Skip to main content

Hakim focuses on civil and corporate litigation (class actions, shareholders’ disputes, post-acquisition claims, ...), international arbitration (including proceedings related to arbitration: enforcement of arbitral awards, setting aside, interim measures, ...) and asset recovery. Hakim is one of the most renowned specialists of collective redress. He also frequently acts as counsel or arbitrator in international arbitration matters.

Hakim’s recent activities include:

• Defending Meta Platforms, Ryanair and Porsche in class action proceedings;
• Defending a major European Retail Alliance based in Brussels against the French Ministry of Economy;
• Defending AstraZeneca against the claim of the Commission and the Member States in relation with COVID-19 vaccine supply;
• Chairing ICC panel in a dispute between partners in a consortium for a construction project in Africa.

Sectors & Markets

Contributions

Memberships

Brussels Bar (Ordre Français des Avocats), 1996
Board of CEPANI (Belgian institute for arbitration)
ICC Commission on Arbitration and ADR
International Arbitration Institute (IAI)

Qualifications

Doctor of Laws, Université libre de Bruxelles (Belgium), 2007
Master of Laws, Université libre de Bruxelles (Belgium), 1996

Publications

Boularbah, H., Mallien, A. (2022), “The Impact of Default on Post-Arbitration Proceedings” in De Meulemeester, D., Default in international arbitration - Striking the balance, CEPANI, Wolters Kluwer Belgium, Mechelen, 2022, 127-153.
Boularbah, H., Van der Haegen, O., Mallien, A. (2024). Challenging and Enforcing Arbitration Awards 2024, Global Arbitration Review, GAR Insight.
Boularbah, H., Berger I. (2024), Belgium chapter: Litigation funding, Panoramic Guide, Lexology.
Boularbah, H., Van den Bossche, M.-C. (2021). Recent developments in case law and legislation in Belgium, Mass Claim Journal, Den Hollander.
Boularbah, H., Van den Bossche, M.-C. (2021). The Class Action Law Review, The Law Reviews, Law Business Research Ltd, Camilla Sanger (5th ed.).
Boularbah, H., Biemar, B., de Level, G., et. al. (2021). Droit judiciaire. Tome 2. Procédure civile. Volume 1. Principes directeurs du procès civil, Collection de la Faculté de Droit de L’Université de Liège, Larcier (2nd ed.).
Boularbah, H., Van den Bossche M.-C. (2024), Class, Collective, and Representative Actions: Overview (Practice Note Belgium), Practical Law, Thomson Reuters.

What others say

"Hakim is an extremely sharp and very quick-minded lawyer who makes a brilliant impression. He can do many things and I can only give praise about him."
Chambers and Partners - Global Guide (2026)
"Hakim Boularbah is very smart, creative and absolutely brilliant. He is probably the most forward-thinking lawyer I have ever met."
Chambers and Partners - Global Guide (2026)
"Hakim Boularbah is an excellent lawyer with a marvellous mind."
Chambers and Partners - Global Guide (2026)
"Hakim Boularbah is one of the go-to lawyers for complex commercial disputes. His expertise and quality is unparalleled."
Chambers and Partners - Global Guide (2026)
"Hakim Boularbah is extraordinary and extremely knowledgeable in procedural tricks. He is extremely reliable, persuasive and very creative in his arguments, and he thinks outside of the box."
Chambers and Partners - Global Guide (2026)
"Hakim is a very versatile and experienced lawyer, as well as an extremely likeable person. I will no doubt instruct him again if we have a Belgium-related dispute."
Chambers and Partners - Global Guide (2026)
"Hakim Boularbah is extremely experienced and a real pleasure to work with."
Legal 500 - EMEA (2026)
"Hakim Boularbah is extremely sharp, quick and very quickly sees where the problems are and where the discussion should go. He is extremely intelligent and I am very happy to recommend him."
Chambers & Partners - High Net Worth (2025)
"Hakim Boularbah is extremely sharp, quick and very quickly sees where the problems are and where the discussion should go. He is extremely intelligent and I am very happy to recommend him."
Chambers & Partners - Global (2025)
"Hakim Boularbah is excellent and has really built a strong practice."
Chambers & Partners - Global (2025)
"Hakim Boularbah is an outstanding professional with impressively effective legal skills with business impacts combining innovative, out-of-the-box legal thinking together with effective business sense and consequent and reliable implementation."
Legal 500 - EMEA (2025)
"Hakim Boularbah delivers consequently outstanding results. He also demonstrated impressive communication and engagement skills among a wide array of complex shareholders / stakeholders across different countries and approaches. His client commitment is second-to-none and makes him and his team immensely valuable as business partners in the most difficult and complex cases."
Legal 500 - EMEA (2025)
Hakim Boularbah is ranked as Chambers & Partners is ranked as Dispute Resolution: Litigation in Individual in Dispute Resolution: Litigation
Chambers & Partners - Global (2024)
Hakim Boularbah is ranked as Band 3 in Dispute Resolution: Arbitration
Chambers & Partners - Global (2024)
Hakim Boularbah is ranked Band 1 for Dispute Resolution: Litigation
Chambers & Partners - Europe (2024)
Hakim Boularbah is renowned for his expertise representing clients in a range of standout international litigation cases relating to shareholder disputes and risk management. He has additional expertise assisting clients with M&A-related arbitration and set-aside proceedings relating to arbitral awards.
Chambers & Partners - Europe (2024)
"Hakim Boularbah is a very good lawyer with a strong vision of his files and his clients' needs."
Chambers & Partners - Europe (2024)
"He is a very direct person who goes to the point of the matter."
Chambers & Partners - Europe (2024)
Hakim Boularbah named "Leading individual" in Dispute Resolution
Legal 500 - EMEA (2024)
"Hakim Boularbah is very sharp, focuses on the important issues and is efficient."
Chambers & Partners - Global (2023)
‘Hakim Boularbah: A strategic thinker that sees the whole field. He appreciates the business goals and develops legal strategies to match those goals. Hakim was always available for our last minute questions and provided us with real feedback on the strengths and weakness of our positions. He put together strong legal briefs and delivered winning oral arguments. Our team trusted Hakim in record time and felt comfortable litigating in the Belgium system.’
Legal 500 - EMEA (2023)
‘Hakim has also built a very strong team of associates that speak up and contribute.’
Legal 500 - EMEA (2023)
Hakim Boularbah is Band 1 ranked for Dispute Resolution: Litigation
Chambers & Partners - Global (2023)
Hakim Boularbah named "Key lawyer" in Industry focus: Healthcare and Life Sciences
Legal 500 - EMEA (2023)
Hakim Boularbah named "Leading individual" in Dispute resolution
Legal 500 - EMEA (2023)
“Hakim has a brilliant mind”
Who's Who Legal - (2023)
“He possesses very sound judgement in complex matters”
Who's Who Legal - (2023)
“Mr Boularbah is an excellent and tough opponent”
Who's Who Legal - (2023)
Hakim Boularbah is recognised as Thought Leader in Commercial Litigation
Who's Who Legal - (2023)
Hakim Boularbah is recognised as Thought Leader in GIR - Asset Recovery
Who's Who Legal - (2023)
Hakim Boularbah is recognised as Recommended in Abritration
Who's Who Legal - (2023)
Hakim Boularbah is recognised as Recommended in Asset Recovery
Who's Who Legal - (2023)
Hakim Boularbah named "Leading individual" in Dispute resolution
Legal 500 - EMEA (2022)
Ranked Band 1. Clients say that "not only is he clever and efficient, but he has the ability to make complex things simple, which is a great gift."
Chambers & Partners - Europe (2022)
Hakim Boularbah is recognised as Recommended in Commercial Litigation
Who's Who Legal - (2022)
Hakim Boularbah is Band 1 ranked for Dispute Resolution: Litigation
Chambers & Partners - Europe (2021)
One client enthuses that Boularbah is "the best lawyer I've ever met," adding: "He is fully reliable - when he gives you an opinion, you can be sure this is a bulletproof opinion." Another source notes that Boularbah is "absolutely excellent at dispute resolution."
Chambers & Partners - Europe (2021)
Hakim Boularbah named "Leading individual" in Dispute resolution
Legal 500 - EMEA (2021)
Hakim Boularbah is an absolute outstanding contention specialist, whose precision and quality of legal analysis and approaches of recommendation makes him immensely valuable as leader of our contention defense team. His proximity to the client, ability to understand business reality while still figuring out the decisive legal matters to defend client rights are second-to-none. His ability to work as team player and team leader among several high-profile legal counsels are also greatly valuable in a complex legal set-up
Legal 500 - EMEA (2021)
Ranked as Global Leader
Who's Who Legal (2021)
Peers and clients say: "He is a court procedures specialist", "He has superb advocacy skills and great knowledge", "One of the best practitioners in Brussels", "He is brilliant"
Who's Who Legal (2021)
Ranked as Thought leader
Who's Who Legal (2021)
Hakim Boularbah is looked upon with enormous favour by peers who single him out as “a specialist in cross-border litigation”.
Who's Who Legal (2021)

Hakim Boularbah

Partner - Attorney at Law

hakim.boularbah@loyensloeff.com

Brussels

French, English, Dutch

<p>Hakim Boularbah, attorney at law, is Partner and heads the Litigation & Risk Management practice group in our Brussels office. He focuses on cross-border litigation and international arbitration. He is also a member of the France Region Team and of the US Region Team.</p>

Hakim focuses on civil and corporate litigation (class actions, shareholders’ disputes, post-acquisition claims, ...), international arbitration (including proceedings related to arbitration: enforcement of arbitral awards, setting aside, interim measures, ...) and asset recovery. Hakim is one of the most renowned specialists of collective redress. He also frequently acts as counsel or arbitrator in international arbitration matters.

Hakim’s recent activities include:

• Defending Meta Platforms, Ryanair and Porsche in class action proceedings;
• Defending a major European Retail Alliance based in Brussels against the French Ministry of Economy;
• Defending AstraZeneca against the claim of the Commission and the Member States in relation with COVID-19 vaccine supply;
• Chairing ICC panel in a dispute between partners in a consortium for a construction project in Africa.