Moore Belgium has announced the addition of De Deyne, Verhoeye, an established name in the country’s accountancy and tax sectors, to its portfolio.
The arrival of De Deyne, Verhoeye Accountants & Tax Consultants, enhances Moore Belgium’s accountancy and tax services, signalling another step in its plan to grow strategically through acquisitions.
“Growth is not a sum of numbers, but the result of conscious choices. Choices to connect, strengthen, and think ahead. At Moore, we are building an organisation that is not only growing, but also becoming smarter, stronger, and better aligned with the future,” Moore Belgium states in its 2025 annual report.
This M&A strategy has seen a significant shift in recent years; from growing as fast as possible to growing in the right regions and within specific service lines. “We have defined clear service lines – Audit & Assurance, Finance & Accounting, Tax & Legal, Advisory and Moore Business Analytics – around which we structure our offering,” explains Mieke van Aerde, Moore Belgium’s group office director (also known as its ‘Chief Heart Officer’).
“We want to ensure that each of the service lines carries sufficient weight, and therefore we concentrate our acquisitions on the gaps that still exist.”
This resulted in 11 acquisitions in 2025 (compared to 15 in 2024), including DNA33, which comprised five consultancy firms – ngage, asUgo, darwind, Squareflow, and NetCircular – and employed more than 200 consultants, turning over approximately €27.5 million in revenue. With its addition, Moore Belgium became the country’s fourth‑largest consultancy by headcount.
“Actually, we weren’t looking for an acquirer at all. Two factors led us to enter into discussions anyway: complementarity at the strategic level and the human fit. We consider the latter extremely important,” explains one DNA33 partner and ngage MD, Christophe Haulet.
After a year with Moore Belgium, he explains the human fit has been confirmed, and there is a sense of excitement as many opportunities still lie ahead.
What it takes to match with Moore Belgium
A good professional click (how you view the business you want to develop further together) as well as a human click (how you treat our greatest asset, i.e., your people) are integral to Moore Belgium’s M&A strategy.
“The strategic fit is based on how we view the market, its developments and the future of our profession,” reveals Mieke. “With culture fit, the feeling is either there or it isn't. We base our assessment on our values – entrepreneurial spirit, knowledge sharing, an open feedback culture, a drive for innovation – and gauge how candidates feel about them.”
The reason? Without these two crucial elements, a successful integration can never follow the acquisition. “Our gut feeling is crucial. So far, it has rarely let us down,” Mieke emphasises.
It was this gut feeling that brought Moore Belgium to De Deyne, Verhoeye’s doorstep. Based in Lievegem, it aligns perfectly with Moore’s plans to place greater focus on consulting activities in Wallonia and Brussels.
Founded in 1950 by Frans De Deyne, and with father Jan and son Joost Verhoeye at the helm, the office has grown into a reliable partner for many entrepreneurs in Belgium. The firm has 30 employees, consisting of several certified accountants and certified tax advisors who – like the firm – are members of the statutory Belgian professional organisation ITAA (Institute for Tax Advisors & Accountants).
De Deyne, Vehoeye works fully digitally, with only matters that are still legally required on paper (such as filings with the commercial court) handled in analogue form.
This method matches how Moore Belgium approaches integrations and uses technology as an accelerator. “Previously, we were seen as a group specialised in accountancy, tax, and audit. Today, consultancy in digitalisation, technology, and transformation is also an integral part of our expertise. It ensures that we can cover the entire customer journey for companies: from startup to all the effects that growth entails: tax, staffing, HR, …” says Mieke.
Improved integration through a group office
Moore Belgium established the group office in 2025 to manage growth and improve its integration promise to new targets. “We felt that we needed even more structure in our development. That is why we have bundled integration management with our process office, internal communication and change, as well as a program and project management office [PMO] within our Group Office to centralise our approach to project management,” Mieke explains. Historically, the system in this area stemmed solely from our employees' enthusiasm. “Now, we have a clear framework to work within.”
Where the integration process usually kicks off after closing, Moore starts during the deal process. “At the end of the due diligence process, we always join the so-called expert session on behalf of the integrations, where we meet the new companions joining Moore for the first time,” Mieke shares.
“This allows us to learn the firm's initial approach, get a feel for the firm's culture and already know which priorities we will need to set during the integration process.”
Moreover, the integration process runs on two major tracks, concurrently: On the one hand, the firm is linked to Moore Group Services (HR, finance, digital services, communications, marketing and legal), while on the other hand, a process is initiated to establish collaboration with the service line or business unit.
“From the start of the integration process, we connect both worlds in open consultation, setting a clear course, but with respect for both sides of the table,” Mieke notes.
By this definition, the process of integrating De Deyne, Verhoye has already begun.
