Rahn+Bodmer Co. is a Swiss private bank specialized in investment advisory and asset management. The company was founded in Zürich in 1750 as a silk trading[1] house and today is the oldest private bank in Zürich.[2] Its form is a limited partnership now with five liable partners. For several generations[3] the company has been owned by the Zürich families of Rahn, Bodmer and Bidermann.[4]