Siebertz, Nadja

Nadja Siebertz

Attorney at Law | Managing Partner

Certified Specialist in Intellectual Property Law

Mediator

Nadja Siebertz

Attorney at Law | Managing Partner

Certified Specialist in Intellectual Property Law

Mediator

Vita

  • since 2021 | Managing Partner of CBH Rechtsanwälte
  • since 2011 | Mediator
  • since 2011 | Lecturer at the State Distance-Learning University in Hagen
  • since 2007 | Lecturer at Technical University of Cologne
  • since 2007 | Equity partner of CBH Rechtsanwälte
  • since 2007 | Certified Specialist in Intellectual Property Law
  • since 2001 | CBH Rechtsanwälte
  • from 1998 to 2000 | Düsseldorf Higher Regional Court (Legal Clerkship)
  • from 1992 to 1997 | Rheinische Friedrich-Wilhelms University, Bonn (Studies of Law)
    • Languages: German, English, French
    • Memberships: German-American Lawyers Association (DAJV), German As-sociation for Intellectual Property Law (GRUR), Association of Intellectual Property Ex-perts (VPP), Central Office for Mediation (CfM)

Contact

Expertise & Sectors

Nadja Siebertz studied at the Rheinische Friedrich-Wilhelms-Universität in Bonn and laid the foundation for her current internationally oriented career early on during numerous stays abroad. She specializes in intellectual property law. In addition to handling competition law cases, her professional activities focus in particular on advising and representing clients in Germany and abroad on all aspects of trademark and labeling law. Among other things, she advises international companies on portfolio establishment and optimization as well as strategic brand management.
Trademark LawCompetition LawBusiness MediationLicensing Contract LawIntellectual Property RightsDesign LawStartup Consultation

Awards

Awards and mentions in various manuals are confirmation of the excellent work done by our teams!

JUVE Ranking 2025/2026

Practice Area „Trade Mark, Design Law & Unfair Competition“

Chambers Germany 2026

Practice Area „Intellectual Property: Trade Mark & Unfair Competition“

The Legal 500 Germany 2025

Practice Area „Trade Mark“

The Legal 500 Germany 2025

Practice Area „Unfair Competition“

Best Law Firm | Handelsblatt 2025

Practice Area „Intellectual Property“

IP Stars 2025

Practice Area „Trade Mark Firm“

Leaders League 2025

Practice Area „Trade Mark: Litigation“

Kanzleimonitor 2025/2026

Practice Area „Intellectual Property Law“

Brandeins | Statista 2025

Practice Area „Trade Mark, Design Patent“