Testimonials
Our clients include SMEs and departments of large companies. We also have extensive experience with NPOs and in the public sector. Discretion goes without saying. All the more we are delighted to receive testimonials.

City of Zurich, Social Institutions and Organisations
Andrea Hummler has accompanied us in the management team on the path of team building after personnel changes. Her ability to work precisely and clearly, with empathy and in a results-orientated manner, and to focus on the essentials, has made a lasting impression on us. With her support, we were able to make valuable progress and strengthen our impact both internally and externally. This is also due to the fact that Andreas personality is compatible with different attitudes and characters.
Tabitha Gassner, Director Social Institutions and Organisations
WIR Bank Genossenschaft, Basel
Focused and absolutely goal-oriented - structured and also uncomfortably persistent, these are the highly valued characteristics of Andrea Hummler. She has achieved demonstrable success and added value in management and team-building programmes across all hierarchies. Her individual coaching for management and executive board members is also highly valued and in demand.
Bruno Stiegeler, Chairman of the Executive Board
KLASA Holding AG
We carried out our strategy development with Andreas support. From the first day of planning through to implementation and advice during realisation, Andrea accompanied us with professionalism, commitment and a human touch. Despite the complex initial situation of the company structure, she always maintained an overview and kept us on track in the workshops. Andrea leads the process clearly and communicates transparently and professionally. I look forward to further workshops and working with her.
Sabrina De La Vigne, Managing Director
City of Lucerne, Elementary School
Andrea Hummler impresses with her professional and goal-orientated approach as well as her empathetic manner. She is always well prepared, asks the right questions and gets to the heart of complex issues. With her clear and structured approach to coaching our organisation, she provides valuable impetus for the further development of the Lucerne primary school.
David Schuler, Principal
HSLU University of Applied Sciences, Lucerne
I know Andrea Hummler as a leadership lecturer on the Executive MBA Lucerne. Together with Herbert Husi, she has skilfully guided EMBA participants over the years and used innovative and varied didactic settings to give them the opportunity to reflect on their understanding of leadership and realign their leadership relationships. I appreciate her clear attitude, her ability to moderate even challenging situations appropriately and the uncomplicated and pragmatic cooperation with her.
Prof. Dr. Erik Nagel, Programme Director Executive MBA HSLU
Children's Hospital Zurich, Children's Rehab Switzerland
Andrea Hummler skilfully guided our management retreat in a friendly and goal-oriented manner. Thanks to her analytical eye and critical questions, we were able to refine our initially very broad topic and return home with concrete results. The day was perfectly facilitated by Andrea in collaboration with Julia Lanz and designed with a variety of methods.
Claudia Westhues, Headmistress and Member of the Clinic Management
BMS Building Materials Suisse
Andrea Hummler from Mint Consulting and Celestina Rogers from kuhlcom introduced our managers to the topics of CHANGE and LEADERSHIP with great sensitivity. The training sessions, which took place over several months in a modular format, were very practice-oriented and have had an impact. We are seeing concrete changes in our appearance and leadership performance. Employees react in a more differentiated and mature way in difficult moments. The programme, led by Andrea Hummler and Celestina Rodgers, has become an important pillar of our leadership and cultural development and enjoys an excellent reputation within our company. We are delighted to have these two experienced trainers on board and thank them for the enriching moments in our day-to-day management.
Alain Bayer, Director Human Resources
ZGSZ Centre for Hearing and Speech
Andrea Hummler has supported us in various strategy meetings. We felt that we were in good hands because Andrea always finds the right approach and ensures that the work in the committee continues in a targeted manner. She knows how to summarise even complex topics clearly and concisely and is a virtuoso in using a variety of moderation methods. Andrea is not only very reliable but also knows how to engage with different people and create an atmosphere of trust.
Daniel Artmann, Director
University of Zurich, Institute of Forensic Medicine, Traffic Medicine
Andrea and I carried out several projects together. The collaboration was a highlight. Andrea is characterised by her clarity. With her friendly, humorous and determined manner, she succeeded in getting everyone involved in the work and developing practice-orientated results.
Dr. med. Munira Haag, Head of Traffic Medicine and Clinical Forensics
Canton of Zurich, Office for Youth and Career Counselling
Andreas clear approach helped us to untangle complex and confusing situations within our organisation as well as to find constructive solutions.
Christian Stauffacher, Managing Director, Southern District
Vocational Training Association of the Insurance Industry VBV
Reorganisations of associations are delicate, since a common denominator for the heterogeneous interests of all members must be found. Andrea Hummlers consultancy helped us considerably to achieve a clearly structured as well as shared decision basis within complex circumstances. This enabled us to proceed transparently and efficiently.
Joe Bättig, President VBV
Swiss Insurance Association SVV
Relief, methodological expertise, neutral view and experience from similar situations are basics that not only Mint Consulting can offer. What sets Andrea apart from the crowd is her focus on the essentials, her avoidance of unnecessary frills and her ability to focus on the client's needs. All this in a goal-orientated and efficient as well as humanly pleasant and refreshing manner.
Thomas Gosteli, Member of the Executive Board
University of Zurich, Institute of Medical Virology
In hectic times Andrea Hummler relieved our workload and enabled us to advance significantly. In addition to a very turbulent daily business we faced several project deadlines. We needed new organisational structures and worked with unclear processes. The results we developed together lead to a transparent decision basis and enabled us to get critical approvals. Besides, the co-operation was straightforward and fun despite the hectic circumstances!
Prof. Dr. Alexandra Trkola, Institute management
University of Zurich, Institute for Empirical Economic Research
Andrea Hummler has the ability to quickly and thoroughly understand the technical and social dimensions of complex issues. Together we have succeeded in developping sustainable solutions that have been successfully implemented at our institute.
Prof. Dr. Daniel Schunk, Chair holder
University of Zurich, Institute of Forensic Medicine
I worked on a couple of projects together with Andrea Hummler and she convinced me from a professional and personal perspective. She knows how to set realistic project objectives and to reach them according to plan. The projects we worked on together provided important fundamentals for timely critical decisions.
Dr. med. Morten Keller, Head of Forensic Medicine
Eurocentres, Language Learning Worldwide
The collaboration with Andrea Hummler was always characterised by a good preparation, a comprehensible methodology, a clearly structured programme and independent moderation. Accordingly, the results achieved were successfully implemented in the company and on the market.
Michael C. Gerber, CEO