
Piwnica & Molinié
Avocat au Conseil d’État et à la Cour de cassation
Avocat au Conseil d’État et à la Cour de cassation
Piwnica & Molinié
Avocat au Conseil d’État et à la Cour de cassation

Understanding, counselling, supporting
Since 1984, Piwnica & Molinié has been a law firm specialising in appeals before the French supreme courts and the European courts and has been a member of the bar at the Conseil d’Etat and the Cour de cassation.
To help our clients – businesses, individuals, public and private institutions – make the right decisions, our experienced teams provide tailored, accurate and understandable legal advice in all areas of the law.
We know how to be innovative and propose solutions tailored to our customers’ concerns. At every stage, we offer dynamic assistance in constant interaction with all stakeholders.
How can we help you ?





Our values
Whatever your concern, you can count on one of the firm's partners to coordinate a team that is tailored to your needs, competent, cross-functional and responsive. They will listen to you to understand your objectives and provide you with personalised advice. No unnecessary or inappropriate interventions. We answer all your questions with the candour that builds trust. We pay close attention to the dialogue that needs to be established, and together we decide on the choices and strategies to be implemented to achieve the desired result.
Open to the outside world, we are also able to call on a wide range of skills when necessary, including academic, economic, technical and comparative law expertise. Innovative, we also believe that new technologies can help us to provide an ever more efficient service.
Our work is governed by strong ethical rules that ensure confidence in our working methods.
Our expertise
Our firm

Our values
Our expertise
Our strength lies in our multidisciplinary approach. Our team brings together expertise in all areas of the law to make our recommendations more relevant and our actions more effective. We are accessible to all, especially when it comes to legal aid, to which we attach particular importance.
We provide personalised support: information on the chances of success, consideration of objectives and strategy, interaction in the preparation of legal arguments, explanations at each stage of the procedure up to the court's final decision. The court's preparatory work is forwarded with our opinion and advice. The same applies when we are asked to act outside the context of a dispute.
Nous préparons, sWhere appropriate, we prepare our clients to speak in public or at hearings.
We provide rigorous support throughout our involvement with our customers.
Our firm

Our values
Our expertise
Our firm
Piwnica & Molinié is made up of experienced, competent, inquisitive, enthusiastic and creative lawyers. Our way of working is based on teamwork and on the great importance we attach to interaction with clients, legal professionals and, more generally, with all the people we deal with. The diversity and richness of the firm's human resources are essential to our understanding of our clients' concerns, which we like to determine with them, if they so wish.
Our values are at the service of our advisory mission.
We appear before the French supreme courts, the European courts, the administrative courts, Cour des Comptes and the administrative independent authorities.
We also provide support outside the context of legal proceedings.
Courts before which Piwnica & Molinié acts
Conseil d’Etat
– Appeals in cassation against judgments of administrative courts or judgments of administrative courts of appeal
– Judicial review of State and independent administrative authorities decisions
– Preliminary rulings on constitutionality
– Electoral disputes
– Written contributions to the Conseil d’Etat during the examination of draft laws and decrees
– Contentious advice procedures
Cour de cassation
– Appeals in cassation
– Preliminary rulings on constitutionality
– Disputes
– Contentious advice procedures
Conseil constitutionnel
– Preliminary rulings on constitutionality
– Written contributions on the occasion of the a priori review of legislation
– Electoral disputes
European courts
The Court of Justice of the European Union
– References for a preliminary ruling in the interpretation of Union law
– Actions against acts of the institutions of the European Union
The European Court of Human Rights
– Applications to the Court
– Requests for advisory opinions
Monegasque courts
– Tribunal suprême
– Cour de révision
Cour de cassation du Luxembourg
Financial courts
– Court of Auditors
– Financial Court of Appeal
Administrative courts
– Administrative courts of appeal
– Administrative courts
– Specialised administrative jurisdictions, in particular disciplinary ordinal jurisdictions
Administrative regulatory authorities
– The Competition Authority (ADLC)
– The Regulatory Authority for Audiovisual and Digital Communication (Arcom)
– The Regulatory Authority for Electronic Communications, Postal Services, and Press Distribution (Arcep)
– The restricted panel of the High Audit Authority (H2A)
Administrative authorities
– The State, local authorities and public establishments
– The European Commission (support for customers in discussions with the Commission; or complaints as part of infringement proceedings).
News
21 mai 2025
Par un arrêt du 21 mai 2025, la première chambre civile de la Cour de cassation a rejeté le pourvoi du créancier qui…
LIRE +
14 mai 2025
En l’espèce, la salariée avait dénoncé un harcèlement moral de son employeur et fourni en ce sens des certificats médicaux…
LIRE +
7 mai 2025
Un professionnel intervenant en qualité de « mandataire d’assuré » a été poursuivi pour avoir exercé…
LIRE +
> VIEW ALL
17 avril 2025
La société Consortium Stade de France, exploitant actuel, a formé un référé-précontractuel contre la procédure de….
LIRE +
9 avril 2025
Le mandataire qui détourne les sommes qui lui sont confiées, les « emploie » au sens de l’article 1996…
LIRE +
9 avril 2025
Les intérêts légaux ne courent qu’à compter de la décision judiciaire qui fixe le montant de la…
LIRE +
3 avril 2025
Formalisme excessif et expropriation : Application immédiate de nouvelles règles de procédure concernant le délai pour conclure et pour communiquer ses pièces…
LIRE +
> VIEW ALL