Geradin Partners is pleased to announce the arrivals of Daniel Baker and Jérémie Jourdan as partners in the competition practice 

Geradin Partners is pleased to announce the arrivals of Daniel Baker and Jérémie Jourdan as partners in the competition practice 

Brussels, 1 September 2025 

Geradin Partners is delighted to announce that Daniel Baker and Jérémie Jourdan will join the firm as partners on 1 September 2025. Daniel will be based in Brussels, while Jérémie will work between Brussels and Paris.

Daniel is a competition lawyer with broad experience in merger control, antitrust counselling, and foreign subsidies control. He joins from Latham & Watkins, where he assisted financial sponsors and strategic investors obtain global regulatory approvals for complex, high-value transactions. Daniel has over a decade of experience advising clients on multi-jurisdictional filing assessments, cross-border merger investigations, and notifications under the EU’s Foreign Subsidies Regulation, as well as helping companies navigate the antitrust aspects of joint ventures and commercial arrangements. In addition, he has acted for technology platforms in relation to antitrust investigations by the European Commission.

Daniel’s transactional experience spans industry sectors, including semiconductors (AMD / Xilinx, AMD / ZT Systems), esports and gaming (Savvy Games Group / VSPO), cryptocurrency (Coinbase / Deribit), extractive industries (consortium acquisition of ENGIE’s oil & gas exploration and production business, Carlyle / Energean oil & gas assets), insurance (Onex / R&Q Accredited), as well as basic industries and manufacturing (Viasat / Inmarsat, Carlyle / Flender, and BASF’s acquisition of the Bayer/Monsanto divestment assets).

Jérémie is a competition lawyer with extensive experience in antitrust litigation, merger control and tech regulation. He joins from Vend (formerly Schibsted Marketplaces) in Oslo, where he was Director of Competition Law and Public Policy. In this role, he advised on complex antitrust issues in the tech sector, but also on the implementation of tech regulations such as the DMA, DSA, Data Act and the AI Act. He was involved in DMA investigations relating to app stores and self-preferencing against Apple and Google.

Prior to his in-house role, Jérémie was a partner at White & Case in Brussels, where he represented clients in several landmark cases before the European Commission and European Courts (e.g., Servier, Intermarché Casino Achats, Euribor, Cathode Ray Tubes), as well as merger control matters. He was then recognised as a Global Leader in Competition by Who’s Who Legal and a Next Generation Partner in EU and global competition law by Legal 500. Jérémie also spent two years at the European Commission Hearing Office, gaining particular expertise in procedural aspects of competition law enforcement.  

Founding partner Damien Geradin commented:

“We are thrilled to welcome Daniel and Jérémie to the team. Daniel’s extensive experience in merger control will strengthen our transactional practice, which is one of our key objective for the coming years. Jérémie’s outstanding litigation track record, strategic insight on tech regulation, and deep understanding of EU institutions will be invaluable assets to our clients as we continue to build our Brussels and Paris practices. His arrival reinforces Geradin Partners’ position as the leading independent European competition and digital regulation firm.”

Daniel Baker observed:

“I am delighted to be joining Geradin Partners at this exciting time in the firm’s evolution. The spectacular growth of Geradin Partners from legal boutique to antitrust powerhouse over the past five years has been one of the stand-out success stories in the European antitrust community. Beyond the string of high-profile cases, I have been impressed by the firm’s entrepreneurial spirit and ambition, as well as the talented team that the firm is assembling. I am excited by the opportunity of working with Damien and team to help build a transactional practice covering the waterfront of merger control, foreign subsidies control, and foreign direct investment review.”

Jérémie Jourdan observed: 

“I am very happy to join Geradin Partners. I have been impressed by how rapidly it has established itself as one of the go-to teams for complex competition and tech regulatory matters in Europe. The firm counts seasoned litigators, several former enforcers and court referendaires, economists and consultants, giving it a depth that few other firms offer, while at the same time maintaining the agility of a specialized boutique. I really look forward to joining such a great team and helping them continue to grow the business at such a fantastic pace.“

About Geradin Partners

Geradin Partners is the premier pan-European law firm for competition law, tech regulation, and litigation in major cases across the EU and the UK. With offices in Amsterdam, Berlin, Brussels, Cologne, Helsinki, London, and Paris, the firm is recognised for its commitment to excellence, strategic advice, and innovative approach.

For all questions, please contact:

Damien Geradin
dgeradin@geradinpartners.com
+32 471 17 95 25

geradinpartners.com

Geradin Partners, a leading European law firm specialising in competition and digital regulation, continues to expand its team with the arrival of Marie Sellier 

Paris and Brussels, 1 September 2025  

Geradin Partners is pleased to announce the arrival of Marie Sellier, an expert in public affairs and digital regulation, as Senior Advisor at its Paris office. 

Marie Sellier brings to the firm 18 years of experience in public affairs and regulation at both the French and European levels, with recognised expertise in the creative industries and digital media, acquired in particular as Director of Public Affairs at the Vivendi Group.  

Damien Geradin, founding partner, comments:  

“We are delighted to welcome Marie to our team. She will enable us to achieve several strategic objectives. Firstly, her arrival strengthens our ability to advise our clients, both in France and across Europe, on complex digital regulatory issues, including the DMA, DSA and artificial intelligence, as well as on media industry regulatory issues. Secondly, Marie’s unique experience in anticipating and analysing European regulatory developments, gained during her career at Vivendi, will strengthen our ability to support our clients both in the run-up to the adoption of new regulations and in their strategies vis-à-vis the French and European regulatory authorities. Thirdly, Marie’s expertise in platform regulation and artificial intelligence will enable us to offer companies, in addition to our recognised litigation skills, an even more strategic and holistic approach that is particularly useful in these areas. 

During her 18-year career, including 10 years as Director of Public Affairs at Vivendi, Marie has been directly involved in analysing and anticipating developments in European law affecting digital media, intellectual property and the creative industries. She has led teams and driven numerous multi-stakeholder initiatives on topics as diverse as digital platform regulation, intellectual property, audiovisual media services legislation, and emerging issues in artificial intelligence and technology ethics.  

Marie Sellier adds:  

“I am honoured and delighted to be joining Geradin Partners, which has become one of Europe’s leading law firms for the most complex cases in competition law and digital regulation. The firm’s expertise in technology and its recognised authority on digital regulation issues are a perfect fit with my experience. Joining Geradin Partners to work with its partners based in Paris and Brussels in particular will allow me to continue to contribute to the complex interpretation of the European regulatory environment, especially at a time when the creative and technology industries are facing major regulatory changes. My participation in the Franco-German dialogue through the HCCFA and my involvement in AI ethics issues will, I hope, enrich the firm’s strategic approach.”  

About Marie Sellier  

A graduate of Sciences Po (1999) and holder of a Specialised Master’s degree in International Business Law from ESSEC (2004), Marie Sellier, who is not a member of the bar, completed her training with a TRIUM Executive MBA (2016). She began her career in telecommunications at Completel and then at Alcatel (2001-2004). She then spent most of her career at Vivendi (2005-2024), becoming Director of Public Affairs (2016-2025). She has also been Policy Advisor for the Human Artistry Campaign since July 2025, an investor in the start-up aeroscale.bike, and a member of the Franco-German High Cultural Council (HCCFA). She is recognised for her expertise in media regulation, digital platforms, and compliance in artificial intelligence. 

About Geradin Partners  

Geradin Partners was founded by Damien Géradin, a recognised expert in competition law and digital regulation, who has spent the last thirty years practising as a lawyer and teaching as a professor in these fields. With a team of 17 partners and a total of 50 competition lawyers based in seven offices in Amsterdam, Berlin, Brussels, Cologne, Helsinki, London and Paris, Geradin Partners is the leading European law firm offering services in complex and high-stakes competition and digital regulation cases across the European Union and the United Kingdom. In Paris, Geradin Partners now has four partners and a senior advisor. The firm is recognised by its clients and peers for its excellence and innovative and strategic approach.  

For any questions, please contact: 

Damien Geradin: dgeradin@geradinpartners.com 

Marc Barennes: mbarennes@geradinpartners.com 

Leading European competition, tech regulation and litigation firm Geradin Partners hires former British government minister, Damian Collins OBE 

London, 1 September 2025  

Geradin Partners is expanding its digital regulation capabilities in London with the hire of former government minister, Damian Collins OBE.  Damian will lead the firm’s policy practice in London. 

The development of digital regulation in the UK and EU has a strong policy dimension. This has been an important part of the firm’s work for clients on the UK’s Digital Markets, Competition and Consumers (DMCC) Act and Online Safety Act, and the EU’s Digital Markets Act, Digital Services Act, and AI Act, amongst others.  

Damian is a respected expert on these issues. He is a former British government Minister for Tech and the Digital Economy, with responsibility for online harms, digital competition and AI safety. He played a leading role in the passage of the DMCC Act through Parliament. He chaired the House of Commons Digital, Culture, Media and Sport select committee, leading major inquiries into social media disinformation and the impact of addictive and immersive technologies. In 2021, he chaired the Joint Committee of the House of Lords and House of Commons which led the scrutiny of the UK’s Online Safety Act. He is currently a visiting Senior Fellow the Centre for Media, Democracy and Technology at the Max Bell Public Policy School at McGill University in Canada. Damian was awarded the Officer of the Order of the British Empire (OBE) for his political and public service in the King’s Birthday Honours List 2023. 

Damien Geradin, founding partner of Geradin Partners, says: 

“Our firm has been at the forefront of digital regulation issues throughout their development. Our clients will now benefit from Damian’s unique insights into the policy environment as this continues to develop over the next few years.” 

Damian Collins OBE says: 

“I am thrilled to join Geradin Partners’ market-leading tech, media and telecoms practice.  Sophisticated companies need guidance on the political and regulatory environment in these areas, which can change quickly and in complex ways. We are perfectly placed to provide that guidance.” 

Geradin Partners is the leading firm for digital regulation in the UK.  It was the only law firm invited to give evidence to the House of Commons public bill committee, and also to the House of Lords digital and communications select committee, during and after the passage of the DMCC Act. The firm has six former senior lawyers of the Competition and Markets Authority (CMA), and has been closely involved in all of the CMA’s major investigations in the tech sector. 

Geradin Partners’ policy practice is developing quickly across Europe with the recruitment of Marie Sellier (former VP of Public Affairs for Vivendi) in Paris, and the presence of Tuomas Pöysti (Finland’s former Chancellor of Justice) and Jan Vapaavuori (former Mayor of Helsinki, Finland’s Minister of Economic Affairs, and Vice-President of the European Investment Bank) in Helsinki. 

About Geradin Partners  

Geradin Partners is the premier pan-European law firm for competition law and digital regulation in major cases throughout the EU and the UK. Following its German expansion in September 2025, it has offices in Amsterdam, Berlin, Brussels, Cologne, Helsinki, London and Paris, with over 50 specialist lawyers. It is recognised by its clients and peers for its commitment to excellence, as well as for its innovative and strategic approach.  

For all questions, please contact Damien Geradin (dgeradin@geradinpartners.com; + 32 471 17 95 25) or Tom Smith (tsmith@geradinpartners.com; +44 797 964 2347). 

Professor Stephan’s £2.7bn claim against Amazon certified to proceed to trial in the UK’s Competition Appeal Tribunal 

LONDON, UK 

24 July 2025 

A claim brought by Professor Stephan, a leading competition law professor, against Amazon has been certified to proceed to trial before the UK’s Competition Appeal Tribunal (“CAT”). 

Professor Stephan’s claim, filed on 26 June 2024, alleged that Amazon engaged in anticompetitive conduct to the detriment of a large class of “third-party sellers” in the UK who use the Amazon marketplace to sell goods. 

Professor Stephan’s case is being brought on behalf of more than 200,000 UK third-party sellers on Amazon. Any UK individual or company that used a “professional” selling account to sell products to UK consumers on Amazon between June 2018 and June 2024 will be automatically part of the case, unless they opt-out. If Professor Stephan is successful, sellers will be entitled to compensation from the tech giant. 

Professor Stephan claims that Amazon has engaged in a series of separate, but interrelated, abuse of its dominant position in the supply of e-commerce marketplace services to third-party sellers to reach customers in the UK. Amazon discriminates in favour of its own retail offers versus those of third-party sellers, as well as in favour of its own logistics services (Fulfilment by Amazon or “FBA”) through a combination of conducts. Amazon also unfairly conditions access to Amazon Prime to the use of FBA, and distorts inter-platform competition by making it harder for third party sellers to sell more cheaply on other platforms. As a result of these abuses, third-party sellers have lost sales, faced increased costs and paid higher fees to Amazon for its services than they would have under normal conditions of competition. 

Professor Stephan’s certification application was also heard together with a claim brought by Robert Hammond on behalf of UK consumers, claiming damages for allegedly higher prices they paid for products on the Amazon marketplace. Mr Hammond’s claim has also been certified, partly on the basis that certain overlapping economic issues with Prof Stephan’s claim are to be brought on the basis of Dr Houpis’ methodology. 

This judgment follows a three-day certification hearing which took place from 6-8 May 2025. Geradin Partners instructed Kieron Beal KC (Blackstone Chambers), Laurence Page (4 Pump Court) and Hannah Bernstein (Fountain Court Chambers) for the hearing. In its judgment, the CAT complimented the work of Professor Stephan’s expert economist, Dr George Houpis of Frontier Economics, for preparing a main report that “is comprehensive and very detailed”. 

Professor Stephan said: “Amazon has engaged in a variety of strategies to grow its e-commerce platform, lock sellers into it, prevent the expansion of rivals, and use its market dominance to exploit the hundreds of thousands of sellers in Britain that use its platform. But few of these independent online sellers can operate without using Amazon’s platform – leaving them vulnerable to abuse. I am bringing this litigation to give sellers in the UK the opportunity that they might not otherwise have to be compensated for all those unfair practices, and help ensure fairer treatment of third-party sellers by Amazon in the future.” 

Founding Partner of Geradin Partners, Damien Geradin, said: “Amazon, one of the world’s largest companies, has engaged in manifest abuses of its dominant position as recognized by competition authorities in the EU and the UK. Amazon is also subject to a lawsuit filed by the US Federal Trade Commission for anticompetitive conduct. This class action gives sellers the opportunity to seek redress for the significant harm they have suffered.” 

Further information can be found at: www.amazon3psellerclaim.com. This includes an online form to enable third party sellers to register for updates on the claim, as well as to get in touch with Professor Stephan. 

2025.07.24. 1595 1644 Joint Amazon CPOs Tribunal Judgment [2025] CAT 42Download

Geradin Partners represents Corning Incorporated in European Commission antitrust settlement

Brussels, 21 July 2025

Geradin Partners acted for Corning Incorporated (NYSE: GLW) in a European Commission investigation into whether Corning abused a dominant position in breach of Article 102 of the Treaty on the Functioning of the European Union (TFEU). Corning resolved the investigation without any admission of liability and without having to pay any financial penalties, by offering a comprehensive, detailed and complex set of behavioural remedies, which the Commission accepted and made binding in a decision under Article 9 of Regulation 1/2003. Partners Trevor Soames and Stijn Huijts in Brussels represented Corning in this matter, along with several colleagues. The case is one of a number ongoing but confidential defence cases the firm is currently handling before the European Commission and national competition agencies.

Joosua Virtanen joins Geradin Partners as Chief Data Scientist and Principal Economist to lead Geradin Partners AI

We are pleased to announce that Joosua Virtanen has joined Geradin Partners as Chief Data Scientist and Principal Economist as of 15 May 2025.

Joosua is set to defend his doctoral thesis at Hanken School of Economics and the Helsinki Graduate School of Economics later this year. He is an empirical economist with research interests in the competition economics, innovation, and public procurement. Joosua holds an MSc in Business Economics and has previous experience from working at a leading law firm Helsinki.

“The appointment of a Chief Data Scientist marks a significant strategic step for our firm. Joosua will spearhead the development of Geradin Partners AI, which focuses on competition law, economics, state aid, and sectoral regulation, including public procurement. We are confident that the database and AI-driven tools we are developing will transform the way we analyse complex regulatory issues, enabling faster and more precise insights to the benefit of our clients,” says Mikko Alkio, Partner in our Helsinki and Brussels offices.

“We are thrilled to welcome Joosua to our team. His expertise in competition economics further strengthens our ability to deliver high-quality analyses and solutions in complex competition law and sector-specific regulatory matters. Joosua brings valuable experience in harnessing large datasets for advanced economic and market analyses, particularly in merger control and other competition authority proceedings. He will also play a key role in enhancing our capabilities in complex investigations and litigation by developing robust processes and tools — including machine learning and AI-based solutions — for efficiently processing and classifying large volumes of documents,” says founding partner Damien Geradin.

Geradin Partners is a law firm specialized in competition law, regulation and litigation, with offices located in Amsterdam, Brussels, Helsinki, London, and Paris. The firm has 13 partners and 40 competition lawyers and advisors.

Contacts:

Damien Geradin: +32 471 17 95 25

Mikko Alkio: +358 50 413 5502

Joosua Virtanen: +358 40 846 0677

Geradin Partners is pleased to announce the arrival of Jennifer Reeves as a partner in its London office

Jenny is a solicitor-advocate with significant experience in competition litigation, commercial disputes and public law matters. Jenny has particular expertise representing clients in complex competition litigation, including collective actions, cartel damages claims and regulatory appeals before the UK courts. Jenny joins from Macfarlanes in London and has also worked at Freshfields and Baker McKenzie. As a former référendaire at the UK’s Competition Appeal Tribunal, Jenny was closely involved in the introduction of collective proceedings in 2015.

Damien Geradin, the founder of Geradin Partners says: 

“I am delighted that Jenny is joining our firm as a partner, bringing considerable experience to our excellent competition and litigation practices in the UK. Jenny will contribute immediately to the various complex claims the firm is running before the Competition Appeal Tribunal, though given the breadth of her practice she will play an integral role in expanding the firm’s litigation portfolio.” 

Jenny Reeves observes:  

“I’m thrilled to be joining Geradin Partners. The firm has positioned itself at the forefront of the most important competition and regulatory issues of the moment, making this an incredibly exciting time to come on board. I look forward to contributing to the growth of the firm’s litigation practice and working alongside a truly impressive team to deliver outstanding results for our clients.” 

Geradin Partners is a pan-European law firm focused on competition law, digital regulation and litigation with offices in Brussels, London, Amsterdam, Paris and Helsinki. It has 13 partners for a total of 35 lawyers and advisors.

Contacts : 

Damien Geradin: dgeradin@geradinpartners.com

Jenny Reeves: jreeves@geradinpartners.com

Tuomas Pöysti appointed to lead Geradin Partners’ Investigations and Cross-border Trade Practice 

Geradin Partners is delighted to announce that Tuomas Pöysti, who has stepped down from his role as Chancellor of Justice of the Government of Finland, will join the firm as Senior Counsel starting in August. Pöysti will first be based at Geradin Partners’ Brussels office and later he will also be working in Helsinki. 

During his tenure as Chancellor of Justice, Pöysti served as the supreme independent overseer of legality in Finland, with responsibilities including the legal oversight of the Government (at the Cabinet minister level), the President of the Republic, courts, public authorities and all those performing public tasks. 

“I am thrilled that Tuomas has decided to join our rapidly growing firm. His exceptional experience will be highly valued by our clients, particularly in the context of complex contentious, risk management, and compliance matters. His exceptionally broad and in-depth knowledge of national and European law will be an invaluable resource for our clients”, Damien Geradin, the founder of Geradin Partners, says. 

Mikko Alkio, partner at Helsinki office, comments: “Tuomas is the perfect addition to lead Geradin Partners’ investigations practice, where we advise clients in both preventive (ex ante) and responsive (ex post) corporate investigations. Tuomas will also support us in cross-border regulatory affairs, including trade and investment issues which are of growing importance to our clients.” 

Pöysti comments: “Geradin Partners is frequently engaged in strategic roles, working closely with boards, general counsel, and other senior executives. The team operates across a wide range of sectors, including trade and complex tech law issues. I am very much looking forward to working in this environment and combining my own extensive experience with that of the talented team members at Geradin Partners.” 

Geradin Partners operates in five European jurisdictions and is known for its deep expertise in competition law, EU regulation, and highly regulated industries. Pöysti will be leading the Investigations practice. 

Contacts: 

Damien Geradin, tel. +32 471 17 95 25 

Mikko Alkio, tel. +358 50 413 5502 

Tuomas Pöysti, tel. +358 40 501 0186 

Jan Vapaavuori joins Geradin Partners as Senior Counsel to strengthen regulatory and investment advisory

Geradin Partners is pleased to announce that Jan Vapaavuori will join the firm as Senior Counsel in May 2025. Vapaavuori has served as Mayor of Helsinki, Minister of Economic Affairs, and Vice-President of the European Investment Bank. He holds a Master of Laws degree from the University of Helsinki and an honorary doctorate in economics from Hanken School of Economics.

The legal profession is undergoing fundamental change. Artificial intelligence is transforming how legal services are delivered, and regulatory information is becoming increasingly accessible. In this evolving environment, the ability to anticipate, interpret and apply legal frameworks in a value-adding way becomes ever more critical.

“As legal advisors, we act as strategic partners in our clients’ most important projects and processes. Our role requires a deep understanding of the regulatory, political and economic context—especially when advising on investment decisions or assessing legal risks,” says Damien Geradin, founding partner at Geradin Partners.

With Finland facing structural economic challenges, sustainable growth depends on smart, targeted investment. Geradin Partners aims to contribute to Finland’s investment attractiveness by offering legal advice grounded in deep regulatory expertise and multidisciplinary insight.

“We are expanding our service offering towards a fully integrated strategic advisory firm. By combining legal, policy and economic perspectives, we help our clients implement complex investments and navigate regulatory impact. Jan’s unique experience and perspective significantly strengthen this mission,” comments Mikko Alkio, partner at Helsinki office.

Vapaavuori comments:

“We are living in a world where regulatory environments are evolving rapidly—often unpredictably—both nationally and internationally. Thriving in such a setting requires a multidimensional and integrated approach. I look forward to combining my past experience together with Geradin Partners’ international perspective. The firm is committed to building solutions, not just interpreting rules. It’s an environment where I know I can also make a difference.”

Geradin Partners operates in five European jurisdictions and is known for its deep expertise in competition law, EU regulation, and highly regulated industries. Vapaavuori will especially focus on sectors of national and foreign investment and trade regulation. 

Contacts:

Jan Vapaavuori – tel. +358-40-8307054

Mikko Alkio – tel. +358-50-4135502