Collaborative growth in the German and European audit and tax advisory market: INTARIA and three Moore Global firms join forces
INTARIA AG, a leading provider of audit and tax advisory services for mid-sized clients in Germany, has entered into a strategic partnership with Moore Belgium, Moore DRV from the Netherlands, and Moore Kingston Smith from the United Kingdom. As part of this partnership, Moore Belgium has acquired a majority stake in INTARIA, while the INTARIA partnership will continue to lead the German operations as entrepreneurs. Over the coming years, INTARIA will expand its service portfolio through targeted acquisitions and mergers, while strengthening its geographical coverage within Germany. Through this step, INTARIA pursues a clear goal: to build a group that consistently supports mid-sized clients as a trusted full-service partner. Clients will also benefit from the merger by gaining access to integrated, cross-border advisory services for their European needs.
Moore Belgium, Moore DRV, Moore Kingston Smith, and INTARIA have already been collaborating for years within the Moore Global network and now aim to significantly deepen this cooperation as a European group of national champions. Their goal is to offer mid-sized European clients a seamless international service and to jointly address the dynamic challenges of the audit and tax advisory industry. Another declared objective of Moore Belgium’s investment in INTARIA is to accelerate INTARIA’s growth as one of the market leaders in Germany’s mid-market segment. A key driver of this growth will be Moore Belgium’s experience in both organic and inorganic expansion. As part of the transaction, operational leadership and responsibility for the German business will remain in the hands of the INTARIA partners, who will also retain a significant ownership stake. INTARIA has appointed additional partners who, together with the existing team, will drive the implementation of the ambitious growth strategy.
Targeting Acquisitions and Organic Growth
In light of a rapidly evolving market environment, the closer partnership with Moore Belgium, Moore DRV, and Moore Kingston Smith offers INTARIA the opportunity to strategically and operationally differentiate itself from local competitors as part of a European group of leading mid-market providers, while addressing significantly changing client demands in a more holistic manner. Moore Belgium, Moore DRV, and Moore Kingston Smith are the three largest Moore Global network members in Europe and have been on a dynamic growth path for several years, supported by European private equity firm Waterland, which provides capital and extensive expertise for growth strategies. Within this alliance, INTARIA sees diverse additional growth opportunities for the benefit of its clients and employees. For example, through closer collaboration, INTARIA will be able to offer its more than 1,100 clients additional services such as consulting on digital analytics or funding programs, thereby further strengthening its role as a flexible solution partner. Concurrently, as part of the growth strategy dedicated sector expertise for specific industries shall be strengthened to ultimately support clients to resolve their challenges with increased added value.
Moreover, INTARIA will gain access to the latest technological tools and AI-enabled solutions jointly developed by Moore Belgium, Moore DRV, Moore Kingston Smith, and, in the future, also by INTARIA, always with the clear goal to shape at the forefront the digital evolution of the profession. This will enable INTARIA to benefit from the use of innovative technologies for enhanced process digitalization and to strengthen its competitiveness. At the same time, maintaining high-quality, independent advisory services and close client relationships in day-to-day business will remain a key focus.
“INTARIA has developed strongly over the past years and continues to grow steadily. Our clients value our quality and our DNA that is deeply rooted in the mid-market. Through the partnership with Moore Belgium, Moore DRV, and Moore Kingston Smith – with whom we share values and goals – we will be able to serve the upper mid-market across Europe even more comprehensively and cross-border, while also paving the way for significantly accelerating INTARIA’s growth in Germany,” says Thomas Ziegler, managing partner at INTARIA.
Fabian Galler, also managing partner, adds: “The foundation of our successful development is our nearly 200 employees. Through continuously expanding our team, we have built a culture shaped by cohesion, quality awareness, and expert know-how. Based on these values, we aim to accelerate our growth path, and we are convinced that this new constellation as a strong market player will give us all an extra edge.”
Peter Verschelden, executive chairman of Moore Belgium, comments: “I am extremely pleased with this new partnership with INTARIA. As organizations, we share the same values, appreciation for our people and vision for how we want to serve our customers. This partnership allows us both to serve our customers at the same high quality standards across national borders. Germany is a crucial economic market for many customers within our group and vice versa. I look forward to growing further together.”

