19 Mar '26
The prestigious Chambers & Partners has published their 2026 ranking of law firms. We are proud to announce that our firm has once again received rankings in the Europe edition of Chambers.
Below you will find an overview of Ploum's rankings.
Ploum is well reputed for its planning and environment practice. The law firm is frequently seen advising on appeals against the refusal of environmental permits, and has experience handling environmental impact assessments and licensing procedures. The team is also well placed to represent clients in contentious public law matters, representing clients in administrative enforcement actions and appeal proceedings against fines.
“The team is very hands-on and pragmatic in its approach.”
“Ploum has a great, expert team which operates as one.”
“The team had a very good understanding of the issues that we faced as a company. This, added to the thorough understanding of its subject matter, made sure we had little challenge at court.”
“The lawyers are always available and quick to react, and they act as a true partner.”
Maayke Maas-Cooymans is a noteworthy practitioner who is recognised for her contentious and non-contentious environmental permitting practice. She is also well placed to assist clients with zoning plans and offshore wind permitting mandates.
“Maayke is extremely hands on and razor sharp on legal issues. She is very good at discussing with internal business clients who may be less trained in legal matters. She really gets them to understand the legal issues and holds them by the hand.”
“Maayke Maas-Cooymans has been a great partner for years.”
“Maayke has a lot of knowledge and experience dealing with media-intensive cases.”
Ploum has a solid litigation team with significant experience in professional liability claims, property damage cases, event cancellation insurance matters and product liability disputes. It frequently acts for insured parties on construction all risks mandates, as well as on matters involving environmental contamination. The law firm is also active on contentious matters in the transport sector.
“Ploum has very experienced lawyers.”
“The partners at Ploum can handle complex matters very well.”
Natalie Vloemans represents insured parties in liability, product recalls, CAR and professional indemnity disputes. She also has experience acting for insurers.
“She does well at communicating and delivering results.”
"Natalie Vloemans fights for her clients' interests and is very knowledgeable."
Ploum acts for clients from the automotive, tech, consumer goods and luxury industries on both contentious and non-contentious soft IP mandates. This ranges from the management of trade mark portfolios to brand enforcement, anti-counterfeiting issues and copyright infringement.
“The lawyers are very prompt, very thorough and detailed in the advice they give. They are creative problem-solvers.”
“The Ploum team is extremely responsive and strategically excellent. The lawyers think proactively and are always available.”
“We know that the team will deliver expert advice which is grounded in commerciality. Its focus is always on how to get the client to the place they want to be for the best interests of the business.”
“They know our business sometimes even better than we do.”
“I really feel that client service sits at the heart of everything the lawyers do and they consistently deliver.”
Willem Leppink is particularly known for his work on anti-counterfeiting and parallel trade matters, as well as advising clients on copyright and trade mark infringement cases. He additionally assists clients with the management of their IP portfolios.
“Willem Leppink has excellent legal and industry knowledge and of our business in particular.”
“He is very smart, very sharp in the trade mark field and very good at resolving conflicts.”
“Willem Leppink provides sound and reliable advice on trade mark issues.”
“Willem is a really good and clever IP lawyer.”
Sabin Tigu offers strategic assistance with trade mark and copyright infringement proceedings, as well as issues concerning design rights and trade secrets. His practice also encompasses anti-counterfeiting measures and brand management.
“Sabin Tigu really knows how to reconcile the commercial aspects with deep and comprehensive knowledge of all the legal landscape.”
“Sabin Tigu is a very sound lawyer who gives practical advice and understands our constraints.”
“Sabin Tigu is excellent and easy to communicate with.”
“What he once achieved as a top athlete, he now achieves in a spectacular way in IP law.”
Ploum has a well-regarded employment practice assisting global and Dutch clients with a range of day-to-day employment issues. The law firm assists with privacy-related work and is well versed in providing counsel with regard to terminations. It also assists with labour aspects in connection with large-scale restructuring and corporate reorganisations.
“Ploum is commercially savvy and understands the business sensitivities well. The lawyers are also equipped to handle complex matters.”
“Ploum stands out for its immediate availability, short turnaround times and practical approach.”
“The team at Ploum is very commercial, reactive and has good knowledge of working in an international environment.”
“The team demonstrates sharp thinking and is very knowledgeable and experienced. It is up to date on all recent developments and covers all aspects of employment law.”
“The Ploum team is very knowledgeable, provides excellent services and knows the industry inside out.”
Simon Tan is an experienced employment lawyer whose practice sees him advise a range of well-known clients on day-to-day employment issues, including privacy-related work. He is additionally well versed in providing counsel with regard to terminations and reorganisations.
“It is always a pleasure to work with Simon Tan. He has great experience in several jurisdictions and a commercial approach in the best interest of his clients.”
“Simon Tan is a fantastic lawyer and trusted adviser. He is always there to help and really understands the market. He delivers high-quality advice and provides very useful solutions.”
“Simon Tan is very experienced and knows what is important to you as a client.”
“Simon Tan is extremely experienced, sharp and friendly.”
Daniël van Gerven draws upon his experience to assist with a variety of employment and co-determination matters, including collective bargaining agreements, individual dismissals, incentive schemes and employee transfers.
“Daniël is very knowledgeable, quick and practical in his advice.”
“Daniël van Gerven is an outstanding lawyer. He is very pragmatic, responsive and able to advise from both a legal and commercial perspective.”
Rutger Ploum is a seasoned employment practitioner. His practice often sees him advising on restructurings and co-determination issues.
“Rutger Ploum is very responsive, engages well with the client and is truly interested in and determined to help his client solve the case.”
Ploum has a transactional team with expertise across a variety of renewable energy mandates, from heat and hydrogen projects to offshore solar technology. The law firm's scope of expertise covers M&A deals, contracts and joint ventures. The team regularly acts for both domestic and international energy companies, providing a full service through its integration with the law firm's environmental and planning, public procurement and regulatory departments.
“Ploum offers attention to detail and good relationships.”
“The Ploum team knows the business and industry inside out and is able to advise on all aspects. The lawyers are very knowledgeable and provide great service.”
“Throughout the ranks and seniority, they deliver wonderful support.”
Stephan Sluijters has a strong transactional practice in the renewable energy space. He has expertise handling cross-border acquisitions and is particularly experienced in solar, hydrogen and wind energy matters.
“Stephan Sluijters is a trusted adviser and a go-to person for energy-related work. He is very responsive and constantly delivers great advice.”
Rotterdam-based Ploum is a full-service law firm that exhibits skill advising clients on their strategic transactions in the Netherlands. The practice draws upon its expertise to assist with both the buy and sell sides of deals, as well as the corporate aspects of transactions. It counts multinational corporates, investment companies and venture capital firms among its client base, and has further experience acting for shareholders. The team operates across a number of sectors, notably energy, transport, food and medtech.
“The Ploum team adopts a pragmatic and hands-on approach. It has profound knowledge of the matters and offers quick response times.”
“The lawyers are really keen to understand what is important to clients. They are extremely client-focused in order to make sure they constantly provide value for money.”
“Ploum is our go-to law firm in the Netherlands. The team is very knowledgeable and provides excellent services. It knows the industry inside out and is able to advise on all aspects of relevance.”
“Ploum is very capable of turning complex issues into pragmatic solutions.”
“The Ploum partners are knowledgeable, well experienced and able to communicate well with all stakeholders.”
Albert Wiggers represents a client base of prominent Dutch and multinational corporates and private equity firms, demonstrating recent strength in M&A deals in the maritime, insurance and manufacturing sectors.
“Albert Wiggers is very nice to work with. He takes a pragmatic approach and brings solutions to complex matters.”
“Albert Wiggers has delivered consistent quality over many years.”
“He is always available, responds quickly and manages communications with the other parties in the process in a professional and considerate manner.”
Ploum is highly regarded for its expertise in the logistics and transport sectors, advising on issues ranging from customs compliance and excise duties to the negotiation of sale agreements and contractual litigation. It also represents clients in disputes involving the recovery and retention of goods and containers.
“Ploum is result-focused and comes with in-depth knowledge of the many practical, operational and legal aspects of the logistics industry.”
“Ploum provides realistic advice and will not pursue lengthy legal proceedings without justification. The team genuinely acts in the client’s best interest and approaches matters with that perspective.”
Jikke Biermasz is well known for her experience assisting clients with customs-related matters, including contractual negotiations and contentious work. She also advises on the recovery of goods, as well as cooperation and transactional matters.
“It is a great pleasure to work with Jikke Biermasz. She responds promptly and has a thorough understanding of the market in which we operate.”
“We value her in-depth understanding of the industry.”
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