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The main office of the law firm Seidler & Kollegen in Weil am Rhein is located at the gates of Basel and in the heart of Europe. The branch office in Waldshut-Tiengen is also located in a direct border location 40 km from Zurich.
Founded in 2000, Seidler & Kollegen has established itself as a leading law firm in the region. Having started as a full-service law firm, we now concentrate on our core competencies. Because in an increasingly complex world, it is true that if you do everything, you do nothing really well. That is why we focus on what we are fully proficient in:

  • Business law, including commercial law, corporate law, international legal relations, intellectual property, competition and copyright law;
  • Family law and inheritance law, in the form of advice, in out-of-court negotiations and in court;
  • All civil law issues relating to real estate, in structuring, in court and also in compulsory and partition auction proceedings.

Our clients know what they can expect from us: Dedicated advice and representation with a sense of proportion and assertiveness, professionally and strategically at the highest level. We act nationwide and also provide cross-border advice. In Switzerland we have an established network. Internationally, we have access to legal and tax expertise in over 160 cities in 44 countries through our partner law firms at WIRAS. For our clients, we regularly take over the entire coordination with external partners and thus offer integrated cross-border advice and communication from a single source.


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