Nikolaus Grubeck

Ranked in 5 Practice Areas

Band 1

Data Protection

London (Bar)

5 Years Ranked

Band 2

Administrative & Public Law

London (Bar)

12 Years Ranked

Band 2

Civil Liberties & Human Rights

London (Bar)

9 Years Ranked

Band 2

Competition Law

London (Bar)

5 Years Ranked

Band 3

Group Litigation

All Circuits

4 Years Ranked

Ranked in Guides

Global 2025

About

Provided by Nikolaus Grubeck

UK Bar

Practice Areas

Nikolaus is a leading junior practising in the fields of competition, public and regulatory, human rights, data protection, and international law. He acts regularly in high-profile litigation, and has particular expertise in mergers, complex public law cases, group litigation, and in claims involving issues of national security, armed conflict and international relations.

Career

Called to the Bar of England & Wales 2010.

LLM (Harvard Law School); BA Law (Exeter College, Oxford).

Former judicial assistant to Lord Neuberger of Abbotsbury.

Before coming to the bar, Nikolaus worked for the United Nations in Afghanistan and Sudan.

Chambers Review

Provided by Chambers

UK Bar

Data Protection - London (Bar)

Band 1

Individual Editorial

Nikolaus Grubeck is a well-regarded barrister who tends to represent claimants or the Information Commissioner in important data protection cases. He is particularly experienced in matters concerning the use of personal data by large online companies.

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Competition Law - London (Bar)

Band 2

Individual Editorial

Nikolaus Grubeck is well regarded for advising class representatives on collective proceedings and for advising defendants on potential claims of abuse of dominance, often in the technology sector. He has notable experience defending the CMA and other regulatory bodies in competition law challenges to their decisions.

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Civil Liberties & Human Rights - London (Bar)

Band 2

Individual Editorial

Nikolaus Grubeck is a notable civil liberties and human rights barrister who has a significant practice at all levels of UK court and the European Court of Human Rights. He represents NGOs and individuals as well as the government in a range of matters, with a particular specialism in national security. He is known for his expertise in data protection, especially when it comes to new developments in the area.

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Administrative & Public Law - London (Bar)

Band 2

Individual Editorial

Nikolaus Grubeck is highly knowledgeable on the overlap between public and human rights law. His expertise in cases concerning national security and foreign affairs is of particular note. He receives instructions from both claimants and defendants, including government departments. He also frequently appears in public law challenges concerning commercial regulation, as well as information law.

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Group Litigation - All Circuits

Band 3

Individual Editorial

Nikolaus Grubeck has a strong collective actions practice spanning competition, data protection and human rights law. He has acted for claimant groups and representative claimants in a number of novel claims including Le Patourel v BT.

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Strengths

Provided by Chambers

Nikolaus provides clear, practical and commercially sound advice, and their depth of knowledge in this complex area is always reassuring. He is a pleasure to work with.

Data Protection respondent
UK Bar

He is very analytical, precise, and you can absolutely trust what he wants to do. His written work is also good.

Data Protection respondent
UK Bar

Nikolaus is the complete package. He is smart, technically strong and does brilliant advocacy. It cheers me up to work with him - you feel you have someone in the trenches with you.

Competition Law respondent
UK Bar

He is a very impressive strategist with an invaluable ability to predict how complex issues will play out. He has a calm manner, making him an unflappable advocate.

Competition Law respondent
UK Bar

Nikolaus is able to turn his hand to a broad range of complex competition matters and has a wealth of expertise in pleading difficult cases.

Competition Law respondent
UK Bar

Nikolaus is extremely thorough and clear in his advice and strategic in his thinking.

Civil Liberties & Human Rights respondent
UK Bar

Nikolaus is a complete superstar. He's very versatile and very strategic in the way he thinks about a case. He is a pleasure to work with.

Civil Liberties & Human Rights respondent
UK Bar

Nikolaus is very analytical, very precise and you can absolutely trust what he's going to do.

Civil Liberties & Human Rights respondent
UK Bar

Nikolaus has an enormous brain.

Civil Liberties & Human Rights respondent
UK Bar

Nikolaus delivers very clear and persuasive advocacy.

Civil Liberties & Human Rights respondent
UK Bar

Nik is one of the best senior juniors in public law. He is very collaborative, his knowledge is incredibly detailed and his expertise spans multiple areas.

Administrative & Public Law respondent
UK Bar

Nik is a fantastic junior who is really clever, really easy to deal with and very good at distilling complex issues into something easy to understand.

Administrative & Public Law respondent
UK Bar

Nikolaus got up to speed in record time, is across the highly technical details of the case, and uses his pen as a weapon. I highly recommend him.

Group Litigation respondent
UK Bar

Nikolaus has really good judgement. He is really clam and he produced some really high-standard written work.

Group Litigation respondent
UK Bar

Nikolaus provides clear, practical and commercially sound advice, and their depth of knowledge in this complex area is always reassuring. He is a pleasure to work with.

Data Protection respondent
UK Bar

He is very analytical, precise, and you can absolutely trust what he wants to do. His written work is also good.

Data Protection respondent
UK Bar

Nikolaus is the complete package. He is smart, technically strong and does brilliant advocacy. It cheers me up to work with him - you feel you have someone in the trenches with you.

Competition Law respondent
UK Bar

He is a very impressive strategist with an invaluable ability to predict how complex issues will play out. He has a calm manner, making him an unflappable advocate.

Competition Law respondent
UK Bar

Nikolaus is able to turn his hand to a broad range of complex competition matters and has a wealth of expertise in pleading difficult cases.

Competition Law respondent
UK Bar

Nikolaus is extremely thorough and clear in his advice and strategic in his thinking.

Civil Liberties & Human Rights respondent
UK Bar

Nikolaus is a complete superstar. He's very versatile and very strategic in the way he thinks about a case. He is a pleasure to work with.

Civil Liberties & Human Rights respondent
UK Bar

Nikolaus is very analytical, very precise and you can absolutely trust what he's going to do.

Civil Liberties & Human Rights respondent
UK Bar

Nikolaus has an enormous brain.

Civil Liberties & Human Rights respondent
UK Bar

Nikolaus delivers very clear and persuasive advocacy.

Civil Liberties & Human Rights respondent
UK Bar

Nik is one of the best senior juniors in public law. He is very collaborative, his knowledge is incredibly detailed and his expertise spans multiple areas.

Administrative & Public Law respondent
UK Bar

Nik is a fantastic junior who is really clever, really easy to deal with and very good at distilling complex issues into something easy to understand.

Administrative & Public Law respondent
UK Bar

Nikolaus got up to speed in record time, is across the highly technical details of the case, and uses his pen as a weapon. I highly recommend him.

Group Litigation respondent
UK Bar

Nikolaus has really good judgement. He is really clam and he produced some really high-standard written work.

Group Litigation respondent
UK Bar

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