The law firm of Maître Raphaël Guisan is located in Nyon, at 14 Rue de la Morâche. Admitted to the bar in 2018, Raphaël Guisan's practice focuses on civil, criminal and commercial law. In particular, he practices family law, contract law, labor law, tenancy law, and in litigation management related to civil liability.

His skills also cover inheritance law and debt collection law, where he advises on estate planning or bankruptcy and receivership proceedings. He practices mainly in French, but is also fluent in English, enabling him to handle cases with an international clientele. He also accepts mandates for legal assistance.

The firm stands out for its strong commitment to transparency vis-à-vis clients, particularly with regard to costs and the chances of success of proceedings initiated.