Christian Kahlenberg

Alexander Kessler is a lawyer recognized by Best Lawyers in the practice areas of Corporate Law, Litigation and Mergers and Acquisitions Law. Alexander practices law in Cologne, Germany Best Lawyers has recognized Alexander Kessler since 2022. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Alexander Kessler is held by other lawyers.

Dr Martin Stockhausen has concentrated on banking law, corporate law and insolvency law since beginning his career as a lawyer. After founding Sozietät GÖRG, Dr Stockhausen focused on advising and representing (primarily institutional) creditors and debtor companies in situations of crises, while at the same time building up a separate department in the firm for advising credit institutions. Assisting debtor companies has included taking on managerial or executive functions (e.g. in...

Kirsten Placke is a lawyer recognized by Best Lawyers in the practice area of Tax Law. Kirsten practices law in Düsseldorf, Germany Best Lawyers has recognized Kirsten Placke since 2022. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Kirsten Placke is held by other lawyers.

Simon Groneberg is a lawyer recognized by Best Lawyers in the practice area of Energy Law. Simon practices law in Düsseldorf, Germany Best Lawyers has recognized Simon Groneberg since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Simon Groneberg is held by other lawyers.

Carsten Grave is a lawyer recognized by Best Lawyers in the practice areas of Competition / Antitrust Law and Corporate Governance and Compliance Practice. Carsten practices law in Cologne, Germany Best Lawyers has recognized Carsten Grave since 2009. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Carsten Grave is held by other lawyers.

I was born in 1976 and studied law in Bonn (Germany) and Strasbourg (France). After my legal traineeship at the Bonn Regional Court and the 2nd state law examination, I was admitted to the bar in 2005. In 2011, the board of the Cologne Bar Association allowed me to use the title “Specialist Lawyer for Tax Law”. In 2016, I successfully took part in the “Certified Executor of Wills (AGT)” course, which was carried out in cooperation with the Working Group for Wills Execu...

Philipp-Gerald Hammes is a lawyer recognized by Best Lawyers in the practice area of Real Estate Law. Philipp-Gerald practices law in Düsseldorf, Germany Best Lawyers has recognized Philipp-Gerald Hammes since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Philipp-Gerald Hammes is held by other lawyers.

Achim Kirchfeld is a lawyer recognized by Best Lawyers in the practice areas of Corporate Law and Mergers and Acquisitions Law. Achim practices law in Düsseldorf, Germany Best Lawyers has recognized Achim Kirchfeld since 2011. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Achim Kirchfeld is held by other lawyers.

Dr. Christian Sandweg is a German Patent Attorney (Patentanwalt) and European Patent Attorney at Vossius & Partner Patentanwälte Rechtsanwälte mbB in Düsseldorf. He focuses his practice on Intellectual Property Law , advising clients on the protection and enforcement of patent rights. Dr. Sandweg joined VOSSIUS in 2011 and was admitted to practice as a German Patent Attorney and European Patent Attorney in 2015. As part of his professional training in intellectual property,...

Dr Jan Joachim Dreyer’s work includes antitrust defence, in particular for companies with strong market positions, in sales and traditional antitrust matters, compliance issues in sales and in all forms of cooperation between competitors. His areas of expertise also include global and local merger control, including litigation over decisions by authorities reaching the German Federal Court of Justice and the European courts, claims for damages arising from antitrust violations, state ai...