Firm Profile > Fieldfisher > Brussels, Belgium


EU regulatory: Chemicals Tier 1

Claudio Mereu and Koen Van Maldegem head up the practice at Fieldfisher, which has strong experience advising clients drawn from the chemical industry on REACH and biocide matters. Of counsel Gerard McElwee and of counsel Maud Grunchard are noted for their expertise.

Practice head(s):

Claudio Mereu; Koen Van Maldegem

Other key lawyers:


A team of experts with an excellent knowledge of environmental and chemical law. The team is always looking to find a positive solution without becoming aggressive towards authorities and with the interest of the client as top priority‘.

Claudio Mereu is the dean of the regulatory bar in Brussels. His depth of knowledge and experience, as well as practical approach, are unparalleled‘.

Koen Van Maldegem: top lawyer with smart approaches‘.

Key clients


Centro REACH

Eastman Chemical

Carus Europe

EU Silver Task Force

Coal Chemicals Europe (CCE)


EU regulatory: Privacy and data protection Tier 1

Fieldfisher’s 'first-rate' practice has 'deep knowledge of the GDPR and privacy developments' and 'provides top-notch services'. Recent work for the 'quick, precise and very knowledgeable' team includes data breaches, data processing and GDPR compliance. Tim Van Canneyt shares leadership of the practice with the 'dedicated and committed' Olivier Proust.

Practice head(s):

Tim Van Canneyt; Olivier Proust


The privacy team at Fieldfisher is capable, diligent and personable‘.

Olivier Proust is a recognised expert in his field. He provides practical and straightforward advice on what the key issues are‘.

Olivier Proust is fantastic. He is a top legal mind in the area, sharp, diligent, hard working and incredibly personable‘.

Key clients



Just Eat

Stanley Black & Decker

Industry focus: energy Tier 2

Fieldfisher's energy practice assists with domestic and EU energy matters, and its impressive client roster, which includes EDF Luminus, 3E and National Grid, benefits from strong regulatory and energy-specific contract drafting expertise, and dispute resolution experience. The group is a key name for new entrants to the market, which it assists with the construction of power plants and advises on the implementation of the EU Emissions Trading System in Belgium. David Haverbeke heads up the practice, which includes Wouter Vandorpe.

Practice head(s):

David Haverbeke


David Haverbeke is very pleasant to work with. Thorough knowledge of the energy sector. A very good sparring partner for complex issues.

Key clients

EDF Luminus


Dupont de Nemours


Gas Natural Fenosa

Restore (Centrica Group)




Rwe Essent

Milieu Consulting Euratom




Sege Air Liquide



National Grid

RWE Generation

Industry focus: IT and telecoms Tier 2

Fieldfisher's cross-departmental IT and telecoms team provides commercial, regulatory, IP, contentious and transactional assistance to clients. The group is jointly led by Tim Van Canneyt, who advises on IT contracts, litigation and data protection and e-commerce matters; and privacy, information and security expert Olivier Proust.

Practice head(s):

Tim Van Canneyt; Olivier Proust

Industry focus: media and entertainment Tier 2

Fieldfisher handles the full spectrum of matters for its IT sector clients, with particular expertise in outsourcings, data privacy mandates, data protection work and e-commerce issues. The practice acts for start-ups and multinational companies, and leverages the firm's wider international network on cross-border matters. The team is jointly led by Tim Van Canneyt, who handles technology contract negotiations and litigation, and privacy, data protection and data security expert Olivier Proust.

Practice head(s):

Tim Van Canneyt; Olivier Proust

Intellectual property Tier 2

Stijn Debaene leads Fieldfisher's 'very pragmatic' team. Contentious work has featured prominently in the group's recent caseload, including trade mark, patent and design infringement issues. Advisory work is another area of instruction. Hakim Haouideg ('an excellent lawyer') is the other name to note.

Practice head(s):

Stijn Debaene

Other key lawyers:

Key clients

The European Commission



Getty Images


Studio 100

Commercial, corporate and M&A Tier 3

Fieldfisher's corporate team 'combines the broad scope and professionalism of a leading international firm with in-depth expertise of the local environment and culture applied to transactions'. The group has seen an increase in technology and energy sector work, for which particular names to note include practice head Louis-François du Castillon (who attracts praise for his 'strong leadership') and Thomas Lenne, who has the ability to make 'even the toughest deals stress-free', respectively. The group also counts energy, chemical and finance companies on its client roster. Marie Evrard is another name to note; she provides 'outstanding support' to her clients in domestic and cross-border deals, with particularly experience assisting French and US-based companies.

Practice head(s):

Louis-François du Castillon


They help us in very complex deal-making and has been able to deliver great results.

Combines the broad scope and professionalism of a leading international firm with an in depth expertise of the local environment and culture applied to M&A, capital markets and private equity transactions

Louis-François du Castillon has been extremely available (even at night), always looking for good solutions, and determined to get a closing.

Louis-Francois du Castillon is always listening and finds the best solution in a constructive and positive mindset. He’s also very transparent on what he can do and when he needs support from other professional on other legal topics, such as IP. Excellent relationship.

They are highly responsive, reliable, extremely pragmatic, cost-efficient and cost-reliant.

Thomas Lenné is a genuine pleasure to work with. He is a shrewd negotiator and has the ability to make even the most difficult transactions stress free.

The team is unrivalled in its dedication to clients, they truly want to help you achieve the best outcome.

Thomas Lenné really understands what we need as a client and has the ability to provide solutions to the most complex problems.

Key clients

Daikin Industries

AGC Glass Europe

Cementir Group

Catisa (Cyklop, Mainetti, etc.)

Moët Hennessy



GroenlandGroup (PHW group)

Serviceplan Group International

IPTE Factory Automation


Rynda Property Investors

Groupe Beaumanoir


Parts Holding Europe

OneAston Pte Ltd

Customs, trade, WTO and anti-dumping Tier 3

Laurent Ruessmann heads the department at Fieldfisher, which has an excellent reputation for acting for EU producer clients in trade defence matters. Customs matters, WTO disputes, export controls and economic sanctions are other key areas of instruction. Jochen Beck is a name to note.

Practice head(s):

Laurent Ruessmann

Other key lawyers:

Key clients

Confederation of European Paper Industries

European Bicycle Manufacturers Association

Dispute resolution Tier 3

At Fieldfisher, practice head Jean-François Germain is leading the advice to real estate company Vizzion Europe on proceedings relating to corporate litigation, with a focus on shareholders' disputes. Maxime Berlingin is noted for his expertise in handling corporate disputes, and is also adept at arbitration.

Practice head(s):

Jean-François Germain

Other key lawyers:

Key clients


Lafarge Holcim

AG Real Estate

Eastman Chemical

Vizzion Europe


Employment Tier 3

Fieldfisher's 'practical' employment team has established expertise in handling international employment matters; recent work includes assisting clients with business migration and employee benefits issues. The 'always available' Stefan Nerinckx leads the team; Anne Kamp and 'reliable' senior associate Tim Perdieus are key contacts.

Practice head(s):

Stefan Nerinckx

Other key lawyers:


Availability, expertise, transparency and innovation are some of the qualities of Stefan Nerinckx’s team‘.

Stefan Nerinckx is pragmatic and clients like dealing with him, because of his knowledge, commitment and problem solving capabilities‘.

Key clients


Blount International

Griffith Foods

Fieldfisher (Belgium) LLP

Fieldfisher is a European law firm with market leading practices in many of the world’s most dynamic sectors. We are an exciting, forward-thinking organisation with a particular focus on technology, life sciences, finance & financial services, energy & natural resources, and media.

Fieldfisher can trace its roots back almost two centuries. We have undergone a number of mergers, the most significant of which have happened within living memory. Many of the partners and staff from the legacy firms that went on to form Fieldfisher are still working at the firm today. Fieldfisher is now a multinational law firm headquartered in Riverbank House, London.

Our network has more than 1,450 people working across 24 offices providing highly commercial advice based on an in-depth understanding of our clients’ needs.

We operate across our offices in Amsterdam, Barcelona, Beijing, Belfast, Birmingham, Bologna, Brussels, Düsseldorf, Frankfurt, Guangzhou, Hamburg, London, Luxembourg, Madrid, Manchester, Milan, Munich, Paris, Rome, Turin, Venice, Silicon Valley, and Shanghai.

Clients choose to work with us because we deliver commercial, pragmatic and innovative solutions through our exceptional legal expertise and experience, on time and on budget.

Our Brussels office is full service and gathers 42 lawyers (including 19 partners) who specialise in the major practice areas of business law. All our lawyers are registered at the Brussels Bar (French or Dutch-speaking order and often, additionally, at other Bars in Europe or beyond) and practice at least Belgian law.

The Fieldfisher office in Brussels is structured in different highly specialized practices. These departments work in synergy to provide the highest level of specialization to the most competitive financial conditions: Corporate and Mergers & Acquisitions, Civil and commercial law and litigation, Competition, Data protection and privacy, Employment law, Energy law, Environmental law, EU Regulatory law, Intellectual property law, International Trade, Information Technology.

Department Name Email Telephone
EU Regulatory; Joint Managing Partner Claudio Mereu +32 2 742 70 60
Intellectual Property; Joint Managing Partner Stijn Debaene +32 2 742 70 88
International trade Laurent Ruessmann +32 2 742 70 61
Technology, Outsourcing and Privacy Tim Van Canneyt +32 2 742 70 36
Technology, Outsourcing and Privacy Olivier Proust +32 2 742 70 15
Corporate and M&A Thomas Lenné +32 2 742 70 53
International trade Jochen Beck +32 2 742 70 43
Competition Tom S. Pick +32 2 742 70 50
Employment Anne Kamp +32 2 742 70 32
Employment Stefan Nerinckx +32 2 742 70 57
Commercial law and litigation Jean-François Germain +32 2 742 70 33
Commercial law and litigation Maxime Berlingin +32 2 742 70 37
Corporate and M&A Marie Evrard +32 2 742 70 23
Corporate and M&A Louis-François du Castillon +32 2 742 70 45
Energy David Haverbeke +32 2 742 70 13
EU Regulatory Koen Van Maldegem +32 2 742 70 00
Intellectual Property Hakim Haouideg +32 2 742 70 91
EU Regulatory Peter Sellar +32 2 742 70 00
Commercial law and litigation Eric Cusas +32 2 742 70 28
Photo Name Position Profile
Mr Jochen Beck  photo Mr Jochen Beck
Mr Maxime Berlingin  photo Mr Maxime Berlingin
Mr Eric Cusas  photo Mr Eric Cusas
Mr Stijn Debaene  photo Mr Stijn Debaene
Ms Marie Evrard  photo Ms Marie Evrard
Mr Jean-François Germain  photo Mr Jean-François Germain
Ms Maud Grunchard  photo Ms Maud Grunchard
Mr Hakim Haouideg  photo Mr Hakim Haouideg
Mr David Haverbeke  photo Mr David Haverbeke
Ms Anne Kamp  photo Ms Anne Kamp
Mr Thomas Lenne  photo Mr Thomas Lenne
Mr Claudio Mereu  photo Mr Claudio Mereu
Mr Stefan Nerinckx  photo Mr Stefan Nerinckx
Mr Tim Perdieus  photo Mr Tim Perdieus
Mr Tom Pick  photo Mr Tom Pick
Mr Olivier Proust  photo Mr Olivier Proust
Mr Laurent Ruessmann  photo Mr Laurent Ruessmann
Mr Tim Van Canneyt  photo Mr Tim Van Canneyt
Mr Koen Van Maldegem  photo Mr Koen Van Maldegem
Mr Wouter Vandorpe  photo Mr Wouter Vandorpe
Mr Louis-François du Castillon  photo Mr Louis-François du Castillon
Partners : 18
Lawyers (non-partners) : 42
Staff : 23

At Fieldfisher we are committed to creating an inclusive workplace where everyone feels valued, motivated and able to be themselves. We view difference as a strength and a key part of our strategy in relation to attracting, keeping and progressing the best people.

We deliver cutting-edge advice to clients across the globe. This means it is vital that our lawyers and business services staff understand and reflect different backgrounds, perspectives, cultures, experience, nationality, age, gender, sexual orientation, language, disability, and other characteristics. For the firm’s diversity statistics, please click here.

In 2016 we achieved EY’s National Equality Standard accreditation. This is a change management tool that helps us track and continually improve our approach to Diversity and Inclusion.

Our Inclusiveness and Diversity (“I&D”) Strategy is firmly rooted in Fieldfisher’s overall business strategy; we very much view I&D as being core to the business and we aim to integrate it into all our systems and processes. Our I&D Strategy is divided into two major components: I&D DNA and Balanced Talent Pipeline.

I&D DNA focuses on our inclusive and innovative programme of internal, client and community activities. These are generally visible, high-profile activities in which all our people can get involved. The main strands of I&D DNA include:

  • Inclusive Recruitment. This includes our Diversity Access Scheme with the University of Law and our Career Focus Partnership with Queen Mary’s University London
  • Social Mobility and STEM-focused Outreach
  • Clients & Networks
  • Mental Resilience Programme.

Balanced Talent Pipeline focuses on our internal people systems and processes, ensuring a level playing field with respect to development and progression for everyone within the firm.

Fieldfisher (Belgium) LLP is also a founding member of the Legal Diversity & Inclusion Alliance (LDIA) which launched in Brussels on 31 January 2019, a cross law firms alliance focusing on diversity and inclusion and aiming at exchanging good practices on diversity and inclusion, raising awareness of non-discrimination and diversity issues by combining efforts in organising events, workshops, training sessions, etc., working to create a diverse and inclusive work environment.