William Ruh is a co-founder and Managing Principal of Castle Creek^® Capital LLC and Castle Creek^® Financial LLC. Mr. Ruh is on the Board of Security Business Bancorp and is a board member of Mocapay, Inc., an early-stage mobile POS payment and mobile marketing technology company. Mr. Ruh has also served as Chairman of the Board and led the extensive restructuring of Ceres Group Inc., a Cleveland, Ohio-based small-cap insurance holding company and as Chairman of the Board and interim CEO for Indivos Corporation, a payment services company utilizing proprietary biometric authentication solutions. Previously, Mr. Ruh also served as a director of Hanmi Financial Corporation, the largest Korean-American bank in the United States, as well as other community banks headquartered in the US.

Prior to co-founding Castle Creek^®, Mr. Ruh was a Vice President at Belle Plaine Financial (the predecessor to Castle Creek^® Financial LLC), acting as an investment banker specializing in the financial services sector. Previously, Mr. Ruh was a commercial lending officer at The First National Bank of Chicago. Prior to that, Mr. Ruh was Director of the Racing Division for Hood Sails (the pre-eminent sail-making firm in the world in the early 1980s) and a Merchant Marine officer. He has represented the United States in three America's Cup campaigns, most recently racing with the winning America³ Foundation in 1992.

Mr. Ruh currently serves as a Trustee on the Rancho Santa Fe Foundation. Mr. Ruh also served as Trustee and as a board member on several other non-profits in North San Diego County.

Mr. Ruh holds a Bachelor of Science degree from the State University of New York Maritime College and an M.B.A. from the Fuqua School of Business at Duke University.