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Audit of stand-alone annual accounts
At Grant Thornton Luxembourg, our team of experts is specialised in audits of stand-alone annual accounts.
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Audit of consolidated annual accounts
Grant Thornton Luxembourg team of experts is specialised in providing audit services to a lot of multinational which have their administrative center located in Luxembourg for whom the consolidated annual accounts have to be audited.
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Agreed-Upon Procedures Engagements
In the case of agreed-upon procedures engagement, Grant Thornton Luxembourg performs procedures particularly requested by the client/bank and reports on the findings.
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GDPR-CARPA Certification
Grant Thornton Audit and Assurance is accredited by the Commission Nationale pour la Protection des Données (CNPD) to provide GDPR-CARPA certifications for organisations.
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Forensic Audit
Grant Thornton Luxembourg has the forensic and business skills to deal with the most complex situations. A multi-disciplinary team of dedicated accountants in consultation with lawyers, IT consultants, insurance experts, valuation specialists and actuaries may be engaged when necessary.
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Supervisory Auditor (Commissaire)
Grant Thornton Luxembourg has a dedicated team of experts committed to deliver services to reserved to Supervisory Auditor or "Commissaire aux Comptes".
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Liquidation Audit
Grant Thornton Luxembourg has a dedicated team of experts committed to deliver services to reserved to liquidation audit "Commissariat à la liquidation".
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Assurance Engagements
Grant Thornton Luxembourg have a dedicated team of experts committed to work on audit and assurance special engagements.
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IFRS Services
At Grant Thornton Luxembourg, our experts can help you navigate the complexity of International Financial Reporting Standards (IFRS).
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Valuation
Grant Thornton Luxembourg helps clients evaluate and implement various strategic alternatives through our comprehensive suite of corporate value consulting services. From opinions, board solutions and services, to valuation and modeling, we can assist you with value added services throughout the transaction lifecycle.
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Business Risk Services
Mitigate risk and achieve compliance with solutions that address your unique challenges. From governance frameworks to risk assessments, we provide practical strategies to safeguard your business.
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Consulting
Grant Thornton’s Consulting team is your trusted partner in transformation. We help you turn challenges into opportunities and lead your business confidently into the future.
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Data Protection and Privacy
Protect your business and ensure regulatory compliance with tailored data privacy frameworks. We help you manage risks, meet GDPR requirements, and secure sensitive information.
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Deal Advisory
Whether you’re navigating a merger, raising capital, or preparing for restructuring, Grant Thornton’s Deal Advisory team provides expert guidance to help you make informed decisions and achieve your goals.
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Financial Accounting and Advisory Services (FAAS)
We bring practical solutions that facilitate your daily work, allowing you to focus on your business growth while ensuring compliance and efficiency in all financial matters. Let us guide you through the intricacies of financial accounting and advisory to set your business up for success.
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Forensic Accounting
We provide customised forensic accounting solutions to help you uncover key facts, resolve disputes, and mitigate risks in multi-jurisdictional and complex environments.
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Governance, Risk & Compliance
Navigate complex regulations and governance challenges with ease. We help you design and implement effective GRC frameworks that align with your strategic goals and meet regulatory requirements.
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Sustainability & ESG Services
We empower organisations to define and achieve their environmental, social, and governance (ESG) goals with actionable strategies. Our comprehensive advisory services help you ensure compliance, improve performance, and build trust with stakeholders.
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Whistleblowing Services
Create a culture of transparency and accountability. We assist in implementing robust whistleblowing frameworks, ensuring compliance with legal requirements and building trust within your organisation.
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Alternative Investment Services
Grant Thornton Luxembourg is a bespoke business partner to established Alternative Investment Fund (“AIF”) Managers (“AIFM”) as well as independent Managers launching start-up Funds and seeking for a single entry point in Luxembourg in order to set-up and manage their Luxembourg domiciled Funds.
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Fund Administration
Fund Administration - Grant Thornton Luxembourg offers a full range of tailored solutions to our clients.
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Registrar & Transfer Agency Services, Client Reporting
Grant Thornton Luxembourg provides investors with confirmations, final Contract Notes and regular statements upon finalisation of the Fund’s Net Asset Value, We handle all wire payments and transfers, including the processing of distribution dividend payments, and perform in-depth Anti-Money Laundering Counter Terrorism Financing and Know-Your Client due diligence checks on investors.
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Fund set-up, Launch & Corporate life
High-quality product structuring and legal services have become a crucial tool enabling industry players to get through the major changes impacting their business development, strategy and organisation as a whole. Our Investment Management practice at Grant Thornton Luxembourg is your one-stop place for expert advice combining pragmatism and a unique in-depth knowledge of the Luxembourg market.
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AML Compliance Services
Grant Thornton Luxembourg helps its Clients to keep compliant with AML-CTF laws and regulations and provide an expert skilled team.
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Regulatory Reporting Delivery
Grant Thornton Luxembourg has set up a Business Process Outsourcing Solution that manages and mutualises regulatory expertise, reporting solutions and skilled human resources
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Legal Support & Corporate Services
Grant Thornton Luxembourg delivers Legal Support & Corporate services.
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Accounting & Reporting Services
Grant Thornton Luxembourg may explore the specific characteristics of your company in order to provide a personalised assistance in the fields of Accounting & Reporting services.
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Corporate Tax Compliance
Grant Thornton Luxembourg may explore the specific characteristics of your company in order to provide a personalised assistance in the fields of corporate tax compliance.
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Corporate Finance
Exploring the strategic options available to you as a business or shareholder, advising and project managing the chosen solution, Grant Thornton Luxembourg provide a truly integrated corporate finance offering. Merger & acquisition, buying a business, selling a business, transaction piloting,raising finance to support your business plans.Vendor due diligence, acquisition due diligence, reporting accountant work,operational due diligence, management assessment.
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Corporate Secretarial Services
Grant Thornton Luxembourg provides corporate secretarial services to enable our clients to comply with their legal and administrative obligations in Luxembourg.
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Cross-Border Tax
Tax policies are constantly evolving and there are a number of complex changes on the horizon that could significantly affect your business. We can help you with practical advice such as VAT and direct tax.
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Direct Corporate Tax Advice
Grant Thornton Luxembourg understand the complexity of national and international tax laws. We can unlock your potential for local and international growth.
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Expatriate Tax
Although international employment has become a standard practice in business life, employers and their assignees are still faced with numerous questions in this area. Grant Thornton Luxembourg can help you to be one step ahead.
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Human Resources Management & Payroll
Grant Thornton Luxembourg has been delivering since 1987 Payroll and Human Resources services to private and institutional clients. A team of highly qualified collaborators manages around 7 000 payslips per month and offers related consulting services.
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Liquidation & Insolvency
Grant Thornton Luxembourg can draw on years of experience in the areas of liquidation and insolvency and then make sensible recommendations on how best to deal with your financial crisis.
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Personal Tax
Our experienced multilingual Personal Tax Team is keen to give you tailored solutions, optimise your situation and help you make decisions. We could assist you with: income tax returns, vat returns, tax assessments, contacts with the tax authorities and assistance by tax audit or tax litigation, tax matters advices, inheritance tax matters, international assignments and trainings.
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Transaction & Reorganisation
Reorganisations - Transaction Planning - Tax Structuring - M&A. Companies strive to improve their market position with take-overs, mergers and demergers. Strategy and financial tactics are important elements in this respect. Grant Thornton tax specialists may intervene in all stages of the transaction.
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Set-up, Restructuring & Business Planning
Grant Thornton Luxembourg is delighted to add value during the implementation of your businesses and to be given the opportunity to grow together with you. Relying on our professionals’ financial expertise will allow you to take dynamic but sustainable decisions.
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Tax - Financial Services & Operational Tax
Our Tax - Financial Services team provides tax advisory services relevant for the Financial Services Industries and Operational Tax assistance. This includes tax advice, automatic exchange of information (FATCA, CRS, DAC 6, DAC 7 and DAC 8), advisory and compliance assistance regarding the US Qualified Intermediary (QI) regime, assistance regarding withholding tax reclaims, investor tax reporting and tax structuring in the context of Islamic finance.
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Transfer Pricing
The laws surrounding transfer pricing are becoming ever more complex, as tax affairs of multinational companies are facing scrutiny from media, regulators and the public. Grant Thornton Luxembourg can help you manage your transfer pricing risks and find opportunities.
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VAT and Other Indirect Tax Advice
Our VAT advisory business line is dedicated to keeping you up to date with amended VAT legislation and changes in the administrative practice in Luxembourg and worldwide with our Grant Thornton global VAT network. Specialists review and comment on new EU directives and the latest case law by the Court of Justice of the European Union in order to provide you with advice tailored to your specific needs.
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VAT and Other Indirect Tax Compliance
Handling the day-to-day VAT compliance obligations requires being close to your business. Our VAT compliance business line assists you to ensure that long term reporting processes are implemented and respected with the aim of safeguarding a proper and timely VAT filing. This is important for achieving a VAT compliant environment and mitigating local VAT risks.
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Information Security
Is your organisation resilient to information security threats? Whether you're a large enterprise or a small business, Grant Thornton is committed to providing comprehensive security services tailored to your needs.
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IT Audit
Grant Thornton internal audit team provides IT audit services as part of your internal audit or as part of any specific IT audit that is required (ad’hoc , assurance reports, external audits).
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MySmartOffice
Grant Thornton Luxembourg offers a new complete online accounting and consulting solution for SMEs named MySmartOffice to access financial and operational information instantly online.
Grant Thornton Luxembourg to join multinational platform led by Grant Thornton Advisors LLC
Expanded multinational organisation will seamlessly deliver high quality, enhanced solutions and world-class talent in additional geography.
CHICAGO – LUXEMBOURG, Wednesday 23 April 2025 — Grant Thornton Luxembourg today announced that it has reached an agreement to unite with Grant Thornton Advisors LLC (Grant Thornton Advisors). Through the agreement, Grant Thornton Luxembourg will join the multinational platform that Grant Thornton Advisors initially created earlier this year with Grant Thornton Ireland.
The platform was established with the backing of an investor group led by New Mountain Capital, a growth-oriented investment firm with approximately $55 billion in assets under management. The expanded platform will continue to be part of the Grant Thornton International Limited network, which comprises member firms in more than 150 markets worldwide.
The platform now has a multinational team of more than 13,000 professionals across more than 50 offices. With the addition of Grant Thornton Luxembourg, the platform can now offer broader capabilities to a growing client base and further enhance the talent and quality of its unified advisory and tax services. The combination also brings strength to its independent audit and assurance practices. Additionally, this move bolsters its standing in one of the world’s most prominent international financial centers, with aggregated access and expertise in major growth industries including banking, asset management, insurance and energy.
The CEO of Grant Thornton Advisors, Jim Peko, will continue to lead the platform, and Ralph Bourgnon, partner – board and management committee member, Grant Thornton Luxembourg will maintain management of his geography.
Along with the addition of Grant Thornton Luxembourg, Grant Thornton Cayman and Grant Thornton UAE have also joined the unified organisation through separate transactions with Grant Thornton Advisors.
The platform will continue to explore growth opportunities in additional service lines and regions where there is economic alignment, client consistency and industry-service intersection.
“Scaling our offerings and footprint by uniting with Grant Thornton Luxembourg underscores our focus on advancing a combined platform, with multinational experience and exemplary quality,” said Peko. “In a fast-moving business environment, clients need trusted advisors that deliver high-quality and innovative solutions across dynamic high-growth sectors and geographies. Our focus is on creating a world-class client experience.”
Ralph Bourgnon said: “Today marks a pivotal milestone for Grant Thornton Luxembourg. It not only fuels our momentum and gives our professionals unique and exciting opportunities, it also bolsters our technology resources, access to solutions for the local market and across many regions, and expertise spanning financial hubs.”
“This platform is unlike any other in the accounting and consulting industry — delivering a singular experience and exceptional quality,” said Andre Moura, managing director, New Mountain Capital. “We look forward to supporting Grant Thornton Advisors in bringing together additional service providers in our united, global structure.”
The transaction is subject to regulatory approvals and other standard closing conditions.
About Grant Thornton Luxembourg
Grant Thornton Luxembourg is a leading provider of Audit & Assurance, Business Advisory, Internal Audit, Financial Services, Tax & Accounting and Technology services for all entities in Luxembourg. With more than 350 people and 27 partners, we combine a strong technical guidance with an experienced dedicated staff to ensure that clients receive a truly different experience.
About Grant Thornton US
Grant Thornton delivers professional services in the US through two specialised entities: Grant Thornton LLP, a licensed, certified public accounting (CPA) firm that provides audit and assurance services ― and Grant Thornton Advisors LLC (not a licensed CPA firm), which exclusively provides non-attest offerings, including tax and advisory services.
In 2025, Grant Thornton formed a multinational, multidisciplinary platform with Grant Thornton Ireland. The platform offers a premier transatlantic advisory and tax practice, as well as independent American and Irish audit practices. With $2.7 billion in revenues and more than 50 offices spanning the U.S., Ireland and other territories, the platform delivers a singular client experience that includes enhanced solutions and capabilities, backed by powerful technologies and a roster of 12,000 quality-driven professionals enjoying exceptional career-growth opportunities and a distinctive cross-border culture.
Grant Thornton is part of the Grant Thornton International Limited network, which provides access to its member firms in more than 150 global markets.
Grant Thornton LLP, Grant Thornton Advisors LLC and their respective subsidiaries operate as an alternative practice structure (APS). The APS conforms with applicable laws, regulations and professional standards, including those from the American Institute of Certified Public Accountants.
“Grant Thornton” refers to the brand under which the member firms in the Grant Thornton International Ltd (GTIL) network provide services to their clients and/or refers to one or more member firms. Grant Thornton LLP and Grant Thornton Advisors LLC serve as the U.S. member firms of the GTIL network. GTIL and its member firms are not a worldwide partnership and all member firms are separate legal entities. Member firms deliver all services; GTIL does not provide services to clients.
About New Mountain Capital
New Mountain Capital is a New York-based investment firm that emphasises business building and growth, rather than debt, as it pursues long-term capital appreciation. The firm currently manages private equity, credit and net lease investment strategies with approximately $55 billion in assets under management. New Mountain Capital seeks out what it believes to be the highest quality growth leaders in carefully selected industry sectors and then works intensively with management to build the value of these companies. For more information on New Mountain Capital, please visit https://www.newmountaincapital.com/.