
Who’s in charge of operations
Management
Experienced figures from our team of around 9,000 employees manage Implenia as Members of the Implenia Executive Committee.

Personal details
Jens Vollmar
Chief Executive Officer
Personal data
- Born 1984
- German citizen
Education
- Degree in business economics from the University of St. Gallen (Dr. oec. HSG)
Professional Experience
- Since April 2025
Chief Executive Officer - 2019—2025
Head Division Buildings and Country President Switzerland - 2015—2018
Business Unit Head Buildings, Implenia - 2014—2015
Head Business Development Buildings, Implenia - 2013—2014
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 president of the association «Entwicklung Schweiz»
- Member of the association «Bauenschweiz»

Personal details
Adrian Wyss
Head Division Real Estate
Personal data
- Born 1975
- Swiss citizen
Education
- Architect, University of Applied Sciences
- Postgraduate degree in Business Administration, Bern\ University of Applied Sciences
Professional Experience
- Since 2019
Head Division Real Estate - 2015—2019
Business Unit Head Modernization & Development, Implenia - 2013—2015
Head Modernization, Implenia - 2006—2013
Various functions within Implenia - 2000—2006
Architect at Pfister Schiess Tropeano Architekten, Zurich

Personal details
Erwin Scherer
Head Division Civil Engineering
Personal data
- Born in 1966
- Austrian citizen
Education
- Master of Science in Subsurface Engineering, Montan University Leoben
Professional career
- since September 2024
Head Division Civil Engineering - 2019 – 2024
Global Head Tunneling at Implenia - 2002 – 2019
Head of the Tunneling Division at Ed. Züblin AG - 1999 – 2001
Senior Project Manager at Walter Bau AG - 1995 – 1999
Construction Manager at Stuag / Strabag AG, Vienna
Additional functions and offices
- Member of the Board of the association European International Contractors (EIC)
- Member of the Board of the association Austrian Society for Construction Technology (ÖBV)

Personal details
Anita Eckardt
Head Division Specialties
Personal data
- Born 1973
- Danish citizen
Education
- Master of International Business, Munich Business School
- Executive Coach, Coaching Institute Copenhagen
Professional Experience
- Since 2019
Head Division Specialties - 2019—2019
CEO of Habitects AG - 2017—2018
Chief Operating Officer at CRH Swiss Distribution - 2008—2016
CMO Saint-Gobain Distribution Denmark & Sales Director Vetrotech Saint-Gobain International - 2005—2008
Global Key Account & Marketing Manager at Bang & Olufsen - 2001—2005
Global Brand Manager at Grundfos
Memberships on Boards of Directors
- Dansk Landbrugs Grovvareselskab a.m.b.a. (Member)
- CKW AG (Member)

Personal details
Stefan Baumgärtner
Chief Financial Officer
Personal data
- Born 1971
- Swiss citizen
Education
- Executive MBA, Dipl. Controller NDS HF, FHS Ostschweiz
- 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 in Houston, Texas

Personal details
Claudia Bidwell
Chief Human Resources Officer
Personal data
- Born 1966
- Swiss and German citizen
Education
- Bachelor of Science in Economics from London University (UCL)
- British Psychological Society, certified in “Work & Organizational Assessment”
- Completed various Executive Education Modules in Leadership Development at Harvard Business School
Professional Experience
- Since 2020
Human Resources Officer Implenia Group - 2019 - 2020
Global Head of People and Organization Development and Head of HR in Switzerland at Implenia - 2017 – 2019
Global Head of Talent Development & Organisational Capability at Takeda Pharmaceuticals - 2004 – 2017
Various management positions at Novartis

Personal details
Dr. German Grüniger
General Counsel
Personal data
- Born 1969
- Swiss citizen
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
Associate and partner at the law firm Schumacher Baur Hürlimann, Zurich and Baden (today Baur Hürlimann AG) - 1995—1996
Law clerk, distict court of Zurzach
Memberships on Boards of Directors
- MediData AG (Chairman)
- Bürgenstock Hotels AG (Member)
- Bürgenstock Bahn AG (Member)
- Bergbahnen Beckenried-Emmetten AG (Vice-Chair)
Additional functions and offices
- Board of Trustees of the Felsenweg am Bürgenstock Foundation (Vice-Chairman)