Simmons & Simmons > Brussels, Belgium > Firm Profile

Simmons & Simmons

Belgium > EU regulatory: Pharma, medical devices and biotech Tier 2

The healthcare and life sciences team at Simmons & Simmons is differentiated by its niche expertise in blood-based medicines, in vitro diagnostic medical devices, biopharmaceutical products, and advanced therapy products. Olivier Mignolet oversees the firm's Brussels office, and regularly leads on complex regulatory mandates along with Annabelle Bruyndonckx; between them, the duo cover the gamut of matters, from research and development, to production, to marketing authorisation.

Practice head(s):

Olivier Mignolet; Annabelle Bruyndonckx

Key clients

Align Technology Switzerland GmbH

AlloVir, Inc.

Andocor NV

Coloplast NV

GlaxoSmithKline, Inc. (Global Health)

Samsung Bioepis Co., Ltd.

The Oncidium Foundation

Stallergenes Greer, Inc.

Vitaflo France SARL

Belgium > Industry focus: Healthcare and life sciences Tier 2

Exhibiting 'outstanding' proficiency in handling regulatory matters concerning medical devices and biopharmaceutical products, Simmons & Simmons is noted for advising a notable client base which includes GlaxoSmithKline, Haleon, and Sanofi. The 'very balanced and effective' Olivier Mignolet and Annabelle Bruyndonckx lead the team. Mignolet has vast knowledge of regulatory issues and commercial litigation, while Bruyndonckx maintains a medtech and digital healthcare-focused practice, often advising global biotech and pharmaceutical companies on qualification, product liability, and marketing authorisation issues, supported by Nele Jonckers, who has a great deal of knowledge in handling cross-border compliance matters. Alexander Wenzel joined the practice from Cooley LLP, contributing his deep experience in advising biotech manufacturers.

Practice head(s):

Olivier Mignolet; Annabelle Bruyndonckx

Other key lawyers:


‘The team is unique, with expert knowledge. The Belgium team often proposes innovative approaches.’

‘Very committed, very smart, extensive knowledge.’

‘Olivier Mignolet and Annabelle Bruyndonckx form a very balanced and effective duo. They have a perfect knowledge of their field of expertise; they are proactive and extremely reliable.’

‘Annabelle Bruyndonckx is directly involved with the public health authorities and has a superb network. ’

‘The life sciences team is service minded, responsive and willing to help.’

‘Annabelle Bruyndonckx has an extensive knowledge of the legislation and the sector. Her understanding of the reality of the business is impressive and she has an excellent capacity to identify the essence of the issue and how to resolve it in a pragmatic way.’

‘Simmons and Simmons offer a unique understanding of the needs of healthcare companies. Their knowledge of the regulatory system is outstanding, as are their connections to deliver the correct document to the right hands. They are service-oriented; you can count on their expertise, ethics, and commitment.’

‘Know-how, availability, creativity, knowledge of the issues, and reliability. Annabelle Bruyndonckx is the lawyer you want onboard in any complex legal regulatory situation; Nele Jonckers is the perfect complement to support her work.’

Key clients


Align Technology




Becton Dickinson











The Oncidium Foundation


Rhythm Pharmaceuticals

Roche Diagnostics

Samsung Bioepis





Stallergenes Greer





Zimmer Biomet

Belgium > Banking, finance and capital markets Tier 4

Since the inception of the practice in 2022, Simmons & Simmons advises a growing base of lenders and borrowers on a wide variety of debt finance transactions, handling acquisition and trade financings in addition to advising on securitisation transactions. Under the leadership of experienced acquisition finance expert Eric Blomme, the team is capable of assisting with complex financing structures, including mezzanine facilities, and also stands out for its cross-border work. Securitisation expert Martin Carlier and leveraged finance specialist Cécile Odeurs are further key contacts.

Practice head(s):

Eric Blomme


‘The team is knowledgeable, synchronised and accommodating, everyone was on the same page and delivered the same message. The team was proactive and was able to handle difficult situations. When the counterparty was slow and not as proactive, the team managed to lead and close the negotiations on our terms.’

‘Eric Blomme was extremely knowledgeable, he was able to handle difficult negotiating points on the spot, he understood our view and what we were trying to achieve very fast and worked hard to get us to that point. Martin Carlier was also very knowledgeable and interacted well with the team, his input was productive and positive. Both Eric and Martin were able to think outside the box and provide us with creative solutions to address our points.’

‘Eric Blomme is easily accessible, very experienced and pragmatic. Excellent listening skills and provide advices in order to facilitate the dealmaking and taking into account his client’s interests.’

‘A highly committed and competent team. Responsiveness to specific client requests is excellent.’

‘As a foreign company, we always felt that Eric Blomme and Cécile Odeurs provide an excellent insight in the speciality of Belgian company law and potential differences to our domestic laws. They guided us smoothly through a credit facility and security documentation, the form of which had been so far unknown to us.’

‘Always available and answered in time. Also very cooperative with opponents to find solutions rather than show problems. For financial advisory we want to mention Eric Bloome and Cecile Odeurs, who represented us throughout the financing process with our banking partner.’

‘Simmons & Simmons LLP has long been recognized for its commitment to excellence and expertise in regulatory finance. In this respect, we would like to highlight the precious contributions of Martin Carlier. Martin has a profound knowledge of financial regulations and a commendable dedication to client success. He always looks for a pragmatic approach to solve complex challenge and we particularly appreciate his accessibility.’

‘Martin Carlier’s work in the Belgian practice of Simmons & Simmons has been impressive, particularly in relation to regulatory finance and fund related advice. Martin has a deep understanding of cross-border regulatory finance issues and ensure meticulous attention to detail. Furthermore, Martin’s expertise in transactional banking is noteworthy, allowing clients to approach complex transactions with confidence.’

Key clients


Allianz SE

Atlas Capital Markets

Barclays PLC

Deutsche Bank AG

Eni Finance International

Euroclear SA/NV

ING Belgium SA/NV

J.P. Morgan Chase & Co.

Monument Assurance Belgium

Morgan Stanley & Co. International plc.

The Goldman Sachs Group, Inc.


UBS Switzerland AG and affiliates

Work highlights

  • Advised commodities trader Traxys as lead counsel on the extension of $1.57bn flagship multicurrency syndicated borrowing base credit facilities.
  • Advised Atlas Special Opportunities LLC as subscriber in connection with a €20m subscription agreement in respect of convertible bonds issued by Oxurion NV, a listed Belgian biotech company.
  • Advised the mezzanine lender on the refinancing of the Manhattan office building, located in Brussels.

Belgium > Dispute resolution Tier 4

Simmons & Simmons‘ disputes practice acts in high-profile litigation and arbitration, with particular expertise in the life sciences and financial sectors; the chemicals, fashion, and hospitality industries are also key areas of strength for the team. Olivier Mignolet and Annabelle Bruyndonckx lead the team, and are praised for being ‘very competent lawyers with a high attention to detail‘. Also of note is Jérémie Doornaert, who brings ‘strong knowledge of the pharma sector‘ to the practice.

Practice head(s):

Olivier Mignolet; Annabelle Bruyndonckx

Other key lawyers:


‘The team is always available and able to provide high level legal assistance.’

‘Olivier Mignolet and Annabelle Bruyndonckx are very competent lawyers with a high attention to detail and the ability to provide business-oriented legal advice.’

‘Jérémie Doornaert: available, strong knowledge of Pharma sector.’

Key clients

Align Technology

Banque Centrale de Guinée


GlaxoSmithKline Biologicals SA

Grant Thornton / ARF

Ordre des pharmaciens

Work highlights

  • Represented Ecnavla 8 UK Limited as well as its sole asset, Alvance Aluminium Belgium, in a number of proceedings concerning the control on Alvance Aluminium Belgium and Alvance Aluminium Duffel.
  • Representing Ordre des Pharmaciens in litigation against the Belgian Data Protection Authority before the Markets Court.

Belgium > EU regulatory: Privacy and data protection Tier 4

Best known for its work in the life sciences, TMT and financial services sectors, Simmons & Simmons leverages its contentious prowess to handle data protection-related mandates on behalf of clients from these industries. Olivier Mignolet and Alejandro Guerrero provide dispute resolution and TMT expertise respectively, while Jérémie Doornaert is the key GDPR specialist.

Practice head(s):

Olivier Mignolet; Alejandro Guerrero

Other key lawyers:


‘The data protection team is small but has a very good reputation in the life sciences sector as it has a deep understanding of the issues that the sector must face.’

‘They combine legal expertise with a client-friendly and practical approach.’

‘Jérémie Doornaert is very pragmatic, has a good understanding of the business and is able to translate the GDPR principles into business-oriented solutions. In addition, he is very responsive and respectful of deadlines.’

Key clients


Ascensia Diabetes Care




Coloplast Belgium

DiaSorin SA

GlaxoSmithKline Biologicals

GlaxoSmithKline Pharmaceuticals

Hownet Aerospace



Meta Platforms, Inc. (Facebook)


Monument Re


Morgan Stanley

Oncidium Foundation

Ordre des Pharmaciens

Rhythm Pharmaceuticals Inc.

Sanofi Belgium

Servier Benelux SA


Warner Bros

Work highlights

  • Representing Meta in a dispute with the Belgian Data Protection Authority concerning the setting and use of cookies on the site’s own and third-party websites.
  • Representing Ordre des Pharmaciens in litigation before the Belgian Data Protection Authority and the Market Court.
  • Advising a global pharmaceutical company on the transfer of human samples from Belgium to the US, including all data protection and regulatory aspects.

Belgium > Employment

Simmons & Simmons has continued to expand both at junior and senior levels and is capable of handling a growing volume of mandates under the leadership of Dimitri Van Uytvanck. Restructuring expert Herman Craeninckx, formerly at Strelia, joined the team in March 2024.

Belgium > Competition: EU and global

Under the leadership of Koen Platteau, Simmons & Simmons has been developing its capabilities in abuse of dominance cases and merger control proceedings. The arrival of Alejandro Guerrero Perez from Gibson Dunn in July 2022 was instrumental in strengthening the group.

The smartest business solutions come when we work together – international, but operating as one integrated team.

Collaborative, agile and partner-led: that’s Simmons & Simmons. A law firm that challenges, creates new possibilities and offers opinion not just option. A law firm that acts as your business partner and works with you, not for you.

We focus on four highly regulated sectors (asset management and investment funds, financial institutions, healthcare and life sciences and technology, media and telecommunications) – using our specialist skills to understand your business, and the forces at play around it. All grounded in exceptional knowledge of the legal detail.

This is how we consistently deliver smarter, more efficient ways to tackle our clients’ most complex challenges.

Photo Name Position Profile
Eric Blomme photo Eric Blomme Banking & Finance Partner at Simmons & Simmons, based in Brussels. Head…
Annabelle Bruyndonckx photo Annabelle Bruyndonckx With over 25 years of experience in advising clients in the Healthcare…
Alejandro Guerrero photo Alejandro Guerrero Alejandro is a partner in our EU Competition Law and Tech Regulation…
Carl Meyntjens photo Carl Meyntjens Carl’s practice focuses on corporate and financial law. He has nearly 30…
Olivier Mignolet photo Olivier Mignolet Olivier specialises in commercial law and commercial litigation/arbitration, with a particular emphasis…
Koen Platteau photo Koen Platteau Koen advises clients on EU and Belgian competition law matters and has…
Dimitri Van Uytvanck photo Dimitri Van Uytvanck Dimitri heads the employment & benefits department for Belgium. He specializes in…