Jean-Julien Lemonnier Partner

Jean-Julien Lemonnier is a partner within the ethics, investigations, defence practice and heads the antitrust practice at Stephenson Harwood in Paris.
  • Profile
  • Services
  • Sectors

He regularly advises companies on investigations into alleged anti-competitive practices, mainly initiated by the French competition authority or the European Commission, as well as on the implementation of compliance programs, and assisting clients involved in EU and multijurisdictional merger control filings.

He is also regularly involved in internal investigations, advising not only on the competition aspects but also on the potential criminal liability issues, in particular white collar.

  • Competition

Advising a client in the context of a cartel investigation by the French Competition Authority in the port handling sector.

Advising a leading animal nutrition company in the context of an investigation conducted by the French Competition Authority for alleged vertical restraints.

Advising a leading industrial group of cosmetics and perfumes products in the context of an investigation conducted by the French Competition Authority for alleged vertical restraints.

Advising a leading coffee company in the context of an investigation conducted by the French Competition Authority on alleged abuse of dominant position.

Advising one of the leading French banks in the context of an investigation conducted by various international competition authorities in the interest rate derivatives sector (notably Euribor).

Advising a leading French bank in the context of the market study of the European Commission in the banking syndication sector.

Advising a leading French bank in the context of internal investigations implemented for the need of an OFAC remediation plan.

Advising a client active in the equipment rental sector in the implementation of a compliance program comprising the setting up of a competition charter, an e-learning and trainings.

Assistance to an operator active in the spirits market in the context of a merger between two of its main competitors.

Advising a client in the context of an asset transfer and merger control in Asia.

Advising a client active in the DIY sector in the context of the notification of a merger operation in France.

Advising a sugar producer in the context of several merger operations in France and before the European Commission (including a Phase II operation and an operation giving rise to commitments).

Advising a packaging producer in the notification of a merger in France.

Advising a leading refrigerated transport client in the context of a notification of a merger before the French Competition Authority. 

Advising a client active in the rental of construction equipment sector in the context of the notification of a merger operation to the French Competition Authority.

Advising a client active in the trade fair business in the context of a merger operation having given rise to a in-depth analysis in France (phase II).

Advising an operator active in the chemicals sector in the context of the notification of a merger operation to the European Commission.

Intervention in the framework of a professional association: training and awareness-raising on competition law.

Advising a leading French bank in the context of a large-scale internal investigation following investigations conducted by authorities in the derivatives sector.

Advising a leading advertising company in the context of an internal investigation in connection with an investigation conducted by a foreign authority.  

  • Consumer
  • Banks and banking

Advising a leading industrial group of cosmetics and perfumes products in the context of an investigation conducted by the French Competition Authority for alleged vertical restraints.

Advising a leading coffee company in the context of an investigation conducted by the French Competition Authority on alleged abuse of dominant position.

Assistance to an operator active in the spirits market in the context of a merger between two of its main competitors.

Advising a client active in the equipment rental sector in the implementation of a compliance program comprising the setting up of a competition charter, an e-learning and trainings.

Advising a client active in the DIY sector in the context of the notification of a merger operation in France.

More: Consumer

Advising one of the leading French banks in the context of an investigation conducted by various international competition authorities in the interest rate derivatives sector (notably Euribor).

Advising a leading French bank in the context of the market study of the European Commission in the banking syndication sector.

Advising a leading French bank in the context of internal investigations implemented for the need of an OFAC remediation plan.

Advising a leading French bank in the context of a large-scale internal investigation following investigations conducted by authorities in the derivatives sector.

More: Banks and banking

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