Corporate Management

Drees & Sommer Switzerland AG

Rainer Preisshofen

Managing Director

Strategic consulting
Property Companies
Industry & Logistics

rainer.preisshofen(at)dreso.com 

Rico Ineichen

Managing Director

Consulting
Workplace & Change Management
French-speaking Switzerland

rico.ineichen(at)dreso.com 

Julian Kommer

Managing Director

General planning
Overall management
IPD / Lean

julian.kommer(at)dreso.com 

Patrizia Dünner

Head of Construction Management Zurich

Competitions
Cost management
Tendering and realisation

patrizia.duenner(at)dreso.com 

Udo Klingels

Head of Project Management Zurich

Client representation
Quality Management PQM
Project Management Office PMO

udo.klingels(at)dreso.com

Schenk_Florian

Florian Schrenk

Head of Project Management Basel

Client representation
Healthcare
Public sector

florian.schrenk(at)dreso.com 

Thomas Mohler

Head of Construction Management Basel

Refurbishment of existing properties
Life Science
Construction logistics

thomas.mohler(at)dreso.com 

Jennifer Dali

Head of Real Estate Consulting

Organisational Consulting
Facility Management
Portfolio consulting

jennifer.dali(at)dreso.com

Ivo Angehrn

Head of Sustainability & Digitalisation

ESG / Certifications
Circular economy
Data management

ivo.angehrn(at)dreso.com 

Dr. Jan Hendrik Lukowski

Head Development Services

Project Development
Feasibility studies / TDD
Hospitality

jan.lukowski(at)dreso.com 

Bianca Wander

Head of Finance & Controlling

Business Planning
Reporting
Project controlling

bianca.wander(at)dreso.com 

Franziska Roth

Head of Human Resources

Personnel strategy and development
Employer branding
Recruitment

franziska.roth(at)dreso.com 

As a holding company, Drees & Sommer is the owner of the independent operational units of the Drees & Sommer Group. The operational units are either regional companies or Expert Teams with wide-ranging autonomy. The entire Group uses the network to add value for clients.

The main shareholders in Drees & Sommer SE are the active and former Partners, each of whom has a minimum shareholding. All Partners have joined together to form a consortium whose constitution safeguards the long-term continuity of the company’s development. As a result, the company is independent of third parties.

Currently, Drees & Sommer is managed by the Executive Board in close cooperation with the operational Partners and the Managing Directors. The Partners have committed to maintaining the company’s successful strategy and corporate culture.