Founded in 1988 in Geneva, NGSA specializes in the field of prestigious numismatics. In over 30 years of business, we have built up an international clientele through our expertise and the organization of auctions. We are a benchmark in the field of collector coins. NGSA’s team is renowned for its reliability, speed and availability, and has also won the trust of numerous banking institutions in Switzerland and abroad. Today, our company is a key player in the market. For any evaluation, appraisal or offer to buy or sell coins, medals, our team is at your entire disposal.

Herr Poni hat uns beim Verkauf unseres Elternhauses sehr kompetent beraten. Er kennt den Häusermarkt sehr gut und wir fühlten uns von Anfang an in den besten Händen. Herr Poni ist freundlich, zuverlässig und sehr effizient. Wir konnten unser Haus innerhalb kürzester Zeit und ohne jeglichen Stress verkaufen und sind mit dem Ergebnis sehr zufrieden. Vielen Dank Herr Poni. Die Erbengemeinschaft Ursula, Barbara und Cornelia

Our company led by Enrico F. Sbrizzai, serves the high-end property market for the entire canton of Graubünden with a focus on the Engadine region. The office in St Moritz builds on the already strong presence of Sotheby's International Realty. As Sotheby’s International Realty, we have devoted ourselves to finding extraordinary properties to suit those with an extraordinary lifestyle. St. Moritz Sotheby's International Realty has been your reliable, fair and competent partner for real estate in the Engadine for 7 years. We combine local market knowledge and worldwide exposure. Our network includes over 1000 offices in more than 70 countries. Immerse yourself in the world of Sotheby's. We look forward to getting to know you and making your own dream come true.