Acclaimed for its ‘strong technical expertise’ and ’commercially sound advice’, clients of ALTENBURGER LTD legal + tax draw on the firm’s expertise in acquisitions, company incorporations and relocations. Team lead Thierry Thormann has a diverse client roster consisting of early-stage companies, SMEs and listed companies. He leads the team alongside Massimo Calderan, who has extensive experience in group restructurings. Manuel Moor is also proficient in M&A transactions. Ralph Imoberdorf and Marco Fusi were promoted to partner in January 2025.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘The Altenburger team is highly professional and a pleasure to work with. They handle complex legal transactions with strong technical expertise and have also provided valuable support on indirect tax matters. The team is responsive, pragmatic and solution-oriented, consistently delivering clear and commercially sound advice.’
- ‘Our main contact, Thierry Thormann, stands out for his exceptional client-focused approach. He not only takes the lead on complex M&A transactions but also explains the relevant legal aspects in a clear and practical way that allows the client to fully understand and follow the process confidently.’
- ‘Hands-on advice. Very professional, highly available and very well educated team. Collaboration largely through new means of communication made it very efficient to work with the team.’
- ‘Thierry Thormann and Marco Fusi are very experienced in their fields of practice.’
- ‘Efficient and deal-driven.’
Key clients
- Etops Group AG
- SMG Swiss Marketplace Group AG
- SwissComply Group AG
- Rohr Gebäudetechnik AG
- Helarb Management SA
- Rey Medical SA
- Dental Axess Holding AG
- Zattoo AG
Work highlights
Acted as lead counsel to the sellers in the sale of all shares in Etops Group AG to niiio finance group.
Acted as legal advisor to SMG Swiss Marketplace Group AG on its acquisition of moneyland.ch AG.
Acted as legal advisor to the shareholders of Rey Medical SA in connection with the sale of a majority stake in the company to Duo-Med BidCo BV.
Practice head
Thierry Thormann; Massimo Calderan
Other key lawyers
Manuel Moor; Ralph Imoberdorf; Marco Fusi