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Thierry Montéran

Offices / Paris office

Who am I?

Puppeteer, who became a lawyer since January 16, 1980, I decided to “put down my plate” after 6 months of training, and then I was convinced of the need for lawyers to regroup and specialize.

From a good association and after a visit to the firm Arthur Andersen, I participated, alongside Jean-Jacques Uettwiller and Jean-François Canat, in the creation of UGGC Avocats in 1993.


The combination of our differences has allowed us to gather and unite other talents that have made UGGC successful.

My practice

My core business is the right of struggling companies in which at all levels I work with a loyal team that I appreciate and for all sorts of businesses, from the smallest to the most important in all regions of France.

I attach particular importance to sharing, which led me to organize trainings and write many articles.

Aware of the loneliness of the entrepreneur in difficulty, I joined Thierry Bellot alongside the accountants in the creation and success of the CIP National, which I chaired for three years.

As an activist in the service of companies, I took part alongside Agnes Bricard, President of the Conseil Supérieur of the Order of Chartered Accountants, to create prevention insurance to finance measures to prevent companies in difficulty.


Option Droit & Affaires 2021 – UGGC Avocats ranked in 4 categories in Litigation & arbitration

The UGGC Avocats Litigation & Arbitration teams are pleased to be ranked among the best law firms in Option Droit & Affaires magazine’s 2021 ranking.   The firm obtains 2 stars in  : Acquisition litigation (post-acquisition, pre-acquisition, shareholder disputes, enforcement of warranty of liability, price adjustment) Defective products and claims litigation Criminal law and FMA […]

Legal 500 2021 – UGGC ranked in Insolvency

UGGC is pleased to be ranked among the best law firms in this year’s 2021 edition of the Legal 500 guide in Insolvency.   Legal 500 Analysis: « UGGC Avocats’ team is often acting for debtors, but is also popular with shareholders and various types of creditors. The practice handles a high volume of restructuring and […]

Option Droit & Affaires 2021 – UGGC ranked in 2 categories in Restructuring

The UGGC team specialized in Restructuring is pleased to be ranked among the best law firms in the 2021 ranking of Option Droit & Affaires in Restructuring.   The firm is ranked: 3 stars in prevention of difficulties and in debt renegotiation 2 stars in collective procedures (safeguarding, receivership and liquidation)   Subscribers to Option […]

Leaders League 2021 – UGGC Law firm, ranked in 4 categories in Litigation & Arbitration

UGGC is proud to be ranked among the best law firms in the 2021 edition of the guide Leaders League in Litigation & Arbitration. The firm is ranked : Excellent in commercial litigation Excellent in financial litigation & equity investments Highly recommended in corporate criminal law Highly recommended in international arbitration Click on the links […]

Leaders League 2021 – UGGC Law firm ranked Excellent in Restructuring

UGGC Law firm is proud to be once again, ranked among the best law firms in the 2021 edition of the guide Leaders League – Restructuring. The firm is ranked Excellent in: cousel for legal representatives collective proceedings and restructuring: small & mid-cap   Click on the image below to access the complete analysis of […]

Le Magazine des Affaires 2020 – UGGC ranked in restructuring

UGGC, ranked by Le Magazine des Affaires as one of the best law firms in 2020 in terms of restructuring – insolvency proceedings (safeguards, receiverships and judicial liquidations).       Thierry Montéran                Marine Simonnot 

Best Lawyers 2020 – UGGC teams awarded Best Lawyers in 16 practices

UGGC teams awarded ” Best Lawyers Honorees ” in France by the magazine Best Lawyers, Global Business Edition 2020 in: Arbitration and Mediation Competition / Antitrust Law Employee Benefits Law European Union Law Health Care Law Immigration Law Information Technology Law Insolvency and Reorganization Law Investment Labor and Employment Law Litigation Media Law Mergers and […]


  • Président de la Commission "entreprises en difficulté" de l’Association des Avocats Conseils d’Entreprise (ACE) - Depuis 2004
  • Associé et co-fondateur, UGGC Avocats - 1993
  • Avocat, Barreau de Paris - 1980
  • Certificats de spécialisation : droit commercial et droit des sociétés
  • Maîtrise en droit de la Faculté de Paris II-Panthéon Assas, Institut d’Etudes Judiciaires
  • Administrateur de l’Institut Français des Praticiens des Procédures Collectives
  • Membre de l’Union Internationale des Avocats (UIA)
  • Directeur scientifique de la Gazette des Procédures Collectives
  • Président du CIP National (Centre d’Information sur la Prévention des entreprises en difficulté)
  • Exercice individuel puis Associé du Cabinet Errera, Ménard et Montéran