GSP's principal areas of expertise cover the broad field of business law, in which its lawyers have gained in-depth experience in advice and litigation, not only in the traditional business areas, but also in new fields, such as EC law and IT. GSP's lawyers are fluent in German, English and French, and some also in Italian and Hungarian.

GSP's origins date back to the 1930's. Ever since that time, GSP has developed a culture of openness as its philosophy, reflected both in its commitment to quality and stability, and in its ethos of long-term cooperation. The charges for services are agreed in advance and are billed at regular intervals, with the services rendered being itemised transparently in the invoice.

GSP's premises are located in an historic building near the train stations Zurich Tiefenbrunnen and Zollikon. They can be easily reached by private or public transport (also from the airport).