Photo, Dr. Katharina Weiner

Dr. Katharina Weiner

Baker McKenzie Rechtsanwaltsgesellschaft mbH von Rechtsanwälten und Steuerberatern


Dr. Katharina Weiner is a member of the Firm’s Public Law Practice Group in the Dusseldorf office. Prior to joining Baker McKenzie in 2008, she worked for the European Commission's Public Procurement Law Unit and participated in the George Washington University Law School’s government contracts program in Washington DC. Katharina has been recognized for her work in public procurement law by Legal 500 and Who is Who Legal since 2014.

Practice Focus

Katharina focuses her practice on governmental regulation, with particular focus on national European and international public procurement law. She has considerable experience advising and representing companies and public authorities in tender and review procedures, especially in the areas of healthcare, public infrastructure and military procurement. Katharina also regularly advises clients in corporate reorganization matters in highly regulated sectors.

Representative Legal Matters

  • Represented several leading global pharmaceutical companies in tender and judicial review procedures concerning pharmaceuticals with total contract values of more than EUR20 billion.
  • Advised a European government on the implementation of Directive 2009/81/EC in the fields of defense and security.
  • Advised public authorities on the design and conception of complex procurements in the field of information technology.
  • Advised several clients on multi-jurisdictional transactions including complex corporate reorganizations worth more than EUR3 billion.

Professional Honors

  • Lawyer of the next generation, Government Contracts, Legal 500 Germany 2017
  • Recognized lawyer, Government Contracts , Who’s Who Legal Germany 2014, 2015, 2016

Professional Associations and Memberships

  • American Bar Association - Member 
  • Deutscher Anwaltverein (DAV) - Member 
  • Deutsch-Amerikanische Juristen-Vereinigung - Member 
  • Forum Vergabe e.V. - Member


  • Germany (2008)


  • Higher Regional Court of Dusseldorf (Assessor Exam) (2008)
  • Ruhr-University Bochum (Dr. iur. summa cum laude) (2007)
  • Ruhr-University Bochum (Referendar Exam) (2003)


  • English
  • German

Previous Offices

  • Berlin


Co-author (with Marc Gabriel, Janet Butler, Andreas Schulz und Maximilian Voll), "Handbuch Vergaberecht," Marc Gabriel / Wolfram Krohn, 3rd  edition, 24 March 2021,

Author, chapters on general principles and strategic procurement, i.e. green and social procurement in "Handbuch des Vergaberechts," 2nd edition, CH. Beck, October 2017

Author, chapter on procurement in the healthcare sector in "Vergaberecht Kompaktkommentar", 4th edition, Werner Verlag, 2017

Author, chapter on procurement in the healthcare sector in "Handbuch des Fachanwalts Vergaberecht, Werner Verlag, 2017

Co-author, chapter on procurement and public private partnerships in the hospital sector in "Krankenhausrecht Handbuch", 2nd edition, C.H.Beck, 2017