Supervisory Board

Investor Relations  >  Governance  >  Supervisory Board

Peter Nietzer, Chairman


Peter Nietzer (born in 1960) has been the Chairman of our Supervisory Board since 2013. He brings extensive experience to voxeljet having worked in the field of strategy, restructuring and organizaton consulting to top management for many years from 1989 to 2000 and also served as Chairman of the Supervisory Board of Wavelight AG from 1999 to 2007.

From 2000 to 2017, Peter Nietzer was Executive Board member and Managing Partner of Felicitas GmbH (previously known as GI Ventures AG), an investment management company he co-founded.

Moreover, from 2005 to 2017 he held the position of Partner and Chief Financial Officer of GermanCapital GmbH, a private equity company also co-founded by him and specializing in mid-market buy-outs.

Furthermore, Mr. Nietzer served as Non‑Executive Director of Cognis Credit Opportunities Fund Ltd., Cognis Credit Opportunities Master Fund Ltd. and Cognis Credit Opportunities Manager (Cayman) Ltd. from 2013 until 2016.

Since January 2013 Peter Nietzer has also been the owner and Managing Director of KITES Industriebeteiligungen GmbH, a private investment holding company, and of M59 Advisory Services.

Peter Nietzer holds a degree in business administration from the Friedrich-Alexander University Erlangen-Nürnberg, Germany.

Volker Neuber


Volker Neuber (born 1967) joined the supervisory board of voxeljet AG in July 2020. Mr. Neuber started his career in 1991 as a trainee with General Electric, where he held various positions from sales, marketing and Six Sigma Master Black Belt to the General Management of it's German plastics division. From 2004 to 2010, he acted as Vice President for Husky Injection Molding Systems Ltd, where he was responsible for -strategic corporate development of the markets in Europe, Africa and the Middle East. In 2010, Mr. Neuber took over the majority shares in Ettlinger Kunststoffmaschinen GmbH, a manufacturer of high-performance filters for plastics recycling. He sold Ettlinger to the US company Dover (NYSE: DOV) in 2018. Mr. Neuber is now Managing Director and Director for Recycling Systems at MAAG Pump Systems AG, a company within Dover. Particularly thanks to his wealth of experience in the plastics industry and his many years of dedication to corporate management, Volker Neuber is a valuable addition to the Supervisory Board of voxeljet AG. Mr. Neuber completed his studies in business administration and business informatics at the state technical college in Würzburg, Germany.

Kerstin von Diemar


Kerstin von Diemar (born 1977) joined the supervisory board of voxeljet AG in May 2021. From 2007-2016 she worked with Forum Media Group GmbH, an award-winning international media company with around 120 million EUR revenue (2019), driving international business growth as Head of Group M&A and as CEO. She managed 15 global subsidiaries and served as non-executive board member at nextmedia pty ltd. (Australia) and Kenilworth Media Inc. (Canada). During her time with Forum she led the successful expansion of the business into North America, Australia and Asia. She currently serves as vice-chairwoman on the advisory board of Forum Media Group, advising the group on all strategic decision-making processes.

Before joining Forum, Kerstin worked in marketing and international business development for (1996-2000) and as co-founder, managing director and shareholder for Kuffer Marketing GmbH (2001-2006). She is currently engaged as shareholder and managing director with cureVision, a Munich-based digital healthcare company, and Never Rest Sportswear, a manufacturer of sustainable sportswear.

Kerstin von Diemar holds a Diploma in sociology (Universität Regensburg 2003), completed her MBA degree in St. Gallen and at Nanyang Technological University in Singapore (MBA-HSG, 2008) and is a CFA® Charterholder (CFA Institute, 2019).

Ms. von Diemar is an outstanding entrepreneur and business executive with more than 20 years of strategic and commercial experience in fast growing companies. Together with her family she is living in Munich where she enjoys her free time as a passionate runner.