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Financial administration & outsourcing
Entrepreneurs who outsource financial administration reduce the number of administrative tasks and consequently have more time and space to focus on growth.
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Financial insight
We help you turn financial data into valuable insights that support you in making well-founded decisions. In-depth analyses of your financial situation will help give you a better idea of where you stand and where the opportunities for growth lie, both in the short and long term.
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Financial compliance
We make sure your company complies with financial legislation and regulations, with correct financial statements, tax reports and other obligations. From our global network, we support you in managing local and international tax risks.
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Impact House by Grant Thornton
Building sustainability and social impact. That sounds good. But how do you go about it in the complex world of stakeholders, regulations and frameworks and changing demands from clients and society? How do you deal with important issues such as climate change and biodiversity loss?
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Business risk services
Minimize risk, maximize predictability, and execution Good insights help you look further ahead and adapt faster. Whether you require outsourced or co-procured internal audit services and expertise to address a specific technology, cyber or regulatory challenge, we provide a turnkey and reliable solution.
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Cyber risk services
What should I be doing first if my data has been kidnapped? Have I taken the right precautions for protecting my data or am I putting too much effort into just one of the risks? And how do I quickly detect intruders on my network? Good questions! We help you to answer these questions.
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Deal advisory
What will the net proceeds be after the sale? How do I optimise the selling price of my business or the price of one of my business activities?
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Forensic & integrity services
Do you require a fact finding investigation to help assess irregularities? Is it necessary to ascertain facts for litigation purposes?
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Valuations
Independent and objective valuations tailored for mergers, acquisitions, and legal matters.
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Auditing of annual accounts
You are answerable to others, such as shareholders and other stakeholders, with regard to your financial affairs. Financial information must therefore be reliable. What is more, you want to know how far you are progressing towards achieving your goals and what risks may apply.
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IFRS services
Financial reporting in accordance with IFRS is a complex matter. Nowadays, an increasing number of international companies are becoming aware of the rules. But how do you apply them in practice?
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ISAE & SOC Reporting
Our ISAE & SOC Reporting services provide independent and objective reports on the design, implementation and operational effectiveness of controls at service organizations.
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National tax advice
Looking for tax advice in the Netherlands? We help business owners with tailor-made tax advice: from structure and compliance to innovation and sustainability.
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International tax advice
Plan to do business abroad? Our international tax advice helps you with structure and compliance, as well as offering new opportunities. Strategic, practical, and future-oriented.
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Private wealth services
Our Private Wealth specialists offer strategic and practical solutions. From tax advice to estate planning and financial scenarios, we make sure you make the right choices today, for tomorrow.
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Corporate Law
From the general terms and conditions to the legal strategy, these matters need to be watertight. This provides assurance, and therefore peace of mind and room for growth. We will be pro-active and pragmatic in thinking along with you. We always like to look ahead and go the extra mile.
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Employment Law
What obligations do you have with an employee on sick leave? How do you go about a reorganisation? As an entrepreneur, you want clear answers and practical solutions to your employment law questions. At Grant Thornton, we are there for you with clear advice, from contracts and terms of employment to complex matters such as dismissal or reorganisation.
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Sustainable legal
At Grant Thornton, we help companies integrate sustainability into their business operations, with sustainable legal at the heart of our approach. We advise on ESG (Environmental, Social, Governance) legislation, and help draft sustainable contracts, implement HR policies, and carry out ESG due diligence in M&A transactions (Mergers and Acquisitions).
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HR Services
HR is not an aspect of secondary relevance, rather a strategic factor for success. Yet many organisations struggle with issues regarding personnel policy, absenteeism, terms of employment and legislation and regulations.
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Payroll & wage tax
Payment of salaries is not a simple calculation. Laws and regulations constantly change, and mistakes can quickly cause employees to be dissatisfied or lead to tax risks.
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Compensation and benefits
The labour market is changing rapidly. Employees want flexibility, a sense of purpose and a good mixture of financial and non-financial benefits.
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Global mobility services
How can you build and evolve a smart global mobility strategy, with policies and processes addressing the complex challenges of managing an international workforce?
Grant Thornton France completes deal, joins Grant Thornton Advisors multinational platform
CHICAGO and PARIS, October 30, 2025 – Grant Thornton France has completed a transaction that makes it part of the Grant Thornton Advisors multinational platform — which was established in January 2025 with the support of an investor group led by New Mountain Capital.
This represents a significant milestone in the platform’s ongoing expansion, further strengthening its seamless connectivity and capabilities across the Americas, Europe and the Middle East. It builds on the recently announced platform acquisitions of Grant Thornton member firms in Ireland, the United Arab Emirates, Spain, the Netherlands, Switzerland/ Liechtenstein, Belgium, the Channel Islands, the Cayman Islands and Luxembourg.
The platform also includes Auxis, a pioneer in outsourcing and business modernization services, and Stax, which specializes in commercial due diligence and value creation.
Grant Thornton France stands as one of the premier accounting and advisory firms in a key global financial center. It has demonstrated consistent outsized growth, becoming one of the largest firms in the Grant Thornton International Limited (GTIL) network — with 2,800 employees across 24 offices. It is highly regarded for its commitment to quality, clients and customised solutions that drive measurable outcomes.
Through this transaction, the Grant Thornton Advisors platform will accelerate its growth in the French market. Clients will benefit from access to an even more extensive array of industry expertise and innovative solutions, amplified by substantial investments in technology and talent.
It remains part of the Grant Thornton International Limited network, which comprises member firms in more than 150 markets worldwide.
The transaction was originally announced in September of 2025.
About Grant Thornton
Grant Thornton delivers professional services in the US through two specialized 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 January 2025, Grant Thornton Advisors LLC formed a multinational, multidisciplinary platform. The platform offers a premier advisory and tax practice, as well as independent audit practices. With almost 60 offices, the platform delivers a singular client experience that includes enhanced solutions and capabilities, backed by powerful technologies and a roster of 14,000 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 Grant Thornton France
Grant Thornton France is a leading Audit and Advisory group, bringing together more than 2,800 professionals across 24 offices in France. The firm operates across four core service lines: Audit, Advisory, Accounting & Reporting Advisory, and Tax & Legal.
With a mission to empower clients to unlock their full potential, Grant Thornton France delivers strategic insight, technical precision, and a collaborative approach. Combining international reach with deep local expertise, the firm provides agile and impactful support to a diverse client base, including dynamic companies, listed firms, public entities, and private businesses.
Grant Thornton France is a member firm of Grant Thornton International Ltd (GTIL) - one of the leading audit and advisory networks in the world. ‘Grant Thornton’ refers to the brand under which the Grant Thornton member firms provide services to their clients and/or refers to one or more member firms. GTIL and the member firms are not a worldwide partnership. GTIL and each member firm is a separate legal entity. Services are delivered by the member firms. GTIL does not provide services to clients.
About New Mountain Capital
New Mountain Capital is a New York-based investment firm that emphasizes 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 newmountaincapital.com.