DS Avocats > Paris, France > Firm Profile

DS Avocats
75116 PARIS

France > Environment Tier 1

The environment team at DS Avocats is led by Patricia Savin, who has extensive experience in environmental law matters, from biodiversity and brownfield development to sustainability and the circular economy. The practice also advises on related issues such as health and safety and hygiene, and coordinates with the firm’s real estate department to assist on development and redevelopment projects. Yvon Martinet is a key contact for industrial risk work, while Raphaël Romi has expertise in renewable energy. Grégory Gutierrez, Laura Ceccarelli-Le Guen and Gwladys Beauchet are also noted.

Practice head(s):

Patricia Savin


‘Excellent team. Very specialised in the environment in the broad sense and in CSR, including social aspects, and therefore very complete with regard to the challenges facing large companies.’

‘Expertise and responsiveness.’

‘Strength of advice and analysis of possibilities.’

‘Laura Ceccarelli-Le Guen stands out for her advice and opening up solutions.’

‘Gwladys Beauchet keeps great proximity to the client. Listening. Reliability of work and appach. Excellence and professionalism. Very dynamic.’

Key clients









Work highlights

  • Advised FNAC DARTY Participations during an environment audit.
  • Assisted EIFFAGE Construction and EIFFAGE Aménagement in the context of various construction projects involving waste issues (excavated earth from earth-moving operations, traceability of construction site waste, and on-site waste storage).
  • Assisted ROCHE in litigation following a summons for forced intervention within the framework of an expropriation procedure.

France > Construction Tier 2

Construction law expert Stéphane Gasne and marked specialist in judicial proceedings in this area, Hélène Laborde, co-lead the practice at DS Avocats. The team’s developing catalogue of significant clients is formed of such French groups as Pichet, and it regularly advises on the planning, contract and development stages of a broad range of high-value construction projects. Atop its French practice, the team is notably advising the CNPE consortium on Iter, an ambitious, large-scale international nuclear energy project. It is also increasingly handling green matters and is assisting on an offshore wind farm project at present.

Practice head(s):

Stéphane Gasne; Hélène Labord

Other key lawyers:

Jean-Marc Loncle; Jordan Sochay


‘The team offers great expertise, availability and attentiveness, alongside a high quality of advice in its own areas. They have perfect understanding of the issues, respond to complex questions, and make appropriate arrangements therein.’

‘A responsive and competent team.’

Key clients







Work highlights

  • Advised Pichet and Legendre groups concerning the monitoring of all construction sites relating to the construction of the Athletes’ Village on Ile Saint Denis.
  • Supported Emerige in the context of a complex contractual arrangement relating to the completion of an exceptionally large program involving nearly 500 new homes.
  • Assistance to Credit Agricole in the drafting of the project management contract for the renovation of its headquarters.

France > Administrative and public law Tier 3

DS Avocats has a wide range of public law and urban planning experience and practitioners operating from the firm's Paris and Lyon offices. The firm has a large dedicated team that assists a broad range of clients, including public and private sector entities. The practice stands out for its high-level know-how in the field of urban planning and development. Large developers, companies and public entities are clients. The firm advises on several major urban renewal projects, notably around Paris, and also assists with the construction of large logistics and warehouse buildings. Recently, the practice has also been retained to advise on the completion of France’s first industrial carbon storage project. The practice is led by Frédéric Lévy and Jean-Marc Poisson; and also includes David GuillotLaura Ceccarelli-Le GuenMichaël Moussault and Nathalie Sultan.

Practice head(s):

Frédéric Lévy; Jean-Marc Poisson


‘The partners are available, very responsive to concerns and exchanges take place in a very friendly atmosphere. Their advisory role is also particularly appreciated. The strength of the team is based on very high-level experts in all the areas covered and cross-skills in public law/private law, which are essential for land issues.’

‘Laura Ceccarelli-Le Guen is particularly brilliant in operational town planning, a subject that has become particularly complex with the abundance of regulations.’

‘Reactive, good listening skills and comprehensive answers.’

‘Good team spirit.’

‘Very good responsiveness’.

‘David Guillot: very quick and exhaustive permit audit skills. Laura Ceccarelli-Le Guen: very good summary of procedures in a very complex legal context’.

‘Laura Cecarrelli-Le Guen shows great availability and has great expertise in town planning law in particular. She is pragmatic, with an operational approach to the issues.’

‘Proximity; and good advice.’

Key clients


Altitude Infrastructure

Banque des Territoires (Groupe CDC)


Communauté d’Agglomération du LIbournais

Communauté Intercommunale du NOrd de la Réunion

Crédit Agricole Immobilier


Eiffage Immobilier


Etablissement Public d‘Aménagement de Marne La Vallée

Etablissement Public d‘Aménagement Paris Saclay

Etablissement Public d’Aménagement Orly-Rungis-Seine-Amont

Etablissement Public Foncier d’Ile-de-France

Etablissement Public Foncier Provence-Alpes-Côte-d’Azur


Grand Paris Aménagement

Groupe Alsei

Groupe IDEC

Groupe Interconstruction

Groupe La Poste

Groupe SNCF

Hauts-de-Seine Department

IKEA France

Ile-de-France Mobilités


Mondial Protection

Orange France

Saône et Loire Department

Seine-Saint-Denis Department

SEM Pariseine

SEM Plaine Commune Développement

Sequano Aménagement

Société du Grand Paris (SGP)

SPL PariSeine

Syndicat Mixte pour l’Aménagement de la Plaine de Pierrelaye-Bessancourt


Télévision de France (TDF)


Val de Seine Aménagement


Vinci Immobilier

Virtuo Industrial Property

Yvelines Department

Work highlights

  • Assisting the Etablissement Public d’Aménagement Paris Saclay with all matters relating to sustainable development, management of environmental issues, land ownership and building construction.
  • Advising EQIOM, a subsidiary of an Irish international group of diversified building materials businesses, CRH plc, on the first industrial carbon capture storage project in France.
  • Assisting EPA France (Établissement public d’aménagement France) with the completion of the Marne-la-Vallée development project.

France > Industry focus: Energy Tier 3

DS Avocats

Practice head(s):

Véronique Fröding; Stéphane Gasne; Grégory Gutierrez

Other key lawyers:

Jean-Marc Loncle; Raphaël Romi

Key clients

Breeze Three Energy








Fnac Darty







Rencore Energy


Siemens Gamesa Renewable Energy

STEAG New Energies



Vergnet Hydro

World Bank

Work highlights

  • Advising on the first industrial carbon capture storage in France, which would be one of the first of its kind in Europe.
  • Advised FNAC Darty on the drafting, negotiation and execution of a greenfield Corporate PPA with a renewable energies developer, relating to a 20MW PV plant.
  • Advising Vergnet Hydro in the context of the negotiation with the government of Ivory Coast for the delivery and installation of 1,000 hybrid solar water pumps.

France > Industry focus: IT and internet  Tier 3

A particular focus of the team’s workload at DS Avocats is advising clients on the drafting, negotiation and implementation of IT contracts, often with digital service providers, for its key clients. It is also equipped to handle disputes regarding such issues as software infringement. Sylvain Staub and Antoine Gravereaux are at the helm of the practice, which is formed of partners with particular specialisms in IP law.

Practice head(s):

Sylvain Staub; Antoine Gravereaux

Other key lawyers:

Catherine Verneret; Charles-Antoine Joly; Bertrand Potot


‘Thomas Beaugrand knows how to make digital and IT law very clear and simple, and has a very good knowledge of the environment and the contracts offered by publishers, alongside a very pragmatic vision of contracts and negotiations.’

‘Thomas Beaugrand is very responsive, works quickly and makes complicated concepts very simple.’

France > Insurance Tier 3

Backed by the combined bench strength of 22 offices in 13 countries, the DS Avocats team in Paris advises French and international insurers and reinsurers (including Allianz and AXA XL), intermediaries, industrial groups and major corporates in the aviation sector (such as Air France) on a diverse spectrum of insurance matters. Headed by Safine Hadri, an expert in the management of industrial risk, and supported by coverage dispute specialist Benjamin Potier, the group assists with civil and product liability claims, regulatory compliance, and the development of policies and agreements, as well as complementary employee plans.

Practice head(s):

Safine Hadri

Other key lawyers:


‘The DS Avocats insurance team brings together lawyers who provide pragmatic solutions, particularly in the context of relationships with the supervisory authorities.’

‘Safine Hadri is an available specialist who provides effective assistance in insurance law issues and dealings with the competent supervisory authorities.’

Key clients

Galian Assurances/Galian Courtage

ANCDGP -Refrome Du Courtage

Ornikar Assurance

Air France

Oppens Société Générale

Beazley (Lloyds)

Global Aerospace

Brachot Hermant SAS

Amtrust (Lloyds)

Orca Systemes


Fashion Cube


XL Insurance Company (AXA Group)

Allianz Global Corporate & Specialty


Work highlights

  • Assisted the ANCDGP, the national association of asset management consultants, in litigation before the Council of State and the Constitutional Council relating to the reform of the brokerage system.

France > Intellectual property: Trade marks and designs Tier 3

Acting at the crossroads of IP, digital technology and data law, DS Avocats assists clients with the creation, management and protection of trade mark portfolios. Partnership, licence, distribution and R&D agreements are all part of the firm’s commercial IP offering. Catherine Verneret, who advises distributors, fashion and perfume brands, and industrial design clients among others, is frequently instructed on contentious matters revolving around trade mark infringements and misuse of domain names, pleading cases before the French and European courts.

Practice head(s):

Catherine Verneret

Other key lawyers:

Jean-Baptiste Micard

Key clients



Société de Gestion Pierre Cardin




Le Louvre


Manufacture Joseph Duclos

YEGO Urban Mobility


Optimum Automotive

Institut Français de la Mode

Groupe BEL

Work highlights

  • Advised EDF on its partnership with the Olympic Committee for the 2024 Olympics.
  • Advised Le Louvre Museum on the protection of LOUVRE trade marks worldwide.
  • Represented Carrefour in trade mark litigation proceedings before the General Court of the European Union relating to the validity of a three-dimensional trade mark.

France > Dispute resolution: Commercial litigation Tier 4

Practice head(s):

Arnaud Constant

Other key lawyers:


‘Very available.’

‘Arnaud Constant is able to adapt to interlocutors of different levels, to very diverse sectors and complex legal situations.’

Key clients



Agence Française de développement




SNCF Voyageurs


ASL Airlines France
























Work highlights

  • Representing the state of BENIN in connection with the exequatur on the French territory of several arbitrational decisions.
  • Representing Landsbanki Bank and its liquidator in toxic loans proceedings initiated by borrowers.
  • Representing SNCF VOYAGEURS and FRET SNCF in the Paris Court of Appeal in the context of a dispute over a railway disaster in Zoufftgen resulting in several deaths.

France > EU, competition and distribution Tier 5

DS Avocats boosted its team in 2022 with the hire of Françoise Brunagel and Olivier Gauclère, who joined from VIGINTI and advise automotive clients on matters including litigation and distribution. A highlight of the practice’s work is Xavier Lacaze’s representation of Eiffage Infrastructures in a long-running follow-on damages case related to the trucks cartel, involving requesting the disclosure of documents from the European Commission. Lecaze also advises third parties on competitors’ antitrust investigations and mergers. Fabrice Van Cauwelaert‘s practice includes private enforcement actions and merger control issues.

Practice head(s):

Xavier Lacaze

Key clients





Work highlights

  • Advised EIFFAGE Infrastructures on gaining disclosure of documents from the European Commission regarding the trucks cartel, after suffering anti-competitive damage.
  • Advised ACTIS, a company specialised in thermal insulation, which considered itself to be the victim of practices to drive it out of the market of the thermal insulation of buildings.
  • Assisting with the competition aspects of AMP Visual TV’s takeover of the video-mobile activities of Euromedia.

Founded in Paris 50 years ago, DS Avocats is one of the leading independent law firms in France with a global presence on 4 continents.

Since the 1980’s, DS Avocats operates on the Asian continent (China, Singapore, Vietnam) where it facilitates the expansion of European companies into the Asian market.

Since then, the firm has intensified its international development: currently, DS also has offices in Germany, Belgium, Spain and Italy; in Africa (Morocco, Senegal); and in the Americas (Canada, Argentina, Chile, Peru).

Today, around 400 lawyers provide their global clients with in-depth expertise in both public and private business laws. DS’s clients consider this dual expertise a major asset as it enables DS’s legal professionals to bring unique perspectives to best serve their clients’ interests worldwide.

The firm’s areas of practice are: public business law; urban development and planning strategies; real estate law; environmental law and sustainable development; contract and commercial litigation; commercial, competition, distribution and consumer law; intellectual property and innovation law; computer and digital law; data protection; corporate law, mergers and acquisitions, and financing; restructuring; tax law; labour law; banking and finance; as well as energy law, health law, customs and international trade and insurance and industrial risks.

Department Name Email Telephone
Business Development Victor Cowey bd@dsavocats.com +33 01 53 67 61 35
Head of Business Development Lionel Deschaux bd@dsavocats.com +33 1 53 67 68 05
Photo Name Position Profile
Monique Ambal photo Maitre Monique Ambal Partner
Gwladys Beauchet photo Maitre Gwladys Beauchet Partner
Christophe Billet photo Maitre Christophe Billet Partner
Florence Bouthillier photo Maitre Florence Bouthillier Partner
Catherine Brun-Lorenzi photo Maitre Catherine Brun-Lorenzi Of Counsel
Arnaud Burg photo Maitre Arnaud Burg Partner
Laura Ceccarelli-Le Guen photo Maitre Laura Ceccarelli-Le Guen Partner
Claire Champion photo Maitre Claire Champion Partner
Benoît Charrière-Bournazel photo Maitre Benoît Charrière-Bournazel Partner
Daniel Chausse photo Maitre Daniel Chausse Former Chairman
Arnaud Constant photo Maitre Arnaud Constant Partner
Jean-Claude Drié photo Maitre Jean-Claude Drié Partner
Sophie Dumon Kappe photo Maitre Sophie Dumon Kappe Partner
Olivier Fages photo Maitre Olivier Fages President
Véronique Fröding photo Maitre Véronique Fröding Partner
Jean-Charles Gancia photo Maitre Jean-Charles Gancia Partner
Stéphane Gasne photo Maitre Stéphane Gasne Partner
Frédéric Godard-Auguste photo Maitre Frédéric Godard-Auguste Partner
Antoine Gravereaux photo Maitre Antoine Gravereaux Partner
David Guillot photo Maitre David Guillot Partner
Grégory Gutierrez photo Maitre Grégory Gutierrez Partner
Safine Hadri photo Maitre Safine Hadri Partner
Patricia Jeannin photo Maitre Patricia Jeannin Partner
Charles-Antoine Joly photo Maitre Charles-Antoine Joly Partner
Hélène Laborde photo Maitre Hélène Laborde Partner
Xavier Lacaze photo Maitre Xavier Lacaze Partner
Arnaud Langlais photo Maitre Arnaud Langlais Partner
Sébastien Legrix de La Salle photo Maitre Sébastien Legrix de La Salle Partner
Frédéric Lévy photo Maitre Frédéric Lévy Partner
Clémentine Liet-Veaux photo Maitre Clémentine Liet-Veaux Pre-Partner
Jérôme Lombard-Platet photo Maitre Jérôme Lombard-Platet Partner
Yvon Martinet photo Maitre Yvon Martinet Partner
Marie-Christine Mergny photo Maitre Marie-Christine Mergny Of Counsel
Olivier Monange photo Maitre Olivier Monange Partner
Michaël Moussault photo Maitre Michaël Moussault Partner
Thomas Obajtek photo Maitre Thomas Obajtek Partner
Christian Pascoet photo Maitre Christian Pascoet Partner
Jean-Marc Peyron photo Maitre Jean-Marc Peyron Partner
Chiara Poggi Ferrero photo Maitre Chiara Poggi Ferrero Partner
Benjamin Potier photo Maitre Benjamin Potier Partner
Bertrand Potot photo Maitre Bertrand Potot Partner
Jean-Luc Raffy photo Maitre Jean-Luc Raffy Partner
Lubomir Roglev photo Maitre Lubomir Roglev Partner
Paul-Antoine Saint-German photo Maitre Paul-Antoine Saint-German Partner
Jean-Marie Salva photo Maitre Jean-Marie Salva Partner
Patricia Savin photo Maitre Patricia Savin Partner
Sylvain Staub photo Maitre Sylvain Staub Partner
Nathalie Sultan photo Maitre Nathalie Sultan Partner
Bernard Tézé photo Maitre Bernard Tézé Partner
Audrey Touret-Huygens photo Maitre Audrey Touret-Huygens Partner
Marie Trécan photo Maitre Marie Trécan Partner
Fabrice Van Cauwelaert photo Maitre Fabrice Van Cauwelaert Partner
Catherine Verneret photo Maitre Catherine Verneret Partner
Martine Zervudacki-Farnier photo Maitre Martine Zervudacki-Farnier Of Counsel
Number of partners : 50
Number of lawyers : 400
Lexwork International
Your contact : Lionel Deschaux (bd@dsavocats.com)
Headquarter : Paris
Other offices : Barcelona
Other offices : Beijing
Other offices : Bordeaux
Other offices : Brussels
Other offices : Buenos Aires
Other offices : Dakar
Other offices : Ho Chi Minh City
Other offices : Lille
Other offices : Lima
Other offices : Lyon
Other offices : Madrid
Other offices : Milan
Other offices : Montreal
Other offices : Quebec
Other offices : Santiago
Other offices : Shanghai
Other offices : Singapore
Other offices : Stuttgart
Other offices : Toronto
Other offices : Vancouver
Other offices : Casablanca
Other offices : Ottawa

CLIENT: Lamine LO, Director
COMPANY/FIRM: Ministry of Economy, Planning and Cooperation of Senegal
TESTIMONIAL: “The Finance and PPP Department of the Ministry of Economy, Planning and Cooperation of Senegal highly appreciated DS Avocats’ knowledge of the Senegalese business environment and legal framework, as well as the quality of the work provided throughout the assignment. The responsiveness and flexibility of the team were also particularly appreciated in view of the deadlines, which were sometimes quite tight. The assistance of DS Avocats was decisive in achieving this new and innovative PPP framework.”

TESTIMONIAL: “The expertise and pragmatic support of DS Avocats enabled us to successfully assert our determination to meet our environmental and social obligations before the authorities and the courts.”

CLIENT: Lamine LO, Director
ENTREPRISE/CABINET : Ministère de l’économie, du plan et de la coopération du Sénégal
APPRECIATIONS : “La Direction des Finances et des PPP du Ministère de l’Économie, du Plan et de la Coopération du Sénégal a fortement apprécié la maîtrise par DS Avocats de l’environnement des affaires et du cadre juridique sénégalais, ainsi que la qualité du travail fourni tout au long de la mission. La réactivité et la flexibilité de l’équipe ont également été particulièrement appréciées au regard des délais, parfois très courts. L’assistance de DS Avocats a été déterminante dans la réalisation de ce cadre de PPP nouveau et innovant.”

APPRECIATIONS : “L’expertise et l’accompagnement pragmatique de DS Avocats nous ont permis de faire valoir avec succès notre volonté de respecter nos obligations environnementales et sociales auprès des autorités et des tribunaux.”

Pro Bono

Every year since 2013, DS Avocats has been welcoming 12 students from two secondary schools in the Paris region classified as priority education zones: Edouard Vaillant (Gennevilliers 92) and Camille Claudel (Paris 13).

We support these students throughout the school year, which is marked by two important steps :

  • step 1: an internship to observe the professional world at the firm in the fall
  • step 2: an eloquence contest at the end of May.

Process :

  • The Pro Bono Mission selects the topics proposed by the members of the firm.
  • Motivation letters from the student candidates: 6 students from each college are admitted to the internship.
  • At the firm, each student is supervised by a referent (associate) and mentored by an associate.
  • Choice and preparation of the subjects for the competition, supervised by the teachers, the referents, and the mentors.
  • Rehearsals are conducted at the firm.
  • The Ordre des Avocats Library hosts the eloquence contest: each student has 10 minutes to convince.
  • A jury composed of personalities from the legal world and, since two sessions, from the civil world (Marie Tabarly, Bruno Raffaëli…) selects the winners of the contest. Unless he is unavailable, Bertrand Perrier gives the counter-speech.
  • All participating students are rewarded and a cocktail party closes the event.


DS Avocats has 24 offices across 4 continents (Europe, North and South America, Asia and Africa) and close to 400 legal professionals supporting clients in 14 different countries:

  • France
  • Argentina
  • Belgium
  • Canada
  • Chile
  • China
  • Germany
  • Italy
  • Morocco
  • Peru
  • Senegal
  • Singapore
  • Spain
  • Vietnam

This international scope renders makes DS Avocats one of the leading French international law firms.

Our multicultural and multilingual staff is able to provide our clients with advice based on an in-depth knowledge of their on-the-ground know-how in each country where DS Avocats has an office.


DS Avocats has also 13 operational Desks across four continents:

  • Africa
  • Germany
  • Latin America
  • Canada
  • China
  • Spain
  • Greece
  • India
  • Indonesia
  • Italy
  • Japan
  • United Kingdom
  • USA

The DS Desks are composed of members of various Bars and of various nationalities and have been structured to assist our clients with entering markets and developing their business everywhere in the world.

DS Desks act as genuine commercial platforms for international exchanges between different jurisdictions across the world.