At Impact House, we help optimize your impact in a purposeful and strategical way. Do you want to know which impact strategy will make a real difference? And how do you make this impact measurable and visible? Let's get the conversation started.
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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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Pension advisory services
Pension is more than an obligation. It is a strategic term of employment that touches upon your employer brand, financial scope and responsibility to provide for your employees.
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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?
How can we make our impact measurable and visible?
- How do we gain visibility into our impact on people and the environment and build more insight at our own pace?
- How do we gain more insight into the impact of a changing world on our organization?
- What indicators and data do we use to make responsible and strategic decisions?
- What additional ESG data must we collect to comply with European guidelines?
- How do we report on our performance and impact?
From reducing CO2 to the livability of neighborhoods to understanding the risks due to climate change and loss of biodiversity; you need reliable data to manage your impact. The challenge lies in identifying the right indicators and data sources. And in interpreting that data properly. We help you with both.
Collecting data
At Impact House we work together to find the measurement that suits you. We have broad experience in various forms of primary and secondary data collection for commercial and community organizations and governments.
Whether it is about your supply chain, data on natural capital or interviewing participants in social programs: our team discovers reliable data sources with which you can measure and monitor your impact.
Moreover, we are happy to advise you on the most important guidelines, international standards and validated methods so that your measurement is always in line with what the outside world demands. Our keen eye ensures that we make optimal use of the data we collect with you.
Gaining insights and improving
Together we interpret data and make improvement plans for the future. In this way, we create a cycle of impact optimization that includes the (financial) risks. That is the core of impact management. This is how we ensure long-term value creation and social impact.
Effective reporting and communication
We value clear, concrete communication. No fuzzy, thick reports with us. You get fact sheets, clear dashboards and reports that are in tune with real-life situations.
Measuring impact has much to offer
- You monitor the progress of your projects, investments and sustainability and impact policy
- You are accountable to your stakeholders such as consumers, clients, financiers and/or shareholders
- You motivate employees by making their contribution to a better world visible
- You increase trust in your organization among financiers, partners and society

