Munich, 1 July 2026 – WTS, an international full-service provider of tax and complementary financial advisory services, is kicking off the 2026/27 financial year with Björn Viebrock as CEO of WTS Germany and Group COO of WTS Group Holding. With this appointment, WTS is reshaping its leadership structure and accelerating its transformation and international expansion, which was initiated with the entry of the private equity firm, EQT. The goal is to establish a European Champion in tax-centric advisory.
Björn Viebrock joins from PwC, where he has held senior management roles in various countries and offices since 2007 – including serving as head of PwC’s largest Tax & Legal business unit in the German state of North Rhine-Westphalia. In recent years, he has also been a member of the management board with responsibility for PwC’s overall German Tax & Legal platform, which has more than 2,500 employees and a turnover of over EUR 680 million.
At WTS, he assumes a dual role: succeeding Fritz Esterer as CEO of WTS Germany while also strengthening the international leadership team as Group COO of WTS Group Holding, which serves as the umbrella for all WTS national entities. As Group CEO, Fritz Esterer will focus on expanding the Group’s international presence by establishing new national subsidiaries in additional markets, as well as on acquisitions and advising multinational corporations.
Viebrock joins WTS at a time of dynamic growth and technological transformation. The firm is investing substantially in new technologies, platforms and AI solutions to enable clients to benefit from faster, more transparent and increasingly automated processes. This direction is further underscored by the appointment of Alexander Post as Chief Technology & Product Officer. Earlier this year, WTS expanded into Poland and the UK, and throughout the course of the year, a further number of high-calibre partners from growth areas such as transfer pricing, international tax and transaction taxes will be joining the firm.
“It is impressive how quickly WTS is currently transforming and evolving. The establishment of a European organisation underlines our commitment to providing our clients a unique, technology-driven service offering of the highest quality, across all national subsidiaries and with clear European roots. WTS is exceptionally well-positioned for this: with outstanding tax expertise, leading AI capabilities, the independence that comes from not conducting annual audits, and a clear understanding of what clients really need. I am very much looking forward to the WTS spirit and our shared transformation and growth agenda. With excellence and empathy, we will conquer the European market together with our leading experts and young talents,” says Björn Viebrock.
"WTS was founded more than 25 years ago, and I am very proud of what we have achieved since then. With Björn Viebrock, we have found an outstanding successor for me as CEO of WTS Germany. He brings more than 20 years of experience in building advisory practices and has the exact entrepreneurial spirit needed to continue WTS's success story. I, very much look forward to working with him on our vision of a European Champion and extend him a warm welcome to WTS," says Fritz Esterer.
In 2025, WTS entered into a long-term strategic partnership with the global private equity firm EQT. EQT is invested in WTS through its flagship private equity fund, EQT X, which has a total fund volume of EUR 22 billion.
About WTS
WTS is an international full-service provider of tax and complementary financial advisory services headquartered in Munich, Germany. The firm specializes in high-end advisory services for complex situations and delivers efficient & reliable ongoing tax compliance support. WTS counts large multinational corporations as well as numerous mid-sized global market leaders among its clients, counting 95% of the Dax40 companies amongst its clients.
With a consistent technology- and AI-centric advisory approach, WTS is one of the pioneers of the digitalization of the tax consultancy industry. WTS deliberately refrains from conducting annual audits and is therefore an independent and long-term partner.
WTS has 11 offices across Germany and also operates locations in Poland and the UK. Through its international network, WTS Global, the company has a presence in more than 100 countries.
