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.

Dr Jens Vollmar

Chief Executive Officer & Head Division Service Solutions

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Personal details

Jens Vollmar
Chief Executive Officer & Head Division Service Solutions

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»

 

Adrian Wyss

Head Division Buildings

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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

 

Erwin Scherer

Head Division Civil Engineering

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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)

Stefan Baumgärtner

Chief Financial Officer 

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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

Petra Feigl-Fässler

Chief Human Resources Officer from 1 September 2026

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Dr German Grüniger

General Counsel

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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)

 

About Implenia

Guiding principle

Guiding principle

As a multinational leading construction and real estate service provider, Implenia has set itself a clear course, and its employees are committed as a team to the company’s values.

Corporate Governance

Corporate Governance

Implenia is committed to a form of corporate governance that impresses through transparency and a sense of responsibility. Good corporate governance is indispensable for Implenia.

History of Implenia

History of Implenia

Created in 2006 from the merger of Zschokke and Batigroup, Implenia can look back on around 150 years of construction tradition.

A career with Implenia

A career with Implenia

At Implenia, you will write history together with us. Building on a foundation of tradition and many years of experience, you will develop a vision of tomorrow's world with us.

Organisation

Organisation

Our strategy comprises activities in three businesses that complement each other and benefit from synergies between geographical markets.

Health & Safety

Health & Safety

We offer a safe working environment. Occupational safety is a central management task at Implenia and the responsibility of each and every individual.

Purchasing

Purchasing

Procurement is responsible for all of the group's purchasing and is present both locally in the various countries and on large construction sites, as well as being networked throughout Europe.

Engagement

Engagement

Implenia is Switzerland's leading construction and real estate services provider, and as a company it also contributes to sustainable development outside of its projects.