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Your counsel in a complex world

Klein is an independent business law firm that offers a broad spectrum of tailored advisory, bespoke solutions, and result-oriented services. We represent private and corporate clients, providing innovative, integrated, and carefully crafted solutions for complex legal matters in a fast-changing environment.  

Our attorneys use a unique blend of agility, entrepreneurialism, creativity and curiosity to maximise the potential of international law. We take an ‘out of the box’ perspective that delivers the best outcomes for our clients.  

Our offer

As our client, you are assured of our considered insight into the future of your business and interests. The partnership between us creates space for you to focus on running and growing your business, while we anticipate the challenges and opportunities that lie ahead. 

Close proximity to our partners gives you instant access to state-of-the-art insight, best practice and specialised expertise. And this is supported by a flexible and agile team that’s able to deal with any issues created by changes in the market, regulation, and domestic or international law. Our goal is to offer you peace of mind by designing and delivering bespoke solutions that achieve the best outcomes for you.  

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News

25.02.2026

Klein successfully supported a client in the contractual negotiations and closing for the sale of a Bombardier Global 5000 aircraft. Gianni Rizzello and Martin Boric, Senior Partners at Klein, advised and assisted the client in the transaction.

16.02.2026

Klein successfully supported its client in the contractual negotiations and conclusion of a yacht construction agreement for a fully custom made 50m+ sailing yacht to be constructed and delivered by a renowned Dutch shipyard. The support included the drafting and negotiation of the yacht construction agreement, the design agreements for the interior and exterior design […]

13.02.2026

An article by David Dalla Vecchia entitled “Treuepflicht von Arbeitnehmenden gemäss Schweizer Arbeitsrecht” has been published in EXPERT FOCUS (EF 2/26). The article examines the pre-contractual, contractual and post-contractual phases of the employment relationship, as well as the legal consequences of breaches of duty.

03.11.2025

Klein successfully supported a client in the contractual negotiations and closing for the sale of a Pilatus PC-12NG aircraft. Gianni Rizzello, Senior Partner at Klein, advised and assisted the client in the transaction.

02.10.2025

Klein successfully supported a client in the contractual negotiations and closing for the sale of a Dassault Falcon 900EX aircraft. Gianni Rizzello, Senior Partner at Klein, advised and assisted the client in the transaction.

28.03.2025

Klein successfully supported a client in the contractual negotiations and closing for the sale of a Bombardier Global 5000 aircraft. Thomas Verschuuren Kopfstein, Senior Partner at Klein, advised and assisted the client in the transaction