
Competition: EU
Global Guide 2026 : Belgium
Rankings

Ranked Individuals
Ranked Individuals
About
Provided by White & Case LLP
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Work Highlights
Provided by Chambers
White & Case advised Swisscom on the competition law aspects of the acquisition of Vodafone Italia by its subsidiary Fastweb.
Strengths
Provided by Chambers
White & Case's team provides thorough advice and takes a pragmatic approach, with a solution-oriented mindset
Competition: EU respondentGlobalWhite & Case's team leverages its vast experience in EU antitrust law to provide strategic counseling on procedural issues.
Competition: EU respondentGlobalWhite & Case has high performing and substantively agile senior partners who always provide timely, sophisticated and pragmatic advice to complex issues.
Competition: EU respondentGlobalWhite & Case invests deeply in relationship building which facilitates its exceptional advice and overall service offering.
Competition: EU respondentGlobalWhite & Case's team is a litigation powerhouse and expertly handles complex antitrust cases. The lawyers are fierce in court and get the argument across in a simple and efficient manner.
Competition: EU respondentGlobal
Notable Practitioners
Provided by Chambers
Senior Statespeople 
Senior Statespeople 
Mark Powell
Mark Powell is widely viewed as a prominent figure in the market for his work challenging the findings of behavioural investigations by the EC.
Band 2 
Band 2 
Assimakis Komninos
Assimakis Komninos moves up in the rankings on the back of handling impressive mandates for high-profile clients from the technology and FMCG sectors. He represents companies in EC behavioural investigations and related CJEU appeals. He is also admitted to the Athens Bar and often handles mandates that involve interaction with the Hellenic Competition Commission.
He is an accomplished litigator, with deep experience before the European Union Courts.
Competition: EU respondentGlobalAssimakis Komninos is fantastic. He has a strong legal mind, is very client-friendly and has an incredible awareness of trends.
Competition: EU respondentGlobalHe is the guy you go to in Brussels if you have a procedural question on the law.
Competition: EU respondentGlobalAssimakis Komninos deeply understands how the Commission operates and can provide highly strategic advice, which helps companies navigate supervision and enforcement.
Competition: EU respondentGlobalAssimakis Komninos is a very knowledgeable and competent adviser.
Competition: EU respondentGlobal
Band 2 Band 2 James Killick
James Killick leads some of the firm's most high-profile matters, including appeals against considerable fines imposed by the EC for abuse of dominance. He has further experience in FSR filings and follow-on damages actions. He often represents clients from the technology and pharmaceutical sectors.
He is a true subject matter expert. He is brilliant in terms of legal skills and he is an unassuming guy.
Competition: EU respondentGlobalJames Killick is intellectually really impressive.
Competition: EU respondentGlobalMake no mistake, James Killick is a great lawyer, a true expert in the field, and a pleasure to work with.
Competition: EU respondentGlobal
Band 6 
Band 6 
Strati Sakellariou-Witt
Partner Strati Sakellariou-Witt is triple qualified in Brussels, Athens and New York, and garners praise for her expertise in assisting clients in multi-jurisdictional merger control cases and EC behavioural investigations.
Strati Sakellariou-Witt is the complete package. She is absolutely committed to client service, has an extraordinary commercial acumen and is a fearless advocate.
Competition: EU respondentGlobalStrati Sakellariou-Witt is an experienced lawyer who is also very available and a pleasure to work with.
Competition: EU respondentGlobalStrati has a strong command of the regulatory landscape and consistently provides strong advice on complicated matters tailored to meet the client's commercial objectives.
Competition: EU respondentGlobal
Up and Coming 
Up and Coming 
Kasia Czapracka
Katarzyna Czapracka draws upon her expertise to assist clients in the TMT and natural resources industries with merger clearance proceedings. She is also qualified in Poland and often assists with Polish merger control filings.
Kasia Czapracka is very competent, hard-working and pleasant to deal with.
Competition: EU respondentGlobalKasia Czapracka is able to provide pragmatic advice to complex issues and is ready to give a yes or no answer to difficult matters.
Competition: EU respondentGlobal
Ranked Individuals at White & Case LLP (5)
Members
Provided by White & Case LLP

Assimakis Komninos
View profile of Assimakis Komninos
Kasia Czapracka
View profile of Kasia Czapracka
Mark Powell
View profile of Mark Powell
James Killick
View profile of James Killick
Strati Sakellariou-Witt
View profile of Strati Sakellariou-Witt
White & Case LLP has rankings in the following guides
Band 4 Europe 2026
Practice area: Competition/European Law
Location: Italy
View department profile for Europe 2026Band 3 France 2026
Practice area: Competition/European Law
Location: France
View department profile for France 2026
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