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Karl-Heinz Streibich
Chief Executive Officer (CEO)
Chairman of the Management Board

Karl-Heinz Streibich, born in 1952 (Nationality: German), in Rheinmünster, Baden-Württemberg, Germany, has been Chief Executive Officer of Software AG since October 2003 (under contract until 2018).

In this role he is also responsible for the following functions: Global Human Resources, Global Legal, Global Information Services (IT), Corporate Communications, Global Processes, Audits & Quality, Corporate Office and Environmental, Social and Governance topics. 

Throughout his career, Karl-Heinz Streibich held various management positions in Information and Communication Technology. Among others he was Head of Marketing Operations of ITT Europe in the UK, Member of the Board of debis Systemhaus (Daimler-Benz AG), as well as deputy Chairman of T-Systems (Deutsche Telekom) where he was responsible for the merger of debis Systemhaus IT activities with Deutsche Telekom. 

Karl-Heinz Streibich studied Communication Engineering in Offenburg and visited postgraduate courses at Stanford University, Harvard University.

He is the Chairman of the Supervisory Board (Aufsichtsrat) at Dürr AG, a member of the Supervisory Board (Aufsichtsrat) at Deutsche Telekom AG, Deutsche Messe AG and Wittenstein SE and holds several honorary positions including Member of the Presidency of the German IT Association BITKOM and Co-Chairman of the Platform “Digital administration and public IT“ within the framework of the German Chancellor’s IT summit. He is a co-founder of the German Software Cluster of Excellence.

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Arnd Zinnhardt
Chief Financial Officer (CFO)

Arnd Zinnhardt, born in 1962 (Nationality: German), has been a member of the Management Board of Software AG since May 2002 (under contract until 2021) and is responsible for the following departments: Finance, Controlling, Taxes, Treasury, Business Operations, Investor Relations, Mergers & Acquisitions and Global Purchasing.

Arnd Zinnhardt began his career in 1988 at Ernst & Young. In 1992, he successfully took his tax adviser examinations. He qualified as a certified public accountant (CPA) in 1994.

In 1998 Arnd Zinnhardt joined BDO AG in Frankfurt, where he became a partner. In 2001, he was appointed to Regional and Office Managing Partner Frankfurt at BDO AG.

Arnd Zinnhardt holds a degree in business administration from the University of Cologne.

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Dr. Wolfram Jost
Chief Technology Officer (CTO)

Dr. rer. nat. Wolfram Jost, born in 1962 (Nationality: German), has been a member of the Management Board of Software AG since August 2010 (under contract until 2023) and is responsible for Product Management, Product Marketing, Analyst Relations, CTO Community as well as Strategic Customer Programs. 

Dr. Wolfram Jost studied business economics, majoring in economic information science and marketing, at the University of the Saarland, from October 1983 to April 1988. After graduation in 1988 he worked for the Institute of Economic Information Science (IWi) at the University of the Saarland, where his duties included supervising and holding classes, heading projects in the field of Computer Integrated Manufacturing and organizing scientific congresses.

Dr. Wolfram Jost completed his doctoral thesis at the Law and Economics Faculty at the University of the Saarland in November 1992 on the topic of "Computer-based CIM Planning - Conception and Realization of a Tool for Analyzing and Planning CIM Systems".

In 1992 Dr. Wolfram Jost joined IDS Prof. Scheer GmbH, Saarbrücken. Here he was initially the head of ARIS Product Development before taking over as the head of ARIS Product Strategy in 1998.

In 1994 he was promoted to a senior management position, a post he held until he was appointed to the Executive Board of IDS Scheer AG in 2000. He remained a member of the IDS Scheer Board until the takeover of IDS Scheer AG by Software AG had been completed.

Dr. Wolfram Jost has written numerous articles for books and magazines and has also (co)authored more than ten specialist books.

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Eric Duffaut
Chief Customer Officer (CCO)

Eric Duffaut, born in 1962 (Nationality: French), has been a member of the Management Board of Software AG since October 2014 (under contract until 2019) and is responsible for Global Sales, Consulting Services and Marketing. 

Eric Duffaut has over 20 years of extensive international general management and sales leadership experience in the IT-industry, addressing a wide spectrum of customers from Fortune 500 enterprises to small and medium size businesses. 

Eric Duffaut began his career in 1987 at Unisys France as Account Executive. He then joined Oracle Corporation in 1990 where he held various sales and leadership positions in the EMEA region. 

In 2005, Eric joined SAP AG as Senior Vice President of SMEs (Small & Mid-size Enterprise) and Channels in EMEA. In 2006, he was promoted to Executive Vice President responsible for the entire P&L in multiple EMEA countries, while retaining his responsibility for the SME segment across the region. In 2008, Eric became Global Executive Vice President of SMEs and Channels. In 2011, he was appointed Corporate Officer and President of Global Ecosystem & Channels, responsible for SAP’s global SME go-to-market strategy and SAP's broad partner community. 

In addition to a business degree, Eric Duffaut holds a master degree in economics and finance, as well as a business degree. He also completed an Advanced Leadership program at Institut Européen d'Administration des Affaires (INSEAD).


Dr. Stefan Sigg
Chief Research & Development Officer Software AG

Dr. Stefan Sigg, born 1965 (Nationality: German), has been a member of the Management Board of Software AG since April 2017 (under contract until 2022) and is responsible for Research & Development.

Dr. Sigg earned both his Master's degree and PhD in Mathematics from the University of Bonn, Germany. He started his professional career in SAP's product development unit in 1995. After several management positions, he took over the development leadership for SAP Business Warehouse and, later, SAP HANA. Most recently, he headed up the entire product portfolio for SAP Analytics.

Additionally, Dr. Sigg has been teaching courses on analytics, big data technologies and applications at the Technical University of Darmstadt since 2014.

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