
Schellenberg Wittmer Ltd boasts extensive experience across cloud migration, data governance, AI deployment and digital infrastructure modernisation. The practice operates across advisory, transactional and contentious work, and is noted for its handling of emerging areas such as AI compliance, cybersecurity and cross-border data transfers. At the helm is Roland Mathys, who advises on outsourcing, SaaS and cloud transactions, as well as major technology projects, and Stéphanie Chuffart-Finsterwald, who assists with complex data protection matters, software development, and new technologies. Both are experienced in managing cyber incidents and data breaches. Noémi Ziegler, formerly of MME Legal | Tax | Compliance, joined the team in April 2025 and advises on all aspects of data, AI and IT law, with particular familiarity with regulatory frameworks in sectors such as insurance, health and financial services.
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Key clients
- ABB
- Adobe
- Aity AG
- Amazon
- Amazon Web Services
- Aon
- Avaloq
- Axpo
- BASF
- Berner Kantonalbank
- Chubb
- CSS Insurance
Work highlights
Retained by MGB to advise them in the renewal of several upcoming strategic ICT contracts with software vendors, including Microsoft and SAP.
Advised Avaloq in the redesign of its contractual framework.
Assisted Givaudan in numerous data protection matters and legal assessments.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Practice head
Roland Mathys; Stéphanie Chuffart-Finsterwald
Other key lawyers
David Mamane; Lorenza Ferrari Hofer; Noémi Ziegler; Annapoorni Sitaraman; Manon Baur

