Credit Suisse First Boston

Credit Suisse First Boston (also known as CSFB and CS First Boston) was the investment banking affiliate of Credit Suisse headquartered in New York.

The company was created by the merger of First Boston Corporation and Credit Suisse Group in 1988 and was active in investment banking, capital markets and financial services. In 2006, Credit Suisse reorganized and merged CS First Boston into the parent company and retired use of the "First Boston" brand. In 2022, as part of a major restructuring, Credit Suisse began the process of spinning out the investment bank into an independent company and revived the brand. The process ultimately failed, and Credit Suisse was merged into rival Swiss bank UBS.