Tanguy d’Everlange


Tanguy is a partner at Kalliopé. He co-manages the Corporate – M&A – Private Equity team and is also part of the Energy and infrastructure and Compliance – CSR teams.

For more than 20 years, he has been advising companies, investors and entrepreneurs on all aspects of their business life.

He advises listed and unlisted companies on the completion of their acquisition or disposal of companies or assets, as well as on the implementation of joint venture agreements.

He works alongside investment funds on financing operations and on issuance of securities in the context of venture capital, growth capital and LBO investments.

He also acts for entrepreneurs and senior executives in the implementation of fundraising, the organisation of governance or the restructuring of their group, as well as in the implementation of share-based incentive plans.

His cross-disciplinary skills enable him to meet all of his clients’ needs and to offer them global, solid and pragmatic solutions.

Although he works on operations in many sectors of activity, Tanguy has particular expertise in the industry, renewable energy and real estate sectors.


Corporate – M&A – Private Equity

Energy and infrastructure

Compliance – CSR

Legal experience


  • acquisitions and disposals of companies or assets
  • setting up joint venture agreements

Private Equity

  • equity transactions
  • issue of securities
  • investments in venture capital, growth capital and LBOs
  • fundraising structuring

Corporate / M&A – Energy & Real Estate

  • creation and monitoring of project companies
  • shareholder agreements
  • preliminary and acquisition agreements
  • due diligence of companies
  • structuring acquisitions and disposals of energy assets
  • structuring acquisitions and disposals of real estate and hotel assets
  • structuring private / public investment vehicles
  • issuance of composite securities

Corporate – advice to executives

  • corporate management and monitoring
  • governance advice
  • equity transactions and restructuring
  • drawing up share-based incentive plans
  • drafting intra-group agreements

Sector experience

  • Renewable energies
  • Real estate investment

Membership bar



French, English

Professional background

  • Since 2011 Partner, Kalliopé, Paris
  • 2001-2010 Lawyer, Shearman & Sterling, Paris and London

Academic background

  • 2001 CAPA
  • 1999-2001 ESSEC Grande Ecole
  • 1996-1999 Aix-Marseille III University, Magistère in Business Law, Taxation and Accounting

Individual distinctions


  • Auditor at the Institut des Hautes Études de Défense Nationale (IHEDN)


Tanguy coaches young entrepreneurs incubated at ESSEC Ventures to help them in the first legal steps of launching their start-up.


  • Advised IDEX Group in the acquisition from the AKUO Group of two biomass cogeneration projects located on the Kourou space site (French Guyana).
  • Advised an international US industrial group in the setting up of a joint-venture with a European energy company for the co-development of a large-scale wind farm in France.
  • Advised MarineMax Group (NYSE: HZO), the world’s leading boat and yacht retailer, for the French aspects of the acquisition of Island Global Yachting.
  • Advised Safran Aerosystems in the sale to Qapex of its civil and military aircraft ground refueling business operated under the Zenith Aviation brand.
  • Advised Assystem Group (Euronext: ASY) in connection with the sale to its management of 51% of the capital of its subsidiary MPH Global Services.
  • Advised Cap Invest in connection with its equity investment in Passage du Désir
  • Advising StaffMe and its shareholders on the acquisition by Belgian group House of HR.
  • Advising Idex on the acquisition of a biomass project.
  • Advising Duynie on the sale of two business sectors.
  • Advising Marinemax on the acquisition of SYM (Superyacht Management).
  • Advising Legal2Digital on the acquisition of several regional press titles.
  • Advising Galiena Capital on its minority LBO on I-4S Group.
  • Advising management on its sponsorless MBO on Legal2Digital.
  • Counsel to EDF RE for its entry into the capital of Green Lighthouse Development alongside Green Investment Group (Macquarie).
  • Advising (France) Marinemax on the acquisition of Northrop & Johnson.
  • Advising Caisse des Dépôts et Consignations on numerous co-investments in real estate projects (offices, hotels, service flats).
  • Advising international energy companies on co-development operations of wind or solar projects.
  • Advising ZE ENERGY on the acquisition of several solar projects.
  • Advising (France) Marinemax on the acquisition of Fraser.
  • Counsel for the Affiches Parisiennes group for the acquisition of the SEPS group.
  • Counsel for Centralnic for the acquisition of Safebrands.
  • Counsel for Cofinance for the implementation of several real estate investment club deals.
  • Counsel for METRO for its acquisition of a stake in Filpromer.
  • Advising STAFFME on its series A fundraising.
  • Advising SPIE on the acquisition of Sietar & VTI.
  • Advising Galiena Capital on its LBO on Affiches Parisiennes.

Training provided

ESSEC ventures

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