• About us
  • People
  • Expertise
    • Sectors
        • Technology, media & communications Technology, media & communications
        • Private Wealth Private wealth
        • Real estate, infrastructure & energy
        • Life sciences & healthcare icon Life sciences & healthcare
        • Aerospace & defence
        • Automotive & mobility
        • Business & professional services
        • Chemicals
        • Consumer & retail
        • Financial institutions & insurance
        • Hotels, hospitality & leisure
        • Logistics & transport
        • Manufacturing & industrials
        • Public services & education
    • Legal services
        • Artificial intelligence
        • Banking & finance
        • Brands & advertising
        • Commercial & consumer contracts
        • Competition, EU & trade
        • Copyright & media law
        • Corporate crime & compliance
        • Corporate/M&A & capital markets
        • Data & cyber
        • Disputes & investigations
        • Employment, pensions & mobility
        • Environmental, planning & regulatory
        • Environmental, social & governance (ESG)
        • Intellectual property
        • Information technology
        • Patents & innovation
        • Private client
        • Private equity
        • Projects, energy & infrastructure
        • Real estate & construction
        • Regulation
        • Restructuring & insolvency
        • Tax
        • Venture capital
  • Locations
    • Europe
        • Locations
        • Austria
        • Belgium
        • Czech Republic
        • France
        • Germany
        • Hungary
        • Italy
        • Netherlands
        • Poland
        • Portugal
        • Ireland
        • Slovakia
        • Spain
        • United Kingdom
        • Ukraine
          Groups & regions
        • CEE Turkish Desk
        • French German group
        • Our offices
    • Middle East & Africa
        • Locations
        • Middle East
        • UAE
          Groups
        • Africa group
        • Israel group
        • Our offices
    • Americas
        • Locations
        • Latin America
        • USA
          Groups
        • Brazil group
        • Our offices
    • Asia
        • Locations
        • Asia
        • China
        • South Korea
          Groups
        • India group
        • Japan group
        • Our offices
  • Insights
    • Insights
        • Featured Topics
        • Artificial intelligence
        • Data Centre Expertise
        • The EU Whistleblower Directive
        • German Supply Chain Act
        • Unified Patent Court
          Content hub
        • Global Data Hub
        • Interface: tech, IP and media law
        • Podcasts
        • Synapse
        • Browse all insights
    • In focus
        • AI
        • Dealonomics
        • Disputes
        • Intellectual property
        • MENA
        • Regulation
        • Browse in focus
    • Events
        • In person
        • Online
        • Browse all events
    • News
        • Media centre
        • Work highlights
        • Firm news
        • Browse all news
  • Careers
  • EN
    • English
    • 中文(简体)
    • Français
    • Deutsch
  • Home
  • People
  • Detlef Klett
Detlef Klett
Detlef Klett

Detlef Klett

Partner

  • Duesseldorf Germany
Contact Me Today
+49 211 8387 0
vCard
Email me Call me
Featured award

JUVE 2025/2026

Recommended lawyer for IT law

Scroll to featured award

Detlef specialises in legal advice in the fields of digitisation, artificial intelligence, data protection and telecommunications. The focus of his practice is complex IT projects.

He also advises the public sector on large-volume IT and infrastructure projects, in particular the Federal Ministry of the Interior, Building and Community and its downstream sectors. Detlef has been the regular recipient of awards in recent years and is regarded as one of the most respected IT lawyers in Germany. 

 

Expertise

Services and Groups

Data & cyber
Information technology
Artificial intelligence
Telecommunications
Insurance & reinsurance disputes
Tech Litigation

Sectors

Technology, media & communications
Insurance
Machine learning

Artificial Intelligence Act (AI Act)

All relevant and recent updates on the AI-Act!

CV

Since 2005 Partner, Taylor Wessing
1996 – 2005 Associate/Partner, Andersen Legal/ Luther Rechtsanwaltsgesellschaft
1983 – 1986 Training as a banker, Sparkasse Köln,Bonn
2005 Admitted as a lawyer, Düsseldorf
1996 – 2005 Admitted as a lawyer, Cologne
1996 Second state examination, Cologne
1993 First state examination, Cologne

Career

Since 2005 Partner, Taylor Wessing
1996 – 2005 Associate/Partner, Andersen Legal/ Luther Rechtsanwaltsgesellschaft
1983 – 1986 Training as a banker, Sparkasse Köln,Bonn

Education

2005 Admitted as a lawyer, Düsseldorf
1996 – 2005 Admitted as a lawyer, Cologne
1996 Second state examination, Cologne
1993 First state examination, Cologne

Publications

Info-Film: Überholt die Digitalisierung das Recht?, 03/2018

Additional languages

English

Awards

JUVE 2025/2026

Featured

Recommended lawyer for IT law

JUVE 2025/2026

Frequently recommended lawyer for data protection law

JUVE 2025/2026

‘experienced in the public sector context’, competitor

WirtschaftsWoche Ranking 2025

Top Lawyer IT-Law

Best lawyers: IT law

"As an expert in the interfaces between IT, data protection and telecommunications law, Detlef Klett excels in the management of infrastructure and digitisation projects."

Leading individual for information technology and Digitalization

“lots of experience in the public sector”, “expert in IT procurement law”, competitor

Frequently recommended lawyer for data protection

Frequently recommended lawyer for information technology - Transactions/ Outsourcing

Frequently recommended lawyer for IT law

Top Lawyer IT Law

Leading individual: Information Technology Law

Leading individual for information technology and Digitalization

Frequently recommended: IT

Top Lawyer for IT Law

Leading individual: Information Technology Law

Often recommended for data protection

"very visible", "experienced, pragmatic", "expert for international data transfers". Data transfers", competitor

Top lawyer 2022 for information technology law

Leading individual: Information technology law

Experience

Member of Chubb Europe's Cyber Incident Response Team

CHUBB European Group Limited, Directorate for Germany as member of its Cyber Incident Response Team. Chubb is the world’s largest publicly traded property and casualty insurance company.

Dr. Gunbritt Kammerer-Galahn
Detlef Klett
Mareike Christine Gehrmann
Dr. Axel Frhr. von dem Bussche, LL.M. (L.S.E.), CIPP/E

Detlef's news & insights

View Detlef's insights
Fibre optic cables
Click here to find out more
Technology, media & communications

The new Digital Ministry – a new beginning or redistribution?

21 May 2025

by Detlef Klett and Maximilian Schumann

Interface - AI Act

Data governance in the AI Regulation - in conflict with the GDPR?

16 November 2021
In-depth analysis

by Detlef Klett

6 of 9 Insights

Click here to find out more
Interface - Cyber Security 2021

IT Security Act 2.0 – more appearance than substance?

16 April 2021
Briefing

by Detlef Klett

3 of 6 Insights

Click here to find out more
View Detlef's insights

Related news & insights

Escalator
Consumer & retail

Consumer and Retail in the News

20 February 2026
Quick read

by multiple authors

Click here to find out more
Androids and facial mapping
Technology, media & communications

What international businesses should know about the German AI Market Surveillance and Innovation Promotion Act

20 February 2026
Briefing

by multiple authors

Click here to find out more
Robots hand
Technology, media & communications

The “Withdrawal Button”: A new compliance risk for (non-)EU businesses

20 February 2026
Briefing

by Nathalie Koch, LL.M. (UC Hastings) and Elisa-Marlen Dietrich, LL.M. (Turin)

Click here to find out more
Full Frame Shot Of Orange Cable
Projects, energy & infrastructure

The NIS2 Directive: Challenges Renewable Energy Companies

18 February 2026
Briefing

by Dr. Paul Voigt, Lic. en Derecho, CIPP/E

Click here to find out more
Fintech

Agentic AI in payments: Key regulatory considerations

17 February 2026
In-depth analysis

by Miroslav Đurić, LL.M.

Click here to find out more
Escalator
Consumer & retail

Consumer and Retail in the News

13 February 2026
Quick read

by multiple authors

Click here to find out more
Escalator
Consumer & retail

Consumer and Retail in the News

6 February 2026
Quick read

by multiple authors

Click here to find out more
Fibre optical cable
Automotive & mobility

When Cyber Incidents Hit: FAQ on NIS-2 Reporting Duties for Automotive Legal & Compliance

6 February 2026
Briefing

by Thomas Kahl and Teresa Kirschner, LL.M. (Information and Media Law)

Click here to find out more
Data centres

Power, latency and costs – understanding the future of data centre investment

5 February 2026

by Johannes Callet, Lic. en Droit and Lacy Gratton

Click here to find out more
Data centre server room
Artificial intelligence

In the age of AI, trust is now an auditable issue

4 February 2026
In-depth analysis

by János Kopasz, AIGP, CIPP/E, CIPM

Click here to find out more
View all insights

Related people

Germany
Global

Hazal Viola Koepp-Strand, LL.M. (Lund)

Associate

Berlin
+49 30 885636 0
Email me
View profile
Franziska Brinkmann

Dr. Franziska Brinkmann, M.A.

Senior Associate

Hamburg
+49 40 36803 0
Email me
View profile

Thanos Rammos, LL.M.

Partner

Berlin
+49 30 885636 430
Email me
View profile
Tobias Schelinski

Dr. Tobias Schelinski

Partner

Hamburg
+49 40 36803 0
Email me
View profile
Leonard Raphael

Leonard Raphael, LL.M. (Krakau)

Senior Associate

Duesseldorf
+49 211 8387 0
Email me
View profile
Fritz-Ulli Pieper

Fritz-Ulli Pieper, LL.M.

Salary Partner

Duesseldorf
+49 211 8387-240
Email me
View profile
Axel Freiherr von dem Bussche, Technology Law at Taylor Wessing

Dr. Axel Frhr. von dem Bussche, LL.M. (L.S.E.), CIPP/E

Partner

Hamburg
+49 40 36803 0
Email me
View profile
Sophia Marie Kling

Sophia-Marie Haeder, LL.M. (Mainz)

Associate

Frankfurt
+49 69 97130 0
Email me
View profile

Nils von Reith

Senior Associate

Frankfurt
+49 69 97130 0
Email me
View profile

Stephanie Richter, LL.M. (Torino), CIPP/E

Salary Partner

Hamburg
+49 40 36803 0
Email me
View profile
Full team
Hannah Garvey

Hannah Garvey

Associate

Dublin
+353 1 224 1092
Email me
View profile

Stephanie Richter, LL.M. (Torino), CIPP/E

Salary Partner

Hamburg
+49 40 36803 0
Email me
View profile
Benedikt Kohn Taylor Wessing

Dr. Benedikt Kohn, CIPP/E

Salary Partner

Duesseldorf
+49 211 8387 0
Email me
View profile

Hazal Viola Koepp-Strand, LL.M. (Lund)

Associate

Berlin
+49 30 885636 0
Email me
View profile
Marie Keup

Marie Keup

Partner

Brussels
+32 2 3202 252
Email me
View profile
Philippe Glaser

Philippe Glaser

Partner

Paris
+33 1 72 74 18 26
Email me
View profile
Mila Pencheva

Mila Pencheva

Senior Counsel

London
+44 20 7300 7000
Email me
View profile

Miroslav Đurić, LL.M.

Senior Associate

Munich
+49 89 21038 0
Email me
View profile
Richard Price

Richard Price

Senior Associate

London
+44 20 7300 7000
Email me
View profile
Paolo Palmigiano

Paolo Palmigiano

Partner

London
Brussels
+44 20 7300 4138
Email me
View profile
Full team

Meet me at

There are no upcoming events

See all events
Subscribe to our latest insights
  • About us
  • Campaigns and online tools
  • News
  • People
  • Expertise
  • Locations
  • Insights
  • Events
  • Media centre
  • Contact
  • Careers
  • Alumni
  • Data protection & privacy policy
  • Cookie policy
  • Legal and regulatory information
  • Regulatory information on costs
  • Complaints procedure for clients
  • Terms of use
  • Anti-slavery statement
  • Environmental
  • Scam emails

© Taylor Wessing