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Christophe Ernzen



Ernzen Christophe
Christophe Ernzen



Christophe specialises in employment law. He advises financial institutions, funds/private equity players, multinationals and other corporate clients on the full range of individual and collective employment law topics including contractual documentation, workplace culture issues, sensitive separation cases and litigation.

He has significant experience in M&A projects (cross-border mergers, asset/share deals) and employee representation matters (European Works Council, social elections, etc.). He also has particular expertise in health and safety at work issues as well as in cross-practice matters including HR digitalisation and employee monitoring projects.

Christophe chairs the Legal Group of the British Chamber of Commerce (BCC) for Luxembourg and also sits on the BCC Council. He is also a member of ELSA (the Employment Law Specialists Association of Luxembourg).

Christophe joined Allen & Overy in 2010.

News & insights

People dispersed outside in cityscape

Publications: 05 JANUARY 2021

New rules on the posting of employees applicable as of 22 December 2020

Verification or declaration by the Luxembourg user company / extension of the Luxembourg core rules applicable to employees posted to Luxembourg / limitation of the maximum duration of the posting /…

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People working with a laptop

Publications: 29 OCTOBER 2020

Towards a new agreement on teleworking very soon

Here is a summary of the agreement on teleworking signed by the social partners on 20 October 2020.

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Publications: 16 MARCH 2020

Covid-19 coronavirus: impact on Luxembourg employers

Over the weekend, the measures taken by the governments of Luxembourg and the neighbouring countries have strengthened, including notably restrictions on border passing and a closure of restaurants,…

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Allen & Overy graphic

Publications: 28 FEBRUARY 2020

Covid-19 coronavirus: FAQs for employers in Luxembourg

Some FAQs on the rights and obligations of the employer with regards to Covid-19 coronavirus and employees.

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Employment and Benefits



Private Equity



Allen & Overy
5 Avenue John F. Kennedy, L-1855 

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Admitted as avocat à la cour, Luxembourg, 2013

Admitted as avocat, Luxembourg, 2011


LL.M., Trinity College, Dublin, 2010

Master 2, European Economic and Financial Criminal Law, Université du Luxembourg, 2009

Master 1, International Business Law, Université Panthéon-Sorbonne (Paris I), 2008


Published work

  • Christophe Ernzen and Laurie Lougsami (2019) “Internship regulation: Closing the loophole”, article in AGEFI, Luxembourg: Agefi
  • Christophe Ernzen and Catherine Di Lorenzo (2017) “Employees’ right to use company IT vs. Employer’s rights to monitor such use”, article in Connexion magazine, Luxembourg: American Chamber of Commerce in Luxembourg