RAUMEDIC AG Executive Board

Introduction of the Executive Board

William F. Gearhart – Chief Executive Officer USA

Since 2017, William F. Gearhart has been the CEO of RAUMEDIC Inc. based at Mills River, USA, bearing overall responsibility for the North American market. His career is characterized by different positions within the US medical technology industry.



Professional Career:

since 2017
RAUMEDIC Inc., Mills River, NC
Chief Executive Officer

2015 – 2016
Cianna Medical Inc., Aliso Viejo, CA
Independent Contractor

2014 – 2015
Dune Medical Devices, Philadelphia, PA
Vice President, Sales and Marketing

2010 – 2013
ImpediMed, San Diego, CA
Senior Vice President Sales and Marketing

1999 – 2010
CR Bard, Irvine, CA
Vice President of Sales and Marketing, Business Development

1997 – 1999
ev3, Irvine, CA
Executive Vice President of Sales and Marketing

1995 – 1997
Boston Scientific, San Diego, CA
Vice President of Sales and Marketing

1993 – 1995
Pfizer, Minneapolis, MN
Division Vice President

1990 – 1993
St. Jude Medical, St. Paul, MN
Director of Global Marketing

1986 – 1990
Medtronic, Minneapolis, MN
Director of Marketing, Pacemaker Division and New Business Ventures


University of Pennsylvania - The Wharton School
Bachelor of Science (B.S.) in Economics, Majored in Accounting

University of Michigan - Stephen M. Ross School of Business
Master of Business Administration (M.B.A.), Marketing and Strategic Planning

Mitchell Hamline School of Law
Juris Doctor (J.D.) Corporate Law

Martin Bayer - Chief Executive Officer

Martin Bayer has been the sole Director of the RAUMEDIC AG since 2008. Prior to that he headed the strategic South Eastern Europe business segment of REHAU GesmbH Guntramsdorf, the Vienna/Austria branch of the sister company REHAU AG.



Born: 1961 in Augsburg

Professional Career:

since 2008
RAUMEDIC AG, Helmbrechts

2003 – 2008
REHAU GesmbH Guntramsdorf, near Vienna
Manager of the strategic business sector of South-East Europe Industry, Member of the Regional Executive Board

2001 – 2003
Wacker-Chemie GmbH, Munich
Vice President Distribution with worldwide responsibility for all distributors and agents

1999 – 2001
Wacker Quimica Iberica SA, Barcelona, Spain
Board Executive

1997 – 1998
Wacker Chemicals Pty. Ltd. South Africa, Johannesburg
Business Manager

1990 – 1996
Wacker-Chemie GmbH, Munich
Lawyer in the group legal department, emphasis on purchasing, finance and accountancy


1981 – 1989
Degree in Law, Augsburg University

1971 – 1980
Humanistisches Wilhelmsgymnasium, Munich, A levels / high school diploma

  • [Translate to us englisch:] Kernen Bernhard CFO

Bernhard Kernen - Chief Financial Officer

Since July 2017, Bernhard Kernen has headed the department of Finance and Organization at RAUMEDIC AG. The Swiss from the Canton of Berne has worked in various positions within the REHAU Group since 2006.



Born: 1975 in Thun, Switzerland

Professional Career:

since 2017
RAUMEDIC AG, Helmbrechts
Chief Financial Officer (CFO)
Member of Executive Board

2015 – 2017
Anklam Extrakt GmbH, Anklam, Germany
Managing Director of Finance and Administration

2010 – 2014
REHAU S.A. de C.V., Celaya, Mexico
CFO/Administration Manager

2006 – 2010
REHAU GmbH, Muri, Switzerland
Senior Internal Auditor, Deputy Head of Department

1999 – 2006
Fenaco Genossenschaft, Berne, Switzerland

1994 – 1999 
Tax Administration of the Canton of Berne, Switzerland
Administrative Officer, Finance Department 


2004 – 2007
Master’s Degree, Auditing and Accounting
Swiss Chamber of Certified Accountants, Zurich, Switzerland

1999 – 2003
Bachelor’s Degree, Business Administration and Management
College of Higher Education HSW, Fribourg, Switzerland

Martin Schenkel - Director Operations

Martin Schenkel started his RAUMEDIC career in 2004 as a Production Manager at the Feuchtwangen plant. In 2009 his scope of responsibility expanded to include plant management in Zwönitz and Helmbrechts. In August 2009 he was appointed Director of Operations.



Born: 1966 in Feuchtwangen 

Professional Career:

since August 2009
RAUMEDIC AG, Helmbrechts
Director Operations
Member of Executive Board

April 2009 – August 2009
RAUMEDIC AG, Helmbrechts
Plant Manager for Zwönitz, Feuchtwangen and Helmbrechts

2004 – 2009
RAUMEDIC AG, Helmbrechts
Production Manager – Plant Feuchtwangen

1996 – 2004
REHAU AG + Co., Feuchtwangen
Additional Management – Extrusion Medical Tubing

1990 – 1996
REHAU AG + Co., Feuchtwangen
Management – Department Medical Tubing

1988 – 1990
REHAU AG + Co., Feuchtwangen
Project assignments in toolroom, profiling tools for extrusion

1985 – 1987
REHAU AG + Co., Feuchtwangen
Toolmaker (profiling tool for extrusion) and machine fitter


1987 – 1988
Diploma Technical Engineering, Rehau

1981 – 1985
REHAU AG + Co., Feuchtwangen
Apprenticeship professional tool maker

Dr. Ralf Ziembinski - Director Business Unit Tubing

Dr. Ralf Ziembinski has been part of the RAUMEDIC AG team since 2004. In 2012, he became Director of the Tubing business unit.



Born: 1962 in Aachen

Professional Career:

since 2012
RAUMEDIC AG, Helmbrechts
Director Business Unit Extrusion / Tubing
Member of the Executive Board

2009 – 2012
RAUMEDIC AG, Helmbrechts
Business Unit Extrusion / Tubing
Head of Business Team Application Technology

2004 – 2009
RAUMEDIC AG, Helmbrechts
Competence Center Tubing
Head of Research & Development

1993 – 2004 
REHAU AG & CO, Rehau
Medical Application Technology Team Leader
(later Departmental Manager)


1991 – 1993
Postdoc at the University of Toronto Chemistry Department, Research Group for Inorganic Polymers

1988 – 1991
Promotion at the Department of Inorganic Chemistry, RWTH Aachen, Dr. rer. nat.

1983 – 1988
Degree in Chemistry, RWTH Aachen

1972 – 1981
Couven-Gymnasium, Aachen, A-level

Thomas Knechtel - Director Business Unit Systems

Thomas Knechtel started to work for the RAUMEDIC AG in 2009. Since 2016 he has been holding the position of Director of the Systems business unit.



Born: 1975 in Wuppertal

Professional Career:

since 2016
RAUMEDIC AG, Helmbrechts
Director Business Unit Systems
Member of the Executive Board

2015 – 2016
RAUMEDIC AG, Helmbrechts
Director Business Unit Assembly / Catheters
Member of the Executive Committee

2010 – 2015
RAUMEDIC AG, Helmbrechts
Head of Business Team Marketing and Sales Assembly / Catheters

2009 – 2010
RAUMEDIC AG, Helmbrechts
Project Manager

2006 – 2009
REHAU AG + Co., Rehau
Teamleader Staff Supervisory Board

2001 – 2005 
University of Paderborn
Research fellow, Chair for Business Information Systems, Decision Support and Operations Research


1995 – 2001
University of Paderborn
Degree course in Business Administration and Engineering