Dr. Thomas Dieker advises on all aspects of German tax law, in particular on structuring, financing and implementation of tax-efficient national and international M&A, private equity and real estate transactions as well as on corporate reorganizations. He is also experienced in capital markets transactions and innovative financial products. Further, he advises on employee and management participation programs tax risk insurance products as well as tax disputes.

Thomas is dual-qualified as a lawyer and certified tax advisor (Steuerberater). He also publishes articles on contemporary tax discussions.



  • INDUS on sale of SCHÄFER Group to Callista Portfolio Holding.
  • Powerfleet on the acquisition of Movingdots from Swiss Re.
  • On the structuring of a media joint venture.
  • German laboratories enterprise on the restructuring and sale of human diagnostics capacities.
  • A chemical group on a major refinancing.
  • A craftsmen business on the sale and re-investment.
  • An energy company on the assessment of VAT claims.

Related Services & Industries



  • Frankfurt am Main, Germany


  • English
  • German

Professional & Community Involvement

  • Member of the Bar Association of Frankfurt am Main
  • Member of the Hessian Chamber of Tax Consultants