The law firm.
We have been advising and supporting our clients in the heart of Basel since 1991.
The guiding principle.
Just plain talk – successful legal advice means more than just the application of the law alone, particularly when called upon to deliver intelligent, creative solutions for highly complex and demanding projects.
The values.
Independence, creativity, cooperation, openness, determination, commitment, competence, efficiency, experience and attentiveness – these are the 10 maxims of the DUFOUR model.
Firm history.
Founded in 1991
DUFOUR blickt auf eine langjährige Firmengeschichte zurück und damit erwartungsvoll auch in die Zukunft.
2025
Anniversary: DUFOUR celebrates 20 years at Dufourstrasse
On 4 September 2025, DUFOUR Advokatur celebrate its 20th anniversary milestone at the Basel Museum of Ancient Art with clients, colleagues, friends and family. Our sincere thanks to everyone who has accompanied us on this journey – and who will continue to do so in the future. Here’s to the next 20 years!
2025
Sebastian Rieger joins the partnership.
Sebastian Rieger joined the DUFOUR team in 2016. He has specialized in the area of foundations and NPOs since 2018. With his verve, expertise and strong commitment to solution-oriented innovation, Sebastian is an ideal addition to the DUFOUR Advokatur partnership.
2017
Yolanda Müller supports DUFOUR as an independent partner in cooperation.
Yolanda Müller, a founding partner of DUFOUR Advokatur, has been working with DUFOUR Advokatur as an independent partner since this year. She heads the area of occupational benefits and is also active in estate planning and inheritance law.
2005
Monika Naef joins the partnership.
Monika Naef strengthens the DUFOUR partnership. She was previously Head of Section Law at an international chemical company, senior legal counsel to Human Resources and Pension Funds of an international pharmaceutical and chemicals company, and formerly legal counsel to the Pharmaceutical and Industrial Divisions. With her extensive expertise in commercial law and M&A, Monika is a wonderful addition to our commercial law firm. Her creative, solution-oriented and highly competent approach are note-worthy.
2005
The general partnership DUFOUR Advokatur is founded.
DUFOUR Advokatur opens its offices on Dufourstrasse in Basel.
1996
Yolanda Müller becomes a partner.
Yolanda Müller joins the partnership of the predecessor firm. From 1991 to 1996, she worked as a legal and tax consultant for a leading international auditing firm.
1993
Dr. Christoph Degen joins the partnership.
Dr. Christoph Degen joins the partnership of DUFOUR Advokatur’s predecessor. His main area of focus is foundation and non-profit law. He is already managing director at proFonds, the umbrella organization for non-profit foundations in Switzerland.
1991
DUFOUR predecessor firm is founded in Basel.
DUFOUR predecessor firm is founded in Basel, establishing its offices at Beim Goldenen Löwen in Basel.
Just plain talk.
DUFOUR was founded in 1991 and now ranks among Switzerland’s prestigious and successful law firms.
From the very beginning, our goal has been to offer our clients more than legal advice alone. To this end, we have developed our own distinctive advisory culture, characterized by unconventional ideas, a strong team spirit and an understanding of competence that extends beyond legal expertise to include the social and emotional aspects of a mandate.
