Stephan Vanberg
Director FP Digital Business Solutions

With over 25 years of experience in the development and sales of enterprise software, Stephan Vanberg has a proven track record in digitalisation and the transformation of business processes. He initiates and drives innovations such as FP Sign for efficient and swift business processes. Previous positions include senior roles in sales and marketing at companies such as Open Text, Hewlett Packard, StreamServe and J.D. Edwards.

Stephan Vanberg holds degrees from the Free University of Berlin and an MBA from the Universities of Würzburg and Boston.

Jürgen Haas 
Regional Director Mailing, Shipping & Office Solutions Europe

Born in 1962, qualified industrial engineer Jürgen Haas is a management-level sales and services expert with over 30 years’ professional experience. Most recently, he has worked as an independent interim managing director and interim manager for well-known companies with a focus on B2B and B2C sales and services.

Prior to that, he occupied managerial roles as Managing Director and Director at various international service providers. 

Lars Tisken
Director freesort

Lars is a senior executive with extensive experience in start-up, turnaround and operations management in the media, logistics & postal sectors. He has worked in both line and project management at companies such as TNT Post, Postcon, Frankfurter Allgemeine Zeitung (Frankfurt General Newspaper) and Fiege Logistics. A leader with proven conceptual and implementation skills. He takes a hands-on approach with a sharp focus on achieving goals, and is used to executing and delivering on commitments.

Since January 2019 Lars has been the Director of freesort GmbH. Since taking on the role, he has initiated a large-scale business transformation with a view to enhanced market orientation, profitability, and sustainability across all areas of the business.

Michael B. Hannon 
Regional Director Mailing, Shipping & Office Solutions North America

Michael Hannon is an executive leader with extensive experience in the mailing and financial services industries. Taking on the role of Regional Director in early 2020, he is responsible for all aspects of FP’s North American regional operations. Starting in sales in 2007, he demonstrated a hands-on, customer-centric and sales-oriented approach when moving up the company ranks. Gaining industry knowledge throughout his career, he developed and implemented numerous processes and programmes, such as FP Finance and sales process automation. These have improved both sales and operations, leading to FP’s continuous growth in the region.

Prior to coming to FP, Michael was in the financial services industry, working in sales and leasing for a credit card processor as well as having an active role in local government in the City of Chicago. He is a proud graduate of Loyola University Chicago.

Dr. Alexander Granderath

(Member of the Supervisory Board and Chairman of the Supervisory Board since November 2020)



Born in 1965, studied experimental physics (nuclear physics) at the University of Cologne and subsequently earned a doctorate. After jobs at
EC Erdölchemie GmbH and Sunvic Regler GmbH,
Dr Granderath worked in managerial positions at Ametek (1995-2000), General Electric (2000-2003),
the Danaher Corporation (2003-2008), Amrop Delta Management Consultants (2009-2010) and ISS A/S (2010-2020). 

Since December 2021, Dr. Granderath has been Chairman of the Supervisory Board of Vita34 AG.

Thanks to his considerable management experience, including internationally, Dr Granderath has extensive experience in team building, technology, digitalisation and process design.

Lars Wittan

(Member of the Supervisory Board and Deputy Chairman of the Supervisory Board since November 2020)


Born in 1977, studied business economics at the Berufsakademie Berlin in cooperation with DaimlerChrysler AG. From 2002 to 2007, Mr Wittan worked at Arthur Andersen Wirtschaftsprüfungs-/ Steuerberatungsgesellschaft and then at Ernst & Young following its merger, before qualifying as a chartered accountant in 2006. He moved to Deutsche Wohnen SE in 2007, where he took on various Management Board positions (Chief Finance Officer, Chief Investment Officer, Chief Operating Officer)
from 2011 onwards. 

Since 2019, Mr Wittan has been Chief Investment Officer at Obotritia Capital KGaA. Mr Wittan is also a member of the Quarterback Immobilien AG Supervisory Board and the Advisory Board at the Kelber Group. 

Mr Wittan has extensive knowledge and experience in group accounting/IFRS, controlling, financing, M&A and the capital market.

Klaus Röhrig

(Chairman of the Supervisory Board until November 2020, Member of the Supervisory Board since November 2020)


Born 1977, Klaus Röhrig holds a Master of Economics and Business Administration. He has more than 20 years of relevant investing experience.

After graduating at the Vienna University of Economics and Business Administration he was at Elliott Associates, responsible for the funds’ investments in the German speaking countries.
Klaus Röhrig started his career at Credit Suisse First Boston in London, focusing on corporate finance and M&A for technology companies. He then founded Active Ownership Group in Luxembourg.

Throughout his career he focused on identifying investment opportunities, structuring of investments and process-driven value creation.

He serves as Member of the Board of Directors of Agfa-Gevaert NV (Chairman until August 2020), Member of the Supervisory Board of Formycon AG.