sara Swinkels is a further key contact. Marleen van Putten departed from the firm in April 2025.

The ‘business-oriented and flexible’ patents team at BarentsKrans is well-positioned provide strategic advice and litigation support to large corporate clients operating in technology-intensive industries. A key contact is department head Jaap Bremer, who is involved in high-tech, pharma, biotech, and food innovation patent disputes, as well as in the negotiation and conclusion of license, cooperation, development, and distribution agreements. Marc Elshof and Jarieke Timmerman are further key team members.

Pinsent Masons LLP patent litigation practice advises on strategic IP matters and represents clients in cross-border patent disputes. The team is led by longstanding multijurisdictional patent litigation expert Judith Krens and Arjan Reijns, who is likewise well-versed in medical device, pharmaceutical, and chemicals disputes. The firm regularly represents clients across the life sciences, technology, and mechanical engineering sectors in litigation, enforcement, and advisory work before national courts and the Unified Patent Court.

Simmons & Simmons’ patent practice stands out for its ‘problem ownership and professional rigour’ across litigation, prosecution, licensing, and transactional IP matters. Following Bas Berghuis van Woortman‘s departure in August 2025, the practice is now led by Oscar Lamme, who specialises in international patent technology-related litigation for clients in the telecoms, electronics, biotechnology, and pharmaceutical sectors. Machteld Hiemstra is a key contact on regulated sector patents issues. Sebastien Versaevel, Johan Renes, and Diptanil Debbarma also left the firm.

CMS offers a ‘dedicated’ IP litigation practice. Team head Rogier de Vrey has extensive experience in patent litigation, unfair competition, and trade secrets across the technology, food, and life sciences sectors. De Vrey is supported by Yasar Celebi, who is active across FRAND licensing, trade secrets, and procedural IP matters. Further key contacts include Marcoline van der Dussen and Hannah de Leeuw.

Drawing on its wider international network, DLA Piper maintains a strong track record in patent litigation mandates. Practice head Alexander Tsoutsanis leverages his deep expertise to coordinate multi-jurisdictional enforcement matters, particularly concerning patents, plant variety rights, and trade secrets. A further key contact is seasoned IP litigator Paul Reeskamp, who is highly regarded for his work in both patent enforcement and strategic matters.

Led by IT and IP expert Thomas de Weerd, Houthoff‘s patents practice covers a broad range of technologies, including agri-tech, pharmaceuticals, medical devices, and chemicals. The team is supported by Fleur Tuinzing-Westerhuis, a notable patent litigator with deep expertise in life sciences and plant variety rights. Tuinzing-Westerhuis regularly leads complex multi-jurisdictional IP disputes and is highly sought-after for her ‘deep knowledge’ in the space.

The patent and technology practice at Kennedy Van der Laan acts for prominent clients in the life sciences, telecoms, and technology sectors on both contentious and transactional IP matters. The team is led by Maarten Schut and Joran Spauwen, who provide representation in patent litigation and advise clients on R&D collaborations and licensing and technology transfer arrangements.

La Gro‘s patents practice is co-chaired by Benjamin Niemeijer, a seasoned litigator with deep expertise in patent disputes and strategic advisory work within the pharmaceutical and life sciences sectors. Fellow co-head and litigator Marleen van den Horst is renowned for handling cross-border disputes spanning the life sciences, telecoms, engineering, and chemistry sectors, with particular strength in UPC proceedings and FRAND licensing matters. Iris Arts provides key support to the team.

Oxon IP‘s core strengths include full patent revocations, successful patent defences, and meaningful limits on competitor rights for international clients across the consumer goods, automotive, biotechnology, nuclear, paper, and chemicals sectors. The practice is led by Leythem Wall, a specialist in high-stakes EPO oppositions and appeals.