Laurent Schummer  is widely respected, with sources noting his technical skills on transactions. His M&A practice focuses on joint ventures, restructuring and matters related to listed companies. His clients include multinational companies, private equity houses and growing start-ups, recently advising TaDaweb on its second round of capital raising. Clients describe him as "very reactive" and appreciate his "excellent knowledge of the local and international environment."

Founding partner and co-chair of the firm Guy Harles is regarded as a "brilliant, business-oriented lawyer" by peers and is called upon by clients particularly "when key and critical issues need to be addressed." He focuses on international transactions, private equity investments and corporate finance. He recently advised Deutsche Bank on the sale of Sal. Oppenheim's Luxembourg asset servicing business to Fosun, Hauck & Aufhäuser.

Jean-Marc Ueberecken is "very recognised in the market," according to sources, and advises multinational corporations and private equity investors on multi-jurisdictional restructuring, change of control transactions and joint ventures. He is also experienced handling corporate finance matters, recently assisting Claire's Stores with a USD50 million Europe credit agreement.

Camille Bourke heads Arendt's London office, focusing on fund formation and private equity transactions. Sources praise her in-depth knowledge of investment funds and describe her as "incredibly personable."

US-qualified B ob Calmes  recently moved back to Luxembourg following a tenure as head of the firm's New York office. He focuses on cross-border M&A, joint ventures and fund structuring and has a strong network of US-based clients. He also handles corporate restructuring, corporate finance and venture capital transactions.

Head of Arendt's Hong Kong office, Stéphane Karolczuk advises clients in the Asia-Pacific region on Luxembourg investments and regulatory matters. He is qualified in both Brussels and Luxembourg and is registered as a foreign lawyer in Hong Kong.

Based in the firm's Moscow office, Max Kremer advises a number of investment funds, insurance companies and banks on restructuring, M&A and regulatory matters. Clients appreciate his "practical, tailored advice" and describe him as "very easy to work with."

Eric Fort recently relocated to New York and now heads the office there. He is a key point of contact for US clients seeking advice on M&A, finance and tax in Luxembourg. He also assists with private wealth mandates. Interviewees laud his "international expertise and strong knowledge of the Luxembourg legal framework."

Philippe Dupont 's capital markets practice focuses on debt, in particular securitisation and banking regulatory matters. He is highly knowledgeable of the banking sector, as one client remarks: "He is excellent for regulatory advice in this field."

A specialist on securities, François Warken  is acclaimed by clients for his "good technical knowledge, creativity and high service levels." Of late, he advised the European Investment Bank on the issuing of bonds worth EUR500 million.

Laurent Schummer  focuses his capital markets practice on equity transactions. He recently assisted BNP Paribas with the EUR300 million accelerated bookbuilding of shares issued by Eurofins Scientific. Sources highlight his efficiency: "He is very dynamic and will get right to the issues."

Stéphane Karolczuk is qualified in Luxembourg and admitted to practice in Hong Kong as a Registered Foreign Lawyer. He heads the firm's Hong Kong office, where he advises clients in the Asia-Pacific region on Luxembourg inbound and outbound investments. He guided Investec Asset Management and its UCITS fund, Investec Global Strategy Fund, on its investment in CNY fixed-income securities on the China Interbank Bond Market.

Rising to the top band following strong market recommendation, Isabelle Lebbe is a regulated funds expert and advises high-profile clients on the establishment and management of regulated funds. One client remarks: “Isabelle is a fantastic lawyer. She has a quiet demeanour but is efficient and effective,” adding: “She is commanding in her knowledge. She is influential but also an active listener.”

Leading market figure Claude Niedner specialises in UCITS and alternative fund structures. He recently led Partners Group's set-up of six SICAV-RAIFs. Clients highlight his high level of knowledge, notably in regulatory compliance work, enthusing that he is “a lawyer with deep market insight.”

Endorsed by clients for being “very knowledgeable and responsive,” Gilles Dusemon 's practice revolves around the formation of alternative investment funds, particularly private equity and real estate funds. He recently assisted Deutsche Beteiligungs with the establishment of a EUR1 billion private equity buyout fund.

Michèle Eisenhuth's clients benefit from her broad knowledge of UCITS, ETFs and hedge funds. She advised Goldman Sachs on the structuring of various UCITS products. Clients observe: “She is very confident and argues her points very well.”

Long-standing practitioner Claude Kremer  is described by one source as “very senior and experienced. He is a heavyweight to have involved at the strategic level.” He brings a wealth of expertise in global and asset fund management, with a strong focus on setting up investment and pension funds.

Prominent outfit with a large team offering both domestic and cross-border expertise in a broad range of banking and finance matters. Areas of focus include securitisation, debt instrument programmes and structured finance transactions. Assists a number of banks as well as insurance and financial services firms. Receives praise for its regulatory work, handling both contentious and non-contentious issues. Sizeable and integrated team allows for unprecedented coverage of multifaceted cases.

One client lauds the team's "technically brilliant lawyers" as well as its capacity to accommodate labour-intensive work, adding: "If you need more than one lawyer for a case, they give you the team size required."

Other clients report that the team is "pragmatic, responsive and always trying to understand client needs and adapting to them."

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Impressive and prominent team which represents a wide range of issuers at domestic and international level. Regularly advises on IPOs, public offerings, takeovers, issuances of bonds, structured notes and certificates. Also offers specialist expertise on regulatory compliance, clearing and settlement. eDreams and Scania are recent additions to the department's impressive client roster.

The department's dedication to customer service stands out: "They are always looking for a solution. They are very flexible and always available."

Another client concurs: "They are very client-oriented and responsive."

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Corporate powerhouse with a deep bench of practitioners advising on some of Luxembourg's market-leading deals. Active on a broad range of corporate transactions, restructuring and insolvency mandates. Clients include private equity houses, financial institutions and blue-chip corporates. Recent work includes acting with the public sector on the set-up of corporate entities and funds to generate new technology projects in Luxembourg as well as numerous cross-border transactions involving China, including inbound and outbound investments. Also gained Audi as a significant new client.

Clients praise the team's ability to handle complex multi-jurisdictional mandates: "Arendt & Medernach provided a service of the highest calibre. Questions were answered fully and quickly, all angles of the situation were considered and dealt with, and I was kept fully updated at all times. The firm certainly had the resources to deal fully with the project and these were correctly deployed as and when needed."

Another client says the team is "rock solid from a technical standpoint" adding: "I don't think there is another law firm in Luxembourg that could match the array of services offered by Arendt and the depth of knowledge of its team."

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Leading litigation and arbitration practice regularly representing clients such as banks, investment funds, insurance companies and public entities before courts at all levels. Breadth of work includes commercial disputes, insolvency proceedings, fraud and insurance defence. Also active in domestic and international enforcement orders. The addition of a new partner bolsters the practice's capabilities and reach.

The team receives praise for its handling of both national and cross-border disputes: "They are very good insiders for Luxembourg litigation, but at the same time they have an international attitude and are perfect for the needs of a client who is abroad."

One source enthuses that the dispute resolution team is "best in class."

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Esteemed labour law team advising on both contentious and non-contentious employment issues for clients in a variety of industries including financial services, the public sector and the mining sector. Frequently advises on employment aspects of cross-border mergers, recently including work for UK companies looking to establish EU companies with subsidiaries in Luxembourg. Advises on a broad range of other general employment law matters including corporate restructuring, immigration, employment and remuneration policy. Reputable litigation practice regularly representing clients in court on a range of disputes.

Clients appreciate the team's methodical, client-focused approach, reporting that "their advice is always clear and precise"and that "they take the time to evaluate all possible solutions." The same source adds that "it is a versatile team; when a colleague is not available there is always someone to answer our questions."

Another client highlights the team's strong track record in court cases and high level of expertise, appreciating that "the lawyers are co-operative, flexible and provide the right kind of service."

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Investment fund powerhouse acting for a range of clients, from small start-ups to large asset managers. Advises on a range of funds, including UCITS, hedge funds, private equity funds, real estate funds and Islamic funds. Jyske Bank is a recent client win for this team.

One client enthuses: “They are top-notch in terms of responsiveness and quality of output.”

The firm's impressive dedication to its clients' needs stands out: “Arendt have tailored their service to our preferred working approach and they provide prompt and commercial advice.”

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Premier practice offering multifaceted advice for leading private equity players, including the structuring of funds and investments in addition to corresponding regulatory advice. A deep bench of lawyers facilitates a high volume of private equity-related work. Particularly active in the field of debt funds. Also demonstrates notable proficiency on transactions in the telecoms and technology sectors.

Clients hail the team's “excellent customer-oriented attitude.”

Another source appreciates that "they were very responsive," and adds that "the quality of the work was very high.”

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Well-established top team delivering full service to clients on domestic and cross-border deals, with notable work in the commercial, infrastructure and residential sectors. Experience includes advising international investment funds and companies on the structuring of joint ventures, acquisitions and development projects. Also acts on planning and regulatory elements of real estate transactions.

One client remarks: "They are always responsive, diligent and available to meet our needs, often at short notice, and they respect deadlines."

Another source enthuses: "The quality of their work is very good. They are diligent and reliable."

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Leading tax practice widely recognised for advising multinational corporations and financial institutions. Also assists sponsors and investors with private equity and real estate transactions. Acts on audits by the national tax authorities and on the verification of data reporting. Additionally provides a strong VAT offering and highly rated in-house consultants. Able to handle cross-border mandates thanks to the recent move of Eric Fort to head the team's New York office.

Interviewees note that the "first-rate" team is "up to date with all the issues that arise and is very easy to deal with."

Clients also appreciate that the lawyers are "clear and focused" and add that "their main strength is that they are pragmatic and always looking to see how best to address our concern."

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Advises on a range of IP matters, with an active litigation practice representing clients in disputes over trade marks, patents and copyrights. Acts for clients from various sectors on licensing and distribution issues, data protection issues including GDPR compliance and IT matters such as outsourcing and e-commerce. With members of the team integrated within the firm's leading corporate and commercial law departments, the team is frequently called on to handle IP aspects of M&A transactions.

Sources note the team's pragmatism and praise its legal knowledge, with one saying: "They had very good knowledge of Luxembourg and EU law and a real capacity to translate it into actionable solutions."

Another applauds the firm's "accuracy and knowledge of the field" and its "practical approach to solving issues."

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Objective, independent and research-based, the Chambers High Net Worth guide recognises the world’s leading high net worth advisers.

A source calls Arendt & Medernach "a top-notch firm" and adds that "they're creative, they listen to clients' needs and are flexible." This full-service firm handles a wide variety of wealth planning matters for an impressive client base of high net worth international families.

The firm's lawyers offer wealth structuring and planning expertise relating to trusts, corporate vehicles and donations, and also help clients with Luxembourg migration and domicile matters. "They are our top choice in Luxembourg" says a source, explaining: "I like their responsiveness, the quality of the response, and the depth and width of their knowledge base. They are capable of providing an expert answer, no matter what your enquiries are."

Notable practitioners

- Firm co-chairman and founding partner Guy Harles "is an excellent lawyer with very broad knowledge" according to one observer. He advises clients on a range of wealth structuring matters alongside his work on M&A transactions and private equity investments. "I appreciate his wealth of experience" says a market commentator, while another local source adds: "He's very close to his clients, he has a great team and he always ensures that they're up to speed on cases. I appreciate and like working with him very much."

- Eric Fort  is "wonderful, he's the best in class in my view" says one impressed interviewee. Fort is a partner in the firm's tax and private wealth teams. According to one market commentator, "he's very precise, very competent, and he totally understands the clients' issues. He gives top advice." Another source values his ability "to deal with complex structuring in a range of different situations" adding: "I think he's very solution-driven, he understand problems quickly and he has a large amount of experience, which helps. He's also a very nice guy, which clients appreciate."

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