Contact: Annette Gelinas Senior Vice President Presidio Bank 1 Montgomery Street, Suite 2300 San Francisco, CA 94104 415.229.8415 agelinas@presidiobank.com FOR IMMEDIATE RELEASE: Presidio Bank Positions Itself for the Future with Expanded Board San Francisco, CA – November 17, 2010 – Presidio Bank (Symbol: PDOB) today announced that it has added three new board members to further enhance its talented and powerful group of directors. Bruce H. Cabral, Steven H. Oliver, and Marina H. Park bring vast collective experience to Presidio Bank. James R. Woolwine, Chairman of Presidio Bank, further expounded on their impressive credentials by saying “These three individuals will not only complement and further enhance the existing Presidio Bank Board of Directors but their respected experience and points of view will be incredible assets as well. We are very excited to include and welcome them as part of the Presidio Bank family and look forward to working together to grow the bank.” Bruce H. Cabral has held various positions in commercial and real estate lending during a 32 year career at Union Bank before his retirement in December 2009 as Executive Vice President and Chief Credit Officer. Mr. Cabral received a Bachelor’s degree in Economics from Stanford University and completed the Stanford Executive Program. Steven H. Oliver is President of Oliver & Company and has over 40 years of experience as a general contractor. Mr. Oliver has also held nearly 25 leadership positions within industry, not-for-profit and civic organizations. Most notably, he was Chairman of SFMOMA and served on the Board of Trustees for the Smithsonian Institute. As recipient of six major awards, including the Cyril Award for San Francisco Business Leadership in the Arts, Mr. Oliver has proven himself as a valuable contributor to our community. He received his Bachelor’s degree from U.C. Berkeley. Marina H. Park is Chief Executive Officer of Girl Scouts of Northern California. Prior to the Girl Scouts, Ms. Park was the Managing Partner of Pillsbury Winthrop Shaw Pittman LLP, an international law firm and gained over 20 years of broad legal experience as an attorney specializing in technology transactions, intellectual property, licensing and litigation for emerging growth and established companies. She received a Bachelor of Arts degree from U.C. Berkeley and law degree from University of Michigan. Ms. Park was recognized in 2006, 2008, 2009 and 2010, by the San Francisco Business Times with the 100 Most Influential Women in Business Award. The leadership expertise brought by these new board members from diverse industries will further augment Presidio Bank’s already strong board of directors. Current members include Craig F. Andersen, Partner of Andersen, Roscha & Odne LLP, a law firm specializing in the representation of development, construction, and engineering-related entities; Paula R. Collins, Founder and CEO of WDG Ventures, Inc., a real estate development and consulting firm; Michael A. Covarrubias, Chairman and CEO of TMG Partners, a real estate development firm; Stephen G. Heitel, President & CEO of Presidio Bank; Robert B. Leet, business consultant with 45 years of banking experience; Stephen D. Mayer, President & CEO of Burr, Pilger and Mayer, a full-service accounting firm; Gregory J. Moss, Managing Partner for San Francisco/North Bay for Cassidy Turley BT Commercial; and James R. Woolwine, Chairman of Presidio Bank. -more- Mr. Cabral expressed his enthusiasm in joining the Presidio Bank Board of Directors, “It is great to join a board for a company that is young, dynamic, and has a strong foundation for growth. Most would agree that in this current economy, that opportunity is a rarity.” Mr. Oliver and Ms. Park are similarly excited about their leadership roles with Presidio Bank and to foster continued growth for years to come. About Presidio Bank Presidio Bank provides business banking services to small and mid-size businesses and to their owners who desire personalized, responsive service with access to local decision makers. Locally owned and operated, Presidio Bank is headquartered in San Francisco, California and currently operates four banking offices in San Francisco, Walnut Creek, San Rafael and Palo Alto. More information is available at www.presidiobank.com. Presidio Bank is a member of FDIC and an Equal Housing Lender. ### This press release contains certain forward-looking statements that involve risk and uncertainties. These statements are identifiable by use of the words “believe,” “expect,” “intend,” “anticipate,” “plan,” “estimate,” “project,” or similar expressions. The risks and uncertainties that may affect the operations, performance, development, growth projections and results of Presidio Bank’s business include, but are not limited to, the growth of the economy, interest rate movements, timely development by Presidio Bank of technology enhancements for its products and operating systems, the impact of competitive products, services and pricing, client-based requirements, Congressional legislation, changes in regulatory or generally accepted accounting principles and similar matters. Readers are cautioned not to place undue reliance on forward-looking statements which are subject to influence by the named risk factors and unanticipated future events. Actual results, accordingly, may differ materially from management expectations.