Nathalie Jalabert-Doury

Avocat au Barreau de Paris et de Bruxelles (Liste E), Nathalie Jalabert Doury est l’associée responsable de la pratique Antitrust et Concurrence du cabinet en France et co-dirige la pratique Antitrust européenne du cabinet.

Nathalie dispose d’une expertise reconnue dans les différentes procédures d’application des règles de concurrence par les autorités de concurrence au niveau européen et français.

Nathalie est notamment recommandée par l’International Who’s Who of Competition Lawyers, ainsi que par les guides Legal 500 et Chambers & Partners. Elle est l’auteur de guides sur les enquêtes de concurrence et intervient régulièrement dans le cadre de colloques dédiés au droit de la concurrence.

Nathalie est représentante non gouvernementale (NGA) de l’Autorité de la concurrence française et de l’Autorité Polynésienne de la Concurrence au sein de l’lnternational Competition Network (ICN), un réseau international réunissant plus de 100 autorités de la concurrence dans le monde dont l’objectif est de promouvoir la convergence entre les droits et les politiques de concurrence et la coopération entre ses membres, afin d'améliorer l'efficacité de la régulation de la concurrence sur le plan international. 

Antitrust investigations

Nathalie assists companies handling dawn raids and subsequent procedures by European Competition Authorities. She has published a well known guide on how legal departments need to prepare upstream for any investigation within their premises and she regularly publishes and speaks as an expert on those subjects.

Nathalie assists numerous clients in infringement cases before the European and French Competition Authorities and Courts as well as on emergency procedures and preliminary injunction cases, initiated in order to obtain access to essential facilities and from gatekeepers pre and post entry into force of the Digital Markets Act (DMA).

Recent and ongoing cases include the following:

• EU supermarkets investigation
• EU e-commerce sector investigation
• EU retail food packaging cartel investigation
• EU steel abrasives cartel case
• French bisphenol investigation
• French cartel case in the ham sector
• French investigation into the hydrocarbon separator sector
• French resale price maintenance heating case
• French cartel investigation in the dairy products sector
• French dominance investigation into the photovoltaic sector
• French resale price maintenance perfumes case
• French bid-rigging cases in the construction sector.

Clients also turn to Nathalie for the design and implementation of compliance programs and trainings. She has developed a number of tools including e-learning modules and live training materials and she regularly trains executives and directors on antitrust and anticorruption compliance.

Merger Control

Nathalie also handles a number of merger filings every year, before the EU and French Competition Authorities and she coordinates multi-filings in other jurisdictions. She notably has a long-standing practice of mergers on local markets (construction, retail, etc.) and acquired dedicated sector experience in a number of additional industries (building materials, food products, transport, luxury products, private equity, etc.)

Recent cases include the following:

• Eurazeo/Hôtels Accor
• Nocibé/Douglas
• Conforama/Fly et. Atlas
• Averys/Stow
• Worldwide Flight Services/Aviapartner
• Chequers/Provost Participations
• Activa/Armatis/Laser
• Eurovia (Vinci)/Signature and Eurovia/Tarmac
• Senoble/Agrial/Senagral.

Public procurement and regulated sectors

Acting for a number of construction and utilities companies, Nathalie also regularly advises on EU public procurement issues. She has assisted companies facing EU Commission investigations into possible infringement to the procurement directives.

Nathalie also regularly handles state aids and antitrust cases in regulated industries (energy, media and entertainment, etc.).

Continually recommended by the legal directories:

2024

• Ranked in Chambers Europe  – Competition/European Law – France. Client say "Nathalie Jalabert-Doury is a great lawyer who is always available and extremely reactive. She knows how to deliver advice and pragmatic recommendations. She is business-oriented in sometimes very tight deadlines." 
• Ranked among the Leading Individuals by Legal 500 EMEA in EU, Competition and Distribution – France.
• Recommended as Global Leader, peers and clients say: "Nathalie is an excellent lawyer"; "I find Nathalie to be a highly impressive competition specialist".
• Recommended as National Leader in France, WWL say that “Nathalie Jalabert-Doury is a renowned competition specialist who earns praise from peers and clients alike for her extensive knowledge, creative problem solving and superb client service skills.”

2023

• Ranked in Chambers Europe (2023) – Competition/European Law - France, Nathalie Jalabert-Doury is noted for her experience in cartel investigations, merger control and distribution mandates. She additionally assists clients with appeals against authority decisions and state aid issues. Clients say: "Nathalie Jalabert-Doury is extremely talented, straightforward, always available and strategy-oriented."
• Ranked among the Leading Individuals by Legal 500 EMEA (2023) in EU, Competition and Distribution - France
• Recommended as National Leader, WWL says that "Nathalie Jalabert-Doury is a renowned competition specialist who earns praise from peers and clients alike for her extensive knowledge, creative problem solving and superb client service skills."  Who's Who Legal France - Competition (2023)
• The antitrust team of Mayer Brown is also recommended as a top 25 global elite firm by GCR 100 (2023)

2022

• Recommended as Global Leader, peers and clients say : "Nathalie has a great ability to work with in-house lawyers". "She is strategic and understands the issues at stake". Who's Who Legal Competition (2022)
• Recommended as National Leader, WWL says that "Nathalie Jalabert-Doury has built up an impressive competition practice which regularly handles cartel, abuse of dominance and merger cases."Who's Who Legal France - Competition (2022)
• The antitrust team of Mayer Brown is also recommended as a top 25 global elite firm by GCR 100 (2022)
• Ranked in Chambers Europe (2022) in Competition/European Law - France, Nathalie Jalabert-Doury is noted for her experience in abuse of dominance, cartel investigations, merger control and distribution mandates. She is an "excellent technician, responsive and someone who explains cases well” according to sources. 
• “Nathalie Jalabert-Doury heads the competition law department and is excellent in her analysis and recommendations which are not only very technical and up to date with current events, but also very adapted to the operational constraints of a company.” Legal 500 EMEA (2022) EU, Competition and Distribution - France
• “Beyond the technical competence of files, Nathalie Jalabert-Doury has the ability to be a real support for the management of a very complex file with a multitude of stakeholders with different visions and interests.” Legal 500 EMEA (2022) EU, Competition and Distribution - France
• Recommended in Competition & Antitrust, France by Euromoney’s 2022 "Women in Business Law Guide”

2021

• Recommended as Global Leader, peers and clients say :“Nathalie is an excellent competition lawyer”. “She has superb knowledge and is always available for her clients.” Who's Who Legal Competition (2021)
• Recommended as National Leader, Nathalie Jalabert-Doury is celebrated for her "impressive experience in competition matters" and "strong international awareness.” Who's Who Legal France - Competition (2021)
• Ranked by Chambers Europe (2021) Competition/European Law - France, Nathalie Jalabert-Doury  is praised for being a "very strong practitioner" by sources. 
• "Nathalie Jalabert Doury is a very knowledgeable lawyer with a very pragmatic working approach. Very available and engaged." as well as "Nathalie Jalabert Doury is efficient and competent. She responds with pragmatism and transparency." Legal 500 EMEA (2021) EU, Competition and Distribution - France
• Recommended  in Competition & Antitrust, France by Euromoney’s 2021 "Women in Business Law Guide”

2020

• "Nathalie Jalabert-Doury has 'excellent knowledge and skills' in competition law, along with a 'very good client network in this area'”  Who's Who Legal (2020)
• "Very good lawyer that understands the work of the company and the legal environment.” Chambers Europe (2020) Competition/European Law - France

2019

• The team lead by Nathalie Jalabert-Doury was awarded with the 2019 Silver Trophy for its Antitrust work at the annual ceremony of Les Trophées du Droit, one of the most prestigious awards competitions in France, (Leaders League) 
• Nathalie Jalabert-Doury has been acknowledged among the 40 in their 40s Notable Women Competition Professionals in Europe.

2018

• "Nathalie Jalabert-Doury of Mayer Brown is a ‘brilliant ‘ competition lawyer and is highly recommended by clients who appreciate her ‘fast, precise and customer-oriented service’." Who’s Who Legal (2018)
• The edition of Expert Guides : Women in Business Law has recognized Nathalie Jalabert Doury as one of the leading Competition & Antitrust practitioners in the world. (2018)
• “Nathalie Jalabert Doury ‘is always available and gives fast, operational and appropriate help’.” Legal 500 EMEA (2018) EU, Competition and Distribution - France
• “Nathalie Jalabert Doury of Mayer Brown LLP attracts positive feedback from clients who describe her as ‘very practical and thoughtful’ and commend her availability and ‘perfect knowledge of the file’." Chambers Europe (2018) Competition/European Law - France

2017

• The edition of Décideurs, a French media and rating agency for top executives has recognized Nathalie Jalabert-Doury as "Excellent" in Antitrust. (2017).
• The 7th Edition of Expert Guides : Women in Business Law has recognized Nathalie Jalabert Doury as one of the leading Competiton & Antitrust practitioners in the world. (2017)
• "Nathalie Jalabert-Doury skilfully handles matters including mergers, dominance claims and private enforcement proceedings”. Who’s Who Legal (2017)
• Nathalie Jalabert-Doury of Mayer Brown LLP is described as competent, available, relevant.Her practice covers all the traditional areas of competition law, such as mergers, abuses of dominance, state aid and dawn raids. Chambers Europe (2017)
• Practice head Nathalie Jalabert-Doury is always available, reliable and customer-oriented." Legal 500 EMEA (2017) EU, Competition and Distribution - France.
• "Nathalie Jalabert-Doury of Mayer Brown LLP heads the competition team and handles a range of matters within the sector, including abuses of dominance, mergers, state aid and dawn raids. She recently advised ONO Packaging in relation to fines resulting from a cartel investigation." Chambers Global (2017).

2016

• The edition of Best Lawyers, a peer review guide to the legal profession has recognized Nathalie Jalabert-Doury as one of the leading Competition / Antitrust Law and European Union Law practitioners in the world since 2011. (2016).
• "Nathalie Jalabert-Doury of Mayer Brown LLP heads the competition team and handles a range of matters within the sector, including abuses of dominance, mergers, state aid and dawn raids. She recently advised ONO Packaging in relation to fines resulting from a cartel investigation." Chambers Europe (2016) Competition/European Law - France
• "Nathalie Jalabert-Doury never abdicates decisions and defends every inch of ground." Legal 500 EMEA (2016) EU, Competition and Distribution - France
• "Nathalie Jalabert-Doury, head of Mayer Brown’s competition practice in Paris, handles prominent merger filings and antitrust investigations before the EU and French Competition Authorities. One client was impressed by her thorough command of highly complicated and technical issues". Who’s Who Legal (2016).
• The 6th Edition of Expert Guides : Women in Business Law has recognized Nathalie Jalabert-Doury as one of the leading Competition & antitrust practitioners in the World. (2016)
• The edition of Décideurs, a French media and rating agency for top executives has recognized Nathalie Jalabert-Doury as "Excellent" in Antitrust. (2016)

2015

• The edition of Best Lawyers, a peer review guide to the legal profession has recognized Nathalie Jalabert-Doury as one of the leading Competition / Antitrust Law and European Union Law practitioners in the world since 2011. (2015).
• "Nathalie Jalabert-Doury of Mayer Brown LLP is best known for representing clients in cartel investigations and antitrust litigation cases. She is described by one source as a solid competition lawyer and a sure bet." Chambers Global (2015).
• "Always available". Legal 500 EMEA (2015) EU, Competition and Distribution - France.
• The 5th edition of Expert Guides: Women in Business Law has recognized Nathalie Jalabert-Doury as one of the leading Competition & antitrust practitioners in the World. (2015)
• The edition of Décideurs, a French media and rating agency for top executives has recognized Nathalie Jalabert-Doury as "Excellent" in Antitrust. (2015)

2014

• The edition of Best Lawyers, a peer review guide to the legal profession has recognized Nathalie Jalabert-Doury as one of the leading Competition / Antitrust Law and European Union Law practitioners in the world since 2011. (2014).
• "Clients say that she is very tenacious and has good contacts with the authorities, and lots of innovative ideas." Chambers Global (2014)
• "Nathalie Jalabert-Doury of Mayer Brown LLP is well known in the competition law community and holds a number of positions. She has particular experience of advising on dawn raids and compliance programmes." Chambers Europe (2014) Competition/European Law - France.
• "She is recommended for "her in-depth knowledge of competition proceedings and investigation procedures and strong antitrust and cartel experience" and for "combining legal expertise with the ability to see the big picture." Legal 500 EMEA (2014) EU, Competition and Distribution - France.
• L’activité est dirigée par Nathalie Jalabert-Doury qui combine "une bonne expertise juridique et la capacité de comprendre et d’apprécier les problématiques en jeu de manière globale." Legal 500 Paris (2014).

• Université Paris X Nanterre
• Université Paris I Panthéon-Sorbonne

• Paris
• Bruxelles (Liste E - Ordre Francais des Avocats au Barreau de Bruxelles)

• Anglais
• Français

• Représentante non gouvernementale (NGA) de l’Autorité de la concurrence française et de l’Autorité Polynésienne de la Concurrence au sein de l’lnternational Competition Network (ICN).