Mr. Biewener’s notable assignments include the design and implementation of branch and other operating models with various clients. Notably, Mr. Biewener was responsible for the indirect tax workstream of a global procurement organization implementation project. He has worked with clients across various industries, including consumer products, energy, and life sciences. 

Prior to joining A&M, Mr. Biewener spent over seven years with the EY Indirect Tax team in Düsseldorf, where he most recently served as Senior Manager. During his time with EY, he supported clients on complex indirect tax matters arising from the restructuring of business operations and conducted VAT and general tax audits as well as extensive self-disclosures.

Mr. Biewener earned a diploma in tax (Diplom-Finanzwirt (FH)) from the Hochschule für Finanzen NRW and is a certified tax advisor in Germany.