In its 2021 edition, the Legal 500 legal directory is again ranking our firm in the top leading law firms. Marc Kleyr, Rosario Grasso, Christian Jungers, François Collot, Donata Grasso, Yasmine Poos and Pascal Sassel are ranked as “leading individuals”. Jeannette Vaude-Perrin is recognised as a “next generation partner” and Céline Defay as a “rising star”.


Within Dispute resolution, KLEYR GRASSO is ranked as one of the Tier 1 firms. Marc Kleyr, Rosario Grasso, Donata Grasso and Pascal Sassel are recommended as a “leading individuals” and François Collot as a “next generation partner”.

“Recognised as a ‘top litigation firm in Luxembourg‘, KLEYR GRASSO is able to direct significant resources to clients engaged across a wide range of litigation and arbitration, including as it relates to commercial, employment and real estate disputes. Clients appreciate the firm’s ‘deep knowledge of business litigation in Luxembourg with a cross-border aspect‘, as well as its ‘knowledge of how the law is applied by the courts‘. Managing partner Marc Kleyr is ‘very reactive and professional‘ and remains central to the firm’s litigation offering by virtue of the superb track record he has built up over the years handling complex corporate law and shareholder disputes, as well as in the defence of clients in audit negligence cases arising from cross-border insolvencies. Other recommended partners include the ‘focused and proactive‘ Donata Grasso; white-collar crime defence expert Rosario Grasso, who has ‘a lot of experience and knowledge of the local market‘; Pascal Sassel, for financial services sector disputes; and François Collot, whose primary focus is on real estate and construction cases.”

Very reactive and professional.’
‘Kleyr Grasso is a top litigation firm in Luxembourg. They are neither too small nor too large and are just the right size to be able to cover all relevant areas. You get a lot of partner time for your money, but there is also a highly capable team of associates. A great choice overall.’
‘The litigation team of Kleyr Grasso has a deep knowledge of business litigation in Luxembourg with a cross-border aspect.’
‘They know the law very well and how it is applied by the courts.’
‘They show a willingness to be close to the customer. Taking ownership of process to ease customer decision making.’
Marc Kleyr is very reactive and professional.’
‘Rosario Grasso is a top-rated practitioner with a lot of experience and knowledge of the local market.’
‘Donata Grasso is highly focused on the case and gives proactive advice.’


Within Real estate and construction, KLEYR GRASSO is also ranked among the Tier 1 firms. François Collot and Yasmine Poos are ranked as “leading individuals”.

“The ‘very knowledgeable‘ team at KLEYR GRASSO is well-versed at handling a broad range of transactional, advisory and litigation-related real estate and construction mandates. Praised for her ‘in-depth technical knowledge of real estate law‘, Yasmine Poos is emblematic of the firm’s balanced offering, and is as comfortable negotiating complex commercial property leases as she is representing clients in construction disputes. François Collot co-heads the team alongside Poos and is appreciated for his ability to provide ‘pragmatic and precise advice‘ to local and international clients, including ArcelorMittal, which he recently assisted on the drafting of the construction contract relating to the construction of its new worldwide headquarters in Luxembourg-Kirchberg.”

The firm has an in-depth knowledge of construction law in Luxembourg.’
The team is very reactive and solutions-minded.’
We particularly appreciate Yasmine Poos’ sound advice, her pragmatic approach and her in-depth technical knowledge in real estate law.’
François Collot has a strong expertise in the Luxembourg real estate field and provides pragmatic and precise legal advice.’


Within Employment, KLEYR GRASSO is considered being on of the Tier 1 law firms. Christian Jungers is recognised as a “leading individual” and Céline Defay as a “rising star”.

“The ‘extremely knowledgeable‘ two-partner team at KLEYR GRASSO provides a ‘solution-driven‘ service to local and international employers across a range of contentious and non-contentious matters, including advice on remuneration policies, as well as on large-scale redundancy procedures. ‘Outstanding‘teamhead Christian Jungers provides ‘innovative and pragmatic solutions‘ that are tailored to the specific needs of the client, whether they be in the public or private sector, including on behalf of many financial services clients. Counsel Céline Defay provides ‘useful and pragmatic advice‘ to clients seeking to negotiate settlement agreements with employees, as well as to respondents in unfair dismissal claims.”

‘The team provides open-minded and solutions-focused advice.’
‘This practice is extremely knowledgeable, very good technically and at the same time is able to provide very practical advice which is adaptive of client needs.’
‘The team is very professional and responsive, the best employment lawyers in Luxembourg.’
‘The firm is very hands-on in the process and has provided good support and guidance. They are solution finders and try and avoid litigation as far as possible, as they understand the financial constraints of the client, although it is not afraid to approach the courts if need be.’
‘Christian Jungers is outstanding. I perceive him as someone who is able to put himself exactly in the shoes of the client and to understand what the important aspects are from a business perspective. Very efficient!’
‘Sandra Rapp is excellent, technically and commercially. She is also extremely responsive and committed to clients.’
Céline Defay provides useful and pragmatic advice.’


Within Commercial, corporate and M&A, KLEYR GRASSO is also ranked among the best firms in the Luxembourg market.

“Praised for its ‘excellent customer focus and business acumen‘, independent full-service firm KLEYR GRASSO receives referral work from international law firms, as well as instructions directly from regional funds and corporates to advise on both the buy and sell-side of transactions. The team also provides counsel to listed and non-listed companies on general corporate and commercial matters, including corporate governance issues. Key team members include Rina Breininger, who continues to provide regular advice to leading growth private equity fund TA Associates on its downstream investment activity, and the ‘assertive and creative‘ Renata Jokubauskaite, who is an ‘an expert in finding simple solutions for complex matters‘.”

‘The team displays excellent customer focus and business acumen and provides a reliable service.’ 
The excellent Renata Jokubauskaite is assertive and very creative. She is an expert in financing transactions and M&A. She is also an expert in finding simple solutions for complex matters.’


Within Insurance, KLEYR GRASSO is ranked among the top firms.

“Although KLEYR GRASSO was undoubtedly weakened by the departure of its leading insurance practitioner Karine Vilret to Wildgen at the end of 2018, the firm remains reasonably active in the sector, on the litigation front in particular. Henry De Ron is the main contact.”


Within Investment funds, our firm is also ranked, with Jeannette Vaude-Perrin ranked as a “next generation partner”.

“The ‘experienced yet approachable‘ multi-disciplinary team at KLEYR GRASSO leverages the expertise of lawyers from within the firm’s corporate, finance and regulatory departments to provide ‘service-oriented advice’ to alternative fund clients. ‘Competent and professional‘ counsel Jeannette Vaude-Perrin is the main contact on the structuring front, and is well-versed at assisting clients on the establishment of the most appropriate regulated or unregulated investment vehicle to facilitate real estate, private equity, debt and infrastructure investment strategies.”

The team is experienced yet approachable and provides service-oriented advice.’
Jeannette Vaude-Perrin is extremely competent and professional.’


Within Private equity, KLEYR GRASSO is among the best firms in Luxembourg.

“The ‘knowledgeable and professional‘ team at KLEYR GRASSO has broad transactional expertise, which includes a not insignificant amount of financial sponsor-led work, often on behalf of core client, TA Associates. Rina Breininger is the primary contact.”

Kleyr Grasso is knowledgeable and professional.’
Accessibility and personal on-hand involvement definitely sets Kleyr Grasso apart from the numerous other law firms we deal with.’


Within Banking, finance and capital markets, KLEYR GRASSO is one of the leading firms in Luxembourg.

Benefiting from a ‘depth of experience across a range of transactions‘, KLEYR GRASSO handles work within the banking sector from a pure finance perspective, as well as in relation to adjacent litigation, corporate and restructuring work. The firm primarily acts for borrower clients and recently advised Samsonite on the provision of a $600m term loan facility to help shore up its balance sheet in the aftermath of the Covid-19 pandemic. The ‘very friendly and open-minded‘ Renata Jokubauskaite and ‘technical but practical‘ Delphine Tempé are pivotal members of the team and spearheaded the firm’s work on behalf of Samsonite.

‘The firm has a depth of experience across a range of transactions and provides practical advice.’
‘The team has a client-oriented mindset and produces good work quality.’
‘Delphine Tempé and Renata Jokubauskaite provide technical but practical advice to legal issues.’
‘Renata Jokubauskaite is very friendly, open-minded and keen to discuss alternative strategies for all parties.’