Implenia Executive Committee
Members of the Implenia Executive Committee
Since 1 April 2025, the IEC has consisted of seven members instead of eight because the number of Divisions has been reduced to three. On 1 April 2025, Jens Vollmar replaced André Wyss as CEO. The table below shows the composition of the IEC as of 31 December 2025:
| Name | Nationality | Position | Member of IEC since |
|---|---|---|---|
| Jens Vollmar | Germany | CEO | 2019 |
| Stefan Baumgärtner | Switzerland | CFO | 2022 |
| Adrian Wyss | Switzerland | Head Division Buildings | 2019 |
| Anita Eckardt | Denmark | Head Division Service Solutions | 2019 |
| Erwin Scherer | Austria | Head Division Civil Engineering | 2024 |
| Claudia Bidwell | Switzerland and Germany | Chief Human Resources Officer | 2020 |
| German Grüniger | Switzerland | General Counsel | 2019 |
Educatution, Activities and Vested Interests
The summary on the following pages contains basic information about the career paths and education of the individual IEC- members. It also discloses the mandates held by each member outside the Group as well as any further significant activities and permanent positions in significant interest groups.
Number of Permissible Activities
According to Art. 22e of the Articles of Association, each member of the IEC may hold no more than nine mandates as a director or officer of legal entities outside the Implenia Group (no more than four of which may be held in exchange-listed companies), which are to be registered in the Swiss Commercial Register or a similar foreign register, providing that they are approved on a case-by-case basis by the NCC. If mandates are held in different legal entities of one and the same corporate group or are held on behalf of a corporate group or a legal entity, these will be counted in their entirety as one mandate in each case. It is permissible to exceed the foregoing limits for short periods. The Articles of Association with the exact wording of the above-cited provision can be viewed on Implenia's website.
https://implenia.com/goto/ corporategovernance/2025/en/Articles-of-Association-20240326.pdf
Dr. Jens Vollmar
Chief Executive Officer
Born 1984
German citizen
Member of the Implenia Executive Committee
Education
- Degree in business economics from the University of St. Gallen (Dr. oec. HSG)
Professional Experience
SINCE 2025 CEO Implenia Group
2019–2025 Head Division Buildings and Country President Switzerland, Implenia
2015–2018 Head Division Buildings, Implenia
2014–2015 Head Business Development Buildings, Implenia
2014–2015 Head CEO Support, Implenia
2011-2013 Senior Consultant at the Institute for Finance, Financial Law, and Law & Economics, University of St. Gallen (HSG)
Additional functions and offices
- Lecturer in Construction and Real Estate Management, University of St. Gallen (HSG)
- Vice-Chairman of the Executive Board of Entwicklung Schweiz
- Member of the Executive Board of Bauenschweiz
Stefan Baumgärtner
Chief Financial Officer
Born 1959
Swiss citizen
Member of the Implenia Executive Committee
Education
- Executive MBA, Postgraduate degree in Controlling, Eastern Switzerland University of Applied Sciences
- Industrial Engineer, University of Liechtenstein
Professional Experience
SINCE 2022 CFO Implenia Group
2017–2022 CFO Ems Group
2014–2017 Division CFO of RUAG Space
2008–2014 Vice President Finance, Sulzer, Houston, Texas
Adrian Wyss
Head Division Buildings
Born 1975
Swiss citizen
Member of the Implenia Executive Committee
Education
Architect, University of Applied Sciences
Postgraduate degree in Business Administration, Bern University of Applied Sciences
Professional Experience
SINCE 2025 Head Division Buildings, Implenia
2019–2025 Head Division Real Estate, Implenia
2015–2019 Head Division Modernisation & Development, Implenia
2013–2015 Head Modernisation, Implenia
2006–2013 Various functions within Implenia
2000–2006 Architect at Pfister Schiess Tropeano Architekten, Zurich
Anita Eckardt
Head Division Service Solutions
Born 1959
Danish citizen
Member of the Implenia Executive Committee
Education
- Master of International Business, Munich Business School
- Executive Coach, Coaching Institute Copenhagen
Professional Experience
SINCE 2025 Head Division Service Solutions, Implenia
2019–2025 Head Division Specialties, Implenia
2019–2019 CEO of Habitects AG
2017–2018 Chief Operating Officer, CRH Swiss Distribution
2008–2016 CMO Saint-Gobain Distribution Denmark & Sales Director Vetrotech, Saint-Gobain International
2005–2008 Global Key Account and Marketing Manager, Bang & Olufsen
2001–2005 Global Brand Manager, Grundfos
Additional memberships on boards of directors
- Dansk Landbrugs Grovvareselskab a.m.b.a. (Member)
- CKW AG (Member)
Erwin Scherer
Head Division Civil Engineering
Born 1966
Austrian citizen
Member of the Implenia Executive Committee
Education
- Master of Science in Subsurface Engineering, Technical University of Leoben
Professional Experience
SINCE 2024 Head Division Civil Engineering, Implenia
2019–2024 Global Head Tunnelling, Implenia
2002–2019 Head of Tunnelling Division, Ed. Züblin AG
1999–2001 Senior Project Manager, Walter Bau AG
1995–1999 Construction Manager, Stuag / Strabag AG, Vienna
Additional functions and offices
- Executive board member of European International Contractors (EIC)
- Executive board member of Austrian Construction Technology Association
Claudia Bidwell
Chief Human Resources Officer
Born 1966
Swiss and German citizen
Member of the Implenia Executive Committee
Education
- Bachelor of Science in Economics, University of London (UCL)
- British Psychological Society, certified in Work and Organizational Assessment
- Various executive education modules in Leadership Development at Harvard Business School
Professional Experience
SINCE 2020 Chief Human Resources Officer, Implenia Group
2019–2020 Global Head of People and Organisation Development and Head of HR Switzerland, Implenia
2017–2019 Global Head of Talent Development & Organisational Capability, Takeda Pharmaceuticals
2004–2017 Various managerial positions at Novartis
Additional memberships on boards of directors
- RUAG MRO Holding AG (Member)
Dr. German Grüniger
General Counsel
Born 1969
Swiss citizen
Member of the Implenia Executive Committee
Education
- Lic. iur., University of Freiburg
- Dr. iur., University of Basel
- LL. M., New York University
- Attorney-at-law
- Stanford Executive Program (2019)
Professional Experience
SINCE 2014 General Counsel and Chief Compliance Officer Implenia Group
1996–2014 Attorney-at-law and Partner at Schumacher Baur Hürlimann, Zurich and Baden (today Baur Hürlimann AG)
1995–1996 Law clerk, district court of Zurzach
Additional memberships on boards of directors
- MediData AG (Chairman)
- Bürgenstock Hotels AG (Member)
- Bürgenstock Bahn AG (Member)
- Bergbahnen Beckenried-Emmetten AG (Vice-Chairman)