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Claude A. Lenth


Claude A. Lenth is a partner in our Employment Law practice area.

With over twenty years of experience as a lawyer Lenth has extensive experience within the employment law practice area, data privacy law and GDPR. His expertise has gained him recognition by the international ranking bureaus the Legal 500 and Chambers Europe.

Lenth’s large client portfolio consists of national and international companies and businesses, and public institutions as well. He is also frequently requested by managing leaders of organizations for assistance with their legal matters. Lenth provides legal counseling within all practice areas of employment law, including pension rights.

Lenth advises in various matters such as restructuring and reorganization, business transfers, employment termination and dismissals, non-compete and restrictive covenants, temporary staffing procedures, termination agreement negotiations, as well as working environment conditions. Working environment conditions include whisteblowing cases and internal investigations. Lenth also has experience from the Norwegian courts and the Court of Arbitration.

Since 1997, Lenth has also worked with data privacy matters within employment law. He has comprehensive experience with all types of privacy matters within various branches and social areas, such as in the employment sector, research and health sector, investigation assignments, e-commerce and network solutions, and marketing. Lenth also advises private and public entities with all types of privacy law issues and assignments. These issues can pertain to compliance and transferring of confidential information outside of the EEA/EU area, with regards to cloud-services, the evaluation and establishment of routines for data security. Lenth’s experience with the data security for documents has been beneficial for his assistance with cases pertaining to inquiries and complaints for the Norwegian Data Protection Authority (DPA) and the Privacy Appeals Board. Lenth also assists clients with data protection within inquiries, data seizures and defense assignments.

Recently, Lenth has assisted a number of private and public businesses with GDPR compliance and has been actively engaged in hearings pertaining to The Personal Data Act through his position on the Data Protection committee in the Norwegian Association of Lawyers.

Relevant experience

Advisor and sensor for employment law and data privacy for law students at the University of Oslo

Lectures frequently within the practice area of employment law and data privacy


Professional experience
Partner, Advokatfirmaet Hjort DA
Managing Associate, Advokatfirmaet Hjort DA
Senior Associate, Advokatfirmaet Hjort DA
Associate, Advokatfirmaet Hjort DA
Research assistant, Department of Computer Law, The University of Oslo
Candidate in Jurisprudence, The University of Oslo
Memberships / Honoraries

The Norwegian Bar Association

Norwegian Association for law and computer science

2001 – 2004 Deputy member of the Norwegian Policy Board

Claude A. Lenth is ranked as an employment law and data privacy specialist in both Legal 500 and Chambers Europe.

The Legal 500 EMEA 2020:

Claude Lenth has worked with us for several years. He understands the complexity of our business and has great skills in laws regarding GDPR and the working environment.”

“Claude Lenth is an excellent lawyer who does not only guide clients on the legal requirements in Norway but also gives pragmatic and solution-oriented advice, which is what the client wants.”

Chambers Europe 2019: Claude Lenth primarily offers clients advice on various employment law matters, including non-compete and non-solicitation clauses, GDPR, restructurings and employee transfers. A client notes his “broad experience” and appreciates that he “always answers his phone or calls back promptly, giving solid advice.”

Legal 500 2019: Lenth is ranked in the “Leading Individuals” category for employment law, as well as individually ranked in the TMT category (data privacy).


Editor and Co-author of Arbeidsrett.no, kommentarutgave til ny arbeidsmiljølov (www.arbeidsrett.no) which is a commentary to the Norwegian Working Environment Act, for practitioners

Co-author of “Konkurransebegrensninger i arbeidsforhold”, Universitetsforlaget 2016, which details restrictive covenants in employment relationships, for practitioners.

Co-author of Personopplysningsloven – en håndbok, Kommuneforlaget i 2000, which is a legal presentation of the former Norwegian Data Privacy Act, for practitioners.

Research dissertation at The University of Oslo: “Adgangen til å behandle personopplysninger,” Institute for Legal Science, Complex 2/2000