Definiens Management Team
 Thomas P. Heydler
Chief Executive Officer
Chairman of the Executive Board
Thomas Heydler, Chief Executive Officer of Definiens AG, joined Definiens in 2004. He brings more than 20 years of entrepreneurial expertise and in-depth knowledge of global software business to Definiens.
Mr. Heydler was President and CEO at Barcelona Design Inc. based in San Jose, USA. Before joining Barcelona, Mr. Heydler served as President and CEO for InterPro Business Solutions, Inc., USA.
He was Vice President and Executive Officer at Documentum Inc., a leading software and solutions provider with specific focus on the pharmaceutical and life sciences industry. He built and drove Documentum’s European operations and assumed worldwide responsibility for Marketing and Documentum’s Application Business subsequently. Prior to this engagement, he served as Vice President and General Manager Europe for Cadence Design Systems and held senior leadership positions at Siemens AG.
Mr. Heydler holds a Diplom-Ingenieur degree in Electric Engineering and Computer Science from the Technical University in Munich.
 Peter Rau
Chief Financial Officer
Member of the Executive Board
Peter Rau, Chief Financial Officer, joined the Company in 2006. He brings a wealth of international corporate finance and controlling experience as well as an in-depth knowledge of private and public capital markets both in Europe and the U.S. to Definiens.
Prior to his assignment with Definiens, Mr. Rau held senior finance executive positions at Philip Morris and Porsche in the consumer and automotive industries. As CFO and Executive Board member he prepared and launched the IPO of euromicron AG, and managed the financial turnaround and public tender offer sales process of IXOS Software AG.
In his last position as Executive Board Member he managed the sale of a private equity owned corporation to another financial investor.
Mr. Rau holds a Bachelors Degree in Industrial Engineering earned at University of Applied Sciences in Munich as well as an American Masters Degree in Business Administration of Long Island University, New York.
 Dr. Wolfgang Rencken
Executive Vice President Technology and Products
Member of the Executive Board
Dr. Wolfgang Rencken joined the company in 2006 bringing more than 15 years’ industry experience to Definiens. Dr. Rencken is responsible for all research and development activities, including platform and solutions development.
Prior to joining Definiens, Dr. Rencken was Vice President Engineering of the Siemens Medical Solutions Software Components and Workstations Business Unit, running a software platform development of more than 400 developers with sites in USA, Germany, Hungary, Slovakia and India.
Besides holding further management positions in engineering at Siemens Medical Solutions, he was also a research engineer at Siemens Corporate Research and Development, specializing in service robotics, data fusion and image processing.
Dr. Rencken holds a bachelor degree in Electronic Engineering of the University of Stellenbosch, South Africa and a D. Phil in Engineering Science of the University of Oxford, England.
 Prof. Dr. Gerd Binnig
Founder and Head of Research
In 1986 Prof. Binnig, along with his colleague Prof. Heinrich Rohrer, was awarded the Nobel Prize in Physics for his work in scanning tunneling microscopy. Prof. Binnig and Prof. Rohrer were recognized for developing the powerful microscopy technique, which can form an image of individual atoms on a metal or semiconductor surface by scanning the tip of a needle over the surface at a height of only a few atomic diameters.
Born in Frankfurt, Germany, Prof. Binnig studied at the J.W. Goethe University in Frankfurt, where he received his bachelor's degree in 1973 and his doctorate degree in 1978.
That year he joined a physics research group at IBM's Zurich Research Laboratory. Prof. Binnig was assigned to IBM's Almaden Research Center in San Jose, Calif. from 1985 to 1986, and was a visiting professor at Stanford University from 1987 to 1988.
 David Fullerton
Vice President Professional Services
Mr. Fullerton brings more than 20 years of professional services experience to Definiens, having led worldwide professional services, support, and training for a number of enterprise technology companies. While with Documentum, Mr. Fullerton headed the professional services organization, creating worldwide service centers for consulting, training, and technical support.
He also served in a variety of marketing and services roles with Hewlett-Packard, including a general manager role where he planned and managed an award-winning customer response center.
Mr. Fullerton is a graduate of Eastern Michigan University where he holds a degree in Applied Mathematics.He also studied Electrical Engineering at the University of Michigan.
 Rene Hermes
Vice President Marketing
Rene Hermes joined the company in 2006 bringing more than 15 years international marketing and business development experience to Definiens. Mr. Hermes is responsible for all aspects of marketing including strategy, corporate, industry, channel, and field marketing.
Prior to joining Definiens, Mr. Hermes was senior marketing executive at Genesys Telecom Laboratories covering Europe, the Middle East and Africa. Previously, Mr. Hermes held senior marketing management positions at Progress Software in Europe as well as in the USA.
His last position at Progress Software was head of worldwide product and channel marketing. Mr. Hermes is a graduate of the Hogere Economische School in The Hague and holds a bachelors degree in Management Information Systems and Marketing.
 Frank P. Klein
Vice President Medical Imaging
For more than five years Mr. Klein worked for GE Healthcare in different international roles. As International Marketing Director he implemented GE’s Early Health Model in Cardiology (a $2 billion global business) in Paris, France and at GE Medical Systems Information Technologies in Freiburg, Germany he launched the company’s leading cardiovascular IT solution.
In the context of GE's sponsorship for the Olympic Games, he supported clinical studies with olympic athletes and established a close relationship with the German Olympic Team by supporting the team with diagnostic equipment. Prior to joining GE, Mr. Klein worked for six years as General Manager, International Sales for Schwarzer (a partner of Philips Medical Systems) in the Cardiovascular area.
Frank Klein holds a degree in Electrical and Biomedical Engineering from University Siegen and TU Graz and a post-graduate degree in Marketing from MA Hamburg. At GE, he received his 6Sigma certification.
 Gregg Westerbeck
Vice President Sales and General Manager Americas
Gregg Westerbeck became a member of Definiens’ management team in January 2008. He is responsible for its business in North America. Mr. Westerbeck brings more than 20 years of enterprise software experience, strong leadership credentials, and a proven track record of success to his role as VP Sales and General Manager of the Americas.
Prior to Definiens, Mr. Westerbeck has held senior management positions at MonoSphere, a leading supplier of storage capacity management software and Movaris, a leading supplier of enterprise compliance software.
Mr. Westerbeck has also held executive management positions at Manugistics and Cadence Design Systems. Mr. Westerbeck holds a Bachelor of Science degree in Industrial Management and Industrial Engineering from Purdue University.
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