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CASTEGNARO is centrally located in Luxembourg City, the capital of the Grand-Duchy of Luxembourg.


The founder of CASTEGNARO, Guy Castegnaro, joined the Luxembourg bar in 1994. After having practiced for many years as an employment law specialist in several Luxembourg law firms, Guy Castegnaro decided in 2004 to create his own law firm and to structure his legal practice with a clear focus on employment law to respond to the growing demand of a national and international clientele for a comprehensive array of services in both counsel and litigation.

Today the firm numbers eleven lawyers and two paralegal and renders its legal services in Luxembourgish, English, German, French and Italian.

The firm'€s activities cover all aspects of national, European and international employment law as well as corporate, tax and commercial law matters as far as they are directly or indirectly linked to employment law matters.

The Legal 500 (2016) : 

Boutique employment firm Castegnaro, member of Ius Laboris regularly receives referral work from leading international law firms as well as handling direct instructions. Recent highlights include assisting a major steel producer with the review of an appendix to its collective bargaining agreement concerning the new career and salary development programme, and advising a multinational company on the compliance review of an e-monitoring policy. Guy Castegnaro and Ariane Claverie are recommended.

In 2015: highly recommends CASTEGNARO, ranked first tier, for employment law : Guy Castegnaro and Ariane Claverie lead the highly experienced team at boutique employment firm Castegnaro, member of Ius Laboris. The firm works exclusively on the employer side, handling matters such as collective dismissals, restructuring and employment litigation.

In 2014 : "Employment law boutique CASTEGNARO, member of Ius Laboris is a widely recognised leader in the filed, thanks to the talents of the "excellent" Guy Castegnaro and the "huge knowledge" of Ariane Claverie. The firm exclusively defends employers, for instance advising international banks and mutlinational companies on collective dismissals. The firm enjoys good links with a range of leading international law firms.

In 2013 : "CASTEGNARO, member of Ius Laboris, is widely recognised for its exclusive representation of employers. Examples of this include acting for the Luxembourg branch of a major international banking group in relation to a collective dismissal procedure and the establishment of a social plan. Guy Castegnaro has a formidable reputation. The firm is also a member of the international employment law alliance ius laboris."

In 2009: "Castegnaro Cabinet d'Avocats, member of Ius Laboris, is an employment boutique that draws many of its clients from the financial and investment fund sectors. The team handles individual, collective, European and criminal employment law, under the stewardship of founding partner Guy Castegnaro, who is one of the founding members of the International Employment Law Alliance Ius Laboris."

In 2008: "Castegnaro Cabinet d'Avocats, member of Ius Laboris is a very well-regarded employment boutique run by the €˜accurate, pragmatic and quick’ Guy Castegnaro. He played a key role in establishing Luxembourg’s 2006 Labour Law Code, and more recently has been working on part II of the Code. The firm draws many of its employer clients from the financial and investment funds sectors, and recently won an important client in the air freight business. Other recent highlights included advising a client on the employment aspects of two mergers, assisting an international banking client in establishing a new pension plan, and winning a number of court cases regarding protected employee terminations."

Chambers & Partners (2016) : 

Boutique practice specialised in employment law. Exclusively represents employers, advising on all arising issues including related litigation. Well placed to support multinational clients on matters in Luxembourg as part of international alliance Ius Laboris. Notable presence within the financial, transportation, food and drinks sectors.

Strengths The firm is appreciated for its "excellent service, accuracy of response, knowledge and track record."

Another source adds: "It is always a pleasure to work with Castegnaro. They are efficient, to the point and always provide different options with the pros and cons of each."

Value for money Clients note: "They are among the most competitive in the market, while maintaining a high quality of service."

In 2015: recommends CASTEGNARO as "Luxembourg employment law firms: Band 1" : "Specialist employment boutique advising public and private entities at both a national and international level. Scope of expertise covers both contentious and non-contentious employment matters, including collective dismissal procedures and bargaining agreements, data protection and immigration. Name partner Guy Castegnaro leads the firm's employment practice and is a founding member of legal network Ius Laboris. He remains an active figure in the Luxembourg market.

In 2014: A solid, higly specialised team, which does a great job. Strong, domestically focused team, known for the extensive activity with private sector employers, such as hospitals, retailers and transport companies. Offers expertise across employment, including immigration and company law latters, litigation, restructurings and transfger of undertakings. Guy Castegnaro "is one of the top people" in Luxembourg for employment.

In 2013: €This fully specialised outfit is undeniably a top contender for employment law. Its founder, Guy Castegnaro, is a dedicated, long-standing employment lawyer whose decision to form his own boutique in 2004 has paid dividends in a relatively short space of time. The team of six lawyers covers all aspects of human resources, ranging from individual dismissal cases to collective labour issues. The full complement of company-side services also includes employee benefits and executive compensation, social security and data protection.