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At Borghi Adler Tönz we deal with rights and obligations on a daily basis to provide our clients with legal advice and represent them in court. We have specialised expertise in the fields of construction and real estate, energy and environmental law, life science, tenancy law as well as in other general fields of law. We work as a team and use our complementary skills and experience to achieve your goals.

Our clients include large, small and middle-sized companies as well as public entities and private clients from Switzerland and abroad. We advise our clients in English, German, French, Italian and Spanish. Our offices are located in the heart of Zurich's financial district and in Lausanne.


    We are proud to have been awarded the third year in a row the title "Top Law Firm" again in 2020.

  • It is the third time that the Swiss business journal BILANZ has awarded Switzerland’s Top Law Firms. The jury consisted of 7'200 lawyers, 430 in-house counsels, including the general counsels of Switzerland’s 500 largest companies.

    Press article: Top Law Firms 2020
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    We are honored to receive the award «Environmental Law Firm of the Year in Switzerland – 2020» from Global Law Experts.

  • Since 2010 the GLE Annual Awards are given for exceptional performance and work in various legal areas.

    Award article: Global Law Experts Annual Awards 2020

BAT has renewed the website and now presents itself on a modern and clear homepage.

June 2018

Borghi Adler Tönz AG Attorneys at Law receives the title Top Law Firm 2018 from BILANZ & LE TEMPS.

April 2018

New publication by Stefan Tönz and Denis Oliver Adler: “Reservation Agreements for Condominiums”, Newsletter Construction and Real Estate Law [WEKA], 04 April 2018, p. 5 ff.

April 2018

We are pleased to welcome Mrs. Daniella Maron and Mr. Kevin Baggenstos as legal team members in our firm.

March 2018

+41 44 533 55 00


Am Schanzengraben 23, 8002 Zürich

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