Firm Profile > McDermott Will & Emery AARPI > Paris, France

McDermott Will & Emery AARPI
75007 PARIS

Industry focus: Healthcare and life sciences Tier 1

McDermott Will & Emery AARPI is an excellent choice for strategic M&A, venture and partnerships transactions in the healthcare sector. The firm advises a large client base, made up of established pharmaceutical groups, biotech companies and investors, and manages a high volume of transactions. Practice head Emmanuelle Trombe and Anthony Paronneau are the key contacts.

Practice head(s):

Emmanuelle Trombe 

Other key lawyers:

Key clients



Innate Pharma

Vivet Therapeutics

Pierre Fabre

DBV Technologies



Yukin Therapeutics

Keen Eye

Kurma Partners


Advent Biotechnology

PDCLine Pharma

Administrative and public law Tier 3

McDermott Will & Emery AARPI's five-lawyer team has strong regulatory expertise, especially when it comes to tackling key matters in the energy, telecoms and transport sectors. The practice assists several major state-owned companies, as well as leading French and international operators. The firm is notably assisting a foreign new entrant in connection with the opening of the French regional railway sector market. It is also handling a strategic regulatory dispute in the telecoms area. Finally, the practice also advises on public sector procurement contracts. Sabine Naugès and Laurent Ayache co-head the practice.

Practice head(s):

Sabine Naugès; Laurent Ayache

Key clients

Action Logement Groupe


Arriva Plc


Corsica Ferries



Ideal Industries

IPC Petroleum




Banking and finance: transactional work Tier 3

McDermott Will & Emery AARPI works predominantly in the growing European fund finance market and on the French acquisition and leveraged finance mid-market. It has specialist expertise in key areas, notably equity bridge financing and private equity deals. The practice is driven by sole partner Pierre-Arnoux Mayoly, who is ably supported by senior associate Shirin Deyhim. Mayoly is a key practitioner for lenders and borrowers active in the equity bridge market in Paris. He counts Tikehau Capital and Citi Bank among his clients.

Practice head(s):

Pierre-Arnoux Mayoly

Key clients

Five Arrows Direct Lending

Tikehau Capital


Andera Partners

RBC Royal Bank

Citi Bank

Dispute resolution: Commercial litigation Tier 3

McDermott Will & Emery AARPI  handles product liability and commercial cases for major French and international companies. The practice also acts in litigation relating to shareholder conflicts and the termination of managers. Practice head Alexis Werl and Aymeric Discours are recommended.

Practice head(s):

Alexis Werl; Aymeric Discours

Dispute resolution: White-collar crime Tier 3

McDermott Will & Emery AARPI handles handling fraud, corruption and doping cases, as well as matters related to the political sphere. Practice head Alexis Werl represents major financial institutions, corporations, former members of the French government, top executives and private investors.

Practice head(s):

Alexis Werl

Key clients

Crédit Immobilier de France

Insolvency Tier 3

McDermott Will & Emery AARPI's Timothée Gagnepain assists debtors, buyers, creditors and shareholders. Gagnepain acts in French restructuring and insolvency proceedings and regularly advises on cross-border cases. He also assists private equity funds and industrial companies with the takeover of distressed companies and handles related litigation. He was recently involved in several landmark cases.

Practice head(s):

Timothée Gagnepain

Key clients


Groupe Rougier

Groupe Grégoire

Bpifrance Financement

Groupe Almage

Ballouhey SAS

Bpifrance Investissement

Prudentia Capital

Amundi Private Equity Funds


Compagnie Marco Polo

Weber Automotive

Soleytanche Freyssinet

Comité National Olympique et Sportif Français

Private equity: LBO Tier 3

McDermott Will & Emery AARPI

Practice head(s):

Grégoire Andrieux; Henri Pieyre de Mandiargues

Key clients

Montefiore Investment







Péchel Industries

Activa Capital

Quilvest PE


Eurazeo PME


Argos Wityu


Antin Infrastructure

Platina Partners


Five Arrows Private Equity


MBO Partenaires




Galiena Capital


IK Investment Partners


Hana Group

Atlas For Men





Group Label


Tax Tier 4

Led by Antoine Vergnat, McDermott Will & Emery AARPI's tax practice has particular strength in advising on the structuring of M&A and private equity transactions in which the firm is involved. The team assists investment funds and several pharmaceutical and healthcare companies. It is adept at handling cross-border tax matters, often involving a US component, and has expertise in capital markets deals. The team also provides standalone tax advice to companies on tax restructuring and litigation.

Practice head(s):

Antoine Vergnat

Key clients


DBV Technologies



Vivet Therapeutics


Innate Pharma




The firm: McDermott Will & Emery partners with leaders around the world to fuel missions, knock down barriers and shape markets. With 20 locations on three continents, our team works seamlessly across practices, industries and geographies to deliver highly effective—and often unexpected—solutions that propel success. More than 1,100 lawyers strong, we bring our personal passion and legal prowess to bear in every matter for our clients and the people they serve.

Areas of practice: The Paris office plays an important role for the firm internationally, helping French businesses strengthen their positions domestically, throughout Europe, the Middle East, Africa and around the world. The Paris lawyers also advise foreign and multinational investors, companies and financial institutions seeking to enter the marketplace in France. As part of an international network of collaborative lawyers, McDermott’s professionals share ideas on trends and key developments in law and on the numerous industries in which its clients operate, resulting in seamless, multidisciplinary service to its clients.

The team advises clients across numerous areas of law, including corporate, mergers and acquisitions, private equity, securities and listing transactions, corporate restructuring and bankruptcy law. The team represents clients in a wide range of industry sectors including, but not restricted to, energy (with an emphasis on projects in Africa), tour operating and telecommunications. The Paris energy practice is a dedicated team of lawyers with a strong sector focus on energy, oil and gas, and related areas such as natural resources and commodities. The team advises energy producers and traders in the US, Europe, Africa, the Middle East and Asia. The Paris lawyers also counsel clients on matters involving general commercial law, with a focus on the pharmaceutical, life sciences, medical device, biotech and healthcare industries. The dispute resolution lawyers advise on international arbitration and public law, and counsel on behalf of companies in civil, criminal and administrative matters. The employment practice advises businesses on issues such as termination, discrimination, harassment, restrictive covenant breaches, strikes and other collective conflicts, and counsels clients on the labour and employment aspects of domestic and transnational commercial matters. Furthermore, the Paris lawyers advise on the full range of EU competition issues, litigation and international tax issues. With a diversified business practice, the firm represents a wide range of commercial, industrial and financial enterprises, including publicly traded and privately held companies.

The Paris team and individual lawyers are recognised for the quality, consistency and creativity of their legal counsel. As part of a global, full-service law firm, the lawyers of the Paris office are prepared to help clients wherever their business interests take them.

Department Name Email Telephone
Corporate Jacques Buhart
Corporate Jonathan Wohl
Corporate Thibaud Forbin
Corporate Bertrand Delafaye
Corporate Nicolas Lafont
Mergers and acquisitions Thibaud Forbin
Mergers and acquisitions Bertrand Delafaye
Antitrust and competition Jacques Buhart
Tax Antoine Vergnat
Employment Jilali Maazouz
EU competition Jacques Buhart
Litigation Alexis Werl
Litigation Laurent Ayache
Public law, regulatory and government strategies Sabine Naugès
Energy, project finance, Africa Jean-Claude Petilon
Private equity Henri Pieyre de Mandiargues
Private equity Carole Degonse
Health, life sciences Emmanuelle Trombe
Health, life sciences Anthony Paronneau
Banking and finance Pierre-Arnoux Mayoly
Intellectual property Laura Morelli
Privacy & Cybersecurity Romain Perray
Capital Markets David Revcolevschi
Capital Markets Bertrand Delafaye
Photo Name Position Profile
Mr Grégoire Andrieux  photo Mr Grégoire Andrieux
 Laurent Ayache  photo Laurent Ayache
Mr Jacques Buhart  photo Mr Jacques Buhart
Ms Carole Degonse  photo Ms Carole Degonse
Ms Shirin Deyhim  photo Ms Shirin Deyhim
Mr Aymeric Discours.  photo Mr Aymeric Discours.
Mr Timothée Gagnepain  photo Mr Timothée Gagnepain
Mr Lionel Lesur  photo Mr Lionel Lesur
Mr Jilali Maazouz  photo Mr Jilali Maazouz
Mr Pierre-Arnoux Mayoly  photo Mr Pierre-Arnoux Mayoly
Ms Sabine Naugès  photo Ms Sabine Naugès
Mr Anthony Paronneau  photo Mr Anthony Paronneau
Mr Henri Pieyre de Mandiargues  photo Mr Henri Pieyre de Mandiargues
Ms Emmanuelle Trombe  photo Ms Emmanuelle Trombe
Mr Antoine Vergnat  photo Mr Antoine Vergnat
 Alexis Werl photo Alexis Werl
Number of lawyers : 1100
at this office : 71
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Strategic alliance with MWE China Law Offices
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