KLEYR GRASSO > Luxembourg, Luxembourg > Firm Profile
KLEYR GRASSO Offices

7 rue des Primeurs
L-2361 Strassen
Luxembourg
KLEYR GRASSO > The Legal 500 Rankings
Luxembourg > Dispute resolution Tier 1
The partner-led team at KLEYR GRASSO provides 'pragmatic and innovative insights and solutions' to clients within the financial services and asset management industries utilising both conventional and ADR litigation techniques. With a 'deep understanding of the complexities' associated with disputes occurring within these industries, Marc Kleyr can 'navigate challenges with remarkable insight'; as well as handling shareholders' disputes, Kleyr also excels at defending accounting firms in auditor negligence claims. Donata Grasso has a 'deep knowledge of procedural aspects and a great capacity to assimilate various law areas', ensuring that she is very well-equipped to represent clients across a range of corporate/commercial litigation, including in the context of funds and insolvency-related disputes. Rosario Grasso spearheads the criminal law offering, which includes white-collar-related matters, while the 'responsive and proactive' Emilie Waty , who was promoted at the beginning of 2024, excels at handling shareholders' and directors’ liability litigation and rounds out the team at a partner level.Practice head(s):
Marc Kleyr; Rosario Grasso; Donata Grasso; Emilie Waty
Other key lawyers:
Vincent Alleno; Muriel Piquard
Testimonials
‘The team has excellent strategic thinking and case analysis.’
‘Very responsive, practical approach and good at handling cross-border litigation.’
‘The partners’ deep understanding of complex legal issues, combined with a hands-on approach, ensures that clients receive a highly tailored and strategic service.’
‘It is a partner-led team that provides pragmatic and innovative insights and solutions.’
‘Marc Kleyr’s extensive experience and deep understanding of the complexities within the field allow him to navigate challenges with remarkable insight.’
‘Donata Grasso has a deep knowledge of procedural aspects and a great capacity to assimilate various law areas. Donata employs a conservative approach that guarantees positive results in sensitive cases.’
‘Emilie Waty is responsive and proactive.’
Key clients
Ikodomos Holding S.C.A. (IKO Real Estate Group)
Ernst & Young S.A.
Blue Skye Financial Partners SA
Work highlights
Luxembourg > Employment Tier 1
With a strong understanding of both the pure legal and commercial aspects associated with any mandate it advises on, KLEYR GRASSO can provide 'pragmatic and responsive advice' to local and international clients across the full scope of contentious and non-contentious social and employment law issues. Team head Christian Jungers' diverse practice includes advice on individual and collective terminations, as well as regularly negotiating collective bargaining agreements and social plans. Céline Defay provides 'a high-quality level of service' to national and international corporates, on standalone advisory matters, including in relation to contract terminations and social plans, as well as employment work associated with broader transactions - including M&A-related TUPE matters. Philippe Ney and Anissa Bali are also well regarded for data protection and workplace harassment/whistle-blower issues respectively.Practice head(s):
Christian Jungers
Other key lawyers:
Anissa Bali; Céline Defay; Philippe Ney; Christophe Ney
Testimonials
‘You always get a swift and professional reply to your needs.’
‘The team offers pragmatic and responsive advice. They understand both the pure legal position and the commercial aspects and help us decide on the right outcome.’
‘Céline Defay is always available, flexible, pragmatic and a real partner.’
‘Céline Defay is super devoted and dedicated to work and clients. Flexible and eager to find tailored solutions.’
‘Céline Defay provides a high-quality level of service, she is always very clear and concrete in her explanations and advice.’
Key clients
Anthogyr
Luxembourg Federation of Laboratories
Post Luxembourg
Vodafone Procurement Company S.à r.l.
Wavestone
Cargolux
BDO Luxembourg
SES
Farvest (Docler Group)
Tarkett
IQ EQ
Luxair
Work highlights
Luxembourg > Real estate and construction Tier 1
Acting in a standalone fashion and working collaboratively with broader practice area specialisms when required, KLEYR GRASSO provides a 'high-quality service' across the full spectrum of commercial real estate/construction work from an advisory/transactional and litigation perspective. Drawing upon an 'in-depth knowledge of real estate law and construction regulations', Yasmine Poos is a popular choice across a range of contractual work, including as it relates to lease negotiations. She is a skilled litigator, with work including defending the State of Luxembourg in relation to real estate-related public procurement disputes. François Collot co-heads the team alongside Poos and has developed niche expertise across environmental, health and safety rules.Practice head(s):
François Collot; Yasmine Poos
Other key lawyers:
Henry De Ron; Fanny Mazeaud; Mélanie Trienbach
Testimonials
‘The team is known for its exceptional responsiveness, ensuring that client queries and needs are addressed in a timely manner. This promptness fosters a strong sense of trust and reliability.’
‘We appreciate their availability, their technical knowledge, the way they follow up on projects and their pragmatic approach.’
‘They provide high-quality service tailored to each client’s specific needs.’
‘Yasmine Poos is an exceptional lawyer in the realms of real estate and construction, distinguished by her thorough understanding of the legal landscape and her approach to client service.’
‘Yasmine Poos possesses an in-depth knowledge of real estate law and construction regulations. Her ability to navigate complex legal frameworks ensures that clients receive informed guidance throughout their transactions and projects.’
Key clients
Soclair
Administration communale de Sandweiler
Tralux SARL
Kalschesbrück
SNCH – SNCA – SNCT
Les Jardins du Luxembourg / Thomas & Piron
Ministère de la Mobilité et des Travaux Publics
IKO Real Estate
CIT BLATON
Fonds du Logement
Tracol Immobilier
Luxair
Fonds de Compensation Commun au Régime Général des Pensions
Work highlights
Luxembourg > Banking, finance and capital markets Tier 3
The ‘user-friendly’ team at KLEYR GRASSO advises a borrower-focused client base across the full range of their financing needs, from general working capital facilities, funding for M&A and real estate purposes. Renata Jokubauskaite and Pierre-Alexandre Degehet co-head the team, with both also being well-versed in associated financial services regulatory matters. Degehet also handles debt and equity capital markets work, as does Delphine Tempé.Practice head(s):
Renata Jokubauskaite; Pierre-Alexandre Degehet
Other key lawyers:
Delphine Tempe
Testimonials
‘It is a very user-friendly team.’
Key clients
Samsonite International S.A.
Solutions 30 SE
APERAM
SUSE SA
IVS Group SA
Transparency Capital SCA
TA Associates
Work highlights
- Assisted IVS Partecipazioni in the IVS Group delisting tender offer by Lavazza Group
- Assisted Samsonite International and its indirect wholly owned subsidiaries in the refinancing of the Group’s senior credit facilities.
Luxembourg > Commercial, corporate and M&A Tier 3
Appreciated for its ‘strong focus on understanding and addressing client needs’, KLEYR GRASSO has, over the years, developed loyal relationships with a number of corporates and funds, acting in a trusted adviser capacity across a range of transactional and corporate advisory matters. One such client is growth private equity firm, TA Associates, which the ‘responsive and proactive’ Jérôme Burel and Delphine Tempé regularly advise on the Luxembourg aspects of their downstream investments and exits. The ‘very responsive and helpful’ Pierre-Alexandre Degehet is also a key member of the team and provides ‘pragmatic solutions’ across a a range of transactional work and corporate governance/regulatory matters.Practice head(s):
Jean-Paul Spang; Delphine Tempe; Pierre-Alexandre Degehet; Renata Jokubauskaite
Other key lawyers:
Jérôme Burel; Katia Bartholome
Testimonials
‘Kleyr Grasso excels in responsiveness, a critical factor for complex multinational transactions that we have pursued with them. They also have a deep understanding of the matters and provide legally mature advice, taking into account multi-jurisdictional aspects.’
‘The team has a strong focus on understanding and addressing client needs, ensuring personalized and effective solutions.’
‘What makes the corporate practice of Kleyr Grasso unique is its holistic approach to client relationships, focusing on long-term partnerships rather than one-off transactions.’
‘Jerôme Burel and Delphine Tempe are responsive and proactive.’
‘Jerôme Burel has a deep understanding of the industry, which enables him to provide insightful and effective solutions.’
‘Pierre-Alexandre Degehet is very responsive and helpful in supporting legal queries and helping with pragmatic solutions.’
‘Delphine Tempe is very kind, readily available and careful in collecting all details relevant for solving the issue in a very quick manner.’
Key clients
Samsonite International S.A.
TA Associates
Kodehyve
IK Investment Partners
Shareholders of IFSAM
Eurofins
Vivalto Partners
Solutions 30 SE
APERAM
SUSE SA
Duferco Group
IVS Group SA
Transparency Capital SCA
Juvisé Pharmaceuticals
AGIL NRG
Work highlights
Luxembourg > Investment funds Tier 3
'Very knowledgeable on the Luxembourgish funds industry', KLEYR GRASSO handles work for fund managers and institutional investors setting up or investing into a myriad of alternative investment funds, including real estate and private equity. The team also advises on ongoing regulatory issues associated with running a fund, as well as advice with regard to other transactional mandates, including restructuring and mergers of funds. Much of the work has an intersection with German-speaking countries, with the 'outstanding' Mevlude-Aysun Tokbag particularly skilled at work in the space. The 'very professional and responsive' Luc Courtois co-heads the team alongside Tokbag, and as well as AIF-related work, also advises on the setting up of UCITs.Practice head(s):
Mevlüde-Aysun Tokbag; Luc Courtois
Other key lawyers:
Garry Reuland; Fabian Frankus;
Testimonials
‘The team is very knowledgeable on the Luxembourgish funds industry.’
‘The outstanding Mevlüde-Aysun Tokbag always goes the extra mile.’
‘Luc Courtois is very professional and responsive.’
Key clients
VERIUS-Immobilienfinanzierungsfonds
Ludus S.C.S.
Nixdorf Kapital AG
Palmela S.A.
Real Estate Opportunity RAIF SICAV S.A.
FAIR FUND SERIES S.A. SICAV-RAIF
Universal-Investment Luxembourg S.A.
RE ENERY CAPITAL S.C.A. SICAR
PA S.C.S SICAV-RAIF
Danske Invest Management A/S, Luxembourg Branch
ZEST ASSET MANAGEMENT SICAV
FARRINGDON I, SICAV
Work highlights
Luxembourg > Private equity Tier 3
Work highlights
Luxembourg > Tax Tier 4
KLEYR GRASSO provides a 'pragmatic approach' to corporates and funds, in particular, seeking to implement the optimal Luxembourg tax structure in relation to their domestic and cross-border transactional work. Team head Lionel Bonifazzi has an 'impressive breadth of knowledge' which encompasses the aforementioned transactional-related tax structuring as well as work for tax payers in administrative and judicial proceedings in a contentious setting.Practice head(s):
Lionel Bonifazzi
Other key lawyers:
Valeria Ercolin
Testimonials
‘They are very competent and display a friendly and pragmatic approach.’
‘Their expertise is not merely theoretical; they have direct, practical experience in navigating interactions with tax authorities, giving clients confidence in their ability to handle real-world challenges effectively.’
‘Lionel Bonifazzi is a great Luxembourg tax and corporate lawyer with extensive experience. He has a cautious approach and always takes the time to assess the situation.’
‘Lionel Bonifazzi stands out for his exceptional expertise and ability to distil complex legal concepts into clear, understandable terms. His meticulous attention to detail ensures that nothing is left to chance. What sets Lionel apart is his impressive breadth of knowledge and his ability to provide precise, well-considered answers on even the most intricate matters, often with minimal preparation.’
Key clients
Starlight S.à r.l.
Excellium Group
Flagstaff Investments S.à r.l.
Vesper Investment S.à r.l.
Omnione S.A.
DDM Group Finance S.A.
Antobella S.à r.l.
Jost Group
Work highlights
KLEYR GRASSO > Firm Profile
KLEYR GRASSO is an independent full-service business and litigation law firm with 30 years of experience serving both international and domestic clients in Luxembourg. We pride ourselves on maintaining the highest professional standards and fostering an entrepreneurial culture. Our dedicated teams, comprising partners and lawyers from various nationalities, support local and international clients throughout their projects, from inception to implementation. As a leading independent law firm in Luxembourg, we are recognized for providing a comprehensive range of services and extensive experience across diverse practice areas, such as:
ADMINISTRATIVE AND PUBLIC LAW
BANKING & FINANCE
CAPITAL MARKETS
COMMERCIAL LITIGATION
COMPLIANCE AML
CONTRACT LAW
CORPORATE AND FINANCE LITIGATION
CORPORATE GOVERNANCE
CORPORATE, M&A
CRIMINAL LAW
DATA PROTECTION & PRIVACY
EMPLOYMENT & SOCIAL
FINANCIAL REGULATORY
INSURANCE & REINSURANCE
INVESTMENT FUNDS
PRIVATE EQUITY
REAL ESTATE & CONSTRUCTION
RESTRUCTURING & INSOLVENCY
STARTUPS, FINTECH
TAX
Main Contacts
Department | Name | Telephone | |
---|---|---|---|
Banking and finance | Jean-Paul Spang | ||
Banking and finance | Renata Jokubauskaite | ||
Capital markets | Jean-Paul Spang | ||
Capital markets | Delphine Tempé | ||
Commercial, Corporate And M&A | Jean-Paul Spang | ||
Commercial, Corporate And M&A | Delphine Tempé | ||
Commercial, Corporate And M&A | Renata Jokubauskaite | ||
Restructuring and insolvency | Marc Kleyr | ||
Private equity | Delphine Tempé | ||
Private equity | Renata Jokubauskaite | ||
Dispute resolution | Marc Kleyr | ||
Dispute resolution | Donata Grasso | ||
Dispute resolution | Rosario Grasso | ||
Insurance and reinsurance | Henry De Ron | ||
Real estate and construction | François Collot | ||
Real estate and construction | Yasmine Poos | ||
Real estate and construction | Henry De Ron | ||
Social and employment | Christian Jungers | ||
Social and employment | Anissa Bali | ||
Social and employment | Céline Defay | ||
Social and employment | Philippe Ney | ||
Social and employment | Sandra Rapp | ||
Tort and criminal | Rosario Grasso | ||
Investment funds | Mevlüde-Aysun Tokbag | ||
Banking and Finance | Mevlüde-Aysun Tokbag | ||
Investment funds | Luc Courtois | ||
Private Equity | Luc Courtois | ||
Commercial, Corporate And M&A | Pierre-Alexandre Degehet | ||
Banking, Finance And Capital Markets | Pierre-Alexandre Degehet | ||
Fintech | Pierre-Alexandre Degehet | ||
Tax | Lionel Bonifazzi |
Lawyer Profiles
Photo | Name | Position | Profile |
---|---|---|---|
![]() |
Mr Lionel BONIFAZZI | Partner – Tax | View Profile |
![]() |
Me Anissa Bali | Partner – Employment and social law | View Profile |
![]() |
Mr Jérôme Burel | Partner | View Profile |
![]() |
Mr François Collot | Managing Partner, Partner in Real Estate & Construction, Leasing, Distribution law, Civil… | View Profile |
![]() |
Mr Luc Courtois | Partner | View Profile |
![]() |
Me Henry De Ron | Partner – Real estate & construction, general commercial, insurance, dispute resolution with… | View Profile |
![]() |
Me Céline Defay | Partner – Employment and social law | View Profile |
![]() |
Mr Pierre-Alexandre Degehet | Partner | View Profile |
![]() |
Mr Rosario Grasso | Senior Partner | View Profile |
![]() |
Mr Donata Grasso | Partner | View Profile |
![]() |
Mrs Renata Jokubauskaite | Partner | View Profile |
![]() |
Me Christian Jungers | Partner | View Profile |
![]() |
Mr Marc Kleyr | Senior Partner | View Profile |
![]() |
Mr Philippe Ney | Partner | View Profile |
![]() |
Me Yasmine Poos | Partner – Real estate and construction, public procurement procedures, civil and commercial… | View Profile |
![]() |
Mrs Sandra Rapp | Counsel | View Profile |
![]() |
Maitre Jean-Paul Spang | Partner | View Profile |
![]() |
Mrs Delphine Tempé | Partner | View Profile |
![]() |
Me Mevlude-Aysun Tokbag | Partner in Banking and Finance, Investment funds, head of German Desk | View Profile |
Staff Figures
Number of lawyers : 60Languages
English French German Luxembourgish Dutch Italian Lithuanian Polish Portuguese Russian Spanish TurkishMemberships
Luxembourg Bankers’ Association (ABBL) Association of the Luxembourg Fund Industry (ALFI) Luxembourg Banking and Financial Law Association (ALJB) Luxembourg Bar Association (Barreau de Luxembourg) British Chamber of Commerce (BCC) Business Club France-Luxembourg (BCFL) Chamber of Employees (CSL) Employment LAW Specialists Association (ELSA) Voice of Luxembourg's Industry (FEDIL) Luxembourg Private Equity and Venture Capital Association (LPEA) Real Estate Association of Luxembourg (LuxReal)Other
Managing Partner : François COLLOT Contact : [email protected]- Dispute resolution
- Employment
- Real estate and construction