Meet the Altenburger Professionals

Since 1978, we have continuously built our authority and reputation as an international business law practice. Growing from a small tax law boutique to a full service commercial law firm has been quite an adventure. We look forward to the years to come!

Client Endorsements and Industry Recognition

Maintaining our clients' continued trust by delivering measurable results is what is most important to us.

Yet, we are of course also pleased when the quality of our service is recognized publicly. Here is some of the recognition we have gratefully received from clients and peers in recent years.

Kaspar Adank, Founder and CEO of Soobr

"Thierry Thormann and Ralph Imoberdorf have the economic understanding and entrepreneurial mindset to ensure a sound legal structuring of a start-up within the framework of an optimal benefit-cost ratio. With their support, we have been able to close two rounds of financing cost-effectively and on advantageous terms."

Kaspar Adank, Founder and CEO of Soobr
Martin Keller/CFO Schulthess

"Altenburger Attorneys at law actively supported us in the acquisition of Chemie AG with the legal due diligence, the share purchase agreement and the shareholders' agreement. The very professional preparation of all documents as well as the advice and support during the actual acquisition process contributed significantly to this successful transaction. We have come to appreciate Ralph Imoberdorf with his helpful and competent manner as our contact at Altenburger"

Martin Keller/CFO Schulthess

Our firm and our lawyers regularly rank in independent directories. A selection of these achievements can be found below.

A petrol coloured bullet point on the website of commercial Swiss law firm Altenburger legal + tax with offices in Zurich, Geneva and Lugano.Click here to see more info on this section on the website of commercial Swiss law firm Altenburger legal + tax with offices in Zurich, Geneva and Lugano.
Who’s Who Legal 2024
A petrol coloured bullet point on the website of commercial Swiss law firm Altenburger legal + tax with offices in Zurich, Geneva and Lugano.Click here to see more info on this section on the website of commercial Swiss law firm Altenburger legal + tax with offices in Zurich, Geneva and Lugano.
Leaders League 2024
A petrol coloured bullet point on the website of commercial Swiss law firm Altenburger legal + tax with offices in Zurich, Geneva and Lugano.Click here to see more info on this section on the website of commercial Swiss law firm Altenburger legal + tax with offices in Zurich, Geneva and Lugano.
Who’s Who Legal 2023
A petrol coloured bullet point on the website of commercial Swiss law firm Altenburger legal + tax with offices in Zurich, Geneva and Lugano.Click here to see more info on this section on the website of commercial Swiss law firm Altenburger legal + tax with offices in Zurich, Geneva and Lugano.
Legalcommunity Awards Switzerland 2023
A petrol coloured bullet point on the website of commercial Swiss law firm Altenburger legal + tax with offices in Zurich, Geneva and Lugano.Click here to see more info on this section on the website of commercial Swiss law firm Altenburger legal + tax with offices in Zurich, Geneva and Lugano.
Bilanz/Le Temps 2023
A petrol coloured bullet point on the website of commercial Swiss law firm Altenburger legal + tax with offices in Zurich, Geneva and Lugano.Click here to see more info on this section on the website of commercial Swiss law firm Altenburger legal + tax with offices in Zurich, Geneva and Lugano.
Legalcommunity Awards Switzerland 2022
A petrol coloured bullet point on the website of commercial Swiss law firm Altenburger legal + tax with offices in Zurich, Geneva and Lugano.Click here to see more info on this section on the website of commercial Swiss law firm Altenburger legal + tax with offices in Zurich, Geneva and Lugano.
Leaders League 2023
A petrol coloured bullet point on the website of commercial Swiss law firm Altenburger legal + tax with offices in Zurich, Geneva and Lugano.Click here to see more info on this section on the website of commercial Swiss law firm Altenburger legal + tax with offices in Zurich, Geneva and Lugano.
Who’s Who Legal 2022
A petrol coloured bullet point on the website of commercial Swiss law firm Altenburger legal + tax with offices in Zurich, Geneva and Lugano.Click here to see more info on this section on the website of commercial Swiss law firm Altenburger legal + tax with offices in Zurich, Geneva and Lugano.
Bilanz/Le Temps 2022

Contact

Geneva

Altenburger Ltd legal + tax

Rue Rodolphe-Toepffer 11bis

1206 Geneva

phone
+41 58 810 22 33
fax
+41 58 810 22 35

Lugano

Altenburger Ltd legal + tax

Via P. Lucchini 7

6900 Lugano

phone
+41 58 810 22 44
fax
+41 58 810 22 45

Zurich

Altenburger Ltd legal + tax

Seestrasse 39

8700 Küsnacht-Zurich

phone
+41 58 810 22 22
fax
+41 58 810 22 25