Credit Suisse is a Swiss Multinational Investment Bank and Financial Services Company.
The Investment Bank Credit Suisse was founded and is based in Switzerland however Credit Suisse is headquartered in Zürich, but maintains offices in all major financial centers around the world.
Since Credit Suisse is an Investment bank the Investment Bank Credit Suisse specializes in large and complex financial transactions, including things such as underwriting, acting as an intermediary between a securities issuer and the investing public, facilitating mergers and other corporate reorganizations, and acting as a broker and/or financial advisor for institutional clients.