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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 Advisors expands multinational platform by welcoming Grant Thornton New Zealand
CHICAGO and AUCKLAND, November 3, 2025 – Grant Thornton Advisors LLC (Grant Thornton Advisors) today announced that its multinational platform is growing to include Grant Thornton New Zealand — a move that extends the platform’s reach across 20 time zones into the Asia Pacific region.
The New Zealand firm is a recognized leader in its region, with US$40+ million in annual revenue and a team of more than 300 dedicated professionals. It is known for its strength in key markets and its reputation for delivering leading audit, tax and advisory services.
Grant Thornton Advisors launched its platform earlier this year with the support of an investor group led by New Mountain Capital — and is already bringing more than a dozen high-performing firms across the Americas, Europe and the Middle East into an integrated advisory and tax practice, complemented by independent audit practices.
The platform currently includes Grant Thornton firms in the US, Ireland, France, the United Arab Emirates, the Netherlands, the Channel Islands and the Cayman Islands. Additionally, it previously announced transactions with Grant Thornton firms in Spain, Switzerland, Liechtenstein, Belgium and Luxembourg, which it anticipates closing in the coming weeks. Further, it has added top firms serving strategic markets and industries, including Auxis, a pioneer in outsourcing and business modernization — and Stax, a specialist in commercial due diligence and value creation.
“Modern businesses demand seamless service and consistent quality — whether they’re operating in New York, Auckland or locations in between,” said Jim Peko, CEO of Grant Thornton Advisors LLC. “By welcoming Grant Thornton New Zealand to our platform, we’re expanding our multinational reach into a vital region with a firm that shares our ambition and values. Together, we’re building a truly borderless one-of-a-kind platform that delivers exceptional outcomes across industries and geographies.”
According to Russell Moore, CEO of Grant Thornton New Zealand: “This is an extremely exciting time for Grant Thornton New Zealand — for our business, our people and for the clients we work alongside. As our market continues to evolve, businesses are looking for smarter solutions, deeper expertise and global connectivity. By joining Grant Thornton Advisors, we can deliver all three — bringing world-class technology, insight and capital to help our clients grow with confidence, both in New Zealand and beyond.”
The transaction is expected to close later this year.
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.
Simpson Thacher & Bartlett LLP and MinterEllison provided transaction services to Grant Thornton Advisors. Major advisors to Grant Thornton New Zealand included Tompkins Wake.
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 offices across the Americas, Europe and the Middle East, the platform delivers a singular client experience that includes enhanced solutions and capabilities, backed by powerful technologies and a roster of more than 18,000 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 New Zealand
Grant Thornton New Zealand is a leading professional services firm providing audit, tax, and advisory services to dynamic organisations across key sectors of the New Zealand economy. With 37 partners and more than 300 professionals and in Auckland, Wellington and Christchurch, we combine local insight with global reach through the Grant Thornton International network, spanning more than 150 markets.
We’re known for our collaborative, client-centred approach and invest the time needed to understand each client’s ambitions, challenges and opportunities.
Our teams combine deep technical expertise with fresh, commercial insight to deliver practical solutions that create real impact. Agile and responsive, we work alongside clients to achieve the outcomes that matter most - whether that’s improving performance, growing value, or building investor and stakeholder confidence.
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.