WTS Group is an international consulting group with tax, legal and consulting business units. The company was formed in 2000 by former employees from the central tax department of Siemens. Shortly afterwards a large part of the tax department at Mannesmann also joined.
In order to avoid any conflict of interest, WTS refrains from conducting annual audits. In 2017 WTS Group was, based on sales figures, No. 7 of the largest tax advisory firms in Germany
In 2018 Franz Prinz zu Hohenlohe the former head of the international tax service line at KPMG Germany joined the board of WTS AG.
In 2020, the Executive Board was expanded with CFO Johannes Krabichler and Jürgen Scholz.